Rapeseed oil and cake in the rations of broiler chickens in the conditions of the Tomsk region

The search for new types of feed to increase the final live weight and reduce the cost of feed for growing remains the main issue at the current stage of development of broiler production. The article presents the results of a study of the chemical composition and nutritional value of rapeseed cake, which receives special attention as the main component of compound feed in the finishing period of poultry fattening. The purpose of this work was to study the fattening and meat qualities of poultry when replacing sunflower meal, sunflower oil and meat meal in the diet with rapeseed cake, rapeseed oil and soybean meal in the same quantities. The quality of the feed eaten by the poultry has a great impact on the growth and feed costs indicators. According to the results of chemical studies it was found that the energy and protein nutritional value of rapeseed cake is close to soybean cake. The best results were obtained with the inclusion of rapeseed cake and oil in the compound feed. Thus, the viability of broiler chickens increased by 5.0%; live weight increased by 290 g. It was possible to achieve a reduction in feed costs per 1 kg of gain by 0.34 units and an increase in the productivity index by 2.1%. An important indicator of the quality of meat productivity of broiler chickens is the weight and yield of the edible part of the carcass. Thus, the mass of the gutted carcass was higher in the experimental group by 8.58% and the edible parts of the broiler carcass of the experimental group were higher by 122 g. The use of rapeseed cake and oil in the compound feed contributed to a decrease in the cost of 1 kg of live weight gain of broiler chickens and an increase in profit by 16.02% and an increase in the profitability of broiler meat production by 4.49%.

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