THE EFFECT OF STEER AND HEIFER BLOOD SERUM IN SKIM MILK EXTENDER ON UNFROZEN BOVINE SEMEN

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By Abdelrahman, A. M., Wilson, G. R., Threlfall, W. R., Davis, M. E.

Abstracts

Twenty four semen samples from 13 Holstein bulls, 6 to 7 years of age, were used to test the effect of adding 10% heat-treated blood serum from steers and heifers to skim milk e:-.:tender. The effects of serum on percent alive, percent motility, percent heat-to-head agglutination (BRA) . and acrosomal damages of the spermatozoa were evaluated in vitro at temperature of .5 C and 37 C The analysi s of variance showed significant difference due to extenders for percent alive (P=O.Ol, motility (P

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