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Animal Science Journal, Nihon Chikusan Gakkaihō

Chao Wang, Jia-Lian Li, Hong-Kui Wei, Yuan-Fei Zhou, Jia-Jian Tan, Hai-Qing Sun, Si-Wen Jiang, Jian Peng
This study aimed to investigate the factors affecting boar claw lesions and lameness. A total of 1299 boars were examined for claw lesions and lameness, including 788 boars reared in individual pens with solid concreted floor (IPS) and 511 boars raised in individual stalls with slatted floor (ISS). Flooring type showed significant impacts on all claw lesion types (P < 0.01). Except for swelling ankle, boar age had significant effects on all other claw lesion types (P < 0.01). In addition, only heel overgrowth and erosion, cracked wall horizontal, heel-sole crack, dew claws, and toes were significantly related to boar breeds (P < 0...
February 6, 2018: Animal Science Journal, Nihon Chikusan Gakkaihō
Ze-Xue Liu, Hong-Kui Wei, Yuan-Fei Zhou, Jian Peng
This study investigated the factors affecting piglet mortality (square root of mortality, SQRM) and average weaning weight (AWW) in commercial farms in central China. Information on sow diets, management and climate from 2478 weaning batches completed in 16 pig farms was collected from 2009 to 2013. Multi-level mixed models, which included batch level (level 1) and farm level (level 2), were used to analyze the factors associated with SQRM and AWW. The mean values of SQRM and AWW were 2.52% (SD = 0.96) and 7...
February 4, 2018: Animal Science Journal, Nihon Chikusan Gakkaihō
Iwona Głażewska, Barbara Gralak, Aleksandra M Naczk, Beata Prusak
Polish Arabian horses are one of the most important populations of this breed in the world. Their post-war history can be divided into two periods, with the dominant role of state studs until 1989, and the increasing significance of private breeding in the next years. The goal of the study was to evaluate genetic diversity and structure of the population under a new breeding policy. The analyses of breeding and microsatellite data from 1996 to 2012 provide a coherent picture of the population with constant flow of horses only in one direction from state to private studs...
February 2, 2018: Animal Science Journal, Nihon Chikusan Gakkaihō
Irina M Chernukha, Liliya V Fedulova, Elena A Kotenkova, Shiro Takeda, Ryoichi Sakata
The aim of this study was to investigate the effects of aorta and heart tissues obtained from cattle and pigs on atherosclerosis disorders. Atherosclerosis model rats were provided with the respective diets consisting of aorta and heart tissues. Administration of each tissue suppressed body weight gain as compared to that of the control. In particular, the aorta tissues of pigs and cattle demonstrated significant suppressions in body weight gain in the model rats. The aorta tissues of pigs and cattle showed a significant increase and decrease in the serum high-density lipoproteins and atherogenic index, respectively, which was correlated with the increase in apolipoprotein A1...
February 1, 2018: Animal Science Journal, Nihon Chikusan Gakkaihō
Ayaka Nakajima, Fuki Kawaguchi, Yoshinobu Uemoto, Moriyuki Fukushima, Emi Yoshida, Eiji Iwamoto, Takayuki Akiyama, Namiko Kohama, Eiji Kobayashi, Takeshi Honda, Kenji Oyama, Hideyuki Mannen, Shinji Sasazaki
The objective of this study was to identify genomic regions associated with fat-related traits using a Japanese Black cattle population in Hyogo. From 1836 animals, those with high or low values were selected on the basis of corrected phenotype and then pooled into high and low groups (n = 100 each), respectively. DNA pool-based genome-wide association study (GWAS) was performed using Illumina BovineSNP50 BeadChip v2 with three replicate assays for each pooled sample. GWAS detected that two single nucleotide polymorphisms (SNPs) on BTA7 (ARS-BFGL-NGS-35463 and Hapmap23838-BTA-163815) and one SNP on BTA12 (ARS-BFGL-NGS-2915) significantly affected fat percentage (FAR)...
January 30, 2018: Animal Science Journal, Nihon Chikusan Gakkaihō
Yuying Zhu, Jianmin Wang, Cunfang Wang
Taking fresh goat milk as raw material after filtering, centrifuging, hollow fiber ultrafiltration, allocating formula, value detection and preparation processing, a set of 10 goat milk mixed standard substances was prepared on the basis of one-factor-at-a-time using a uniform design method, and its accuracy, uniformity and stability were evaluated by paired t-test and F-test of one-way analysis of variance. The results showed that three milk composition contents of these standard products were independent of each other, and the preparation using the quasi-level design method, and without emulsifier was the best program...
