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Asian-Australasian Journal of Animal Sciences

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https://www.readbyqxmd.com/read/30056688/the-influence-of-a-first-order-antedependence-model-and-hyperparameters-in-bayescpi-for-genomic-prediction
#1
Xiujin Li, Xiaohong Liu, Yaosheng Chen
Objective: The Bayesian first-order antedependence models, which specified SNP effects as being spatially correlated in the conventional BayesA/B, were more accurate in genomic prediction than their corresponding classical counterparts. Given advantages of BayesCpi over BayesA/B, we have developed hyper-BayesCpi, ante-BayesCpi, and ante-hyper-BayesCpi to evaluate influences of the antedependence model and hyperparameters on BayesCpi. Methods: Three public data (two simulated data and one mice data) were used to validate our proposed methods...
July 26, 2018: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/30056687/comparative-evaluation-of-supplemental-zilpaterol-hydrochloride-sources-on-growth-performance-dietary-energetics-and-carcass-characteristics-of-finishing-lambs
#2
Alejandro Rivera-Villegas, Alfredo Estrada-Angulo, Beatriz I Castro-Pérez, Jesús D Urías-Estrada, Francisco G Ríos-Rincón, Daniel Rodríguez-Cordero, Alberto Barreras, Víctor Manuel González-Vizcarra, Jesús Francisco Sosa-Gordillo, Richard Avery Zinn, Alejandro Plascencia
Objective: We compare the effects of three different approved sources of supplemental zilpaterol on growth-performance responses and carcass characteristics of finishing lambs. Method: Twenty four Pelibuey × Katahdin lambs (46.75 ± 2.43 kg) were used in a 33-day feeding trial. Lambs were fed a dry rolled corn-based finishing diet. Treatments consisted of the non-supplemental basal diet (Control) versus the basal diet supplemented with 125 mg zilpaterol/kg of diet (as fed basis) from three commercial sources marketed in Mexico: Zilmax (ZIL), Grofactor (GRO) and Zipamix (ZIPA)...
July 26, 2018: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/30056686/changes-in-the-diversity-of-rumen-bacterial-community-by-a-sudden-change-to-a-high-concentrate-diet-in-korean-domestic-ruminants
#3
Mingyung Lee, Sinyong Jeong, Jakyeom Seo, Seongwon Seo
Objective: To investigate changes in rumen fermentation characteristics and bacterial community by a sudden change to a high concentrate diet (HC) in Korean domestic ruminants. Methods: Major Korean domestic ruminants (each of four Hanwoo cows; 545.5 ± 33.6 kg, Holstein cows; 516.3 ± 42.7 kg, and Korean native goats; 19.1 ± 1.4 kg) were used in this experiment. They were housed individually and were fed ad libitum with a same TMR (800 g/kg timothy hay and 200 g/kg concentrate mix) twice daily...
July 26, 2018: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/30056685/application-of-autofom-iii-equipment-for-prediction-of-primal-and-commercial-cut-weight-of-korean-pig-carcasses
#4
Jung Seok Choi, Ki Mun Kwon, Young Kyu Lee, Chang Uk Chung, Kyung Ok Lee, Sang Keun Jin, Yang Il Choi, Jae Joon Lee
Objective: This study was conducted to enable on-line prediction of primal and commercial cut weights in Korean slaughter pigs by AutoFom III, which non-invasively scans pig carcasses early after slaughter using ultrasonic sensors. Methods: A total of 162 Landrace, Yorkshire, and Duroc (LYD) pigs and 154 LYD pigs representing the yearly Korean slaughter distribution were included in the calibration and validation dataset, resp ectively. Partial least squares (PLS) models were developed for prediction of the weight of deboned shoulder blade, shoulder picnic, belly, loin, and ham...
July 26, 2018: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/30056684/physiochemical-characteristics-and-fermentation-ability-of-milk-from-czech-fleckvieh-cows-are-related-to-genetic-polymorphisms-of-%C3%AE-casein-%C3%AE%C2%BA-casein-and-%C3%AE-lactoglobulin
#5
Jitka Kyselová, Kateřina Ječmínková, Jitka Matějíčková, Oto Hanuš, Tomáš Kott, Miloslava Štípková, Michaela Krejčová
Objective: The aim of the study was to find a possible association between the β- and κ-casein and β-lactoglobulin genotypes and important milk physiochemical and technological characteristics such as acidity, alcohol stability, the contents of some minerals and the parameters of acid fermentation ability (FEA) in Czech Fleckvieh Cattle. Methods: Milk and blood samples were collected from 338 primiparous Czech Fleckvieh cows at the same stage of lactation. The genotypes of individual cows for κ-casein (alleles A, B and E) and β-lactoglobulin (alleles A and B) were ascertained by PCR-RFLP, while their β-casein (alleles A1, A2, A3 and B) genotype was determined using melting curve genotyping analysis...
