The Incidence Rates and Relationships Between Endometritis and Ovarian Inactivity of Postpartum Dairy Cows in a Tropical Area
Keywords:
ovarian inactivity, ovarian cyclicityAbstract
The reproductive function of 1SO postpartum dairy cows raised In Tanzania was monitored by weekly gynaecological examinations and progesterone concentration determinations. In cows undergoing normal postpartum, the mean (± s.d.) time from calving to complete uterine Involution and to resumption of normal ovarian cyclicity was 31 ± 12 and 46 ± 17 days, respectively. Incidence rates for endometritis and ovarian inactivity were 35.3 and 32.5 percent, respectively. These rates are being reported for the first time in Tanzania. The occurrence of ovarian inactivity was significantly, higher (p, 0.01) in cows with endometritis. The findings implied that endometritis and ovarian inactivity are interrelated, probably through a common causal factor
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