%0 Journal Article
%T Productive performance and economical analysis of confined lambs slaughtered with three fat thicknesses Desempenho produtivo e econ mico de cordeiros confinados abatidos com tr那s espessuras de gordura
%A Rafael Marzall Amaral
%A Francisco de Assis Fonseca de Macedo
%A Claudete Regina Alcalde
%A Daniela Andressa Lino
%J Revista Brasileira de Sa迆de e Produˋˋo Animal
%D 2011
%I Universidade Federal da Bahia
%X Thirty six lambs were used, with twelve of each genotype: Santa In那s,   Dorper-Santa In那s e   White Dorper-Santa In那s were slaughtered with 2.0, 2.5 and 3.0mm of subcutaneous fat thickness. They were evaluated through ultrasound to verify the effect of the genotype and fat thickness on the performance, economic yield and carcass characteristics. The weight gain was greater for   Dorper-Santa In那s (0.311kg/day) and   White Dorper-Santa In那s (0.319kg/day). The final live weight was lower for the animals slaughtered with 2.0mm (26.20kg), intermediate for those with 2.5mm (28.23kg) and higher for those slaughtered with 3.0mm (32.00kg). The variables: weight gain, ration intake and confinement period were higher for the lambs slaughtered with 3.0 mm. The confinement of the   White Dorper-Santa In那s (R$2,301.60) and   Dorper-Santa In那s lambs (R$1,911.75) resulted in larger net income than that of the Santa In那s (R$856.60). The   Dorper-Santa In那s and   White Dorper-Santa In那s lambs had better productive performance. The confinement of the   Dorper-Santa In那s and   White Dorper-Santa In那s lambs, as well as the slaughter with 3.0mm of fat thickness, result in greater income. Carcasses of   White Dorper-Santa In那s lambs had better conformation than those Santa In那s and lambs slaughtered at 3.0mm of fat thickness had a greater fat cover in the carcass. Foram utilizados 36 cordeiros, dos quais 12 de cada gen車tipo: Santa In那s,   Dorper-Santa In那s e  White Dorper-Santa In那s, abatidos com 2,0; 2,5 e 3,0mm de espessura de gordura subcutanea, avaliados por ultrassonografia, para verificar o efeito do gen車tipo e da espessura de gordura sobre o desempenho produtivo e econ mico e as caracter赤sticas de carca a. O ganho de peso foi maior para os cordeiros   Dorper-Santa In那s (0,311kg/dia) e   White Dorper-Santa In那s (0,319kg/dia). O peso vivo final foi menor para os animais abatidos com 2,0mm (26,20kg), intermedi芍rio para os com 2,5mm (28,23kg) e maior para os abatidos com 3,0mm (32,00kg). As vari芍veis ganho de peso, consumo de ra  o e dias em confinamento foram maiores para os cordeiros abatidos com 3,0mm. O confinamento dos cordeiros   White Dorper-Santa In那s (R$2.301,60) e   Dorper-Santa In那s (R$1.911,75) resultaram em maior renda l赤quida que os cordeiros Santa In那s (R$856,60). Os cordeiros   Dorper-Santa In那s e   White Dorper-Santa In那s tiveram melhor desempenho produtivo. O confinamento de cordeiros   Dorper-Santa In那s e   White Dorper-Santa In那s, assim como o abate com 3,0mm de espessura de gordura promovem maior renda. As carca as de cordeiros   White Dorper-Santa In
%U http://revistas.ufba.br/index.php/rbspa/article/view/1948