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This page shows you the most recent publications within this specialty of the MedWorm directory. This is page number 26.

Left gaze bias in humans, rhesus monkeys and domestic dogs.email this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
While viewing faces, human adults often demonstrate a natural gaze bias towards the left visual field, that is, the right side of the viewee's face is often inspected first and for longer periods. Using a preferential looking paradigm, we demonstrate that this bias is neither uniquely human nor limited to primates, and provide evidence to help elucidate its biological function within a broader social cognitive framework. We observed that 6-month-old infants showed a wider tendency for left gaze preference towards objects and faces of different species and orientation, while in adults the bias appears only towards uprig...
Source: Animal Cognition - October 17, 2008 Category: Zoology Authors: Guo K, Meints K, Hall C, Hall S, Mills D Tags: Anim Cogn Source Type: journals

Gorillas' (Gorilla gorilla) use of experimenter-given manual and facial cues in an object-choice task.email this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Several experiments have been performed to examine the great apes' use of experimenter-given manual and visual cues in object-choice tasks. Considering their use of referential gestures in gaze-following paradigms, great apes perform surprisingly unsuccessfully in object-choice tasks. However, the large majority of object-choice experiments have been conducted with chimpanzees (Pan troglodytes) with very few experiments including other great ape species, making it difficult to generalize about the great apes. Interestingly, the only object-choice task conducted with gorillas (Gorilla gorilla) has indicated successful u...
Source: Animal Cognition - October 17, 2008 Category: Zoology Authors: Byrnit JT Tags: Anim Cogn Source Type: journals

Apoptotic markers can be used to forecast the freezeability of stallion spermatozoa.email this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
In an attempt to identify valuable markers for potential freezeability of the equine spermatozoa, three ejaculates were collected from five Andalusian stallions and frozen using a standard protocol. Before freezing, three apoptotic cell markers were studied by flow cytometry (early changes in sperm membranes, mitochondrial membrane potential and caspase activity). Post-thaw, spermatozoa were again evaluated for these parameters. Sperm kinematics using CASA were also studied before and after freezing and thawing. Receiving operating system curves were used to evaluate the relative value of the apoptotic markers herein s...
Source: Animal Reproduction Science - October 17, 2008 Category: Zoology Authors: Ortega-Ferrusola C, Macías García B, Gallardo-Bolaños JM, González-Fernández L, Rodríguez-Martinez H, Tapia JA, Peña FJ Tags: Anim Reprod Sci Source Type: journals

Dusky dolphin (Lagenorhynchus obscurus) subgroup distribution: are shallow waters a refuge for nursery groups?email this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
J. S. Weir, N. M.T. Duprey, and B. Würsig - Mammalian young are especially vulnerable to harm because of their small size, poorly developed survival skills, and strong dependence on maternal care. Tactics for rearing...
Source: Canadian Journal of Zoology - October 16, 2008 Category: Zoology Source Type: journals

Determination of angiotensin-I converting enzyme inhibitory peptides in chicken leg bone protein hydrolysate with alcalaseemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
This study aims to identify peptides with angiotensin-I converting enzyme (ACE) inhibitory activity in hydrolysate from chicken leg bone protein hydrolyzed with alcalase for 4 h (A4H). The hydrolysate has demonstrated potent in vitro ACE inhibitory activity, and has been shown to attenuate the development of hypertension and cardiovascular hypertrophy in spontaneously hypertensive rats (SHR). A4H is competitive for ACE and was separated using high-performance liquid chromatography (HPLC) with a gel filtration column (Superdex Peptide HR 10/30). The results show that A4H is a mixed non-competitive inhibitor. Eighteen fracti...
Source: Animal Science Journal - October 14, 2008 Category: Zoology Authors: Fu-Yuan CHENG, Tien-Chun WAN, Yu-Tse LIU, Chi-Ming CHEN, Liang-Chuan LIN, Ryoichi SAKATA Source Type: journals

Ability of heifers to discriminate between familiar herdmates and members of an unfamiliar group: preference test and operant conditioning testemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
In conclusion, heifers did not show a preference toward familiar or unfamiliar individuals; but after conditioning, some heifers could learn to discriminate between familiar and unfamiliar groups.
Source: Animal Science Journal - October 13, 2008 Category: Zoology Authors: Yuki KOBA, Lene MUNKSGAARD, Hajime TANIDA, Lene PEDERSEN Source Type: journals

