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Archivos de Zootecnia

versão On-line ISSN 1885-4494versão impressa ISSN 0004-0592

Resumo

SILVA, N.V. da et al. Carcass characteristics of sheep fed with guava by-product. Arch. zootec. [online]. 2014, vol.63, n.241, pp.25-35. ISSN 1885-4494.  https://dx.doi.org/10.4321/S0004-05922014000100003.

It was evaluated the carcass characteristics of 40 sheeps of Santa Inês breed, uncastrated, with initial average weight of 17.41 ± 1.27 kg and average age of 120 days and slaughtered with body weight of 32 kg or 105 days of confinement. The animals were placed in individual stalls and fed with diets containing increasing levels (0, 20, 40 and 60 %) of corn replacement by guava agroindustrial by-product. It was used the lineation completely at random with four treatments and ten repetitions. It occurred a diet effect over the weight and the percentage of carcasses and retail cuts. The replacement of 60 % of corn by guava agroindustrial by-product provided smaller hot carcass weight (11.91 kg) and cold carcass (11.81 kg), lower hot carcass yield (42.08 %) and cold carcass weight (41.72 %), lower rib eye area (9.94 cm2), and muscle (0.33 g/cm), and higher content of gastrointestinal tract (7.43 kg). It is estimated that the inclusion of up to 40 % of guava agroindustrial by-product in the diet replacing the corn is relevant to attaining carcasses with characteristics appropriate to the consumer market, especially where this food resource is available.

Palavras-chave : Lamb; pH; Psidium guajava; Santa Inês.

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