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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

This article describes the history of the Swiss Fleckvieh dairy breed in Switzerland, the negative effects of crossbreeding and the implementation of new herdbook regulations regarding the conservation of this breed.

Author(s)
Barenco, A.
Publisher
Schweizerischer Fleckviehzuchtverband, Zollikofen, Switzerland
Citation
SwissHerdbook Bulletin, 2019, No.7, pp 6-9
Abstract

In this single herd observational study, there is investigation of the effects of 81 sires (with 11,424 artificial inseminations) on conception rates in 1790 Holstein cows for 5 years. Sires were categorized based on the published sire conception rate (SCR) into different sire fertility groups...

Author(s)
Abdalla, H.; Elghafghuf, A.; Elsohaby, I.
Publisher
Elsevier B.V., Amsterdam, Netherlands
Citation
Animal Reproduction Science, 2019, 209, pp 106147
Abstract

Background: Subfertility decreases the efficiency of the cattle industry because artificial insemination employs spermatozoa from a single bull to inseminate thousands of cows. Variation in bull fertility has been demonstrated even among those animals exhibiting normal sperm numbers, motility, and...

Author(s)
Menezes, E. B.; Velho, A. L. C.; Santos, F.; Dinh, T.; Kaya, A.; Topper, E.; Moura, A. A.; Memili, E.
Publisher
BioMed Central Ltd, London, UK
Citation
BMC Genomics, 2019, 20, 714, pp (18 September 2019)
Abstract

An experiment was designed to compare fertility of SexedULTRA 4 MTM sex-sorted semen and conventional, non-sex-sorted semen following either fixed-time artificial insemination (FTAI) or split-time artificial insemination (STAI) of mature suckled beef cows. Units of sex-sorted and conventional semen ...

Author(s)
Thomas, J. M.; Locke, J. W. C.; Bonacker, R. C.; Knickmeyer, E. R.; Wilson, D. J.; Vishwanath, R.; Arnett, A. M.; Smith, M. F.; Patterson, D. J.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2019, 123, pp 100-107
Abstract

In cattle artificial insemination plays not only a vital role in the successful establishment of pregnancy, which is a prerequisite for initiation of the subsequent lactation, but also in accelerating genetic improvement and facilitating the distribution of semen from genetically elite sires. The...

Author(s)
Diskin, M. G.
Publisher
Cambridge University Press, Cambridge, UK
Citation
Animal, 2018, 12, s1, pp s75-s84
Abstract

The aim of this review is to compare the performance of different reproductive programs using natural service, estrus synchronization treatment before natural service (timed natural breeding (TNB)), artificial insemination (AI) following estrus detection and timed artificial insemination (TAI) in...

Author(s)
Baruselli, P. S.; Ferreira, R. M.; SáFilho, M. F.; Bó, G. A.
Publisher
Cambridge University Press, Cambridge, UK
Citation
Animal, 2018, 12, s1, pp s45-s52
Abstract

The objective of this study was to compare conception rates of female beef cattle inseminated at a fixed-time with either conventional (CON) or SexedUltraTM sex-sorted (SU) semen. Treatments included CON or SU with two sires represented within each treatment. Cows (n=316) and heifers (n=78) from...

Author(s)
Crites, B. R.; Vishwanath, R.; Arnett, A. M.; Bridges, P. J.; Burris, W. R.; McLeod, K. R.; Anderson, L. H.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2018, 118, pp 126-129
Abstract

Two experiments were conducted to determine (i) factors influencing calf temperament at weaning, (ii) association between heifer-calf temperament at weaning and temperament at breeding and (iii) effect of heifer-calf temperament on pregnancy rate per artificial insemination (P/AI). In experiment 1, ...

Author(s)
Kasimanickam, V. R.; Aziz, R. L. A.; Williams, H. M.; Kasimanickam, R. K.
Publisher
Wiley, Berlin, Germany
Citation
Reproduction in Domestic Animals, 2018, 53, 2, pp 484-494
Abstract

Research on sexed semen breeding techniques has largely focused on purebred cattle production systems and little work has been done evaluating sexed semen use in crossbred dairy cattle. Complementing a crossbreeding reproduction strategy with sexed semen artificial insemination (AI) has the...

Author(s)
Barrientos-Blanco, J. A.; Thompson, N. M.; Widmar, N. J. O.; Wolf, C. A.; Snyder, L. U.
Publisher
Elsevier B.V., Amsterdam, Netherlands
Citation
Livestock Science, 2018, 211, pp 66-74

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