The structure of vocalization of ewes and male lambs at pastureemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
We performed an analysis of the vocalization of 161 ewes and 50 male lambs that were pastured day and night. The vocalization structures of the phonetic notations of the opened-mouth from closed mouth /[eta]aee/ and /[eta]naeee/ and closed-mouth /[eta][eta][eta][eta]/ of ewes, and the opened-mouth from closed-mouth /[eta]eee/ and /[eta]neeee/ and closed-mouth /[eta][eta][eta][eta]/ of male lambs were studied in terms of their audio characteristics. The items subject to analysis included duration of each vocalization, fundamental frequency, sound pressure and first formant (F1), second formant (F2), and third formant (F3). ...
Source: Animal Science Journal - October 13, 2008 Category: Zoology Authors: Hirofumi NAEKAWA Source Type: journals

The evaluation of the curd forming ability of milk replacersemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
This study showed that most of the milk replacers sold in Japan could not form the curd with rennet.
Source: Animal Science Journal - October 13, 2008 Category: Zoology Authors: Keiji OKADA, Junro KATO, Tamako MIYAZAKI, Kentaro IKUTA, Yoshihisa NAITO, Jun YASUDA Source Type: journals

Effect of cooking time on some nutrient and antinutrient components of bambaragroundnut seedsemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
The proximate composition, gross energy, mineral composition, percentage sugar, oligosaccharides and antinutrient substances of bambaragroundnut seeds subjected to different cooking times were determined. The seeds were cooked for 30, 60, 90 and 120 min. Results of the proximate analysis showed that only the ether extract and ash were significantly (P < 0.05) reduced as the cooking time increased. In contrast, gross energy values significantly (P < 0.05) increased with increased cooking time. Amongst, the mineral elements assayed, calcium, magnesium and iron were significantly (P < 0.05) increased, while phosphorous, potas...
Source: Animal Science Journal - October 13, 2008 Category: Zoology Authors: Stanley Omoh OMOIKHOJE, Mohammed Bashiru ARUNA, Adeyemi Mustapha BAMGBOSE Source Type: journals

Effects of dietary glucose level during late gestation on litter performance and glucose concentration in sowsemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
In conclusion, feeding glucose to sows during 5 days before parturition increased birth weight of live-born piglet and decreased sows feed intake during lactation, but did not affect the performance of sows and piglets.
Source: Animal Science Journal - October 13, 2008 Category: Zoology Authors: Young-Keun HAN, Qi WANG, Jin-Ho CHO, Ying-Jie CHEN, Joo-Sang YOO, Seung-Oh SHIN, In-Ho KIM Source Type: journals

The effect of fermented apple diet supplementation on the growth performance and meat quality in finishing pigsemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
The objective of the present study was to investigate the effect of fermented apple diet (FAD) supplementation on the growth performance and meat quality in finishing Berkshires. The FAD was made from dropped apple mixed with rice bran and barley bran. Until 81 ± 1 kg live weight at 133 ± 1 days, the animals were fed a growing diet, after which experimental samples were fixed at 0, 2, 4 and 6% FAD as C, T1, T2 and T3 in the finishing diets. Growth performance, ADG, ADFI and feed efficiency were improved in T1 than other groups. In carcass parameters, carcass weight was higher (P < 0.05) in T1 than in other groups. In mea...
Source: Animal Science Journal - October 13, 2008 Category: Zoology Authors: Sung Dae LEE, Hoi Yun KIM, Hyun Jung JUNG, Sang Yun JI, Rekha CHOWDAPPA, Ji Hee HA, Young Min SONG, Jun Cheol PARK, Hong Kil MOON, In Cheul KIM Source Type: journals

Relationships between physical and structural properties of intramuscular connective tissue and toughness of raw porkemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
We studied the relationships between the shear-force value and physical and structural properties of the intramuscular connective tissue (IMCT) in six classes of porcine skeletal muscle to elucidate the contribution of IMCT to toughness of raw pork. The shear-force value of raw pork correlated significantly with that of the IMCT model prepared from each class of skeletal muscle (P < 0.05). The correlation suggested that the variable toughness of pork was caused by the mechanical strength of the endomysium and perimysium. The thickness of the secondary perimysium correlated significantly with the shear-force value of raw po...
Source: Animal Science Journal - October 13, 2008 Category: Zoology Authors: Takanori NISHIMURA, Suhong FANG, Jun-ichi WAKAMATSU, Koui TAKAHASHI Source Type: journals

Evolution and maintenance of colour pattern polymorphism in Liopholis (Squamata : Scincidae)email this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
David G. Chapple, Mark N. Hutchinson, Brad Maryan, Mike Plivelich, Jennifer A. Moore, J. Scott Keogh - Volume 56(2)
Source: Australian Journal of Zoology - October 12, 2008 Category: Zoology Source Type: journals

