Two levels (1% and 3%) of condensed tannin extract from red quebracho (QT) were added to a diet of growing rabbits in a 6-wk feeding trial up to 12 wk of age. Health status was unaffected by the QT supplementation. The E. coli count of caecal content denoted a bactericidal activity of the QT. Weight gain and slaughter weigh were significantly higher and conversion index was significantly lower in rabbits fed QT diets, compared to those fed the control diet (P<0.05). Meat traits, as well the meat fatty acid profile weren't influenced by the QT supplementation. Our results contributed to increase the knowledge on the dietary use of QT in the rabbit. QT extract supplemented at 1% and 3% in fattening rabbits diet had a clear beneficial effect on live performance. Further studies are needed to assess if supplementing diets with QT can be a valuable strategy.
Dietary inclusion of tannin extract from red quebracho trees (Schinopsis spp.) in the rabbit meat production
DALLE ZOTTE, ANTONELLA;
2009
Abstract
Two levels (1% and 3%) of condensed tannin extract from red quebracho (QT) were added to a diet of growing rabbits in a 6-wk feeding trial up to 12 wk of age. Health status was unaffected by the QT supplementation. The E. coli count of caecal content denoted a bactericidal activity of the QT. Weight gain and slaughter weigh were significantly higher and conversion index was significantly lower in rabbits fed QT diets, compared to those fed the control diet (P<0.05). Meat traits, as well the meat fatty acid profile weren't influenced by the QT supplementation. Our results contributed to increase the knowledge on the dietary use of QT in the rabbit. QT extract supplemented at 1% and 3% in fattening rabbits diet had a clear beneficial effect on live performance. Further studies are needed to assess if supplementing diets with QT can be a valuable strategy.Pubblicazioni consigliate
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