January 19, 2018: Animal Science Journal, Nihon Chikusan Gakkaihō
Madoka Sutoh, Etsuko Kasuya, Ken-Ichi Yayou
This study was conducted to investigate the effect of tryptophan (TRP) supply on the thermoregulatory responses via brain serotonin (5-HT) in cattle. In period 1, 12 Holstein steers were kept under a constant room temperature (22°C) and were administered the intravenous (i.v.) infusion of saline or TRP (38.5 mg/kg/2 h). Changes in rectal temperature (RT), 5-HT concentration in the cerebrospinal fluid (CSF), and other factors involved in thermoregulation were measured. In period 2, the steers received the same treatments as in period 1; however, the room temperature was elevated from 22°C to 33°C during i...
January 19, 2018: Animal Science Journal, Nihon Chikusan Gakkaihō
Zhi Zhu, Zhen-Hui Song, Li-Ting Cao, Yong Wang, Wen-Zhang Zhou, Pei Zhou, Fu-Yuan Zuo
This study was conducted to evaluate effects of traditional Chinese medicine formula (TCMF) combined with several herbs on ruminal fermentation, enzyme activities and nutrient digestibility. Twenty finishing bulls were assigned to control or different TCMFs (Yufeisan-1, -2, -3; 2.5% dry matter (DM) in concentrate). Results showed that DM intake was higher (P < 0.05) in the Yufeisan-3 group than others. Compared to control, apparent digestibility of crude protein and neutral detergent fiber were increased (P < 0...
January 12, 2018: Animal Science Journal, Nihon Chikusan Gakkaihō
Guang-Min Yu, Yue Wu, Xian-Long Wang, Shuan Zhao, Teruo Maeda, Shen-Ming Zeng
When European Union regulations restricted the use of estrogenic compounds in food-producing animals, refined hormonal protocols were no longer applicable for anovulatory cows. However, Ovsynch and its adaptations are routinely and uniformly applied to all cows regardless of ovarian function. To evaluate their efficacy on anovulatory cows, 143, 147 and 144 anovulatory cows received Ovsynch, Presynch and G6G protocols, respectively. In comparison, 150 cyclic cows were bred without using a synchronized protocol...
January 9, 2018: Animal Science Journal, Nihon Chikusan Gakkaihō
Cheng Zhang, Richard-Hermann Ah Kan Razafindrabe, Kaikai Chen, Xiaohui Zhao, Lei Yang, Li Wang, Xingyong Chen, Sihua Jin, Zhaoyu Geng
This study was conducted using a total of 360 22-day-old Chaohu ducks to evaluate the effect of rearing system on growth performance, carcass traits, meat quality and serum parameters of male and female Chaohu ducks. The birds were divided and raised in separate pens according to sex and rearing system, with three replicate pens of 30 male or 30 female ducks per pen for each rearing system. The rearing systems consisted of a floor rearing system (FRS) and a net rearing system (NRS). Results showed that ducks raised in NRS had better growth performance, whereas, ducks raised in FRS exhibited better carcass traits and meat color, and lower intramuscular fat...
January 9, 2018: Animal Science Journal, Nihon Chikusan Gakkaihō
Joanna Składanowska-Baryza, Agnieszka Ludwiczak, Ewa Pruszyńska-Oszmałek, Paweł Kołodziejski, Marta Bykowska, Marek Stanisz
The analyzed material included 40 hybrid rabbits slaughtered at the age of 90 days. The control group was transported directly after weaning, while the transport group was transported directly prior to slaughter. The experiment was designed to assess the transport stress, carcass and meat quality implications, taking into account the muscle type and sex. The transported animals were characterized by a higher level of blood cortisol, glucose and triglycerides (P < 0.0001), and a lower level of insulin (P < 0...
January 8, 2018: Animal Science Journal, Nihon Chikusan Gakkaihō
Jin-Feng Zhong, Wei-Gao Wu, Aseyinjan Tastan, Xiao-Qing Zhang, Bin Wang, Xiao-Peng Tang, Re-Jun Fang
Inactivated mycobacterium phlei (M. phlei) is well known for its immune-stimulatory functions in humans and livestock, but less information is available about the influence on meat quality of pigs when used as a feed additive. This study was designed to evaluate the effects of inactivated M. phlei on growth performance as well as meat quality of fattening pigs. A total of 240 cross-bred pigs ([Landrace × Yorkshire] × Duroc) with initial body weight of 80.14 ± 0.29 kg were randomly allocated to five treatments, each of which consisted of eight replicates with 6six pigs per replicate...
January 3, 2018: Animal Science Journal, Nihon Chikusan Gakkaihō
Tatsuyuki Yoshida, Yoshiyuki Ohta
The experiment was conducted to estimate dietary threonine (Thr) requirement using plasma amino acid concentrations as a criterion in mature thoroughbreds. Four adult thoroughbreds were used, and a 4 × 4 Latin square design was used for four dietary Thr levels. Plasma Thr concentration was constant until 0.41%, and then increased rapidly with increasing dietary Thr levels. The Thr requirement was estimated to be 67% of lysine with plasma Thr concentration at four Thr levels.
