动物营养学报2011，Vol.23Issue(11)：2009-2015,7.DOI:10.3969/j.issn.1006-267x.2011.11.023
贵州香猪7～25kg生长阶段的氨基酸沉积规律与需要量的研究
Deposition and Requirements of Amino Acids in Guizhou Xiang Pigs for the 7 to 25 kg Growth Period
摘要
Abstract
This experiment was conducted to ascertain the deposition and requirements of amino acids in Guizhou Xiang pigs for the 7 to 25 kg growth period. Thirty-four pigs (male: female = 1:1) at 60 to 75 days of age fed diets of protein-free equalized digestible energy (Depf) were selected to carry out comparative slaughter experiment. Results showed that the deposition of digested lysine (Dlys), averagely 15. 33 g/kg of fat-free gain, was basically no difference in both the 7 to 16 kg and 16 to 25 kg growth periods and among diets containing different gradients of protein and amino acids. The deposition of other amino acids kept stable proportional relationship with that of lysine. The surplus of intake Dlys deducted the maintenance consumption of corresponding fat-free gain was almost entirely used for protein deposition. The deposition efficiency averaged 95. 36% . The results indicate that lysine is the first limitation amino acid of Guizhou Xiang pigs. Requirement of Dlys is (13. 58 -0.075 BW) g/kg of live body weight gain for growth. Taking Dlys as 100, the digested amino acids pattern is: Lys 100, Thr 55, Val 104, Met 23, He 44, Leu 123, Phe 15, His 44, Arg 92 and Trp 17.关键词
贵州香猪/氨基酸/沉积规律/扣除蛋白质等消化能Key words
Guizhou Xiang pigs/ amino acids/ deposition pattern/ Depf分类
农业科技引用本文复制引用
杨正德,罗国幸,戴燚,罗爱平,吴平..贵州香猪7～25kg生长阶段的氨基酸沉积规律与需要量的研究[J].动物营养学报,2011,23(11):2009-2015,7.基金项目
贵州省科学技术基金项目“贵州香猪能量、氨基酸沉积规律与饲养标准研究”黔科合J字(2009)2138号 （2009）
贵州大学大学生创新型实验计划项目“贵州香猪饲养标准研究与制订”贵大国创(2008) 005号 （2008）
