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Journal of Animal Science and Biotechnology

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https://www.readbyqxmd.com/read/28630707/evidence-of-endometrial-amino-acid-metabolism-and-transport-modulation-by-peri-ovulatory-endocrine-profiles-driving-uterine-receptivity
#1
Moana Rodrigues França, Maressa Izabel Santos da Silva, Guilherme Pugliesi, Veerle Van Hoeck, Mario Binelli
BACKGROUND: In beef cattle, changes in the periovulatory endocrine milieu are associated with fertility and conceptus growth. A large preovulatory follicle (POF) and the resulting elevated concentrations of progesterone (P4) during diestrus positively affect pregnancy rates. Amino acids (AA) are important components of maternally derived secretions that are crucial for embryonic survival before implantation. The hypothesis is that the size of the POF and the concentration of P4 in early diestrus modulate the endometrial abundance of SLC transcripts related to AA transport and metabolism and subsequently impact luminal concentrations of AA...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/28630706/effects-of-feeding-untreated-pasteurized-and-acidified-waste-milk-and-bunk-tank-milk-on-the-performance-serum-metabolic-profiles-immunity-and-intestinal-development-in-holstein-calves
#2
Yang Zou, Yajing Wang, Youfei Deng, Zhijun Cao, Shengli Li, Jiufeng Wang
BACKGROUND: The present experiment was performed to assess the effects of different sources of milk on the growth performance, serum metabolism, immunity, and intestinal development of calves. Eighty-four Holstein male neonatal calves were assigned to one of the following four treatment groups: those that received bunk tank milk (BTM), untreated waste milk (UWM), pasteurized waste milk (PWM), and acidified waste milk (AWM) for 21 d. RESULTS: Calves in the BTM and AWM groups consumed more starter (P < 0...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/28616225/effect-of-three-lactobacilli-with-strain-specific-activities-on-the-growth-performance-faecal-microbiota-and-ileum-mucosa-proteomics-of-piglets
#3
Yating Su, Xingjie Chen, Ming Liu, Xiaohua Guo
BACKGROUND: The beneficial effects of Lactobacillus probiotics in animal production are often strain-related. Different strains from the same species may exert different weight-gain effect on hosts in vivo. Most lactobacilli are selected based on their in vitro activities, and their metabolism and regulation on the intestine based on strain-related characters are largely unexplored. The objective of the present study was to study the in vivo effects of the three lactobacilli on growth performance and to compare the differential effects of the strains on the faecal microbiota and ileum mucosa proteomics of piglets...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/28603614/nutritional-value-of-a-partially-defatted-and-a-highly-defatted-black-soldier-fly-larvae-hermetia-illucens-l-meal-for-broiler-chickens-apparent-nutrient-digestibility-apparent-metabolizable-energy-and-apparent-ileal-amino-acid-digestibility
#4
Achille Schiavone, Michele De Marco, Silvia Martínez, Sihem Dabbou, Manuela Renna, Josefa Madrid, Fuensanta Hernandez, Luca Rotolo, Pierluca Costa, Francesco Gai, Laura Gasco
BACKGROUND: The study aimed to determine the apparent total tract digestibility coefficients (ATTDC) of nutrients, the apparent metabolizable energy (AME and AMEn) and the amino acid (AA) apparent ileal digestibility coefficients (AIDC) of a partially defatted (BSFp) and a highly defatted (BSFh) black soldier fly larvae meal. The experimental diets were: a basal diet and two diets prepared by substituting 250 g/kg (w/w) of the basal diet with BSFp or BSFh, respectively. RESULTS: Significant differences were found between BSFp and BSFh meals for ATTDC of the nutrients: BSFp resulted more digestible than BSFh, except for ATTDC of CP which did not differed between meals, while a statistical trend was observed for ATTDC of DM and EE...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/28603613/solid-state-fermentation-of-corn-soybean-meal-mixed-feed-with-bacillus-subtilis-and-enterococcus-faecium-for-degrading-antinutritional-factors-and-enhancing-nutritional-value
#5
Changyou Shi, Yu Zhang, Zeqing Lu, Yizhen Wang
