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Hormonal effects on pelvic development and calving difficulty in beef cattle



Hormonal effects on pelvic development and calving difficulty in beef cattle



Dissertation Abstracts International 36B(8): 3963



Hereford heifer calves (2-month-old) were implanted with 200 mg progesterone and 20 mg oestradiol (PO); some were implanted again after 61 days. Hereford steer calves were treated similarly either with one PO implant or with one or two implants of 200 mg testosterone and 20 mg oestradiol. The implanted calves had higher weight gains which occurred mostly during the first month after the first implant; the second implant did not have any effect.

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Accession: 000396956

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