Abstract
The objective of this study was to evaluate the influence of the total or partial replacement of Tifton 85 hay (TH) by cassava foliage hay (CH) and/or spineless cactus (SC) on the carcass characteristics and meat quality of confined lambs. Thirty-five Dorper x Santa Inês crossbred lambs were used, with an initial average weight of 16.0±1.9kg, fed with five treatment diets: 70% TH, 70% CH, 35% TH+35% CH, 35% TH+35% SC, and 35% CH+35% SC. After 90days of confinement, the animals were slaughtered and the carcass and meat data were compared using the Tukey test at 5%. The partial replacement of TH by SC increased the cold carcass weight by 3.9kg (p<.05). The proportion of fat (%) increased (p<.05) when TH was replaced by CH+SC. The intensity of red (a*) was lower (p<.05) in the meat of animals fed with CH or CH+SC. It is recommended to partially replace TH with SC, or to replace totally with CH in association with SC.
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