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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

Females and males of 7 commercial (ComCb) and 3 experimental (ExpCb) crossbreeds were produced by 6 imported parent stocks (PS) and 1 local PS. The ComCb were Dominant Red Barred (DR), Dominant Sussex (DS), Lohmann Brown (LB), Lohmann-Dual, NOVOgen Brown (NB), NOVOgen Color (NC), and local Koekoek...

Author(s)
Dawud Ibrahim; Gebeyehu Goshu; Wondmeneh Esatu; Cahaner, A.
Publisher
Oxford University Press, Oxford, UK
Citation
Poultry Science, 2019, 98, 9, pp 3405-3417
Abstract

In pig production, Pietrain and Duroc lines are often used as terminal sire lines to produce crossbred slaughter pigs. The objective of this study was to identify the differences in paternal fertility and mortality during the suckling period of crossbred progeny from Pietrain and Duroc terminal...

Author(s)
Pedersen, M. L. M.; Velander, I. H.; Nielsen, M. B. F.; Lundeheim, N.; Nielsen, B.
Publisher
Oxford University Press, Oxford, UK
Citation
Translational Animal Science, 2019, 3, 2, pp 885-892
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

Due to the increasing use of in vitro embryo production (IVEP) and the importance of crossbreeding for beef production, pregnancy rates of Nelore recipients were evaluated following Fixed Time Embryo Transfer with fresh or vitrified IVEP embryos produced with Y-sorted sperm of Angus bulls (B....

Author(s)
Bezerra, A. de O.; Nicacio, A. C.; Menezes, G. R. de O.; Gomes, R. da C.; Silva, L. O. C. da; Rocha-Frigoni, N. A. de S.; Mingoti, G. Z.; Leão, B. C. da S.; Costa e Silva, E. V. da; Nogueira, É.
Publisher
Elsevier B.V., Amsterdam, Netherlands
Citation
Animal Reproduction Science, 2019, 208, pp 106101
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

In the quest for predicting fertility of an individual, enhancing semen handling, dilution and storage protocols, and understanding the impact of environment and, andrologists have changed their approaches to semen analysis. The technologies used today are fast developing and readily implemented in ...

Author(s)
Boe-Hansen, G. B.; Satake, N.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2019, 137, pp 93-103
Abstract

Background: In modern dairy breeding programmes, high contributions from foreign sires are nearly always present. Genotyping, and therefore genomic selection (GS), concern only a subpopulation of the breeding programme's wider dairy population. These features of a breeding programme contribute in...

Author(s)
Matthews, D.; Kearney, J. F.; Cromie, A. R.; Hely, F. S.; Amer, P. R.
Publisher
BioMed Central Ltd, London, UK
Citation
Genetics, Selection, Evolution, 2019, 51, 40, pp (16 July 2019)
Abstract

Background: The application of cryopreservation and artificial insemination technology have contributed to the advancement of animal reproduction. However, a substantial proportion of spermatozoa undergoes alterations and loses their fertility during cryopreservation, rendering the frozen-thawed...

Author(s)
Nagata, M. B.; Egashira, J.; Katafuchi, N.; Endo, K.; Ogata, K.; Yamanaka, K.; Yamanouchi, T.; Matsuda, H.; Hashiyada, Y.; Yamashita, K.
Publisher
BioMed Central Ltd, London, UK
Citation
Journal of Animal Science and Biotechnology, 2019, 10, 91, pp (15 November 2019)

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