Gaganov AP, Zverkova ZN

DOI: 10.33284/2658-3135-102-4-238

UDC636.5:636.085.55

The effect of mixed feeds containing various levels of rape cake on the effectiveness of their use

by broiler chickens

Anatoly P Gaganov, Zinaida N Zverkova

Federal Scientific Center of Fodder Production and Agroecology named after VR Williams

(Moscow region, Lobnya, Russia)

Summary. Studies on the use of mixed feeds containing rape cake have been carried out on broiler chickens of Hubbard F-15 crosses were performeed. Oilcake was prepared from rapeseed cultivars Moscow-area selection of Federal Scientific Center of Fodder Production and Agroecology named after VR Williams and contained 38.3% of crude protein, 12.0% of crude fiber and 11.8% of fat. Chickens were grown in fragments of a cell battery from day old. The duration of the experiment is 35 days. The control group received soybean meal. In experimental versions, rapeseed cake was included in the feed in the amount of 5.0; 10.0; 12.5 and 15.0% according to weight. It has been established that after 5 and 10% rape cake is included in feed composition, nitrogen utilization improves, live weight gain increases by 1.6 and 2.0%, feed costs are reduced per 1 kg of live weight gain. A further increase in rape cake in the composition of animal feed to 12.5 and 15.0% led to a decrease in the digestibility of nutrients, a decrease in the use of nitrogen, and a decrease in live weight gain by 4.8 and 7.6%. When the feed content of rape cake is 15.0%, feed costs per 1 kg of live weight gain increases.

Key words: broiler chickens, rape cake, mixed fodder, digestibility of nutrients, live weight gain.

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Gaganov Anatoly Petrovich, Cand. Sci. (Agr.), Senior Researcher, Laboratory of Zootechnical Assessment and Standardization of Feed, Federal Scientific Center of Fodder Production and Agroecology named after VR Williams, 141055, Moscow Region, Russia, Lobnya, Building 1, Science Town, e-mail: gaganovvnii@mail.ru

Zverkova Zinaida Nikolaevna, Cand. Sci. (Agr.), Senior Researcher, Laboratory for Zootechnical Assessment and Standardization of Feed, Federal Scientific Center of Fodder Production and Agroecology named after VR Williams, 141055, Moscow Region, Russia, Lobnya, Building 1, Science Town, e-mail: z.zverkova@mail.ru

Received: 25 November 2019; Accepted: 16 December 2019;Published: 31 December 2019

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