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Effects of feeding strategy during a short finishing period on performance, carcass and meat quality in previously-grazed young bulls

AutorCerdeño, Ana Isabel ; Vieira, Ceferina ; Serrano, Emma; Lavín, Paz ; Mantecón, Ángel R.
Palabras claveBulls
Performance traits
Carcass quality
Beef quality
Fecha de publicación2006
CitaciónMeat Science 72(4): 719-726 (2006)
ResumenTwenty-one Brown Swiss × Limousin young bulls reared on pasture were housed for a short finishing period (60 days). CA group (concentrate-ad libitum group) received concentrate and straw ad libitum for the whole finishing period. CR group (concentrate-restricted group) received 4 kg of concentrate/animal per day and ad libitum alfalfa hay throughout the 60 days. CRA group (concentrate-restricted/ad libitum group) received the same diet as CR group for the first 30 days and the same diet as CA group for the last 30 days. CA and CRA groups presented higher fatness values. Myoglobin concentration in muscle was highest in CA group (P < 0.05) and carotene content in subcutaneous fat was highest in CR group (P < 0.01), while Warner–Bratzler shear force and sensory traits were unaffected (P > 0.05). It is concluded that, in this type of young animal, 4 kg concentrate plus ad libitum alfalfa hay for a 60-day finishing period, despite lower fatness, provides carcasses and meat with acceptable quality characteristics, similar to those obtained from ad libitum fed animals for the same period.
Descripción8 pages, 5 tables.-- Available online 22 November 2005.
Versión del editorhttp://dx.doi.org/10.1016/j.meatsci.2005.10.002
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