The impact of silage prepared with biological preservatives on biochemical status of the cows’ blood and their reproductive functions

The research was aimed at comparative study of the effectiveness of Laxil and Bioamid-3 preservatives in ensilaging of specific forage crop. The research problems were to study biochemical status of cows’ blood against the background of feeding diets, which included silage harvested with various biological preservatives; to establish the impact of studied silage on the main indicators of reproductive functions of cows. The research was carried out in JSC”Voskhod”, Sharkansk district of the Udmurt Republic. Alfalfa was ensilaged with application of biological preservatives Laxil and Bioamide-3, one option was taken without preservatives. Productive effect was studied on three groups of cows selected by couples’ analogue method. Biochemical status was determined by taking blood after 30 and 60 days from the beginning of feeding the studied diets. The protein content in blood serum at the first analysis was within the reference values, but closer to the lower limit. Hypoglycemia was detected in the blood of cows of all groups...