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Abstract

Objective: The objective of this study was to develop a model for estimating the carcass weight of Hanwoo cattle as a function of body measurements using three different modeling approaches: (i) multiple regression analysis, (ii) partial least square regression analysis, and (iii) a neural network. ...

Author(s)
Lee DaeHyun; Lee SeungHyun; Cho ByoungKwan; Wakholi, C.; Seo YoungWook; Cho SooHyun; Kang TaeHwan; Lee WangHee
Publisher
Asian-Australasian Association of Animal Production Societies, Seoul, Korea Republic
Citation
Asian-Australasian Journal of Animal Sciences, 2020, 33, 10, pp 1633-1641
Abstract

The aim of this study was to investigate the genetic diversity and population structure of six Ethiopian cattle breeds. Illumina's Bovine HD BeadChip was used to genotype 76 DNA samples from indigenous cattle breeds, which were named after their regions of origin, namely Benishangul (n = 12),...

Author(s)
Selam Meseret; Mekonnen, Y. A.; Brenig, B.; Schütz, E.; Olivier Hanotte; Gültas, M.; Schmitt, A. O.
Publisher
Elsevier B.V., Amsterdam, Netherlands
Citation
Livestock Science, 2020, 234,
Abstract

Carcass traits have been efficiently improved by recent selection using DNA markers in beef cattle. Additionally, DNA markers might have an effect on other traits such as fertility traits; therefore attention should also be paid to such pleiotropic effects. However, the effects of the markers on...

Author(s)
Kawaguchi, F.; Tsuchimura, M.; Oyama, K.; Matsuhashi, T.; Maruyama, S.; Mannen, H.; Sasazaki, S.
Publisher
Copernicus Gesellschaft mbH, Gottingen, Germany
Citation
Archives Animal Breeding, 2020, 63, 1, pp 9-17
Abstract

Three statistical models (an admixture model, linear regression, and ridge-regression BLUP) and two strategies for selecting SNP panels (uniformly spaced vs. maximum Euclidean distance of SNP allele frequencies between ancestral breeds) were compared for estimating genomic-estimated breed...

Author(s)
Li, Z.; Wu, X. L.; Guo, W.; He, J.; Li, H.; Rosa, G. J. M.; Gianola, D.; Tait, R. G., Jr.; Parham, J.; Genho, J.; Schultz, T.; Bauck, S.
Publisher
Wiley, Oxford, UK
Citation
Animal Genetics, 2020, 51, 3, pp 457-460
Abstract

Background: A composite breed is made up of two or more purebreds (ancestries), designed to combine advantageous genetic characteristics from the ancestry breeds and to retain heterosis in future generations without crossbreeding. Unlike crossbred populations, composite variety can be maintained as ...

Author(s)
He Jun; Li Zhi; Wu XiaoLin
Publisher
Scientia Agricultura Sinica, Beijing, China
Citation
Scientia Agricultura Sinica, 2020, 53, 1, pp 191-200
AbstractFull Text

The aim of this study was to assess the ingestive behavior of concentrate and milking of dairy cows in automatic milking system (AMS) according to parity. The experiment was conducted from March to June 2014, in Castro, PR, with Holstein cows housed in a free stall, milked automatically, and...

Author(s)
Córdova, H. A.; Cardozo, L. L.; Alessio, D. R. M.; Neto, A. T.
Publisher
FEPMVZ - Editora, Belo Horizonte, Brazil
Citation
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2020, 72, 1, pp 263-272
Abstract

Beef cattle are often exposed to extreme environmental conditions with varying temperatures, humidity, wind speed, and solar radiation. The objective of this study was to investigate the impact of cold stress on growth-related traits and to assess its variation between sire families in a composite...

Author(s)
Toghiani, S.; Hay, E. H.; Roberts, A.; Rekaya, R.
Publisher
Elsevier B.V., Amsterdam, Netherlands
Citation
Livestock Science, 2020, 236,
AbstractFull Text

Blood cell analysis and serum biochemistry are tests used to evaluate the health status of the individual and also the herd. Local reference values are adequate for better evaluation due to the influence of environmental and animal management factors. Thus, the objective of this work was to...

Author(s)
Uhrig, L.; Allgayer, M. da C.; Soares, J. C. dos R.; Reis, R. W. dos; Pereira, M. de F.; Aguiar, P. R. de L.
Publisher
Universidade Luterana do Brasil, Canoas, Brazil
Citation
Veterinaria em foco, 2020, 17, 2, pp 56-66
AbstractFull Text

Predicting the excretion of feces, urine and nitrogen (N) from dairy cows is an effective way to prevent and control the environmental pollution caused by scaled farming. The traditional prediction methods such as pollutant generation coefficient (PGC) and mathematical model based on linear...

Author(s)
Fu Qiang; Shen WeiZheng; Wei XiaoLi; Yin YanLing; Zheng Ping; Zhang YongGen; Su ZhongBin; Zhao ChunJiang
Publisher
Chinese Society of Agricultural Engineering, Beijing, China
Citation
International Journal of Agricultural and Biological Engineering, 2020, 13, 2, pp 48-56
Abstract

A comparative lipidomic profiling analysis of dairy cattle oocytes with different developmental competences was performed using a combination of high performance liquid chromatography-high resolution tandem mass spectrometry and multivariate statistical analysis. Significant lipidomic changes were...

Author(s)
Chen Zhen; Wu Yue; Nagano, M.; Ueshiba, K.; Furukawa, E.; Yamamoto, Y.; Chiba, H.; Hui ShuPing
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2020, 144, pp 56-66

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