VGO-0151
QUESTION
Which semen has least forms of abnormal sperms?
OPTIONS
(A) Buck
(B) Stallion
(C) Ram
(D) Dog
ANSWER
(A) Buck
EXPLANATION
Among the species listed, buck semen generally has the highest proportion of morphologically normal spermatozoa and therefore the lowest proportion of abnormal forms. Standard semen-characteristic tables commonly report >90% morphologically normal sperm in bucks, compared with about >80% in rams and >60% in stallions; dogs may normally tolerate a higher proportion of sperm abnormalities than bucks. Therefore, option (A), buck, is correct.
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Veterinary Gynaecology and Obstetrics · 240 Questions
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