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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

This study evaluated effects of equine chorionic gonadotropin (eCG) on fertility of 679 crossbred (Bos taurus × Bos indicus) lactating grazing cows synchronized for fixed-time AI (FTAI). At a random day of the estrous cycle cows received an intravaginal progesterone (P4) implant, 2 mg estradiol...

Author(s)
Prata, A. B.; Pontes, G. C. S.; Monteiro Júnior, P. L. J.; Drum, J. N.; Wiltbank, M. C.; Sartori, R.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2017, 98, pp 36-40
Abstract

Author(s)
Göbbel, T.
Publisher
DLG AgroFood medien gmbh, Bonn, Germany
Citation
Milchpraxis, 2016, 54, 2, pp 46-49
Abstract

Development of the livestock industry and its role in poverty alleviation in developing countries depends on how adaptive the production systems are to changing global environmental and economic trends. This paper characterizes dairy production systems in India, Tanzania, Kenya and Nicaragua, and...

Author(s)
Ojango, J. M. K.; Wasike, C. B.; Enahoro, D. K.; Okeyo, A. M.
Publisher
Food and Agriculture Organization of the United Nations (FAO), Rome, Italy
Citation
Animal Genetic Resources, 2016, 59, pp 81-95
Abstract

The objectives were to compare development and transcriptome of preimplantation conceptuses 15 d after synchronized ovulation and artificial insemination (AI) according to the genetic background of the cow and estrous cyclicity at the initiation of the synchronization program. On d 39±3 postpartum, ...

Author(s)
Ribeiro, E. S.; Monteiro, A. P. A.; Bisinotto, R. S.; Lima, F. S.; Greco, L. F.; Ealy, A. D.; Thatcher, W. W.; Santos, J. E. P.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2016, 99, 6, pp 4761-4777
Abstract

This study investigated differences between phenotypes of daughters of artificial insemination (AI)-bulls and daughters of natural service (NS)-bulls, respectively, on organic dairy farms in Switzerland. Organic rules recommend the use of natural mating. Therefore it is of interest whether those...

Author(s)
Neff, A. S.; Ivemeyer, S.
Publisher
Elsevier B. V., Amsterdam, Netherlands
Citation
Livestock Science, 2016, 185, pp 30-33
Abstract

The objective of this observational experiment was to determine the association between the interval from reaching activity threshold (AT) to artificial insemination (AI) with sex-sorted semen and the probability of pregnancy. Jersey cows (n=678) from a commercial dairy herd were fitted with...

Author(s)
Bombardelli, G. D.; Soares, H. F.; Chebel, R. C.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2016, 85, 3, pp 533-539
AbstractFull Text

Crossbreeding is regarded as a faster way than using pure dairy breeds to improve the reproductive performance of dairy cows, which is pivotal to farm income. The reproductive performances of Jersey and Fleckvieh × Jersey (F × J) heifers and cows were compared in a pasture-based production system....

Author(s)
Goni, S.; Muller, C. J. C.; Dube, B.; Dzama, K.
Publisher
South African Society of Animal Science, Hatfield, South Africa
Citation
South African Journal of Animal Science, 2015, 45, 4, pp 379-385

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