BACKGROUND: Corn and soybean meal (SBM) are two of the most common feed ingredients used in pig feeds. However, a variety of antinutritional factors (ANFs) present in corn and SBM can interfere with the bioavailability of nutrients and have negative health effects on the pigs. In the present study, two-stage fermentation using Bacillus subtilis followed by Enterococcus faecium was carried out to degrade ANFs and improve the nutritional quality of corn and SBM mixed feed. Furthermore, the microbial composition and in vitro nutrient digestibility of inoculated mixed feed were determined and compared those of the uninoculated controls...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/28580140/analysis-of-the-lifetime-and-culling-reasons-for-ai-boars
#6
Damian Knecht, Anna Jankowska-Mąkosa, Kamil Duziński
BACKGROUND: The aim of the study was to analyze the lifetime and culling reasons for boars used in insemination centers (AI centers). METHODS: The data collected from 355 culled boars from 1998 to 2013 included: age at start of semen collection, boar herd life, culling reason, daily gain and lean meat content, and number of ejaculates not meeting sales requirements after dilution. Culling reasons were divided into 7 groups: low semen value (LSV), low or lack of libido (LL), leg problems (LP), infectious diseases (ID), old age (OA), reduced demand for semen from the given boar (RD), and others (OT)...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/28572976/processing-of-ingredients-and-diets-and-effects-on-nutritional-value-for-pigs
#7
REVIEW
Oscar Javier Rojas, Hans Henrik Stein
A conventional diet based on corn and soybean meal fed to pigs is usually provided in a mash form and in most cases, processing other than grinding and mixing is not used. However, due to the high cost of energy in pig diets, use of high fiber ingredients such as soybean hulls, distillers dried grains with solubles, and wheat middlings has increased. High fiber concentrations in the diet usually results in reduced energy and nutrient digestibility due to the low capacity of pigs to digest fiber, which negatively impacts growth performance and carcass composition of the pigs...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/28572975/the-community-structure-of-methanomassiliicoccales-in-the-rumen-of-chinese-goats-and-its-response-to-a-high-grain-diet
#8
Wei Jin, Yanfen Cheng, Weiyun Zhu
BACKGROUND: The newly proposed methanogenic order 'Methanomassiliicoccales' is the second largest archaeal population in the rumen, second only to the Methanobrevibacter population. However, information is limited regarding the community of this new order in the rumen. METHODS: This study used real-time PCR and 454 pyrosequencing to explore the abundance and community composition of Methanomassiliicoccales in the rumen of Chinese goats fed a hay (0% grain, n = 5) or a high grain (65% grain, n = 5) diet...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/28540041/effects-of-quantitative-feed-restriction-and-sex-on-carcass-traits-meat-quality-and-meat-lipid-profile-of-morada-nova-lambs
#9
Thiago L A C de Araújo, Elzânia S Pereira, Ivone Y Mizubuti, Ana C N Campos, Marília W F Pereira, Eduardo L Heinzen, Hilton C R Magalhães, Leilson R Bezerra, Luciano P da Silva, Ronaldo L Oliveira
BACKGROUND: An experiment was conducted to evaluate the effects of feed restriction (FR) and sex on the quantitative and qualitative carcass traits of Morada Nova lambs. Thirty-five animals with an initial body weight of 14.5 ± 0.89 kg and age of 120 d were used in a completely randomized study with a 3 × 3 factorial scheme consisting of three sexes (11 entire males, 12 castrated males and 12 females) and three levels of feeding (ad libitum - AL and 30% and 60% FR). RESULTS: Entire males presented greater hot and cold carcass weights (P < 0...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/28533902/the-influence-of-in-ovo-injection-with-the-prebiotic-dinovo%C3%A2-on-the-development-of-histomorphological-parameters-of-the-duodenum-body-mass-and-productivity-in-large-scale-poultry-production-conditions
#10
Adrianna Sobolewska, Gabriela Elminowska-Wenda, Joanna Bogucka, Agata Dankowiakowska, Anna Kułakowska, Agata Szczerba, Katarzyna Stadnicka, Michał Szpinda, Marek Bednarczyk
