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Animal Science Journal, Nihon Chikusan Gakkaihō

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https://www.readbyqxmd.com/read/28804986/effects-of-hydroxycitric-acid-on-lipid-droplet-accumulation-in-chicken-embryos
#1
Mengling Peng, Longlong Li, Lei Yu, Chongyang Ge, Haitian Ma
This study was conducted to determine the impact of (-)-hydroxycitric acid ((-)-HCA) on biochemical indices and lipid metabolism parameters in chicken embryos. Two hundred and forty fertilized eggs were divided into six groups and injected with (-)-HCA at concentrations of 0, 0.1, 0.5, 1.0, 10.0 and 50 mg/kg (n = 40). After 19 days of incubation, serum and liver were collected for analysis of biochemical indices and lipid metabolism parameters. Results showed no significant differences on serum biochemical indices: 1-50 mg/kg (-)-HCA significantly increased serum glucose and hepatic glycogen contents (P < 0...
August 14, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28804941/proteomic-analysis-to-unravel-the-effect-of-heat-stress-on-gene-expression-and-milk-synthesis-in-bovine-mammary-epithelial-cells
#2
Lian Li, Yiru Wang, Chengmin Li, Genlin Wang
Heat stress can play a negative effect on milk yield and composition of dairy cattle, leading to immeasurable economic loss. The basic components of the mammary gland are the alveoli; these alveolar mammary epithelial cells reflect the milk producing ability of dairy cows. In this study, we exposed bovine mammary epithelial cells to heat stress and compared them to a control group using isobaric tags for relative and absolute quantitation combined with liquid chromatography coupled with tandem mass spectrometry...
August 14, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28799183/utilization-of-porcine-in%C3%A2-vitro-produced-parthenogenetic-embryos-for-co-transfer-with-vitrified-and-warmed-embryos
#3
Yoshiyuki Nakamura, Kazuhiro Kikuchi
The present study was conducted to evaluate the possibility of using in vitro-produced parthenogenetic (PA) embryos for co-transfer with morulae that had been collected in vivo and cryopreserved. The proportion of PA blastocysts (20.5%) was higher than that of their in vitro fertilization (IVF) counterparts (16.6%). Although there were no differences in morphology or diameter between the two groups, the number of cells in early PA blastocysts after in vitro culture for 6 days was lower than for IVF blastocysts (25...
August 10, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28799182/questionnaire-investigation-to-clarify-the-occurrence-rate-and-characteristics-of-maternal-rejection-behavior-in-japanese-black-cattle-bos-taurus
#4
Daisuke Kohari, Azusa Takakura
We conducted a questionnaire investigation among breeding farmers to clarify the actual conditions of maternal rejection in Japanese Black cattle. We asked keeping experience of maternal rejective cows and compared occurrence patterns, rejective behavior manners, birth assistance methods, colostrum feeding method for calves, parity and rearing conditions of the cows. We found that 24% of the farms had kept rejective cows and 6% of the cows in these farms indicated maternal rejections. The most common occurrence pattern was 'Occurred from the first birth (65...
August 10, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28782242/effects-of-hyper-and-hypothyroidism-on-the-development-and-proliferation-of-testicular-cells-in-prepubertal-rats
#5
Mohamed Babo Fadlalla, Quanwei Wei, Jaafar Sulieman Fedail, Asif Mehfooz, Dagan Mao, Fangxiong Shi
Thyroid hormones are important in the development and regulation of testes. This study was conducted to determine the effects of hyper- and hypothyroidism on testicular development in prepubertal rats aged 20-70 days. Weaning male rats (20 days old) until day 70 age were randomly divided into four groups: control, hyperthyroid (hyper-T), hypothyroid (hypo-T) and hypothyroid treated with thyroxine (T4) (hypo-T+T4). The results indicated that thyroid hormones caused a significant effect in body and testis weights, and food and water consumption...
