Abstract
The objective of the research was to study the effectiveness of inclusion of Camelina cake, which belongs to low-glucosinolate varieties, in the diets instead of sunflower cake on the productivity of fattened ram lambs. According to the results of a laboratory study, compared with sunflower cake, Camelina cake had a higher content of dry and organic matter, “crude” fat, “crude” fiber, nitrogen-free extractives, and there were practically no differences in “crude” protein. Scientific and economic experience was organized with the use of ram lambs of the Volgogradskaya breed. Physiological studies were carried out in conjunction with the scientific and economic experience with the use of animals in this experiment. At the end of the experiment, at the age of 8 months, the ram lambs of the experimental group, using Camelina seed cake in the main diet, had a higher average live weight by 1.43 % than in the control, when using sunflower cake in the diet. In physiological studies, it was found that the animals in the experimental group digested and used the nutrients of the diet better than the young animals from the control group. Blood counts of both groups of ram lambs were normal. Control slaughter of sheep, conducted on the basis of research, showed that on average in the experimental group, the weight indicators increased: pre-slaughter, hot carcass, internal fat, slaughter, and slaughter yield, respectively, by 1.52; 1.69; 2.63; 1.74 and 0.10% than in the control. In terms of profitability, fattening animals in the experimental group was 7.8% more efficient than in the control group.
Highlights
The main period of the experiment lasted one hundred and twenty days and the animals of the control group were fed with sunflower cake as part of the main diet; the experimental group was fed with Camelina cake as part of the main diet instead of sunflower cake
Data describing the qualitative composition of the tested feed by chemical composition indicate that the content of dry matter in the cake produced from Camelina seeds was 3.1% higher; "drude" fat – 0.5; "u" fiber – 0.1; nitrogen–free extractives - 3.1% higher than in sunflower
Organic matter was contained in the analyzed feeds, respectively, 87.2 and 83.6 in favor of Camelina cake with a difference of 3.6 %
Summary
To further increase the efficiency of obtaining products in animal husbandry, it is necessary to expand the range of feeds and additives, the use of which makes it possible to more fully realize the genetically determined productive qualities of farm animals and contributes to the improvement of production indicators [15, 16, 19]. By-products that are processed into oil-plant oil by pressing - cake are affordable and valuable organic animal feed The use of these feeds contributes to the replenishment of protein in the diet in case of its lack; improving the productive qualities of animals and, which is very important, the efficiency of obtaining livestock products
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