In superb fairy wrens (Malurus cyaneus), nuptial males have more blood parasites and higher haemoglobin concentration than eclipsed malesemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Diane Colombelli-Négrel, Sonia Kleindorfer - Volume 56(2)
Source: Australian Journal of Zoology - October 12, 2008 Category: Zoology Source Type: journals

Basking and diurnal foraging in the dasyurid marsupial Pseudantechinus macdonnellensisemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Chris R. Pavey, Fritz Geiser - Volume 56(2)
Source: Australian Journal of Zoology - October 12, 2008 Category: Zoology Source Type: journals

Understorey predicts the spatial distribution of Ixodes hirsti in South Australiaemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Margot Oorebeek, Sonia Kleindorfer - Volume 56(2)
Source: Australian Journal of Zoology - October 12, 2008 Category: Zoology Source Type: journals

Population attributes of the spotted-tailed quoll (Dasyurus maculatus) in north-eastern New South Walesemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
A. S. Glen - Volume 56(2)
Source: Australian Journal of Zoology - October 12, 2008 Category: Zoology Source Type: journals

Lipid peroxidation, mitochondrial membrane potential and DNA integrity of spermatozoa in relation to intracellular reactive oxygen species in liquid and frozen-thawed buffalo semen.email this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Several factors affect sperm motility and functional integrity during preservation; the damage caused by reactive oxygen species (ROS) being an important factor. The present study investigated intracellular ROS generation and its relationship with sperm motility, lipid peroxidation (LPO), mitochondrial membrane potential (MMP) and DNA integrity during preservation (liquid preservation at 4 degrees C and cryopreservation) of buffalo semen. Fifty-six ejaculates, eight each from seven buffalo bulls (Bubalus bubalis) were utilized for the study. Intracellular ROS level was detected using 2'-7'-dichlorodihydrofluorescein di...
Source: Animal Reproduction Science - October 11, 2008 Category: Zoology Authors: Kadirvel G, Kumar S, Kumaresan A Tags: Anim Reprod Sci Source Type: journals

Maternal plasma oestrone sulphate concentration prior to parturition in relation to birth weight of the calf in primiparous, 2-year-old, Angus heifers.email this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Dystocia and assisted calving in primiparous heifers are persistent problems in beef herds, and incidence increases with increasing birth weight of calves. Plasma samples taken from 33 primiparous, 2-year-old, Angus heifers 2 days prior to parturition were analysed for oestrone sulphate concentration. Additional samples taken at 4, 6, 8 and 10 days prior to parturition were analysed for 17 of these heifers. At parturition, birth weight of the calf, post-partum live weight of the heifer, assistance at calving (n=6) and status of the calf (stillborn (n=4) vs. alive) were recorded. Maternal plasma oestrone sulphate concen...
Source: Animal Reproduction Science - October 11, 2008 Category: Zoology Authors: Hickson RE, Kenyon PR, Lopez-Villalobos N, Morris ST Tags: Anim Reprod Sci Source Type: journals

Stimulation of plasminogen activator activity by free radicals in boar spermatozoa.email this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Plasminogen activators (PAs), commonly found on the membrane of spermatozoa, convert plasminogen into plasmin and may participate in mammalian fertilization. Correlations have been reported between reactive oxygen species (ROS) and spermatozoa function, although the relationship between PA activity and ROS is unknown. We investigated the effects of ROS on PA activity. We used an in vitro model of free radical generation whereby boar spermatozoa were preincubated in xanthine and xanthine oxidase (X-XO) and PA activity was then measured. The acrosome reaction of boar spermatozoa was significantly promoted by 100mU/mL pla...
Source: Animal Reproduction Science - October 11, 2008 Category: Zoology Authors: Kim TS, Sa SJ, Shin MY, Jang DM, Kwon SH, Kwon EH, Cho KH, Park CK, Lee DS Tags: Anim Reprod Sci Source Type: journals

Factors affecting progesterone production in corpora lutea from pregnant and diestrous bitches.email this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Factors affecting the characteristics of corpora lutea (number, left/right ovary origin, weight, DNA and progesterone content) were studied in 73 healthy bitches divided into two classes of age (</=2.5 vs. >2.5 years; mean+/-S.E.=3.6+/-0.3 years; range: 0.7-10 years), weight (</=20 vs. >20kg; mean+/-S.E.=16.2+/-1.2kg; range: 5-45kg), reproductive status (pregnancy vs. diestrous; pregnant bitches N=41 and diestrous bitches N=32), stage of luteal phase (20-40 vs. 41-55 days) and ovulation rate (</=7 vs. >7). Two different assessments were performed: (a) comparison of luteal tissue characteristics and pr...
Source: Animal Reproduction Science - October 11, 2008 Category: Zoology Authors: Marinelli L, Rota A, Carnier P, Da Dalt L, Gabai G Tags: Anim Reprod Sci Source Type: journals

