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Bovine sperm defects are affected by breed, age, season and region

Felton-Taylor, Judy; Prosser, Kelli A.; Hernandez-Medrano, Juan H.; Gentili, Sheridan; Copping, Katrina J.; Macrossan, Paula E.; Perry, Viv E.A.

Authors

Judy Felton-Taylor

Kelli A. Prosser

Juan H. Hernandez-Medrano

Sheridan Gentili

Katrina J. Copping

Paula E. Macrossan

Viv E.A. Perry



Abstract

This study reports the distribution of sperm morphology defects by breed, age, season and region of 11,387 bulls in 500 herds in Australia and near Pacific Islands during annual BBSE. Bull location was divided into 4 broad climatic regions based upon temperature, vegetation and climatic risk. Taking into account the impact of age, season, region, and breed there were differences between breeds in both percent morphologically normal sperm and in some individual categories of sperm abnormality (P < 0.001). Independent of breed, season and region, proximal droplets were significantly increased in bulls less than 20 months of age. This is the first study to comprehensively collect data from this wide geographical area and compare sperm morphology profiles among the Bos indicus and Bos taurus breeds. The findings of this study will act as a guide for veterinary practitioners and cattle breeders in the proportion of bulls that can be expected to pass the PNS test, by breed, age and region, based on a robust data set.

Citation

Felton-Taylor, J., Prosser, K. A., Hernandez-Medrano, J. H., Gentili, S., Copping, K. J., Macrossan, P. E., & Perry, V. E. (2020). Bovine sperm defects are affected by breed, age, season and region. Theriogenology, 142, 1-7. https://doi.org/10.1016/j.theriogenology.2019.09.001

Journal Article Type Article
Acceptance Date Sep 2, 2019
Online Publication Date Sep 5, 2019
Publication Date Jan 15, 2020
Deposit Date Sep 23, 2019
Publicly Available Date Mar 29, 2024
Journal Theriogenology
Print ISSN 0093-691X
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 142
Pages 1-7
DOI https://doi.org/10.1016/j.theriogenology.2019.09.001
Keywords Food Animals; Animal Science and Zoology; Equine; Small Animals
Public URL https://nottingham-repository.worktribe.com/output/2647871
Publisher URL https://www.sciencedirect.com/science/article/pii/S0093691X19303838

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