Efficiency of using biogenic preparations in protocols for inducing sexual heat in cows

Abstract

This article presents the results of a scientific and practical experiment on the use of Magestrofan for oestrus synchronization in cows, both independently and in combination with biogenic preparations of plant and animal origin, developed using previously patented technologies. The findings indicate that the first experimental group, where cows received Magestrofan along with injections of a biogenic plant-based preparation at a dose of 25.0 ml, showed a pregnancy rate reaching 75.0%, with an insemination index of 1.33. In the second experimental group, where Magestrofan was combined with a biogenic preparation derived from secondcategory by-products, the pregnancy rate was 69.2%, with an insemination index of 1.44. In the control group, where only Magestrofan was used, the pregnancy rate was 52.6%, and the insemination index was 1.90. The most effective oestrus synchronization protocol in the experimental groups was two Magestrofan injections, administered 10 days apart, in combination with the plant-based biogenic preparation, which led to an 8.4% increase in pregnancy rate and a 7.6% reduction in the insemination index. The economic efficiency of using biogenic preparations of plant and animal origin in oestrus synchronization protocols with Magestrofan averaged 9.64 roubles per 1 rouble of expenses across the experimental groups.