BACKGROUND: Among various feed additives currently used in poultry nutrition, an important role is played by bioactive substances, including prebiotics. The beneficial effect of these bioactive substances on the gastrointestinal tract and immune system give rise to improvements in broiler health and performance nutrition, thus increasing the productivity of these birds. An innovative method for introducing bioactive substances into chickens is the in ovo injection into eggs intended for hatching...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/28491297/net-energy-of-corn-soybean-meal-and-rapeseed-meal-in-growing-pigs
#11
Zhongchao Li, Yakui Li, Zhiqian Lv, Hu Liu, Jinbiao Zhao, Jean Noblet, Fenglai Wang, Changhua Lai, Defa Li
BACKGROUND: Two experiments were conducted to estimate the net energy (NE) of corn, soybean meal, expeller-pressed rapeseed meal (EP-RSM) and solvent-extracted rapeseed meal (SE-RSM) using indirect calorimetry and to validate the NE of these four ingredients using pig growth performance. METHODS: In Exp.1, 24 barrows (initial BW = 36.4 ± 1.6 kg) were allotted to 1 of 4 diets which included a corn basal diet, a corn-soybean meal basal diet and two rapeseed meal diets containing 20% EP-RSM (9...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/28484596/association-of-growth-rate-with-hormone-levels-and-myogenic-gene-expression-profile-in-broilers
#12
Yingping Xiao, Choufei Wu, Kaifeng Li, Guohong Gui, Guolong Zhang, Hua Yang
BACKGROUND: The growth rate often varies among individual broilers of the same breed under a common management condition. To investigate whether a variation in the growth rate is associated with a difference in hormone levels and myogenic gene expression profile in broilers, a feeding trial was conducted with 10,000 newly hatched Ross 308 chicks in a commercial production facility under standard management. At 38 d of age, 30 fast-, 30 medium-, and 30 slow-growing broilers were selected among 600 healthy male individuals...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/28484595/fetal-and-neonatal-programming-of-postnatal-growth-and-feed-efficiency-in-swine
#13
REVIEW
Yun Ji, Zhenlong Wu, Zhaolai Dai, Xiaolong Wang, Ju Li, Binggen Wang, Guoyao Wu
Maternal undernutrition or overnutrition during pregnancy alters organ structure, impairs prenatal and neonatal growth and development, and reduces feed efficiency for lean tissue gains in pigs. These adverse effects may be carried over to the next generation or beyond. This phenomenon of the transgenerational impacts is known as fetal programming, which is mediated by stable and heritable alterations of gene expression through covalent modifications of DNA and histones without changes in DNA sequences (namely, epigenetics)...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/28484594/adipose-tissue-lipolysis-and-remodeling-during-the-transition-period-of-dairy-cows
#14
REVIEW
G Andres Contreras, Clarissa Strieder-Barboza, William Raphael
Elevated concentrations of plasma fatty acids in transition dairy cows are significantly associated with increased disease susceptibility and poor lactation performance. The main source of plasma fatty acids throughout the transition period is lipolysis from adipose tissue depots. During this time, plasma fatty acids serve as a source of calories mitigating the negative energy balance prompted by copious milk synthesis and limited dry matter intake. Past research has demonstrated that lipolysis in the adipose organ is a complex process that includes not only the activation of lipolytic pathways in response to neural, hormonal, or paracrine stimuli, but also important changes in the structure and cellular distribution of the tissue in a process known as adipose tissue remodeling...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/28484593/net-protein-and-metabolizable-protein-requirements-for-maintenance-and-growth-of-early-weaned-dorper-crossbred-male-lambs
#15
Tao Ma, Kaidong Deng, Yan Tu, Naifeng Zhang, Bingwen Si, Guishan Xu, Qiyu Diao
BACKGROUND: Dorper is an important breed for meat purpose and widely used in the livestock industry of the world. However, the protein requirement of Dorper crossbred has not been investigated. The current paper reports the net protein (NP) and metabolizable protein (MP) requirements of Dorper crossbred ram lambs from 20 to 35 kg BW. METHODS: Thirty-five Dorper × thin-tailed Han crossbred lambs weaned at approximately 50 d of age (20.3 ± 2.15 kg of BW) were used...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/28473913/alternative-prediction-methods-of-protein-and-energy-evaluation-of-pig-feeds
