Application of the feed concentrate "Cowfresh" in newly-calved cows
Recovery of highly productive animals after calving is one of the key factors determining future milk productivity. The feed concentrate "Cowfresh" inclusion in cow diet for a short period at the beginning of lactation had a positive effect on the milking intensity and milk quality indicators. The research was conducted in 2020 in the conditions of the livestock complex "MilANKa" (Gribskoye, Amur region). For the experiments newly-calved red-and-white cows from the first to the third lactation were selected according to the analogues pair's principle andassigned to three experimental groups and one control group, 10 animals each. The purpose of the scientific and economic experiment was to substantiate and study the effect on further productivity of various dosages of the feed concentrate "Cowfresh" in newly-calved cows. The experiment lasted 110 days from the moment of cow calving and consisted of two stages. The first stage is the feed an aqueous solution of the feed concentrate "Cowfresh" in various dosages to different experimental groups for 10 days once a day, and the second stage is a productivity monitoring for 100 days. As a result of the experiment, the positive effect of the feed concentrate "Cowfresh" on cow recovery rate after calving and cow productivity during milking period was established. The most optimal dosage was 200 g of the feed concentrate "Cowfresh" per 100 kg of body weight. At the same time, the gross milk yield for 100 days of lactation in the second experimental group was 2 497 kg of natural fat milk, which is 22.4 % more than the control group indicator. A further dose increase of the feed concentrate "Cowfresh" does not contribute to a significant rise in productivity.