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- Rojas Canadas, E., et al. Show all 6 Authors
- Theriogenology 2019 v.127 pp. 130-136
- anestrus; anovulation; body condition; breeding; breeding season; calving; conception; corpus luteum; dairy cows; dairy herds; estrus; farms; gonadotropin-releasing hormone; human chorionic gonadotropin; insemination; lactation; milk; pregnancy; reproductive performance; uterus; Ireland
- ... The objective of the present study was to assess the effects on ovulation and reproductive performance of a single injection of either GnRH or hCG applied 9 days before the start of the seasonal breeding period in anovulatory anoestrus cows compared with a 7-day progesterone-Ovsynch protocol. The study was conducted on four grass-based seasonal calving dairy herds in Ireland. The total number of c ...