Hormonal Induction of Estrus and Cyclicity in Postpartum Anestrus Cows of Bos Indicus of Semi-Arid Region of Rajasthan

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Date
2008
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Department of Animal Reproduction Gynaecology and Obstetrics College of Veterinary and Animal Science Rajasthan Agricultural University, BIKANER-334001
Abstract
Various hormonal regimens were tried to ensue reproductive activity in prolonged postpartum anestrous cows of B. indicus. The cows were assigned as control (no hormonal treatment - inj. N.S. S/c O.D × 7d) and hormonal regimens as T1 (P – IVS – intravaginal sponge impregnated with 1.5 g progesterone for 7d); T2 (P – inj. progesterone – 150 mg s/c O.D × 7d); T3 (PE – inj progesterone – 150 mg s/c O.D × 7 d + inj. estradiol valerate 5 mg i.m. O.D on day 1); T4 (PeCG – inj progesterone – 150 mg s/c O.D × 7 d + inj. eCG – 400 I.U. i.m. O.D on d 7) and T5 (PEeCG – inj progesterone – 150 mg s/c O.D × 7 d + inj. estradiol valerate 5 mg i.m. O.D On d 1 + inj. eCG – 400 I.U. i.m. O.D on d 7).
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