Failure to expel fetal membranes within which period after calving is commonly termed retained placenta in cattle?
Correct answer: D. More than 12 hours
- A. More than 2 hours
- B. More than 6 hours
- C. More than 24 hours
- D. More than 12 hours
Explanation
In cattle, fetal membranes are commonly considered retained when they remain attached beyond about 12 hours after calving. Earlier passage can still be normal, while waiting 24 hours delays recognition and management.
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About Theriogenology and Animal Reproduction
Covers the reproductive anatomy and physiology of male and female domestic animals, including puberty, oestrous cycles, ovulation, fertilisation, pregnancy, parturition and lactation. It also includes artificial insemination, semen evaluation, pregnancy diagnosis, infertility, dystocia and reproductive disorders, with attention to species differences.
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