Japanese medaka Hox paralog group 2: insights into the evolution of Hox PG2 gene composition and expression in the Osteichthyes.email this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Hox paralog group 2 (PG2) genes function to specify the development of the hindbrain and pharyngeal arch-derived structures in the Osteichthyes. In this article, we describe the cDNA cloning and embryonic expression analysis of Japanese medaka (Oryzias latipes) Hox PG2 genes. We show that there are only two functional canonical Hox genes, hoxa2a and b2a, and that a previously identified hoxa2b gene is a transcribed pseudogene, psihoxa2b. The functional genes, hoxa2a and b2a, were expressed in developing rhombomeres and pharyngeal arches in a manner that was relatively well conserved compared with zebrafish (Danio rerio...
Source: Journal of Experimental Zoology. Part B. Molecular and Developmental Evolution - October 10, 2008 Category: Zoology Authors: Davis A, Scemama JL, Stellwag EJ Tags: J Exp Zoolog B Mol Dev Evol Source Type: journals

Effects of SOF and CR1 media on developmental competence and cell apoptosis of ovine in vitro fertilization embryos.email this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
The present study was to investigate effects of synthetic oviductal fluid (SOF) and Charles Rosenkrans medium (CR1) culture systems on developmental competence and cell apoptosis of ovine in vitro fertilization (IVF) embryos. Ovine presumptive IVF zygotes were cultured in the following six media: (1) SOF supplemented with amino acids (SOFaa) and 8mg/ml bovine serum albumin (BSA) for 9 days (SOFaaBSA); (2) SOFaa supplemented with 10% fetal bovine serum (FBS) for 9 days (SOFaaFBS); (3) SOFaaBSA for first 3 days and then SOFaaFBS for later 6 days (SOFaaBSA-FBS); (4) CR1 supplemented with amino acids (CR1aa) and 8mg/ml BSA...
Source: Animal Reproduction Science - October 8, 2008 Category: Zoology Authors: Wan PC, Hao ZD, Zhou P, Wu Y, Yang L, Cui MS, Liu SR, Zeng SM Tags: Anim Reprod Sci Source Type: journals

Early apoptosis is associated with improved developmental potential in bovine oocytes.email this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
The poor quality of oocytes may be the main reason for the low efficiency of the current in vitro embryo production. However, efforts are required to understand the mechanisms of oocyte development, which is believed to be largely regulated by apoptosis in vivo. The aim of this study was to investigate the levels of apoptosis in bovine immature oocytes with different developmental potentials and to determine whether early apoptosis in bovine oocytes is correlated with their subsequent development. Cumulus-oocyte complexes (COCs) were selected and classified into four groups according to oocyte cytoplasm and cumulus sta...
Source: Animal Reproduction Science - October 8, 2008 Category: Zoology Authors: Li HJ, Liu DJ, Cang M, Wang LM, Jin MZ, Ma YZ, Shorgan B Tags: Anim Reprod Sci Source Type: journals

Expression of IGF receptors and its ligands in bovine oocytes and preimplantation embryos.email this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
The objectives of this study were to assess the mRNA expression and protein location of IGF receptors and its ligands in bovine oocytes and different stages of preimplantation embryos, and then evaluate the effect of different concentrations of IGF-II when added to either the maturation or culture medium on in vitro embryo development. For the assessment of mRNA expression by RT-PCR three replicates each of 100 oocytes, and 60 embryos at each of the 2-cell, 8-cell, morula and blastocyst stages of development were used. Immunocytochemical techniques were used to study the location of IGFs and their receptors for COC, oocyte...
Source: Animal Reproduction Science - October 8, 2008 Category: Zoology Authors: Wang LM, Feng HL, Ma YZ, Cang M, Li HJ, Yan Z, Zhou P, Wen JX, Bou S, Liu DJ Tags: Anim Reprod Sci Source Type: journals

Chimpanzees (Pan troglodytes) know what can be seen from where.email this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Visual perspective taking research has established that chimpanzees recognize what others can or cannot see in the presence of occluding barriers. Less is known about chimpanzees' appreciation of what they themselves can or cannot see in similar situations. Additionally, it is unclear whether chimpanzees must rely on others' gaze cues to solve such tasks or whether they have a more general appreciation of what can be seen from where. Hence, we investigated chimpanzees' ability to anticipate what they would or would not be able to see from different visual perspectives. Food was hidden among arrays of open containers, w...
Source: Animal Cognition - October 7, 2008 Category: Zoology Authors: Krachun C, Call J Tags: Anim Cogn Source Type: journals

