6Stahly T, Rivera PH, et al. Availability of tryptophan in some feedstuffs for swine[J]. J. Anita. Sci., 1979, 43(2):432-441. 被引量：1
7Yen H T, Cole D J A, Lewis D. Amino acid requirements of growing pigs.7.The response of gigs from 25-55 kg live weighe to dietary ideal protein[J]. Animal Production, 1986a,43:141-154. 被引量：1
8Yen H T, Cole D J A, Lewis,D. Amino acid requirements of growing pigs.8. The response of gigs from 50-90 kg live weighe to dietary ideal proteinIJ]. Animal Production, 1986b,43:155-165. 被引量：1
9Louis G F, Lewis A J, Weldon W C, et al. The effect of protein intake on boar libido, semen characteristics and plasma hormone concentration[J]. J. Anita. Sci.,1994, 72:2 038-2 050. 被引量：1
