Modern standards of energy and amino-acid nutrition of replacement gilts

• Published in: Зоотехническая наука Беларуси : сборник научных трудов Vol. 45; pp. 57 - 66
• Main Authors: Golushko, V.M, Roshchin, V.A, Linkevich, S.A., National Academy of Sciences. Scientific and Practical Center of Animal Breeding (Belarus), Askerko, V.V., Unitary Enterprise ''Borisovsky Kombinat Khleboproduktov', Borisov (Belarus), Golushko, A.V, Shatskij, M.A., National Academy of Sciences. Scientific and Practical Center of Animal Breeding (Belarus)
• Format: Journal Article
• Language: Russian
• Published: 2010
• Subjects: ACIDE AMINA; ALIMENT COMPOSA© POUR ANIMAUX; ALIMENTACIAіN DE LOS ANIMALES; ALIMENTATION DES ANIMAUX; AMINO ACIDS; AMINOAICIDOS; ANIMAL FEEDING; APPLICATION RATES; BA©LARUS; BELARUS; CERDO; COMPOUND FEEDS; DOSE D'APPLICATION; DOSIS DE APLICACIAіN; ENERGY VALUE; GILTS; http://www.fao.org/aos/agrovoc#c_10613; http://www.fao.org/aos/agrovoc#c_11152; http://www.fao.org/aos/agrovoc#c_16113; http://www.fao.org/aos/agrovoc#c_1796; http://www.fao.org/aos/agrovoc#c_33237; http://www.fao.org/aos/agrovoc#c_342; http://www.fao.org/aos/agrovoc#c_429; http://www.fao.org/aos/agrovoc#c_6513; http://www.fao.org/aos/agrovoc#c_7555; INVESTIGACIAіN; PIENSOS COMPUESTOS; PORCIN; RECHERCHE; SWINE; VALEUR A©NERGETIQUE; VALOR ENERGA©TICO
• ISSN: 0134-9732

In the conditions of the Republic of Belarus there were determined the optimal standards of requirements of replacement gilts in metabolizable energy and nonreplaceable amino acids, which could supply their high productivity and promoted the lowering of consumption of high-protein fodders for swine breeding. Research results showed that 20-30% increased ratio of metabolizable energy and nonreplaceable amino acids (including available lysine) in mixed fodders made it possible to increase animal growth rate on 9.6% (P less than 0.05) and reduced terms of animal pedigree usage from 277 up to 223 days. For the replacement gilts with live weight from 40 up to 80 kg the optimal level of concentration of metabolizable energy per 1 kg of mixed fodder with natural (14%) humidity was no less than 12.5 mJ, crude protein – 150 g, lysine – 8.7 g (including available (digestible) – 6.6 g), methionine + cysteine – 5.0 g, threonine – 5.1 g, triptophane – 1.5 g, valine – 5.5 g, isoleucine – 4.5 g. For the replacement gilts with live weight from 81 up to 120 kg the optimal level of concentration of metabolizable energy per 1 kg of mixed fodder with natural (14%) humidity was no less than 11.5 mJ, crude protein – 140 g, lysine – 7,0 g (including available (digestible) – 5.8 g), methionine + cysteine – 4.2 g, threonine – 4.5 g, triptophane – 1.5 g, valine – 4.8 g, isoleucine – 3.9 g.