The effect of Eucommia ulmoides leaf supplementation on the growth performance, blood and meat quality parameters in growing and finishing pigsemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
The aim of the present study was to investigate the effect of Eucommia ulmoides leaf (EUL) supplementation on the growth performance, blood and meat quality parameters in growing and finishing pigs. Ninety gilts (L × LW × D, 20 kg initialBW) were housed 10 per pen in a front-open building with three replicate pens per treatment. Experimental treatment was started from the beginning of the growing stage (20 ± 3 kg) by supplementing EUL at 0(C), 3(T1) and 5% (T2) to the growing and finishing diet. Pigs were slaughtered by electrical stunning at 105 ± 3 kg live weight. Average daily feed intake (ADFI, kg/day) decreased (P...
Source: Animal Science Journal - October 6, 2008 Category: Zoology Authors: Sung Dae LEE, Hoi Yun KIM, Young Min SONG, Hyun Jung JUNG, Sang Yun JI, Hae Dong JANG, Jae Weon RYU, June Cheol PARK, Hong Kil MOON, In Cheul KIM Source Type: journals

Characterization of bacteriocin produced by Streptococcus bovis J2 40-2 isolated from traditional fermented milk 'Dahi'email this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
A bacteriocin-producing strain Streptococcus bovis J2 40-2 was isolated from traditional fermented milk 'Dahi' in Bangladesh. Despite its narrow antimicrobial spectrum, it showed strong antimicrobial activity against extremely challenging and problematic organisms in foods, such as Listeria monocytogenes. Bacteriocin was sensitive to several proteolytic enzymes and showed antimicrobial activity over a wide pH range of 2.0[ndash]10.0. It was stable when heated to 110°C for 20 min, but lost 25% of its activity when heated to 121°C for 15 or 20 min. Optimum bacteriocin production (5600 AU/mL) was achieved when the strain wa...
Source: Animal Science Journal - October 6, 2008 Category: Zoology Authors: Harun-ur RASHID, Kaname TOGO, Minoru UEDA, Taku MIYAMOTO Source Type: journals

Dietary phytase increases the true absorption and endogenous fecal excretion of zinc in growing pigs given a corn-soybean meal based dietemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
We investigated the effect of dietary phytase on the true absorption and endogenous fecal excretion of zinc (Zn) using 67Zn in growing pigs given a corn-soybean meal based diet. Ten crossbred barrows were fed the control diet containing 90-mg/kg Zn, 2.3-g/kg phytate-phosphorus and 3.7-g/kg non-phytate-phosphorus or the phytase diet containing similar amounts of Zn and phytate-phosphorus, and 1.4-g/kg non-phytate-phosphorus with 750-PU/kg phytase for 12 h/day. On day 6, the pigs were given 200 g of the corresponding diet labeled by 67Zn for 2 h. We measured feed intake, fecal Zn concentration and 67Zn abundance for the dete...
Source: Animal Science Journal - October 6, 2008 Category: Zoology Authors: Gyo-Moon CHU, Motoharu KOMORI, Ryota HATTORI, Tohru MATSUI Source Type: journals

Effects of GH gene polymorphism and sex on carcass traits and fatty acid compositions in Japanese Black cattleemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
To investigate the effects of bovine growth hormone (bGH) gene polymorphism on carcass traits and fatty acid compositions in Japanese Black cattle caused by nucleotide substitution of CTG (allele A)/GTG (allele B) at codon 127 and of ACG (allele A and B)/ATG (allele C) at codon 172 of bGH, GH genotypes of 135 cattle were determined using allele specific-multiplex polymerase chain reaction (PCR). Allele A gave greater rib thickness and lower melting point of fat (MP) while allele B gave higher C18:1% (P < 0.05). Allele C gave higher C18:1, monounsaturated fatty acid (MUFA), unsaturated fatty acid (USFA) percentages (P < 0.0...
Source: Animal Science Journal - October 6, 2008 Category: Zoology Authors: Astrid ARDIYANTI, Yoshie OKI, Yoshihito SUDA, Keiichi SUZUKI, Koichi CHIKUNI, Yoshiaki OBARA, Kazuo KATOH Source Type: journals

Effects of feeding fermented fish on egg cholesterol content in hensemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
In conclusion, this study demonstrated that FF increased DHA and reduced egg yolk cholesterol in poultry eggs.
Source: Animal Science Journal - October 6, 2008 Category: Zoology Authors: Teck-Chwen LOH, Fang-Ling LAW, Yong-Meng GOH, Hooi-Ling FOO, Idrus ZULKIFLI Source Type: journals