December 28, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
Meihong Shi, Jianyong Cheng, Yamei He, Zhongliang Jiang, Bello M Bodinga, Boyang Liu, Huali Chen, Qingwang Li
Wingless-int (WNT) signaling pathway is vital to modulate life processes, including cell fate determination, cell differentiation, cell proliferation, cell apoptosis and embryogenesis. To demonstrate the uncertain effect of the canonical WNT signaling pathway on oocyte maturation, immature porcine oocytes were collected and cultured in vitro with the WNT/β-catenin inhibitor FH535. The concentrations of FH535 were selected as 0.00, 0.01, 0.10, 1.00 and 10.00 μmol/L. The results showed that the optimum concentration of FH535 on oocyte maturation was 1...
December 28, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
Takamitsu Tsukahara, Ryo Inoue, Keizo Nakayama, Takio Inatomi
Coccidiosis is an intestinal parasitic infection and one of the most prevalent and economically damaging diseases of chickens. Furthermore, coccidia-induced mucogenesis promotes secondary colonization by Clostridium perfringens, a major pathogen of chickens that causes necrotic enteritis. Our previous work found that supernatant of a culture of Bacillus amyloliquefaciens strain TOA5001 (BA) inhibited the growth of C. perfringens on Gifu anaerobic broth medium. Accordingly, we evaluated the effectiveness of dietary BA administration in inhibiting C...
December 28, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
Jeehwan Choe, Sheena Kim, Jin Ho Cho, Jeong Jae Lee, Sangwoo Park, Byeonghyeon Kim, Junsu Kim, Samuel K Baidoo, Sangnam Oh, Hyeun Bum Kim, Minho Song
This study evaluated the effects of different gestation housing types on reproductive performance of sows. A total of 60 sows (218 ± 24 kg body weight) with mixed parity were used. During gestation, 28 sows were housed in groups with electronic sow feeders (space allowance = 1.26 m2 /sow) and 32 sows were housed in individual stalls (space allowance = 1.20 m2 /sow). Sows from both housing types were moved to farrowing crates on day 109 of gestation and stayed until weaning (18 days post-farrowing)...
December 28, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
Amir Hossan Shaikat, Shoko Namekawa, Sadequllah Ahmadi, Misa Takeda, Takeshi Ohkubo
The reproductive system in female birds arises as bilateral asymmetrical anlagen, excluding the birds of prey. Earlier, histological and messenger RNA (mRNA) expression profile studies of several genes related to gonadal sex differentiation in chicken embryos tried to elucidate the query of this asymmetry in a scattered manner. To understand the matter precisely, we have focused on mRNA expression of a cohort of genes (FSHR, CYP19A1, caspase 3, caspase 8) in second half of the embryonic days (E10-E18). The established role of leptin in development of the embryo and its expression in the embryonic ovary also drove us to check leptin receptor (LEPR) expression in the ovary...
December 28, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
Fen Zhou, Hui Dong, Jun-Hua Shao, Jun-Long Zhang, Deng-Yong Liu
The effect of chopping time and heating on physicochemical properties of meat batters was investigated by low-field nuclear magnetic resonance and rheology technology. Cooking loss and L* increased while texture profile analysis index decreased between chopping 5 and 6 min. The relaxation time T21 (bound water) and its peak area ratio decreased, while the ratio of T22 peak area (immobilized water) in raw meat batters gradually increased with the extension of chopping time. However, T22 was opposite after being heated and a new component T23 (free water) appeared (T2i is the spin - spin relaxation time for the ith component...
December 27, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
Eiryu Okamoto, Hiroki Miyanishi, Akinobu Nakamura, Tomoyuki Kobayashi, Norihiko Kobayashi, Yoshinori Terawaki, Hajime Nagahata
Changes in mastitis-causing pathogens, pH and water content in composted manure solids (CMS) prepared from digested slurry were evaluated during turning at 2-day intervals for 8 days (C1-C4). The numbers of streptococci, coagulase-negative staphylococci and coliforms were 2.6 × 101 , 1.7 × 102 and 1.0 × 101  colony-forming units (cfu)/g in CMS (C4) (summer), and these counts were markedly lower (P < 0.05) than those in CMS (C0 and C1). The bacterial counts ranged from 101 to 1.7 × 102  cfu/g in CMS (C4) (summer) and were within approved levels, <1 × 106  cfu/g, indicating a minimal mastitis risk...
December 27, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
Yunwei Pang, Shanjiang Zhao, Yeqing Sun, Xiaolong Jiang, Haisheng Hao, Weihua Du, Huabin Zhu
The present study investigated the effects of melatonin on bovine oocyte maturation and subsequent embryonic development in vitro. Results showed that the nuclear and cytoplasmic maturation, characterized by first polar body extrusion, normal distribution of cortical granules and mitochondria, as well as increased mitochondrial membrane potential, were significantly improved in 10-9  mol/L melatonin-treated oocytes. Melatonin supplementation reduced intracellular reactive oxygen species level and enhanced glutathione production...
December 27, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
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