July 26, 2018: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/30056683/relationship-between-the-structure-and-composition-of-rumen-microorganisms-and-the-digestibility-of-neutral-detergent-fibre-in-goats
#6
Kaizhen Liu, Lizhi Wang, Tianhai Yan, Zhisheng Wang, Bai Xue, Quanhui Peng
Objective: This experiment was conducted to compare the structure and composition of ruminal microorganisms in goats with high and low neutral detergent fibre (NDF) digestibility. Methods: Nineteen crossbred goats were used as experimental animals and fed the same total mixed rations during the 30-day pre-treatment and 6-day digestion trial periods. All faeces were collected during the digestion period for measuring the NDF digestibility. Then, high and the low NDF digestibility individuals were chosen for the high NDF digestibility group (HFD) and Low NDF digestibility group (LFD), respectively...
July 26, 2018: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/30056682/assessment-of-genetic-diversity-and-phylogenetic-relationship-of-limousin-herds-in-hungary-using-microsatellite-markers
#7
Márton Szűcs, Ferenc Szabó, Beáta Bán, Csilla Józsa, László Rózsa, Attila Zsolnai, István Anton
Objective: This study was conducted to investigate basic information on genetic structure and characteristics of Limousin population in Hungary. Obtained results will be taken into consideration when adopting the new breeding strategy by the Association of Hungarian Limousin & Blonde d'Aquitaine Breeders (AHLBB). Methods: Genetic diversity and phylogenetic relationship of 3443 Limousin cattle from 16 different herds were investigated by performing genotyping using 18 microsatellite markers...
July 26, 2018: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/30056681/effects-of-diet-and-roughage-quality-and-period-of-the-day-on-diurnal-feeding-behaviour-patterns-of-sheep-and-goats-under-subtropical-conditions
#8
Mehluli Moyo, Rasheed Adekunle Adebayo, Ignatius Verla Nsahlai
Objective: This study investigated the effect of diet and roughage quality (RQ) on dry matter intake, duration and number of daytime and night-time eating bouts, idling sessions and ruminating activities in small ruminants. Methods: In Exp 1 and 2, RQ was improved by urea treatment of veld hay, while diet quality was improved by supplementing with Lucerne hay (Exp 3), sunflower meal and lespedeza (Exp 4), fish meal (Exp 5a) and sunflower meal (Exp 5b). In all experiments goats and sheep were blocked by weight and randomly allocated to experimental diets...
July 26, 2018: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/30056680/effect-of-graded-levels-of-soapnut-sapindus-mukorossi-shell-powder-on-reproductive-performance-in-broiler-breeders
#9
Sandeep Kumar Chaudhary, Asit Baran Mandal, Rasbihari Bhar, M Gopi, A Kannan, Sunil E Jadhav, Jaydip J Rokade
Objective: This study investigated the effects of soapnut (Sapindus mukorossi) shell powder (SSP) on serum hormone level, egg quality, semen characteristics and reproductive performance of broiler breeders fed with the maize-soybean meal based diet. Methods: Ninety six female and twenty four male CARIBRO-VISHAL broiler breeders, 38-week old, were individually caged and randomly allocated to four treatment groups (24 female breeders/treatment and 6 male breeders/treatment): an un-supplemented control (T1) and three groups with 0...
July 26, 2018: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/30056679/evaluation-of-glycerol-encapsulated-with-alginate-and-alginate-chitosan-polymers-in-gut-environment-and-resistance-to-rumen-microbial-degradation
#10
Ramadan Gawad, Vivek Fellner
Objective: To determine the effect of gut pH and rumen microbial fermentation on glycerol encapsulated in alginate and alginate-chitosan polymers. Methods: Glycerol (G) was encapsulated at 2.5, 5, 7.5 or 10 % (w/w) with sodium alginate (A) and alginate-chitosan (AC) polymers. Surface morphology and chemical modifications of the beads were evaluated using scanning electron microscopy and FTIR spectra. Encapsulation efficiency was determined at the 5% glycerol inclusion level in two experiments...
