Importance of sperm genotype (indicus verus taurus) for fertility and embryonic development at elevated temperatures

Heat stress has negative effects on bovine reproduction, particularly for European breeds (Bos taurus taurus) that are less thermotolerant than zebu cattle (Bos taurus indicus). Here, the evidence that spermatozoa and oocyte both contribute to early embryonic resistance to heat shock is demonstrated...

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Bibliographic Details
Published in:	Theriogenology Vol. 65; no. 7; pp. 210 - 218
Main Authors:	Barros, C.M, Pegorer, M.F, Vasconcelos, J.L.M, Eberhardt, B.G, Monteiro, F.M
Format:	Journal Article
Language:	English
Published:	2006
Subjects:	artificial insemination heat tolerance spermatozoa
Online Access:	Get full text
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Summary:	Heat stress has negative effects on bovine reproduction, particularly for European breeds (Bos taurus taurus) that are less thermotolerant than zebu cattle (Bos taurus indicus). Here, the evidence that spermatozoa and oocyte both contribute to early embryonic resistance to heat shock is demonstrated. In addition, the use of reproductive biotechnologies to improve bovine thermotolerance, are outlined by comparing data from taurus, indicus and crossbred genotypes.
ISSN:	0093-691X 1879-3231