Productivity of steers of different genotypes: forecast based on interior indicators

• Autor(a) principal: Slozhenkina,M.I.
• Data de Publicação: 2020
• Outros Autores: Gorlov,I.F., Shakhbazova,O.P., Radjabov,R.G., Ivanova,N.V., Mosolova,D.A., Knyazhechenko,O.A., Poorghasemi,M.R., Seidavi,A.R.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Arquivo brasileiro de medicina veterinária e zootecnia (Online)
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000602279
• topic: live weight; beef cattle; productivity; breed; steers; genotypes

ABSTRACT Meat productivity and quality of beef are determined by a number of factors, including pedigree traits of animals. Meat productivity is closely related to the biological patterns of their growth and development. Considering the patterns that affect meat productivity enables effective growing and fattening of livestock and obtaining commercially viable beef. To predict economically useful traits in beef cattle breeding, interior indicators can be used, as they reflect the metabolic picture of the animal’s body. The research studies in physiology and biochemistry of livestock aimed at revealing the persistent mechanisms of a growing animal organism make them relevant. The article identifies a correlation between the interior indicators and the fattening indicators of three experimental groups of steers. The main forecasting factors of meat productivity indicators have been substantiated. Regression coefficients have been found and show how much the live weight varies depending on the determining factors. Meat productivity predicting procedures have been modeled with respect to the protein content in blood serum.