| Popis: |
Feed is one of the most important factors in increasing the productivity of animals. Providing livestock with high-quality bulky feed is the main task of feed production. One of the most important problems of modern agricultural production in the Udmurt Republic remains the increase in feed production, improvement of their quality and energy saturation. The purpose of the research was to increase the efficiency of milk production by using alfalfa and corn silage prepared with various biological preservatives in the rations of cows. Scientific and economic experiment has been carried out in JSC “Voskhod” in the Sharkansky district in the Udmurt Republic, a breeding farm of Kholmogorskaya breed of cattle. An important scientific and practical task to increase the productivity and improve the reproductive traits of cows due to silage from alfalfa and corn harvested using biological preservatives Laxil, Bioamide-3, Optima-Bio, containing various strains of lactic acid and propionic acid bacteria has been considered in the paper. Research has been conducted on the comparative study of the effectiveness of biological preservatives on the preservation of feed nutrients under the conditions of the Udmurt Republic. Their effect on milk productivity, quality and technological properties of milk has been studied. It has been found as a result of the conducted studies that the use of biological preservatives Laxil, Bioamide-3, Optima-Bio when silage making had a positive effect on the increase in milk productivity of cows during the increasing the milk yield period and for 305 days of lactation. Thus, the use of silage prepared with preservatives in rations increases the milk yield for 305 days of lactation by 5,6–7,6 %. When feeding silage with preservatives the profitability of milk production has been increased. The most effective preservative was Bioamide-3. |
