Post-partum anoestrus in dairy cows: a review.
In modern high-yielding dairy herds fertility is of major economic importance. In order to gain maximum profit, calving intervals should not exceed 365 days. The achievement of a 365-day calving interval requires an early resumption of ovarian activity, an excellent oestrus detection, and a high first-service conception rate. Especially the inability to detect oestrus and to mate the cows by 60 to 80 days after calving is a common problem among dairy farmers nowadays. In this article a review is given about the occurrence, causes, treatment, and prevention of post-partum anoestrus in dairy cows.
Opsomer
G
G
Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Belgium.
Mijten
P
P
Coryn
M
M
de Kruif
A
A
D000818:Animals; D001947:Breeding; D002417:Cattle / Q000502:physiology*; D002418:Cattle Diseases / Q000453:epidemiology / Q000503:physiopathology* / Q000517:prevention & control; D005260:Female; D015994:Incidence; D010053:Ovary / Q000502:physiology; D010060:Ovulation / Q000502:physiology*; D010061:Ovulation Detection / Q000379:methods / Q000662:veterinary*; D049590:Postpartum Period; D011247:Pregnancy; D018873:Pregnancy Rate; D012098:Reproduction / Q000502:physiology; D013997:Time Factors; D014599:Uterus / Q000502:physiology