#16
REVIEW
Ewa Święch
Precise knowledge of the actual nutritional value of individual feedstuffs and complete diets for pigs is important for efficient livestock production. Methods of assessment of protein and energy values in pig feeds have been briefly described. In vivo determination of protein and energy values of feeds in pigs are time-consuming, expensive and very often require the use of surgically-modified animals. There is a need for more simple, rapid, inexpensive and reproducible methods for routine feed evaluation. Protein and energy values of pig feeds can be estimated using the following alternative methods: 1) prediction equations based on chemical composition; 2) animal models as rats, cockerels and growing pigs for adult animals; 3) rapid methods, such as the mobile nylon bag technique and in vitro methods...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/28469846/efficient-strategies-for-leave-one-out-cross-validation-for-genomic-best-linear-unbiased-prediction
#17
Hao Cheng, Dorian J Garrick, Rohan L Fernando
BACKGROUND: A random multiple-regression model that simultaneously fit all allele substitution effects for additive markers or haplotypes as uncorrelated random effects was proposed for Best Linear Unbiased Prediction, using whole-genome data. Leave-one-out cross validation can be used to quantify the predictive ability of a statistical model. METHODS: Naive application of Leave-one-out cross validation is computationally intensive because the training and validation analyses need to be repeated n times, once for each observation...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/28469845/effect-of-bacillus-subtilis-and-bacillus-licheniformis-supplementation-in-diets-with-low-and-high-protein-content-on-ileal-crude-protein-and-amino-acid-digestibility-and-intestinal-microbiota-composition-of-growing-pigs
#18
Chanwit Kaewtapee, Katharina Burbach, Georgina Tomforde, Thomas Hartinger, Amélia Camarinha-Silva, Sonja Heinritz, Jana Seifert, Markus Wiltafsky, Rainer Mosenthin, Pia Rosenfelder-Kuon
BACKGROUND: Bacillus spp. seem to be an alternative to antimicrobial growth promoters for improving animals' health and performance. However, there is little information on the effect of Bacillus spp. in combination with different dietary crude protein (CP) levels on the ileal digestibility and microbiota composition. Therefore, the objective of this study was to determine the effect of Bacillus spp. supplementation to low- (LP) and high-protein diets (HP) on ileal CP and amino acid (AA) digestibility and intestinal microbiota composition...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/28469844/the-roles-of-micrornas-in-regulation-of-mammalian-spermatogenesis
#19
REVIEW
Xiaoxu Chen, Xueliang Li, Jiayin Guo, Pengfei Zhang, Wenxian Zeng
Mammalian spermatogenesis contains three continuous and organized processes, by which spermatogonia undergo mitosis and differentiate to spermatocytes, follow on meiosis to form haploid spermatids and ultimately transform into spermatozoa. These processes require an accurately, spatially and temporally regulated gene expression patterns. The microRNAs are a novel class of post-transcriptional regulators. Cumulating evidences have demonstrated that microRNAs are expressed in a cell-specific or stage-specific manner during spermatogenesis...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/28469843/review-utilization-of-yeast-of-saccharomyces-cerevisiae-origin-in-artificially-raised-calves
#20
REVIEW
Gibson M Alugongo, Jianxin Xiao, Zhaohai Wu, Shengli Li, Yajing Wang, Zhijun Cao
Yeast of Saccharomyces cerevisiae (SCY) origin has over long time been incorporated into domestic animal diets. In calves, several products have offered improved performance and health. Although several types of research have been completed, the mode of action of SCY is not clear in calves. Under this review, we have highlighted the works available in the literature on the use of SCY in calves performance, health, immunity, and the gut environment. Both active live yeast and yeast culture have positive effects on growth, rumen, small intestines, immunity and general health of the calf...
2017: Journal of Animal Science and Biotechnology
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