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Ruminant Nutrition and Forage Utilization
Asian-Australasian Journal of Animal Sciences 1989;2(4): 571-574.
DOI: https://doi.org/10.5713/ajas.1989.571    Published online December 1, 1989.
Successive induction of lactation in cattle
Y. P. S. Dabas, S. C. Sud
Five multiparous and four nulliparous cross-bred cows were administered s/c with oestradiol-17棺 and progesterone 0.1 mg and 0.25 mg/kg. b.w./day for 7 days and 2 mg s/c twice daily of reserpine on days 9 to 12. Lactation was successfully induced in all animals for periods from 258 to 476 days. All animals were dried off for a minimum of 2 months. Subsequently, they were injected s/c with oestradiol valerate and hydroxyprogesterone caproate at 0.1 mg and 0.25 mg/kg. b.w./day on days 1 to 3 and 2 mg twice daily of reserpine on days 8 to 11. Lactation was successfully reinduced in all the cows for a period varying from 228 to 426 days.
Keywords: Cows; Induced Lactation; Oestradiol; Progesterone; Reserpine

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