Meat productivity and interior features of the different genotypes of the rams Edilbaev breed

Abstract

One of the key factors ensuring the increase in sheep production in future is the development of intensive reproduction of the herd. The article presents the results of an experiment that helped study and give comparative characteristics for the meat productivity and natural resistance of the pedigree Edilbay sheep breed in conditions of a pedigree reproducer in 2018-2019. The young stocks of original and new types were studied to assess their interior traits, establish the direction and degree of correlation between the biochemical blood parameters and meat productivity of young sheep, as well as determine indices reflecting the immune status of organisms of the experimental sheep. When starting the test, the live weight of animals of the pure and pedigree types were almost the same, while when finishing the experiment at the age of 12 months, animals in Group II exceeded animals in Group I by 4.3 kg (5.8%, P<0.01). The best average daily gain of experimental sheep was also in Group II, i.e., 167 g, which was higher than in Group I by 9.1% (P<0.01). Consequently, the rams of new type had the highest growth rate. The data of the control slaughter showed that both experimental groups had high meat productivity. The analysis of natural resistance indicators of small ruminants of various types and their relationship with productive qualities in different climatic zones have also shown the need to use different integral indicators to assess the immune status in further breeding of animals. The analysis of natural resistance indicators of small ruminants of various types and their relation with productive qualities in different climatic zones has suggested that there is a need to use several markers to assess the immune status for further sheep breeding.

Ways of Increasing the Efficiency of Sheep Breeding in the Russian Federation

“…A new meat-fur type of sheep has been created based on meat-wool sheep of the Romney Marsh type and Romanov breed sheep with increased viability and improved meat qualities along with the preservation of high fertility, polyestricity and high fur coat qualities inherent in sheep of the Romanov breed. Based on Volgograd sheep and Suffolk beef rams, work is underway to create a meat type with increased early maturity and meat qualities [5,6].…”

Scientific support for the innovative development of sheep breeding in the Russian Federation

“…At the present stage, the main task of the industry is the intensification of production, which is achieved by increasing the productivity of animals through effective selection work, creating a solid forage base and introducing advanced technologies for the manufacture of sheep products [2].…”