Cervical versus laparoscopic AI of goats after PMSG injection at or 48 hours before CIDR removal


R.W. Moore, C.M. Miller, D.R.H. Hall and B.W. Dow

Whatawhata Research Centre, Ministry of Agriculture and Fisheries, Hamilton and Ruakura Agricultural Centre, Ministry of Agriculture and Fishers, Hamilton

Proceedings of the New Zealand Society of Animal Production. 1988, 48: 69-70

Feral does were used for a 2 x3 x 2 factorial, with 2 types of insemination (cervical v laparoscopic), 3 pregnant mare serum gonadotrophin (PMSG) levels (no PMSG, 150 i.u. 2 d before controlled internal drug releaser (CIDR) removal and 150 i.u. at CIDR removal) and 2 sperm dose rates (50 v 100 million sperm). The semen, obtained from 9 Cashmere bucks, was frozen in straws containing 100 million sperm. Three operators inseminated 171 does 2 d after CIDR removal. The overall kidding rate from cervical insemination was 24% and from laparoscopic was 50%. There was no effect of PMSG, sperm dose rate, buck or inseminator on the percentage of does kidding.

Keywords: NZSAPAB; Feral goats; AI; cervical; laparoscopic; frozen-thawed semen; CIDR; PMSG


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Last Updated 18-03-1997