title: An investigation of the parameters which determine the fertility of a cattle population and of some factors which influence these parameters.
abstract: The investigation consisted of the analysis of the records of four A.I. centers, Apart from a calculation of the average value of the parameters which determine the fertility of a cattle population (the calving rate, the number of inseminations per conception, and the interval from parturition to conception), the investigation covered also the influence on these parameters of respectively, the age of the inseminated cow, the month in which insemination took place, the interval from parturition to first insemination, the course of parturition, the retention or non-retention of the placenta, and the size of the herd.
mesh_terms: D000822:Animal Husbandry; D000818:Animals; D002417:Cattle; D005298:Fertility; D007315:Insemination, Artificial / Q000662:veterinary*