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Prenatal Mortality in the Bovine between Pregnancy Diagnosis at 34–50 Days Post-Insemination and Parturition¹

Department of Dairy Husbandry, University of Wisconsin, Madison

ABSTRACT

Prenatal mortality was observed in 44 out of 690 females that were diagnosed pregnant at 34–50 days post-insemination. The fetal mortality between pregnancy diagnosis and parturition was 6.38% with a standard deviation of 1.87. During gestation the variation in loss of pregnancy between 30-day periods was not significant (P > 0.05).

¹ Published with the approval of the Director of the Wisconsin Agricultural Experiment Station.

² Agent of the Bureau of Dairy Industry. These data were taken from a thesis presented by the senior author to the Graduate School of the University of Wisconsin in partial fulfillment of the requirement for a Master of Science Degree.