Effects of herbage intake on goat performance in the mediterranean type natural pasturesemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
This study aimed at identifying changes in natural pastures during the grazing season and investigating the effects of these changes on pasture feeding potential for high yielding dairy goats. During the study, 12 dairy goats were grazed on a 1.5 ha natural pasture for three months from April to June in 2003, 2004 and 2005. The goats were fed 0.5 kg/day of concentrate as a supplement during the grazing season. Botanical composition, herbage production and intake, crude protein (CP), neutral detergent fiber (NDF) and acid detergent fiber (ADF) contents of the pasture were determined. Live weight, milk yield, milk dry matter...
Source: Animal Science Journal - October 6, 2008 Category: Zoology Authors: Basri H. HAKYEMEZ, Ahmet GOKKUS, Turker SAVAS, Ismail Y. YURTMAN Source Type: journals

Methodology for the study of the hypothalamic-pituitary hormone secretion in cattleemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
This article clarifies the potential of neuroendocrine study techniques in cattle.
Source: Animal Science Journal - October 6, 2008 Category: Zoology Authors: Tsutomu HASHIZUME, Etsuko KASUYA Source Type: journals

Nutrient utilization and manure P excretion in growing pigs fed corn-barley-soybean based diets supplemented with microbial phytaseemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
The effect of high levels of microbial phytase supplementation in diets for growing pigs was studied in a 2-week performance and nutrient digestibility trial involving 28 growing pigs weighing 16.4 ± 1.06 (mean ± SD) kg. Seven corn-barley-soybean meal-based diets consisting of a positive control (PC) formulated to meet or exceed NRC nutrient requirements; a negative control (NC) with non-phytate P reduced by 0.1% unit from NRC requirement and fed without or with 500 or 1000 U/kg; a doubled negative control (DNC) with no added inorganic P and fed without or with 2000 or 4000 U/kg. Chromic oxide was added as an indigestibl...
Source: Animal Science Journal - October 6, 2008 Category: Zoology Authors: Adewale EMIOLA, Oluwole AKINREMI, Bogdan SLOMINSKI, C. Martin NYACHOTI Source Type: journals

Environmental impacts of a Japanese dairy farming system using whole-crop rice silage as evaluated by life cycle assessmentemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
The objectives of this study were to assess and compare the environmental impacts of two types of dairy farming systems, one of which makes use of whole-crop rice silage and the other of which is conventional, using life cycle assessment (LCA). The functional unit was defined as 1 kg of 4% fat-corrected milk (FCM). The processes associated with the dairy farming life cycle, such as feed production, feed transport, animal management including biological activity of the animal, and waste treatment were included within the system's boundaries. Environmental impacts of the rice silage-using and conventional dairy farming syste...
Source: Animal Science Journal - October 6, 2008 Category: Zoology Authors: Akifumi OGINO, Motohiko ISHIDA, Tetsuya ISHIKAWA, Atsuo IKEGUCHI, Miyoko WAKI, Hiroshi YOKOYAMA, Yasuo TANAKA, Hiroyuki HIROOKA Source Type: journals

Quantitative real-time PCR monitoring of Escherichia coli and Clostridium perfringens with oral administration of Lactobacillus plantarum strain Lq80 to weaning pigletsemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Levels of fecal or intestinal lactobacilli, Escherichia coli and Clostridium perfringens, and the prevalence of clostridial alpha toxin gene and heat-stable toxin (ST) gene of enterotoxigenic E. coli (ETEC) were monitored in weaned piglets before (day 0) and during (days 7, 14, and 21) the administration of Lactobacillus plantarum strain Lq80. Lactobacilli were enumerated in a culture-dependent method. The remainders were determined by quantitative real-time PCR. In this quantitative real-time PCR method, the detection limit was proved to be as low as 103 cells/g feces or intestinal contents. Number of lactobacilli increas...
Source: Animal Science Journal - October 6, 2008 Category: Zoology Authors: Shunsuke TAKAHASHI, Yoko YOSHIDA, Nobuo NAKANISHI, Takamitsu TSUKAHARA, Kazunari USHIDA Source Type: journals

The effect of approach direction and pace on flight distance of beef breeding cowsemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
The aim of this study is to determine the effect of approach direction and pace on flight distance of beef breeding cows. Five Japanese Black breeding cows were used as experimental cattle. Three approach directions were tested; that were the approach toward the head of the test cow from the front direction (FRONT), the approach toward to the foreleg of the test cow from the right or left (SIDE) and the approach toward to hind-leg of the test cow diagonally from the right or left rear (BACK). Three levels of approach pace were also tested; that were the approach at a pace of 7 km/h, the approach at a pace of 4 km/h, and th...
Source: Animal Science Journal - October 6, 2008 Category: Zoology Authors: Takami KOSAKO, Michiru FUKASAWA, Daisuke KOHARI, Kumiko OIKAWA, Hideharu TSUKADA Source Type: journals

