Using sheep selection to improve the nutritional value of lambmeat

Relevance. The article provides a justification for the use of sheep selection taking into account intra-breed type Prekos ewes in purebred breeding and crossing with producers semi-fine wool breeds Romney-Marsh Kuibyshevskaya to improve biological usefulness meat offspring. Methods : scientific economic experiment different options, productive Precos breed. Results. presents results study on influence composition lambmeat, increasing quality and, thus, efficiency its production. It was found that content water crossbred animalswas lower compared Precos. There is rams obtained from meat-wool type, both animals. In terms protein meat, there an advantage wool-meat queens. hip bran animals crossbreeds Kuibyshev breed, this superiority 1.1% (Р > 0.95), lumbar crossbreeds, difference 1.6% 0.95). Mutton offspring characterized by significantly high essential amino acids threanine, lysine, leucine, phenylanin isoleucine comparison sheep. A significant also established interchangeable — oxyproline, serine, tyrosine, proline, glycine, aspartic glutamic acid, cystine analin.