Validation of the relationships of methionine, threonine, tryptophan and valine amino acids with the digestible lysine in the ideal protein in feedings for lactating sows

Revista Brasileira de Zootecnia

Silva, Francisco Carlos de Oliveira¹  Abreu, Márvio Lobão Teixeira de⁴  Haese, Douglas²  Donzele, Juarez Lopes³  Oliveira, Rita Flávia Miranda de³  Saraiva, Alysson³  Kill, João Luís²  Puppo, Débora Del² 

[1] EPAMIG;UVV;UFV;UFPI

关键词: estrus;    fat;    piglets;    protein;    ration;    weight    Introdução Atualmente;    as matrizes suínas são mais magras;    mais produtivas e possuem menor capacidade de consumo voluntário de ração;   

DOI  :  10.1590/S1516-35982010000700015

学科分类：兽医学

来源: Universidade Federal de Vicosa

【 摘 要 】

This experiment aimed at validating the relationship between digestible amino acids with the digestible lysine proposed on the basis of the ideal protein concept. This experiment used 120 lactating sows distributed in a complete randomized block design with six treatments and 20 repetitions and one sow per experimental unity. The diets were formulated based on a reference diet - which contained 19.5% of crude protein (CP) and 0.95% of digestible lysine supplemented with digestible methionine, threonine, tryptophan and/or valine to meet the ideal protein based determined relationships with digestible lysine. The diets did not change weight loss and variation, thickness and thickness variation of backfat, protein and body protein variation, fat and body fat variation, neither they changed the weaning-estrus interval or milk production of the sows. The relationships between metionine + cistine, threonine, tryptophan, and valine digestible amino acids with digestible lysine based proposed on ideal protein meet the requirements of lactating sows for better reproductive and productive performances.

【 授权许可】

CC BY-NC