DYNAMICS OF CHANGES COWS FERTILITY LEVEL FROM USING BOLUSES

Abstract

This article presents the results of study in using boluses in the northern region of Kazakhstan in order to improve and change the fertility status of Simmental cows. The main elements and effectiveness of using digital technologies, the smaXtec bolus system are viewed. To control the indicators of the Simmental breed reproductive function , a series of experiments were carried out before and after the introduction of boluses into the rumen. The timeliness of detecting heatwave and inflammatory ones increased from using the system on a dairy farm, the onset of heat or cold stress, and determining the time of calving increased. the cows reproductive functions improved: the insemination index decreased to 1.3, the service period duration - to 102 days, the coefficient of reproductive ability decreased to 0.9. As a result, cows with boluses had milk production above the herd average.