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Characteristics of carcass and non-carcass components of Moxotó and Canindé male kids under two feeding levels
[摘要]

Twenty-two non-castrated male kids (10 Moxotó and 12 Canindé)averaging 15 kg of initial body weight and housed in individual pens were usedin this trial. Animals were assigned to a completely randomized design in a2 x 2 factorial arrangement of treatments [two breeds and two feeding levels:ad libitum (AL) or 30% of feed restriction (FR). Animals fed AL had greateryields of hot carcass, cold carcass, and carcass edible parts compared to thosefed FR. It was not observed a significant feeding level effect on true carcassyield. After slaughter and cooling of the carcasses the following cuts weredone: neck, shoulder clod, ribs (1st-5th and 6th-13th),loin, leg and breast. Although animals fed AL had greater body weights thanFR kids, no significant differences were found between treatments for the differentcarcass cuts when expressed as percentage of cold carcass weight. Hind leg yieldwas affected by feeding level being lower in animals fed AL. Yields of liver,head, and gut, as percentage of empty body weight, were also affected by feedinglevel. Feed restriction had a negative effect on development and tissue depositionleading to lower cold carcass yield and weight. It can be concluded that whensize and mature weight were similar, breed was not responsible for the differenceson carcass characteristics, non-carcass components, and commercial cuts.

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[效力级别]  [学科分类] 兽医学
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