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The problem of finding the most complete protein components that can be used in poultry farming is currently urgent, as the cost of feed in poultry farming reaches 70%. The most popular methods for evaluating nutrient availability in the organism of productive animals are fistula technologies. In this work, the authors used a new technique to evaluate the palatability and nutritional properties of two soybean products in the diet of broiler chickens. The comparative analysis showed that soybean cake (EcoSoy) was the most preferred feed ingredient, increasing trypsin activity by 30.2% and lipase activity by 114% compared to meal in the first postprandial phase (after 60 min). In the second postprandial phase (after 120 min), the differences were not reliable, but a tendency to increase activity was observed in the experimental group (by 17.2%).
The problem of finding the most complete protein components that can be used in poultry farming is currently urgent, as the cost of feed in poultry farming reaches 70%. The most popular methods for evaluating nutrient availability in the organism of productive animals are fistula technologies. In this work, the authors used a new technique to evaluate the palatability and nutritional properties of two soybean products in the diet of broiler chickens. The comparative analysis showed that soybean cake (EcoSoy) was the most preferred feed ingredient, increasing trypsin activity by 30.2% and lipase activity by 114% compared to meal in the first postprandial phase (after 60 min). In the second postprandial phase (after 120 min), the differences were not reliable, but a tendency to increase activity was observed in the experimental group (by 17.2%).
In order to intensify modern poultry farming, close attention is paid to breeds, crosses with high growth potential. The poultry diet should be balanced in terms of metabolic energy and protein due to the inclusion of several ingredients and additives. Specialists of the agro-industrial complex have accumulated a large amount of research on the eff ective use of biologically active drugs in poultry farming. The use of enzyme drugs contributes to an increase in the level of energy nutrition, as well as accelerated growth and development of farm animals and poultry. The purpose of our work was to improve of production traits and hematological parameters in broiler chickens when using diff erent multi enzyme drugs in their diets. A scientifi c and economic experiment was carried out on broiler chickens of the cross Ross 308 under the conditions of a poultry farm of the IP Fitisov G. N., village Ozerny in the Caucasian district of the Krasnodar Territory. The broilers of the 1st control group received wheat and corn compound feed. The following multi enzyme drugs were additionally included in the diet of chickens of the experimental groups: the 2nd experimental group – Natugrain TS 100 g/t of compound feed, the 3rd experimental group – Rovabio Excel AP 50 g/t of compound feed, the 4th experimental group – Ronozim Multigrain 125 g/t of compound feed, the 5th experimental group – Akstra HV 100 g/t of compound feed, 6th experimental group – Akstra HAR 100 g/t of compound feed, 7th experimental group – Hostazim Combi 100 g/t of compound feed, 8th experimental group – Vilzim 20 g/t of compound feed and 9th experimental group – Enzyme Complex 750 g/t compound feed. The conditions of housing and feeding for broiler chickens of the experimental groups were the same and corresponded to the zoo and hygienic requirements for housing and feeding poultry. The use of multi enzyme drugs in compound feed for broiler chickens allowed us to increase live weight by 4,76–13,87 %, reduce expenditures of feed per unit of live weight gain by 4,73–12,43 %. The inclusion of multi enzyme drugs in the formula of compound feed allowed us to improve blood parameters. For example, there was an increase in the number of red blood cells, total protein, calcium, phosphorus and a decrease in the number of white blood cells. Thus, the introduction of multi enzyme drugs into compound feed for broiler chickens had a positive effect on the productive indicators of poultry and also on morphological and biochemical parameters of blood.
Poultry farming in the Russian Federation is one of the key branches of animal husbandry, providing the population with dietary and high-calorie food products such as meat and eggs. In this regard, the production of the maximum amount of competitive high-quality products is possible only under conditions that take into account the biological characteristics of the poultry, its physiological state, the type of productivity and the infl uence of environmental factors on it. The main factor in increasing the productivity of poultry is a rational and balanced feeding system. In the feeding of poultry, the search for new alternative feed sources is promising in the fi eld of feeding. One of such non–traditional feed sources is the product of processing amaranth seeds into oil as amaranth cake. We carried out scientifi c and production experiments at the Research center for the safety and eff ectiveness of feed and additives at the Volgograd State Agrarian University on broiler chickens of the cross Ross 308 and laying hens of the cross Hisex Brown. The poultry of the control group, both in the fi rst and in the second experiments received compound feed with sunfl ower presscake, and in the diet of poultry of the 1st, 2nd and 3rd experimental groups 50, 75 and 100 % sunfl ower presscake was replaced with amaranth presscake. Replacing sunfl ower presscake with amaranth presscake in compound feed for broiler chickens allowed to increase the live weight by 2,15–5,26 %, increase the slaughter yield of carcasses by 0,15 -0,29 abs.% and reduce feed expenditures per unit of live weight gain by 2,08–4,98 %. The inclusion of amaranth presscake instead of sunfl ower presscake in the formula of compound feed for laying hens allowed to increase the number of laid eggs by 0,52–1,54 % and their weight by 0,50–1,45 %, while there was a decrease in the expenditures of feed for 10 pieces of eggs and 1 kg of egg mass by 0,75–1,50 % and 0,93–2,80 %. Thus, the replacement of sunfl ower presscake with amaranth presscake in compound feed for laying hens and broiler chickens had a positive infl uence on the productive parameters of poultry.
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