The influence of goat genotype on the production of Capretto and Chevon carcasses. 4. Chemical composition of muscle and fatty acid profiles of adipose tissue

The chemical composition of muscle and the fatty acid composition of adipos e tissue from the carcasses obtained from 50 buck kids from five genotypes (10 kids/genotype), Beer x Angora (BA), Beer x Saanen (BS), Fera x Feral (F F), Saanen x Angora (SA) and Saanen x Feral (SF) reared for Capretto and Ch evon production, were compared. Genotype did not influence the chemical com position of muscle except for muscle from BA carcasses, which had significa ntly higher extractable fat content. The proportions of individual fatty ac ids differed significantly between genotypes for the Capretto kids. Adipose tissue from the Capretto group had a higher concentration of palmitic acid (31-34%), while the proportion of oleic acid (37-40%) was greater in the C hevon group. With an increase in age and resultant change in diet, the satu rated fatty acid concentration decreased and the unsaturated fatty acid con centration increased. (C) 1999 Elsevier Science Ltd. All rights reserved.