D. G. Pogosyan, D. V. Zakharov
Penza State Agrarian University, Penza, Russia
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Volume 25 No. 2
Date of paper submission: 29.07.2024, date of review: 06.11.2024, date of acceptance: 29.11.2024.
Published: 02/28/2025
Abstract. The purpose of the research is to determine the optimal level of crude protein content in full-fledged compound feeds with a dry type of feeding for young rabbits of meat breeds with intensive fattening in industrial farms, which allows to increase the meat productivity of animals. Research methods. A scientific and production experiment was conducted on four groups of young meat breeds of rabbits (Belyy velikan × Pannon) from 35 to 90 days of age, staffed in 4 groups. The differences between the groups consisted in the use of compound feeds with different levels of crude protein. The rabbits of the control group were fed compound feed with a protein level of 19 %. Animals of the 1st, 2nd and 3rd experimental groups consumed compound feeds with a crude protea content at the level of 16,5, 18 and 20 %. The studied indicators are: dynamics of live weight, absolute and average daily growth, safety of young animals, feed conversion, slaughter indicators. Results. With intensive fattening of young rabbits, the optimal content of crude protein in full-fledged granular compound feeds is considered to be at the level of 19 %, which allows increasing the average daily increase in live weight of young animals to 42,6 g or by 8,2–16,8 % with live weight at the end of fattening at the age of 90 days – 3269 g. At the same time, the greatest difference in the intensity of growth of baby rabbits in favor of the control group was noted at the age of 35 to 70 days. The most effective use of nutrients in the animal body was also noted in the control group, as evidenced by a decrease in feed conversion to 3,42, which was lower by 0,36-0,94 units in comparison with experimental groups. Feeding the fed rabbits with a combo feed with an optimal protein content of 19 % did not adversely affect the safety of the young and led to an increase in the slaughter yield from 50,6 to 52,2 %. Scientific novelty. For the first time, a scientifically based, optimal level of crude protein content has been established in a full-fledged compound feed intended for intensive fattening of young rabbits of meat breeds with a dry type of feeding in industrial rabbit farms.
Keywords: rabbits, fattening, young animals, compound feed, crude protein, meat productivity, live weight, safety, feed conversion, slaughter yield
For citation: Pogosyan D. G., Zakharov D. V. Meat productivity of young rabbits on fattening with different levels of protein in full-fledged compound feeds. Agrarian Bulletin of the Urals. 2025; 25 (02): 278‒289. https://doi.org/10.32417/1997-4868-2025-25-02-278-289(In Russ.)
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