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Journal of Animal Science and Biotechnology

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https://www.readbyqxmd.com/read/29760914/gas-stunning-with-co-2-affected-meat-color-lipid-peroxidation-oxidative-stress-and-gene-expression-of-mitogen-activated-protein-kinases-glutathione-s-transferases-and-cu-zn-superoxide-dismutase-in-the-skeletal-muscles-of-broilers
#1
Lei Xu, Haijun Zhang, Hongyuan Yue, Shugeng Wu, Haiming Yang, Zhiyue Wang, Guanghai Qi
Background: Meat color and lipid peroxidation are important traits related to meat quality. CO2 concentration is a critical factor that can affect meat quality in the commercial use of gas stunning (GS). However, the effect and mechanism of CO2 stunning on meat color and lipid peroxidation during long-term storage remain poorly studied. We aimed to study the effects of GS methods, especially CO2 concentration, on meat color and meat lipid peroxidation in broilers during long-term storage at 4 °C and to explore the potential mechanism of meat color change via lipid peroxidation and the inner lipid peroxide scavenging system...
2018: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/29744053/endoplasmic-reticulum-stress-induced-apoptosis-in-intestinal-epithelial-cells-a-feed-back-regulation-by-mechanistic-target-of-rapamycin-complex-1-mtorc1
#2
Yun Ji, Xuan Luo, Ying Yang, Zhaolai Dai, Guoyao Wu, Zhenlong Wu
Background: Endoplasmic reticulum (ER) stress is associated with multiple pathological processes of intestinal diseases. Despite a critical role of mechanistic target of rapamycin complex 1 (mTORC1) in regulating cellular stress response, the crosstalk between mTORC1 and ER stress signaling and its contribution to the intestinal barrier function is unknown. Results: In the present study, we showed that intestinal epithelial cells (IEC-6) incubated with tunicamycin led to caspase-3-dependent apoptotic cell death...
2018: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/29721317/does-intra-ruminal-nitrogen-recycling-waste-valuable-resources-a-review-of-major-players-and-their-manipulation
#3
REVIEW
Thomas Hartinger, Nina Gresner, Karl-Heinz Südekum
Nitrogenous emissions from ruminant livestock production are of increasing public concern and, together with methane, contribute to environmental pollution. The main cause of nitrogen-(N)-containing emissions is the inadequate provision of N to ruminants, leading to an excess of ammonia in the rumen, which is subsequently excreted. Depending on the size and molecular structure, various bacterial, protozoal and fungal species are involved in the ruminal breakdown of nitrogenous compounds (NC). Decelerating ruminal NC degradation by controlling the abundance and activity of proteolytic and deaminating microorganisms, but without reducing cellulolytic processes, is a promising strategy to decrease N emissions along with increasing N utilization by ruminants...
2018: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/29713469/metabolomic-analysis-of-longissimus-from-underperforming-piglets-relative-to-piglets-with-normal-preweaning-growth
#4
Timothy G Ramsay, Margo J Stoll, Amy E Shannon, Le Ann Blomberg
Background: Recent increases in intra-litter variability in weaning weight have raised swine production costs. A contributor to this variability is the normal birth weight pig that grows at a slower rate than littermates of similar birth weight. The goal of this study was to interrogate biochemical profiles manifested in skeletal muscle originating from slow growing (SG) and faster growing littermates (control), with the aim of identifying differences in metabolic pathway utilization between skeletal muscle of the SG pig relative to its littermates...
2018: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/29713468/dietary-resveratrol-improves-antioxidant-status-of-sows-and-piglets-and-regulates-antioxidant-gene-expression-in-placenta-by-keap1-nrf2-pathway-and-sirt1
#5
Qingwei Meng, Tao Guo, Gaoqiang Li, Shishuai Sun, Shiqi He, Baojing Cheng, Baoming Shi, Anshan Shan
Background: Resveratrol, a plant phenol, affords protection against inflammation and oxidative stress. The objective of this study was to investigate the effects of dietary resveratrol supplementation during pregnancy and lactation on the antioxidant status of sows and piglets and on antioxidant gene expression and pathway in placenta. Methods: Forty sows were allotted to 2 dietary treatments 20 d after breeding. Sows were fed a control diet and a control diet with 300 mg/kg resveratrol...
