Production efficiency of milk at different ways of cows keeping

In order to identify the most cost-effective methods of keeping dairy cattle at commercial milk production in the conditions of Eastern Siberia, the peculiarities of milk production at fastened and loose-method of keeping cattle were studied. In the studies conducted in 2012-2015 animal breeding, mathematical and statistical research methods were used; biometric evaluation of the data was conducted. Climatic conditions in the region are quite extreme, most of the year the cattle are in stall conditions. The material on studying the influence of fastened (group 1) and loose on deep straw bedding (group 2) methods of keeping on milk production, reproductive abilities and the reasons for cows’ leaving of in the conditions of Krasnoyarsk Region was given in the study. So, milk yields in 305 days in lactation and lactation in general in cows at fastened method of keeping was higher than in cows with loose-method keeping 44 and 274 kg, respectively. Despite it there was atendency in the increase of the highest daily milk yield of the cows in the 2-nd group compared with the 1-st group for 0...