Carcass Characteristics of Shorn Javanese Fat-Tailed Sheep Fed By Soybean Tofu Waste

Abstract

Sheep fattening using soybean tofu waste as energy resource is commonly applied by local farmers. On the contrary, people believe that the carcass produced by sheep fed by tofu waste have more fat, so that will decrease consumers palatability. Twelve Javanese fat-tailed rams fed by soybeans tofu waste and shorn treated were fattened for twelve weeks in order to identify the differences of its carcass characteristic. The research was designed by complete random design with two factorial (2x2). First treatment was diet type (P1 = grass and concentrate and P2 = grass and concentrate and soybean tofu waste). The diets were formulated as iso-energy (TDN = 69%). The second treatment was wool shearing (C1= shorn and C2= unshorn). The daily weight gain of animals was analyzed by analyses of variance (Anova), while carcass characteristics were analyzed by analyses of covariance (Ancova), whereas half of carcass was used as covariable. The result showed that the interaction between addition 30 % of tofu waste and wool shearing was significantly affected on average daily gain of fat-tailed rams (P<0.05). The addition of tofu waste as feed energy resource was not affected on fat percentage of carcass (P>0.05) that produce fat ranged 15-20% of carcass. In could be concluded that the addition of tofu waste was not increase fat production of carcass. The Javanese fat-tailed sheep that been slaughtered at 23 kg produce 42-47% of carcass consist of 57% muscle, 20% fat and 23% bone.