August 7, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28782148/autonomous-xenogenic-cell-fusion-of-murine-and-chick-skeletal-muscle-myoblasts
#6
Tomohide Takaya, Yuma Nihashi, Shotaro Kojima, Tamao Ono, Hiroshi Kagami
Cell-cell fusion has been a great technology to generate valuable hybrid cells and organisms such as hybridomas. In this study, skeletal muscle myoblasts were utilized to establish a novel method for autonomous xenogenic cell fusion. Myoblasts are mononuclear myogenic precursor cells and fuse mutually to form multinuclear myotubes. We generated murine myoblasts (mMBs) expressing green fluorescent protein (GFP) termed mMB-GFP, and the chick myoblasts (chMBs) expressing Discosoma red fluorescent protein (DsRed) termed chMB-DsRed...
August 7, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28776913/dietary-methionine-source-and-level-affect-hepatic-sulfur-amino-acid-metabolism-of-broiler-breeder-hens
#7
Jianmei Wan, Xuemei Ding, Jianping Wang, Shiping Bai, Huanwei Peng, Yuheng Luo, Zhuowei Su, Yue Xuan, Keying Zhang
A study was carried out to investigate the effects of dietary methionine source and level on plasma free amino acids patterns and the expression of genes involved in hepatic methionine metabolism in broiler breeders. A total of 2184 broiler breeders were assigned to 13 dietary treatments, with eight replicates per treatment. The 13 treatments included one control group and 12 additional treatments employing two sources and six levels (0.05, 0.10, 0.15, 0.20, 0.25 and 1.00%). Higher plasma methionine concentration was measured for DL-methionine (DLM) treated hens...
August 4, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28776900/pathological-findings-of-japanese-black-cattle-living-in-the-restricted-area-of-the-fukushima-daiichi-nuclear-power-plant-accident-2013-2016
#8
Jun Sasaki, Kayoko Hiratani, Itaru Sato, Hiroshi Satoh, Yoshitaka Deguchi, Hiroyuki Chida, Masahiro Natsuhori, Takahisa Murata, Kenji Ochiai, Kumiko Otani, Keiji Okada, Nobuhiko Ito
Fifty-one Japanese black cattle from four farms in the evacuation zone of the Fukushima nuclear accident were examined pathologically during the period, 2013-2016. We found no evidence of a radiation effect on pathological findings in any of these autopsy cases, although nine cases (3.7%) of enzootic bovine leukosis (EBL) and three cases (1.2%) of goiter were diagnosed. Estimated integrating dose of external exposure in EBL cases ranged from a maximum of 1200 mSv to a minimum of 72 mSv. Clinically, five cases showed wobble, dysstasia or paralysis...
August 4, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28776879/effects-of-increased-vertebral-number-on-carcass-weight-in-pic-pigs
#9
Jieping Huang, Mingming Zhang, Runqing Ye, Yun Ma, Chuzhao Lei
Variation of the vertebral number is associated with carcass traits in pigs. However, results from different populations do not match well with others, especially for carcass weight. Therefore, effects of increased vertebral number on carcass weight were investigated by analyzing the relationship between two loci multi-vertebra causal loci (NR6A1 g.748 C > T and VRTN g.20311_20312ins291) and carcass weight in PIC pigs. Results from the association study between vertebral number and carcass weight showed that increased thoracic number had negative effects on carcass weight, but the results were not statistically significant...
August 4, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28776878/a-method-for-estimating-radioactive-cesium-concentrations-in-cattle-blood-using-urine-samples
#10
Itaru Sato, Ryoma Yamagishi, Jun Sasaki, Hiroshi Satoh, Kiyoshi Miura, Kaoru Kikuchi, Kumiko Otani, Keiji Okada
In the region contaminated by the Fukushima nuclear accident, radioactive contamination of live cattle should be checked before slaughter. In this study, we establish a precise method for estimating radioactive cesium concentrations in cattle blood using urine samples. Blood and urine samples were collected from a total of 71 cattle on two farms in the 'difficult-to-return zone'. Urine (137) Cs, specific gravity, electrical conductivity, pH, sodium, potassium, calcium, and creatinine were measured and various estimation methods for blood (137) Cs were tested...