July 26, 2018: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/30056678/a-comparison-of-liveweight-gain-of-lambs-weaned-early-onto-a-herb-clover-mixed-sward-and-weaned-conventionally-onto-a-ryegrass-clover-pasture
#11
Lukshman Jayampathi Ekanayake, Rene Corner-Thomas, Lydia Cranston, Paul Kenyon, Stephen Morris
Objective: The aim of the present study was to identify the impact of early weaning of lambs at approximately seven weeks of age onto a herb-clover mix on the liveweight gain of lambs and their dams. Methods: In 2015, twin-born lambs that weighed a minimum of 16 kg (n=134) were randomly allocated to one of three treatments:(i) Early-weaned (58 days after the midpoint of lambing) onto an unrestricted allowance (>1200 kg DM/ha) of herb-clover mix (HerbEW); (ii) Lambs + dams unweaned onto an unrestricted allowance of herb-clover mix until conventional weaning (95 days after the midpoint of lambing) (HerbCW); (iii) Lambs + dams unweaned onto an unrestricted allowance of grass-clover pasture until conventional weaning (GrassCW)...
July 26, 2018: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/30056677/extent-of-linkage-disequilibrium-and-effective-population-size-of-korean-yorkshire-swine
#12
Donghyun Shin, Kyeong-Hye Won, Sung-Hoon Kim, Yong-Min Kim
Objective: We aimed to characterize LD and Ne in a Korean Yorkshire population using genomic data from thousands of individuals. Methods: We genotyped 2,470 Yorkshire individuals from four Korean major grand-grand-parent (GGP) farms using the Illumina PorcineSNP60 version2 BeadChip, which covers >61,565 SNPs located across all chromosome and mitochondrial. We estimated the expected linkage disequilibrium (LD) and inferred current effective population size (Ne), as well as ancestral Ne...
July 26, 2018: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/30056676/genetic-diversity-and-divergence-among-korean-cattle-breeds-assessed-using-a-bovinehd-single-nucleotide-polymorphism-chip
#13
Seungchang Kim, Hyun Sub Cheong, Hyoung Doo Shin, Sung-Soo Lee, Hee-Jong Roh, Da-Yeon Jeon, Chang-Yeon Cho
Objectives: In Korea, there are three main cattle breeds, which are distinguished by coat color: Brown Hanwoo (BH), Brindle Hanwoo (BRH), and Jeju Black (JB). In this study, we sought to compare the genetic diversity and divergence among there Korean cattlel breeds using a BovineHD chip genotyping array. Methods: Sample data were collected from 168 cattle in three populations of BH (48 cattle), BRH (96 cattle), and JB (24 cattle). The SNP genotyping was performed using the Illumina BovineHD SNP 777K Bead chip...
July 26, 2018: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/30056675/effects-of-preselection-of-genotyped-animals-on-reliability-and-bias-of-genomic-prediction-in-dairy-cattle
#14
Kenji Togashi, Kazunori Adachi, Kazuhiko Kurogi, Takanori Yasumori, Kouichi Tokunaka, Atsushi Ogino, Yoshiyuki Miyazaki, Toshio Watanabe, Tsutomu Takahashi, Kimihiro Moribe
Objective: Models for genomic selection assume that the reference population is an unselected population. However, in practice, genotyped individuals, such as progeny-tested bulls, are highly selected, and the reference population is created after preselection. In dairy cattle, the intensity of selection is higher in males than in females, suggesting that cows can be added to the reference population with less bias and loss of accuracy. The objective is to develop formulas applied to any genomic prediction studies or practice with preselected animals as reference population...
July 26, 2018: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/30056674/detection-of-genome-wide-structural-variations-in-the-shanghai-holstein-cattle-population-using-next-generation-sequencing
#15
Dengying Liu, Zhenliang Chen, Zhe Zhang, Hao Sun, Peipei Ma, Kai Zhu, Guanglei Liu, Qishan Wang, Yuchun Pan
Objective: The Shanghai Holstein cattle breed is susceptible to severe mastitis and other diseases and suffers from hot weather and long-term humidity in Shanghai, where the main centre for providing Holstein semen for farms distributed throughout China is located. Our objective was to determine the genetic mechanisms influencing important economic traits, especially diseases that heavily impact the yield and quality of milk and reproduction. Methods: In our study, we detected the structural variations of 1092 Shanghai Holstein cows by using next-generation sequencing...