2018: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/29686866/morphological-adaptation-of-sheep-s-rumen-epithelium-to-high-grain-diet-entails-alteration-in-the-expression-of-genes-involved-in-cell-cycle-regulation-cell-proliferation-and-apoptosis
#6
Lei Xu, Yue Wang, Junhua Liu, Weiyun Zhu, Shengyong Mao
Background: The objectives of this study were to characterize changes in the relative mRNA expression of candidate genes and proteins involved in cell cycle regulation, cell proliferation and apoptosis in the ruminal epithelium (RE) of sheep during high-grain (HG) diet adaptation. Results: Twenty sheep were assigned to four groups with five animals each. These animals were assigned to different periods of HG diet (containing 40% forage and 60% concentrate mix) feeding...
2018: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/29644075/regulation-of-amino-acid-transporters-in-the-mammary-gland-from-late-pregnancy-to-peak-lactation-in-the-sow
#7
Fang Chen, Shihai Zhang, Zixiao Deng, Qiqi Zhou, Lin Cheng, Sung Woo Kim, Jun Chen, Wutai Guan
Background: Milk protein is crucial for milk quality in sows and health of newborn piglets. Plasma amino acids (AA) in sows are important precursors for milk protein synthesis in the mammary gland. In order to study the regulation of AA transported in sow mammary glands and possible underlying mechanisms, we measured the expression of genes coding for milk proteins, AA transporter expressions, and plasma AA concentrations in sows at three different physiological stages (D-17, D1 and D17 of lactation), and then further investigated the regulation of AA transport across the cell membrane by adaptive mechanisms using pig mammary epithelial cells (PMEC) as an in vitro model...
2018: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/29644074/acquisition-of-pluripotency-in-the-chick-embryo-occurs-during-intrauterine-embryonic-development-via-a-unique-transcriptional-network
#8
Jae Yong Han, Hyo Gun Lee, Young Hyun Park, Young Sun Hwang, Sang Kyung Kim, Deivendran Rengaraj, Byung Wook Cho, Jeong Mook Lim
Background: Acquisition of pluripotency by transcriptional regulatory factors is an initial developmental event that is required for regulation of cell fate and lineage specification during early embryonic development. The evolutionarily conserved core transcriptional factors regulating the pluripotency network in fishes, amphibians, and mammals have been elucidated. There are also species-specific maternally inherited transcriptional factors and their intricate transcriptional networks important in the acquisition of pluripotency...
2018: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/29632666/isolation-of-bacteria-from-fermented-food-and-grass-carp-intestine-and-their-efficiencies-in-improving-nutrient-value-of-soybean-meal-in-solid-state-fermentation
#9
Samantha Medeiros, Jingjing Xie, Paul W Dyce, Hugh Y Cai, Kees DeLange, Hongfu Zhang, Julang Li
Background: Soybean meal is an excellent and cost-effective protein source; however, its usage is limited in the piglet due to the presence of anti-nutritional factors and the antigens glycinin and β-conglycinin. The objective of the current study was to screen and select for bacteria that can be efficiently adopted to ferment soybean meal in order to solve this problem. Results: Bacteria were isolated from fermented soy foods and the grass carp intestine, and strains selected for high protease, cellulase and amylase activities...
2018: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/29619215/proteomic-analysis-of-adipose-tissue-during-the-last-weeks-of-gestation-in-pure-and-crossbred-large-white-or-meishan-fetuses-gestated-by-sows-of-either-breed
#10
F Gondret, B Guével, M C Père, H Quesnel, Y Billon, E Com, L Canario, I Louveau, L Liaubet
Background: The degree of adipose tissue development at birth may influence neonatal survival and subsequent health outcomes. Despite their lower birth weights, piglets from Meishan sows (a fat breed with excellent maternal ability) have a higher survival rate than piglets from Large White sows (a lean breed). To identify the main pathways involved in subcutaneous adipose tissue maturation during the last month of gestation, we compared the proteome and the expression levels of some genes at d 90 and d 110 of gestation in purebred and crossbred Large White or Meishan fetuses gestated by sows of either breed...