August 4, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28776872/changes-in-some-blood-parameters-milk-composition-and-yield-of-buffaloes-bubalus-bubalis-during-the-transition-period
#11
Enrico Fiore, Sonia Giambelluca, Massimo Morgante, Barbara Contiero, Elisa Mazzotta, Domenico Vecchio, Irene Vazzana, Pasquale Rossi, Francesca Arfuso, Giuseppe Piccione, Matteo Gianesella
In this study changes in hematochemical parameters, milk composition and yield were investigated in buffaloes during the transition period. A total of 93 buffaloes 113.9 ± 8.03 months old and 535 ± 50 kg average body weight were used. Parity was recorded, blood samples were collected from 80 days pre-partum until 70 days post-partum; milk samples were collected from 5 days to 70 days post-partum. On serum samples, the values of non-esterified fatty acids, β-hydroxybutyrate, glucose, cholesterol, triglycerides, aspartate aminotransferase, alanine aminotransferase, gamma-glutamyltransferase, urea, total proteins were evaluated...
August 4, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28776828/the-quality-after-culture-in%C3%A2-vitro-or-in%C3%A2-vivo-of-porcine-oocytes-matured-and-fertilized-in%C3%A2-vitro-and-their-ability-to-develop-to-term
#12
Yoshiyuki Nakamura, Sigeyuki Tajima, Kazuhiro Kikuchi
The quality of porcine blastocysts produced in vitro is poor in comparison with those that develop in vivo. We examined the quality of in vitro-matured and fertilized (IVM/IVF) oocytes, their abilities to develop to blastocysts under in vivo and in vitro conditions, and the potential of the embryos to develop to term after transfer. IVM/IVF oocytes were either transferred and the embryos recovered on Days 5 and 6 (100% and 87.5%, respectively) ('ET-vivo' embryos), or cultured in vitro for 5 or 6 days ('IVC' embryos)...
August 4, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28752557/retort-beef-aroma-that-gives-preferable-properties-to-canned-beef-products-and-its-aroma-components
#13
Koshiro Migita, Takao Iiduka, Kie Tsukamoto, Sayuri Sugiura, Genichiro Tanaka, Gousuke Sakamaki, Yasufumi Yamamoto, Yusuke Takeshige, Toshio Miyazawa, Ayako Kojima, Tomoko Nakatake, Akihiro Okitani, Masanori Matsuishi
The objective of this study is to identify the properties and responsible compounds for the aromatic roast odor (retort beef aroma) that commonly occurs in canned beef products and could contribute to their palatability. The optimal temperature for generating retort beef aroma was 121°C. An untrained panel evaluated both uncured corned beef and canned yamato-ni beef and found that they had an aroma that was significantly (P < 0.01) similar to the odor of 121°C-heated beef than 100°C-heated beef. The panel also noted that the aroma of 121°C-heated beef tended to be (P < 0...
July 28, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28749043/transcriptome-profiling-reveals-the-immune-response-of-goose-t-cells-under-selenium-stimuli
#14
Nan Cao, Wanyan Li, Bingxin Li, Yunbo Tian, Danning Xu
The goose is an economically important poultry species and a principal natural host of avian viruses. This study aimed to determine the effects of selenium on the immune response of geese. Under selenium stimulation, gene expression profiling was investigated using transcriptome sequencing. The selenoproteins were promoted by selenium stimulation, while the heat shock proteins, interleukin and interferons were mainly down-regulated. After comparison, 2228 differentially expressed genes were primarily involved in immune and environmental response, and infectious disease and genetic information processing related pathways were identified...
July 27, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28748670/whole-genome-detection-of-signature-of-positive-selection-in-african-cattle-reveals-selection-for-thermotolerance
#15
Mengistie Taye, Wonseok Lee, Kelsey Caetano-Anolles, Tadelle Dessie, Olivier Hanotte, Okeyo Ally Mwai, Stephen Kemp, Seoae Cho, Sung Jong Oh, Hak-Kyo Lee, Heebal Kim
As African indigenous cattle evolved in a hot tropical climate, they have developed an inherent thermotolerance; survival mechanisms include a light-colored and shiny coat, increased sweating, and cellular and molecular mechanisms to cope with high environmental temperature. Here, we report the positive selection signature of genes in African cattle breeds which contribute for their heat tolerance mechanisms. We compared the genomes of five indigenous African cattle breeds with the genomes of four commercial cattle breeds using cross-population composite likelihood ratio (XP-CLR) and cross-population extended haplotype homozygosity (XP-EHH) statistical methods...
