| pubmed-article:327876 | pubmed:abstractText | Holstein-Friesian cows (n=204) were given saline solution or 200 microgram of gonadotropin-releasing hormone (GnRH) by intramuscular injection at 8 to 23 days after parturition. Of cows culled, fewer GnRH-treated cows were culled for infertility, compared with number of cows given saline solution (26 vs 57%; P less than 0.05). Frequency of ovarian follicular cysts was reduced from 15.2% in controls to 5.7% for cows given GnRH (P less than 0.01). The interval to 1st insemination, interval to conception, and inseminations per conception did not differ among saline solution or GnRH-treated cows which remained in the herds. These data provide evidence for reduction in infertility and reproductive disorders in early postpartum dairy cows given GnRH as a prophylactic. | lld:pubmed |