2018: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/29599973/effects-of-lactobacillus-acidophilus-on-the-growth-performance-and-intestinal-health-of-broilers-challenged-with-clostridium-perfringens
#11
Zhui Li, Weiwei Wang, Dan Liu, Yuming Guo
Background: Clostridium perfringens is the main etiological agent of necrotic enteritis. Lactobacilli show beneficial effects on intestinal health in infectious disease, but the protective functions of lactobacilli in C. perfringens -infected chickens are scarcely described. This study examined the effects of Lactobacillus acidophilus ( L. acidophilus ) on the growth performance and intestinal health of broiler chickens challenged with Clostridium perfringens ( C. perfringens ) over a 28-day period...
2018: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/29581880/imputation-from-snp-chip-to-sequence-a-case-study-in-a-chinese-indigenous-chicken-population
#12
Shaopan Ye, Xiaolong Yuan, Xiran Lin, Ning Gao, Yuanyu Luo, Zanmou Chen, Jiaqi Li, Xiquan Zhang, Zhe Zhang
Background: Genome-wide association studies and genomic predictions are thought to be optimized by using whole-genome sequence (WGS) data. However, sequencing thousands of individuals of interest is expensive. Imputation from SNP panels to WGS data is an attractive and less expensive approach to obtain WGS data. The aims of this study were to investigate the accuracy of imputation and to provide insight into the design and execution of genotype imputation. Results: We genotyped 450 chickens with a 600 K SNP array, and sequenced 24 key individuals by whole genome re-sequencing...
2018: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/29568520/effects-of-chronic-dexamethasone-administration-on-hyperglycemia-and-insulin-release-in-goats
#13
Liqiong Niu, Qu Chen, Canfeng Hua, Yali Geng, Liuping Cai, Shiyu Tao, Yingdong Ni, Ruqian Zhao
Background: Dexamethasone (Dex), a synthetic glucocorticoid, is among the most commonly used drugs worldwide in animals and humans as an anti-inflammatory and immunosuppressive agent. GC has profound effects on plasma glucose level and other metabolic conditions. However, the effect of prolonged use of Dex on glucose metabolism in ruminants is still unclear. Results: Ten goats were randomly assigned to two groups: the control goats were injected with saline, and the Dex-treated goats were intramuscularly injected daily for 21 d with 0...
2018: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/29564121/effects-of-dietary-bacillus-amyloliquefaciens-supplementation-on-growth-performance-intestinal-morphology-inflammatory-response-and-microbiota-of-intra-uterine-growth-retarded-weanling-piglets
#14
Yue Li, Hao Zhang, Weipeng Su, Zhixiong Ying, Yueping Chen, Lili Zhang, Zhaoxin Lu, Tian Wang
Background: The focus of recent research has been directed toward the probiotic potential of Bacillus amyloliquefaciens (BA) on the gut health of animals. However, little is known about BA's effects on piglets with intra-uterine growth retardation (IUGR). Therefore, this study investigated the effects of BA supplementation on the growth performance, intestinal morphology, inflammatory response, and microbiota of IUGR piglets. Methods: Eighteen litters of newborn piglets were selected at birth, with one normal birth weight (NBW) and two IUGR piglets in each litter (i...
2018: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/29564120/effects-of-the-dietary-nonfiber-carbohydrate-content-on-lactation-performance-rumen-fermentation-and-nitrogen-utilization-in-mid-lactation-dairy-cows-receiving-corn-stover
#15
Zihai Wei, Baoxin Zhang, Jianxin Liu
Background: Corn stover (CS) is an abundant source of feed for livestock in China. However, it is low in nutritional value that we have been seeking technologies to improve. Previous studies show that non-fiber carbohydrate (NFC) might limit the utilization of a CS diet by lactating dairy cows. Thus, this study was conducted to investigate the lactation performance and rumen fermentation characteristics in lactating cows consuming CS with two contents of NFC compared to an alfalfa hay-containing diet...