July 27, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28748628/reproductive-phenology-of-creole-horses-in-ecuador-in-the-absence-of-photoperiod-variation-the-effects-of-forage-availability-and-flooding-affecting-body-condition-of-mares
#16
Juan Carranza, Washington A Yoong, Concha Mateos, Belén Caño Vergara, Chian L Gómez, Verónica Macías
Horse reproduction tends to be seasonal. The main adjusting factor in their original temperate ranges is photoperiod variation, although it is absent in equatorial areas where horses were introduced by European colonizers. Hence, dates of reproduction in these areas may be influenced by factors affecting mares' conditions and the success of foaling. Here we study reproductive timing in Creole horses in Ecuador reared in an extensive production system. We found that foaling peaked in August. Mares' conditions showed one peak in June-July, before the start of the breeding season, and another in December, and it was highly variable along the year...
July 27, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28741730/fermentation-quality-and-nutritive-value-of-total-mixed-ration-silages-based-on-desert-wormwood-artemisia-desertorum-spreng-combining-with-early-stage-corn
#17
Guomei Yin, Chunsheng Bai, Juanjuan Sun, Lin Sun, Yanlin Xue, Yuanyuan Zhang, Heping Zhao, Zhu Yu, Sibo Liu, Kewei Zhang
This study aimed to investigate the fermentation quality and nutritive value of total mixed ration (TMR) silages based on desert wormwood (DW) combined with early stage corn (ESC) as forage and determine an optimum formula. Desert wormwood and ESC were harvested, chopped, and mixed with other ingredients according to a formula, packed into laboratory silos at densities of 500-550 g/L, and stored in the dark for 60 days. The DW proportions in the forage of TMR were 1, 0.75, 0.50, 0.25 and 0, based on fresh weight...
July 25, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28730715/different-thermotolerances-in-in%C3%A2-vitro-produced-embryos-derived-from-different-maternal-and-paternal-genetic-backgrounds
#18
Miki Sakatani, Kenichi Yamanaka, Ahmed Zaky Balboula, Masashi Takahashi
The present study evaluated the effects of genetic backgrounds on the developmental competence and thermotolerance of bovine in vitro-produced (IVP) embryos. First, Holstein (Hol) and Japanese Black (JB) oocytes were fertilized with sperm from Hol, JB and a thermotolerant breed (Brahman), and in vitro development was evaluated when the embryos were exposed to heat shock on Day 2 (Day 0 = day of fertilization). Sperm genetic backgrounds affected the developmental competence in controls (P < 0.05). Second, the effect of sperm pre-incubation for 4 h on subsequent in vitro fertilization was assessed using different sperm genetic backgrounds...
July 21, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28730713/investigation-of-genetic-diversity-and-inbreeding-in-a-japanese-native-horse-breed-for-suggestions-on-its-conservation
#19
Akio Onogi, Kouichi Shirai, Tomoko Amano
Because native breeds can serve as genetic resources for adapting to environment changes, their conservation is important for future agroecosystems. Using pedigree analysis, we investigated genetic diversity and inbreeding in Japanese Hokkaido native horses, which have adapted to a cold climate and roughage diet. Genetic diversity was measured as the number of founders and the effective number of founders, ancestors and genomes. All metrics imply a decrease in genetic diversity. A comparison of these metrics suggested that pedigree bottlenecks contributed more than did random gene losses to the reduction of genetic diversity...
July 21, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28730693/fiber-characteristics-of-pork-muscle-exhibiting-different-levels-of-drip-loss
#20
Nunyarat Koomkrong, Nirat Gongruttananun, Chaiwat Boonkaewwan, Jatuporn Noosud, Sirin Theerawatanasirikul, Autchara Kayan
The present study aimed to investigate the fiber characteristics of pork muscle exhibiting different levels of drip loss during storage. The samples were taken from Longissimus dorsi muscle to evaluate drip loss (n = 100). Fifteen muscles per group (low and high drip loss) were selected to evaluate the histological characteristics at 0 and 72 h of storage time. The statistical analysis revealed that a high drip loss group had greater endomysium thickness than a low drip loss group at 0 h of storage time (P < 0...
July 21, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
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