The article presents the results of the analysis of the fatty acid composition of blood lipids of lambs of different genotypes in ontogenesis. Using PCR-PDRF, the specificity of the allelic spectrum of genes that control growth and development – GH; CAST, expressed in different frequencies of both alleles and genotypes, was established.

As indicators associated with the precocity of sheep, the following are considered: pedigree, the direction of productivity, the level of growth, early fat deposition in the body, feed costs for production, body types of animals, protein-quality indicator (PQI).

The article presents the results of the study of clinical, physiological and hematological parameters of the blood of Nubian goats and their relationship with milk productivity and the number of lactation.

The article presents the results of the analysis of the fatty acid composition of the lipids of the muscle tissue of sheep of different genotypes of the Stavropol breed at the age of 8 months. The polymorphism of the calpastatin CAST gene was determined using PCR-PDRF.

The article presents the results of the slaughter of Caucasian sheep born in the number of singles and twins in the year of their birth.

The article presents data on the weight and linear growth of young goats of the Zaanen breed bred in the conditions of the Akmola region of Kazakhstan.

The analysis of the dynamics of meat production of different types of domestic animals in the world and in Russia over the past 20 years is given.

It is noted that in the total production of meat of all types, the share of beef, pork and lamb is decreasing, and poultry meat is significantly increasing.

The article presents the indicators of slaughter, morphological and chemical composition of lamb meat obtained from industrial crossing of Volgograd breed queens with sheep breeds: Poll Dorset, Australian meat merino, North Caucasian meat-wool, Suffolk, Ile-de-France and Merinoland.

The article considers: the dynamics of live weight from birth to 6 months of age and the indicators of slaughter of sheep of different genotypes at the age of 6 months.

The article considers the indicators of live weight and shearing of wool of sheep-producers and queens of different colors of the Kazakh fat-tailed sheep breed.

The article presents data on the change in the tone of different types of wool fibers along the length of the fiber in different sex and age groups of the Tajik wool breed of goats. It is established that the tone of the same fibers is not the same throughout their length: the decrease in tone occurs from the top to the base of the fiber, the greatest thinning occurs in the winter season, which indicates insufficient energy consumption of feed by goats during this period.

Changes in the live weight of goats aged from 3 to 6 months are analyzed with the introduction of the drug “Melapol”, which contains melatonin-the hormone of the pineal gland.

The results of the use of chickpeas of the Privo1 variety in the rations of lactating goats are presented. The inclusion of chickpea grains in the composition of BVMC in the amount of 30.0% by weight provides an increase in the milk productivity and quality of milk of goats of the Zaanen breed.

On model fistula sheep, the effect of feeding a form of choline “protected” from the indirect effects of symbiotic microflora as a source of methylating agents on pregastric digestion, digestibility, and use of nutrients of feed in the body was studied. An increase in the amount of digested nutrients of feed, an improvement in the indicators of carbohydrate-fat and protein metabolism in the body of animals receiving choline was established, which gives grounds for its use in sheep breeding.

The article is devoted to the study of the content of heavy metals (lead and cadmium) in the liver and kidneys of young goats of the Russian breed in the zone of technogenic pollution. It is determined that the content of toxic elements in the studied organs increases with age.

The article presents data on the effect of feed additives based on the preparations “Yoddar-Zn” and “DAFS-25”on meat productivity and chemical composition of meat carcasses of edilbaev breed of sheep.

The article discusses the symbolic meanings of sheep and goats in heraldry and how heraldic material with symbols of sheep and goats convey various philosophical concepts and the meaning of human values.