Reproductive Performance of Primiparous-Sows and Multiparous-Sows Treated with P.G.600
2012
Synchronous induction of estrus for early breeding of gilts would have numerous practical and research applications.Gilts and sows were treated with a combination of receive either a combination of 400 IU of pregnant mare’s serumgonadotropin with 200 IU of hCG (PG 600®). Experiments were performed on 17 primiparous-sows and 15multiparous-sows, both belonging to the great white breed. Following treatment with PG 600, 86.66% primiparoussowsand 64.7% multiparous-sows entered in heat and they were artificially inseminated. Proportion of femalesdiagnosed pregnant at ultrasound performed at 56 days after artificial insemination was 81.8% at primiparous-sowsand 76.92% at multiparous-sows. Consequently, the efficacy of P.G. 600 is different in the two categories of female.
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