Влияние хвойной энергетической добавки на молочную продуктивность коров

The aim of the research was to study the influence of coniferous energy additives on milk productivity of the cows in Krasnoyarsk Region. Scientific and economic experiment to determine the optimal level of coniferous energy supplement in the diets of deep-bed and new-bed cows was conducted on four groups of black-and-motley cows, 10 heads in each. The studies were conducted in the conditions of the Federal state unitary enterprise "Mikhailovskoe" Uzhur district of Krasnoyarsk Region and the Chair of Animal Science and TPPI of the Institute of Applied Biotechnology and Veterinary Medicine. The first control group was formed from the cows that were fed with the feed of their own production, included in the farm diet, balanced by the main elements of nutrition, according to detailed standards of VNIIZH. The cows of experimental groups, in addition to the main diet, received coniferous energy supplement as the part of concentrated feed. The feed mix consisted of silage of perennial grasses - 29.47 %, haylage from cereals and legumes- 31.18 %, alfalfa hay - 5.63 %, soy cake - 3.83 %, wheat dert - 8.17 %, barley dert - 9.23 %, premix -%, chalk - 0.55 %, salt - 0.30 %.It was found that the use of feed additives in the diet of cows contributed to better feed consumption by the animals of the second and third experimental groups (the concentration of exchange energy was 11.26-11.44 MJ/kg). The cows of experimental groups were superior to their peers from the control group, both in terms of the amount of milk produced per day (0.6-6.8), and in general for the experimental period (56-676 kg) at P function show_eabstract() { $('#eabstract1').hide(); $('#eabstract2').show(); $('#eabstract_expand').hide(); }