Using of nonreplaceable amino acids and metabolizable energy of mixed feeds needed for the synthesis of muscle and fat tissue of young pigs of different genotypes

• Published in: Зоотехническая наука Беларуси : сборник научных трудов Vol. 47; pp. 40 - 47
• Main Authors: Golushko, V.M, Roshchin, V.A, Linkevich, S.A, Golushko, A.V, Shatskij, M.A., National Academy of Sciences. Scientific and Practical Center of Animal Breeding (Belarus)
• Format: Journal Article
• Language: Russian
• Published: 2012
• Subjects: ACIDE AMINA; AECHANGE D'A©NERGIE; ALIMENT COMPOSA© POUR ANIMAUX; AMINO ACIDS; AMINOAICIDOS; ANIMALES JAіVENES; BA©LARUS; BELARUS; CERDO; COMPOUND FEEDS; CORPS GRAS; ENERGY EXCHANGE; FATS; GA©NOTYPE; GENOTIPOS; GENOTYPES; GRASAS; http://www.fao.org/aos/agrovoc#c_1796; http://www.fao.org/aos/agrovoc#c_2568; http://www.fao.org/aos/agrovoc#c_2816; http://www.fao.org/aos/agrovoc#c_3225; http://www.fao.org/aos/agrovoc#c_33237; http://www.fao.org/aos/agrovoc#c_342; http://www.fao.org/aos/agrovoc#c_5003; http://www.fao.org/aos/agrovoc#c_5872; http://www.fao.org/aos/agrovoc#c_7555; http://www.fao.org/aos/agrovoc#c_8489; INTERCAMBIO DE ENERGA­A; JEUNE ANIMAL; LECHAіN; MAєSCULOS; MUSCLE; MUSCLES; PIENSOS COMPUESTOS; PIGLETS; PORCELET; PORCIN; SWINE; YOUNG ANIMALS
• ISSN: 0134-9732

In the conditions of farms of the Republic of Belarus there was identified the cost of essential and nonessential amino acids and metabolizable energy of mixed fodders on building of muscle and adipose tissues of growing pigs of different genotypes. Researches helped to identify breed differences of certain food nutrients (including crude protein and essential amino acids) in the consumption and use effect on the growth. In the physiological experiment when balancing the diets with synthetic amino acids and the constant exchange of energy a significant increase of 6,5% (P less than 0,05) of average daily deposits of protein was determined per unit of metabolic live weight of pigs. Amino acid composition of the most valuable parts of carcasses of different genotypes is relatively constant and can be used as a reference when developing a model of energy and amino acid supply for young pigs. Energy conversion rate of feed products from animals into meat and fat products of animals of large white breed was 0,719, while the Belarusian meaty breed – 0,730. Thus, the higher the meatiness of animals the less metabolizable energy and amino acids are used by the body for the synthesis of muscle body weight.