Effect of prepartal hormone administration on feed intake and mineral metabolism of cows

Journal of Dairy Science
J F BargelohH R Conrad

Abstract

Subcutaneous administration of progesterone (.25 mg/kg body weight per day) to mature cows from 14 days before projected parturition until parturition increased feed intake over control cows. Incidence of milk fever and plasma calcium, phosphorus, magnesium, and hydroxyproline were not significantly different between treated and control cows. Subcutaneous administration of estradiol-17beta (.05 mg/kg body weight per day) or oral administration of melengestrol acetate (1 mg/day) from 7 days before projected parturition date until parturition decreased feed intake over control cows. Milk fever incidence and absorption of calcium, phosphorus, and magnesium were not significantly different between treatment groups. Plasma calcium was not significantly different between treatment groups during either the prepartum or postpartal periods but tended to be higher postpartum in cows treated with estrogen.

References

Sep 1, 1972·The British Journal of Nutrition·G D BraithwaiteS Riazuddin
Mar 1, 1972·Journal of Reproduction and Fertility·W JöchleM A Hidalgo
Jan 1, 1971·Hormone and Metabolic Research = Hormon- Und Stoffwechselforschung = Hormones Et Métabolisme·J P Barlet
Sep 1, 1971·The Proceedings of the Nutrition Society·J M Forbes
Jan 1, 1970·Acta Endocrinologica. Supplementum·G MikhailR L Vande Wiele
Jan 1, 1970·Metabolism: Clinical and Experimental·L R Klein, S S Yen
Jun 1, 1969·American Journal of Clinical Pathology·J SavoryM G Heintges

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Citations

Jul 1, 1987·The Proceedings of the Nutrition Society·J M Forbes
Apr 1, 1979·Journal of Dairy Science·R G SasserR H Ross
Apr 1, 1983·Journal of Dairy Science·R L Horst, T A Reinhardt
Jun 1, 1981·Journal of Dairy Science·C A Baile, M A Della-Fera

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