Effect of season and genotype on values for bull semen variables under tropical conditions

Effect of season and genotype on values for bull semen variables under tropical conditions

•Seasonal period and bull genotype are important factors affecting fresh semen traits in the tropics.•Even under improved management conditions, the elevated THI of this tropical zone negatively influenced sperm output.•Bos indicus and crossbred taurus x indicus were the least affected by seasonal v...

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Veröffentlicht in:Animal reproduction science 2020-10, Vol.221, p.106592-106592, Article 106592
Hauptverfasser: Landaeta-Hernández, Antonio J., Gil-Araujo, Marcelo A., Ungerfeld, Rodolfo, Owen Rae, D., Urdaneta-Moyer, Angela, Parra-Núñez, Alexander, Kaske, Martin, Bollwein, Heinrich, Chenoweth, Peter J.
Format: Artikel
Sprache:eng
Schlagworte:
Andrology
Bulls
Environment
Semen
Stress
Tropics
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Beschreibung
Zusammenfassung:•Seasonal period and bull genotype are important factors affecting fresh semen traits in the tropics.•Even under improved management conditions, the elevated THI of this tropical zone negatively influenced sperm output.•Bos indicus and crossbred taurus x indicus were the least affected by seasonal variations.•Improved results should occur by using tropically adapted genotype bulls for breeding purposes. To assess the effects of season and genotype on fresh semen quality for freezing and subsequent use for AI, 32 healthy, mature (>4 to
ISSN:0378-4320
1873-2232
DOI:10.1016/j.anireprosci.2020.106592