Structural weakening of intramuscular connective tissue during postmortem aging of porkemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
We studied structural changes in the endomysium and perimysium during postmortem aging of pork using the cell-maceration/scanning electron microscope method. Immediately post mortem, endomysia sheaths that house individual muscle fibers displayed a honeycomb-like structure. The sheaths of the endomysium consisted of tightly arranged collagen fibrils in a random network. The perimysium comprised several layers of wavy sheets made up of tightly bundled collagen fibers. While the structure of the intramuscular connective tissues remained almost unchanged up to five days post mortem, the endomysium had resolved into individual...
Source: Animal Science Journal - October 6, 2008 Category: Zoology Authors: Takanori NISHIMURA, Suhong FANG, Toshiaki ITO, Jun-ichi WAKAMATSU, Koui TAKAHASHI Source Type: journals

Identification of an antihypertensive peptide derived from chicken bone extractemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
A novel angiotensin-converting enzyme (ACE) inhibitory peptide was isolated and purified from chicken bone extract by enzymatic digestion. The peptide was defined as an ACE inhibitor, and it demonstrated antihypertensive activity following oral administration to spontaneously hypertensive rats (SHRs). The results of this study suggest that peptides derived from an extract of chicken bones, administered orally, have the ability to reduce the blood pressure of SHRs significantly over a short period of time (3 h). Moreover, the blood pressure then remains low for 3 h. This peptide derived from chicken bones may therefore have...
Source: Animal Science Journal - October 6, 2008 Category: Zoology Authors: Koji NAKADE, Ryosuke KAMISHIMA, Yusuke INOUE, Abdulatef AHHMED, Satoshi KAWAHARA, Tatsuo NAKAYAMA, Masugi MARUYAMA, Masahiro NUMATA, Kazuyoshi OHTA, Yoshitaka AOKI, Michio MUGURUMA Source Type: journals

Identification of a novel Bacillus species isolated from Calculus Bovisemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
A novel Bacillus species of Calculus Bovis (cow gallstone) was isolated and identified in this study. Morphological features, bacterial fatty acid analysis using a microbial identification system, carbon source utilization profiles using Biolog system and 16S rDNA sequencing were employed to identify the isolated bacterium. This isolated bacterium was observed to be Gram-negative, aerobic growing, rod-shaped and short chain. The results of bacterial fatty acid analysis and physiological characteristics were not matched to the database. The main fatty acids found in the bacterium were 65.96% branched chain saturated fatty a...
Source: Animal Science Journal - October 6, 2008 Category: Zoology Authors: Tien-Chun WAN, Fu-Yuan CHENG, Yu-Tse LIU, Chao-Ming WANG, Ching-Lin SHYU, Chih-Ming CHEN, Liang-Chuan LIN, Ryoichi SAKATA Source Type: journals

Structural determination of the oligosaccharides in the milk of a giant anteater (Myrmecophaga tridatyla)email this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
There appears to be strong evidence supporting four major clades of placental mammals: (i) Afrotheria; (ii) Xenarthea; (iii) Euarchontoglires; and (iv) Laurasiathera. This is the first study in which the carbohydrates have been analyzed in the milks of Xenarthea. Our aim was to clarify whether the saccharides of giant anteater milk resemble those of other eutherian species, especially of the Asian elephant, which is one of the Afrotherea. We found that lactose is a dominant saccharide in this milk, as it is in that of most eutherians, and that the milk contains smaller amounts of oligosaccharides, whose structures were det...
Source: Animal Science Journal - October 6, 2008 Category: Zoology Authors: Tadasu URASHIMA, Miki KOMODA, Sadaki ASAKUMA, Yusuke UEMURA, Kenji FUKUDA, Tadao SAITO, Olav T. OFTEDAL Source Type: journals

Growth and its relationship to fledging success of African black oystercatcher Haematopus moquini chicks.email this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
We investigated the growth of African black oystercatcher Haematopus moquini chicks on Robben Island, South Africa, over three austral summers, 2001-2004. Using a robust regression analysis to determine the growth parameters of chicks of known and unknown age we found that oystercatchers from our study population had a Gompertz growth rate coefficient that was 2% less than predicted for body mass based on the equation for waders. Leg growth lagged initially, then increased and slowed again as the chicks became older, whereas wing growth was slow initially but increased with age. Chicks with small growth rate coefficien...
Source: Zoology - October 4, 2008 Category: Zoology Authors: Tjørve KM, Underhill LG Tags: Zoology (Jena) Source Type: journals

