Authors : Dongdong Chen, Ling Liu, Jianjun Zang and Fenglai Wang
Abstract: The objectives of this study were to determine the chemical composition, amino acid digestibility for peanut meal and to develop prediction equations for estimating amino acid digestibility of peanut meal based on the chemical characteristics. Twelve finishing barrows (initial BW: 63.1±3.19 kg) were surgically equipped with a T-cannula in the distal ileum and arranged to two 6×;6 Latin square design with eleven diets and six periods. Ten of the diets were formulated using peanut meal as sole source of amino acid and chromic oxide as an inert marker. An N-free diet was used to measure the basal ileal Endogenous Amino acid Losses (EAL). The results showed that the digestibility coefficients of lysine, threonine and tryptophan was dependent on crude fiber content and coefficients of methionine decreased with the increase of ether extract content in peanut meal. And the digestibility coefficients of tryptophan was negatively correlated to crude fiber and positively correlated to ash. Using two chemical characteristics, ether extract and crude fiber together resulted in the best prediction of standardized ileal digestibility of methionine (R2 = 0.55, p<0.01) and crude fiber and ash for standardized ileal digestibility of tryptophan (R2 = 0.59, p<0.01).
Dongdong Chen, Ling Liu, Jianjun Zang and Fenglai Wang, 2014. Nutritional Value of Ten Peanut Meals for Finishing Pigs: Chemical Composition and Amino Acid Digestibility. Journal of Animal and Veterinary Advances, 13: 1031-1038.