July 26, 2018: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/30056673/fermentation-characteristics-chemical-composition-and-microbial-community-of-tropical-forage-silage-under-different-temperatures
#16
Dongxia Li, Kuikui Ni, Yingchao Zhang, Yanli Lin, Fuyu Yang
Objective: In tropical regions, as in temperate regions where seasonality of forage production occurs, well-preserved forage is necessary for animal production during periods of forage shortage. However, the unique climate conditions (hot and humid) and forage characteristics (high moisture content and low soluble carbohydrate) in the tropics make forage preservation more difficult. The current study used natural ensiling of tropical forage as a model to evaluate silage characteristics under different temperatures (28°C and 40°C)...
July 26, 2018: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/30056672/effect-of-optimal-sodium-stearoyl-2-lactylate-supplementation-on-growth-performance-and-blood-and-carcass-characteristics-in-hanwoo-steers-during-the-early-fattening-period
#17
Shin Ja Lee, Sang Suk Lee, Eun Tae Kim, Jin Suk Jeong, Ji Hoon Lee, Joon Jeong, Joong Kook Park, Beom Young Park, Ha Yeon Jeong, Kwang Seok Ki, Chang Hyun Kim, Sung Sill Lee
Objective: This study was conducted to evaluate the effect of different levels of total digestible nutrients (TDN) and sodium stearoyl lactylate (SSL) supplementation on growth performance and blood and carcass characteristics in Hanwoo steers during the early fattening period. Methods: Sixty Hanwoo steers (average body weight, 333±36.4 kg) were randomly allotted into 3 treatments, with twenty steers per treatment, and ten steers per pen with a size of 80 m2. Dietary treatments were as follows: CON, basal diet; TRT 0...
July 26, 2018: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/30056671/relationship-between-saliva-and-blood-cortisol-in-handled-cows
#18
Melody Dzviti, Lizwell Mapfumo, Voster Muchenje
Objective: The objective of the study was to determine the relationship between plasma and salivary cortisol concentrations in beef cattle that were subjected to handling prior to sampling. Methods: Twenty-one Nguni cows of three age categories; 5-7yrs (n= 7), 8-10yrs (n=6) and 11-13yrs (n=8) were handled for five consecutive weeks. In the pen, a human avoidance test was performed and cattle responses to restraint in the chute and crush were observed. In addition, faecal samples were collected and analysed for glucocorticoid metabolites, and rectal temperature readings were taken...
July 26, 2018: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/30056670/research-on-gene-expression-and-promoter-methylation-of-porcine-uncoupling-protein-3-gene
#19
Ruiyi Lin, Weimin Lin, Qiaohui Chen, Jianchao Huo, Yuping Hu, Junxiao Ye, Jingya Xu, Tianfang Xiao
Objective: Uncoupling Protein 3 gene (UCP3) is a candidate gene associated with the meat quality of pig. The aim of this study was to explore the regulation mechanism of UCP3 expression and provide a theoretical basis for the research of the function of porcine UCP3 gene in meat quality. Methods: Bisulfite sequencing PCR (BSP) and quantitative real-time PCR (Q-PCR) were used to analyze the methylation of UCP3 5'-flanking region and UCP3 mRNA expression in the adipose tissue or skeletal muscle of three pig breeds at different ages (1, 90, 210-day-old Putian Black pig; 90-day-old Duroc; and 90-day-old Dupu)...
July 26, 2018: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/30056669/association-of-polymorphisms-in-pit-1-gene-with-growth-and-feed-efficiency-in-meat-type-chickens
#20
Sihua Jin, Tingting He, Lei Yang, Yucui Tong, Xingyong Chen, Zhaoyu Geng
Objective: The pituitary specific transcription factor-1 (Pit-1) gene is responsible for pituitary development and growth hormone expression and is regarded as a pivotal candidate gene for growth and production in chickens. Therefore, the aim of this study was to investigate the association of Pit-1 polymorphisms with growth and feed efficiency traits in yellow meat-type chickens. Methods: In the present study, five SNPs of Pit-1 were selected and genotyped by high-throughput matrix-assisted laser desorption-ionization time-of-flight mass spectrometry (MALDI-TOF MS) in meat-type chicken populations with a total of 724 birds...
July 26, 2018: Asian-Australasian Journal of Animal Sciences
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