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The objective was to evaluate the performance, carcass and meat quality of 40 lambs classified by RFI (residual feed intake) and RIG (residual intake and gain). Dry matter intake (DMI) was recorded to calculate the RFI and RIG, classified as efficient, moderately or inefficient. After the confinement period, they were slaughtered and the carcass and meat quality were determined. The efficient animals had DMI scores of 0.700 RFI and 0.400 kg/d RIG, lower than the inefficient ones with similar weight gain. The RFI efficient animals showed greater shear force, without effect in the RIG classification. In general, the variables analyzed were not influenced by RFI or RIG. Efficiency measures do not affect the carcass and meat quality of sheep, but they do have the advantage of identifying animals with lower feed consumption, making the system more efficient. However, as the dataset is limited to fully assess the effects, this manuscript can be used as preliminary results for future studies.
Meat Science
Universidad de Santander UDES. Vigilada Mineducación.
Resolución otorgada por el Ministerio de Educación Nacional: No. 6216 del 22 de diciembre de 2005 / Personería Jurídica 810 de 12/03/96.
Institución sujeta a inspección y vigilancia por el Ministerio de Educación Nacional. Resolución 12220 de 2016.
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