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Animal Science Database

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Abstract

Efforts to understand biological functions and develop management schemes specific to Bos indicus-influenced cattle raised in tropical and subtropical environments are critical to meet the increasing global demand for protein. In the United States, B. indicus breeds are mostly used to generate B....

Author(s)
Cooke, R. F.; Cardoso, R. C.; Cerri, R. L. A.; Lamb, G. C.; Pohler, K. G.; Riley, D. G.; Vasconcelos, J. L. M.
Publisher
Oxford University Press, Cary, USA
Citation
Journal of Animal Science, 2020, 98, 2,
Abstract

Nellore is the main cattle breed used in Brazil, being the largest commercial herd in the world. Beyond the importance of male reproductive efficiency for farm profit, the use of reproductive techniques, mainly artificial insemination, turns the evaluation of male reproductive traits even more...

Author(s)
Carvalho Filho, I.; Marques, D. B. D.; Campos, C. F. de; Guimarães, J. D.; Guimarães, S. E. F.; Lopes, P. S.; Fonseca e Silva, F.; Veroneze, R.
Publisher
Wiley, Berlin, Germany
Citation
Reproduction in Domestic Animals, 2020, 55, 1, pp 38-43
Abstract

The objective was to evaluate the reproductive performance of frozen sex-sorted sperm at 4×106 sperm per dose (SexedULTRA 4 M, Sexing Technologies, Navasota, TX) relative to frozen conventional sperm in seasonal-calving pasture-based dairy cows. Semen from Holstein-Friesian (n=8) and Jersey (n=2)...

Author(s)
Maicas, C.; Holden, S. A.; Drake, E.; Cromie, A. R.; Lonergan, P.; Butler, S. T.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2020, 103, 1, pp 929-939
Abstract

The aim of this study was to estimate genetic parameters and genetic trends for male fertility in Norwegian Red bulls. We analyzed data on semen characteristics traits collected at the performance test station of young bulls from 1994 to 2016, in an andrology test used to ensure acceptable semen...

Author(s)
Olsen, H. B.; Heringstad, B.; Klemetsdal, G.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2020, 103, 1, pp 545-555
Abstract

Karan Fries is an Indian composite breed of cattle with superior milk production with a greater disease resistance than many other cattle. Understanding of the basic sperm and semen characteristics is necessary to develop the artificial insemination and sperm sexing methods. This study was...

Author(s)
Yata, V. K.; Gangwar, D. K.; Vishal Sharma; Dubey, S. K.; Yadav, S. K.; Suman Choudhary; Sudarshan Kumar; Mohanty, T. K.; Mohanty, A. K.
Publisher
Elsevier B.V., Amsterdam, Netherlands
Citation
Animal Reproduction Science, 2020, 212, pp 106250
Abstract

The aim of this study was to compare the embryonic developmental rates in the Southern African cattle breeds. To do this, cryopreserved semen straws from Nguni, Bonsmara, and Boran bulls were thawed at 38°C and evaluated for sperm motility characteristics using Sperm Class Analyser (SCA). The...

Author(s)
Mapeka, M. H.; Pilane, C. M.; Treadwell, R.; Ng'ambi, J.; Banga, C.
Publisher
Academic Journals, Lagos, Nigeria
Citation
African Journal of Biotechnology, 2019, 18, 30, pp 962-969
Abstract

The study aimed at the analysis of the functional status of cryopreserved bovine sperm using multicolor flow cytometry. The value of sperm functional traits as predictors of bull fertility was further evaluated through a retrospective fertility study. For this purpose, 20 Holstein-Friesian bulls...

Author(s)
Bucher, K.; Malama, E.; Siuda, M.; Janett, F.; Bollwein, H.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2019, 102, 12, pp 11652-11669
Abstract

This article describes the breeding operations and husbandry in a dairy farm in Switzerland.

Author(s)
Guillet, P.
Publisher
Schweizerischer Fleckviehzuchtverband, Zollikofen, Switzerland
Citation
SwissHerdbook Bulletin, 2019, No.8, pp 26-28
Abstract

The objective of this experiment was to evaluate effects of extended-release eprinomectin on fescue toxicosis and impacts on performance and reproduction in fall-calving beef cows. Fall-calving Angus × Simmental multiparous cows [n=335; age=5.8±2.1 yr; 586.5±6.0 kg body weight (BW); 5.48±0.05 body...

Author(s)
Volk, M. J.; Krause, T. R.; Stokes, R. S.; Ireland, F. A.; Shike, D. W.
Publisher
Oxford University Press, Oxford, UK
Citation
Translational Animal Science, 2019, 3, 4, pp 1423-1434
Abstract

Dairy bulls are evaluated using progeny data and genomic testing to determine the quantity of specific traits that they will pass to their daughters. Some bulls excel in some traits but not others. Specifying these various traits as outputs, with the single input of insemination, technical,...

Author(s)
Whitt, C. E.; Tauer, L. W.; Huson, H.
Publisher
Public Library of Sciences (PLoS), San Francisco, USA
Citation
PLoS ONE, 2019, 14, 11, pp e0223436

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