New release:email this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
The Systematics of New World Clinocera Meigen by Bradley Sinclair [more]
Source: Canadian Journal of Zoology - October 3, 2008 Category: Zoology Source Type: journals

Chiasmate meiosis in male black fly (Diptera: Simuliidae) larvae associated with mermithid infections (Nematoda: Mermithidae)email this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
A. L. Sharp and F. F. Hunter - Mermithid nematodes (Nematoda: Mermithidae) parasitize larval, pupal, and adult black flies (Diptera: Simuliidae) and may result in the development of intersex adults, generally considered to...
Source: Canadian Journal of Zoology - October 3, 2008 Category: Zoology Source Type: journals

Nest-site characteristics and breeding success of three species of boreal songbirds in western Newfoundland, Canadaemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Kate L. Dalley, Philip D. Taylor, and Dave Shutler - Delineating habitat requirements and preferences of species is essential for conservation planning. We studied nest habitat use and effects of microsite vegetation characteristics on breeding...
Source: Canadian Journal of Zoology - October 3, 2008 Category: Zoology Source Type: journals

Photoperiod alters pain responsiveness via changes in pelage characteristicsemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Zachary M. Weil, Michelle Gatien Hotchkiss, and Randy J. Nelson - Small mammals use day length to adjust morphology and physiology to anticipate seasonal changes in environmental conditions. The canonical photoperiod-mediated annual adaptation is seasonal breeding....
Source: Canadian Journal of Zoology - October 3, 2008 Category: Zoology Source Type: journals

Surviving on cached foods  the energetics of egg-caching by arctic foxesemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
V. Careau, J.-F. Giroux, G. Gauthier, and D. Berteaux - Food-caching by arctic foxes (Vulpes lagopus (L., 1758)) is a behavioural adaptation thought to increase winter survival, especially in bird colonies where a large number...
Source: Canadian Journal of Zoology - October 3, 2008 Category: Zoology Source Type: journals

An unexpectedly high degree of specialization and a widespread involvement in sterol metabolism among the C. elegans putative aminophospholipid translocasesemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
Conclusion: tat-5 likely encodes a housekeeping protein that performs the proposed aminophospholipid translocase function routinely. Although individually dispensable, tat-1 through 4 seem to be at most only partly redundant. Expression patterns and the sterol deprivation hypersensitivity deletion phenotype of tat-2 through 4 suggest that these genes carry out subtle metabolic functions, such as fine-tuning sterol metabolism in digestive or steroidogenic tissues. These findings uncover an unexpectedly high degree of specialization and a widespread involvement in sterol metabolism among the genes encoding the putative amino...
Source: BMC Developmental Biology - Latest articles - October 2, 2008 Category: Zoology Authors: Nicholas N Lyssenko, Yana Miteva, Simon Gilroy, Wendy Hanna-Rose and Robert A Schlegel Source Type: journals

Expression of rat uterine serine proteinases homologous to mouse implantation serine proteinase 2.email this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
In this study, the expression of ISP was investigated in the rat uterus. The analysis of two rat genes registered in GenBank, accession nos. XM_220240 and XM_577076, exhibited high identities to the mouse ISP2 genes, respectively at an mRNA level. We labeled the former as rISP2a and the latter as rISP2b. Using RT-PCR, we found that both genes were expressed in the uterus. Specifically, rISP2a mRNA was detected in the uterus throughout pregnancy, whereas rISP2b mRNA was only expressed in the uterus from day 5 of pregnancy until the end of gestation. Expression of both genes was observed specifically within the endometrial g...
Source: Journal of Experimental Zoology. Part B. Molecular and Developmental Evolution - October 2, 2008 Category: Zoology Authors: Oozono S, Yamauchi N, Nishimura K, Matsumoto K, Watanabe R, Kubota K, Aramaki S, Sato F, Wood C, Soh T, Kizaki KI, Hattori MA Tags: J Exp Zoolog B Mol Dev Evol Source Type: journals

Responses of Great Horned Owls (Bubo virginianus), Barred Owls (Strix varia), and Northern Saw-whet Owls (Aegolius acadicus) to forest cover and configuration in an agricultural landscape in Alberta, Canadaemail this articleEmail this article to a colleague. save this article to My ClippingsSave this article to My Clippings. discuss this articleDiscuss or comment on this article.
S. R. Grossman, S. J. Hannon, and A. Sánchez-Azofeifa - Studies on the effects of forest fragmentation on birds have focussed primarily on passerines, with few studies on owls. We assessed the influence of forest...
Source: Canadian Journal of Zoology - October 1, 2008 Category: Zoology Source Type: journals