Open AccessAVALIAÇÃO DA SOMATOTROPINA BOVINA RECOMBINANTE (rbST) NOS NÃO-COMPONENTES DA CARCAÇA DE CABRITOS DE TRÊS GENÓTIPOS
Author(s) -
Luciana Rodrigues,
Heraldo César Gonçalves,
Brenda Batista Lemos Medeiros,
Jakilane Jacque Leal de Menezes,
Sirlei Aparecida Maestá
Publication year - 2013
Publication title -
ciência animal brasileira
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.174
H-Index - 10
eISSN - 1809-6891
pISSN - 1518-2797
DOI - 10.5216/cab.v14i2.8984
Subject(s) - bovine somatotropin , zoology , boer goat , biology , body weight , growth hormone , veterinary medicine , hormone , endocrinology , medicine
This study was developed with the aim of evaluating recombinant bovine somatotropin (rbST) on non-carcass components of goat kids of three genotypes. It was used 23 male goat kids of three genotypes, being 8 Alpine, 4 ½ Boer + ½ Alpine (½ BA) and 11 ¾ Boer + ¼Alpine (¾ BA), from which 12 received rbST e 11 control. The growth hormone used was the recombinant bovine somatotropin (rbST) and animals of treatment 1 received the hormone in the amount of 0.3 mg/kg live weight, from 45 days, adjusted in intervals of 14 days. Animals of treatment 2 (control) received saline solution in the same dosage and interval. The ½ BA goats presented a higher proportion of external non-carcass components (head, feet and skin) in relation to Alpine goats. Regarding the vital organs, such as lungs, kidneys and spleen, and the non-carcass components blood, internal fat and perinephric fat, Alpine goats presented higher values than ¾ BA goats. The administration of recombinant bovine somatotropin (rbST) did not produce effect on proportions and weight of non-carcass components. Proportions and weight of non-carcass components varied in function of genotypes, although animals were slaughtered at similar live weight