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Abstract(s)
This work aims to evaluate sex and carcass weight effects on carcass composition of kids. Sixty
Serrana kids (31 male and 29 female), a Portuguese breed, were used. Kids were slaughtered after
24 h fasting. Carcasses were cooled at 4°C for 24 h, halved and left side was dissected into muscle,
subcutaneous fat, intermuscular fat, bone and remainder (major blob vessels, ligaments, tendons,
thick connective tissue sheets). Kidney, knob and channel fat (KKCF) was considered as a carcass
component since in Portugal kid's carcasses are commercialised with KKCF included. Female
kids presented higher (P < 0.05) intermuscular fat proportion, muscle/bone ratio and KKCF than
males, however, male kids had higher (P < 0.05) bone proportion and muscle/fat ratio. All fat depots
increased and bone proportion decreased (P < 0.05) with carcass weight increasing. Carcass weight
increasing induced muscle/bone ratio increasing (P < 0.05) and muscle/fat ratio decreasing (P <
0.05). Female kids should be slaughtered at lower live weight in order to minimize the carcass
fatness development. In spite of the differences in tissue proportions induced by carcass weight,
heavier kids (8 kg) weren't excessively fattened, indicating that they can be slaughtered at higher
live weights without compromise carcass quality.
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Citation
Rodrigues, Sandra; Cadavez, Vasco; Delfa, R.; Teixeira, Alfredo (2006). The influence of sex and carcass weight on carcass composition of Serrana kids. In Book of Abstracts of the 57th EAAP Annual meeting. Antalya