2018: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/29560268/maternal-undernutrition-and-offspring-sex-determine-birth-weight-postnatal-development-and-meat-characteristics-in-traditional-swine-breeds
#16
M Vázquez-Gómez, C García-Contreras, L Torres-Rovira, S Astiz, C Óvilo, A González-Bulnes, B Isabel
Background: The aim of this study was to determine how maternal undernutrition during pregnancy and offspring birth-weight can affect the postnatal development of offspring under farm conditions, which may lead to consequences in its meat and carcass quality. The current study involved a total of 80 litters from Iberian sows fed a diet fulfilling daily requirements ( n  = 47; control) or providing 70% daily requirements ( n  = 33; underfed) from d 38 to d 90 of gestation when fetal tissue development begins...
2018: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/29545946/supplementation-of-amylase-combined-with-glucoamylase-or-protease-changes-intestinal-microbiota-diversity-and-benefits-for-broilers-fed-a-diet-of-newly-harvested-corn
#17
Dafei Yin, Xiaonan Yin, Xingyu Wang, Zhao Lei, Maofei Wang, Yuming Guo, Samuel E Aggrey, Wei Nie, Jianmin Yuan
Background: The effect of amylases combined with exogenous carbohydrase and protease in a newly harvested corn diet on starch digestibility, intestine health and cecal microbiota was investigated in broiler chickens. Methods: Two hunderd and eighty-eight 5-day-old female chickens were randomly divided into six treatments: a newly harvested corn-soybean meal diet (control); control supplemented with 1,500 U/g α-amylase (Enzyme A); Enzyme A + 300 U/g amylopectase + 20,000 U/g glucoamylase (Enzyme B); Enzyme B + protease 10,000 U/g (Enzyme C); Enzyme C + xylanase 15,000 U/g (Enzyme D); and Enzyme D + cellulase 200 U/g + pectinase 1,000 U/g (Enzyme E)...
2018: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/29527304/metabolomics-characterization-of-colostrum-in-three-sow-breeds-and-its-influences-on-piglets-survival-and-litter-growth-rates
#18
Gianfranco Picone, Martina Zappaterra, Diana Luise, Alessia Trimigno, Francesco Capozzi, Vincenzo Motta, Roberta Davoli, Leonardo Nanni Costa, Paolo Bosi, Paolo Trevisi
Background: Colostrum is the first secretion produced by mammary glands during the hours immediately preceding and succeeding parturition. This secretion differs from milk and represents an essential vehicle of passive immunity, prebiotic compounds and growth factors involved in intestinal development. Most of the literature concerning colostrum composition refers mainly to human and cow; and little is known about pig colostrum metabolome and how it varies between pig breeds and different farrowing parity...
2018: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/29449940/effects-of-fumaric-acid-supplementation-on-methane-production-and-rumen-fermentation-in-goats-fed-diets-varying-in-forage-and-concentrate-particle-size
#19
Zongjun Li, Nannan Liu, Yangchun Cao, Chunjia Jin, Fei Li, Chuanjiang Cai, Junhu Yao
Background: In rumen fermentation, fumaric acid (FA) could competitively utilize hydrogen with methanogenesis to enhance propionate production and suppress methane emission, but both effects were diet-dependent. This study aimed to explore the effects of FA supplementation on methanogenesis and rumen fermentation in goats fed diets varying in forage and concentrate particle size. Methods: Four rumen-cannulated goats were used in a 4 × 4 Latin square design with a 2 × 2 factorial arrangement of treatments: low or high ratio of forage particle size: concentrate particle size (Fps:Cps), without or with FA supplementation (24 g/d)...
2018: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/29449939/innovative-approaches-to-genome-editing-in-avian-species
#20
REVIEW
Caitlin A Cooper, Timothy J Doran, Arjun Challagulla, Mark L V Tizard, Kristie A Jenkins
The tools available for genome engineering have significantly improved over the last 5 years, allowing scientist to make precise edits to the genome. Along with the development of these new genome editing tools has come advancements in technologies used to deliver them. In mammals genome engineering tools are typically delivered into in vitro fertilized single cell embryos which are subsequently cultured and then implanted into a recipient animal. In avian species this is not possible, so other methods have been developed for genome engineering in birds...
2018: Journal of Animal Science and Biotechnology
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