Apparent nutrient and energy digestibility of canola meal for Nile tilapia (Oreochromis niloticus)

[摘要] - This study was carried out to determine the digestible energy and apparent nutrient digestibility of canola meal for Nile tilapia (Oreochromis niloticus). The chromic oxide (0.1%) was used as an inert indicador in the semi-purified diet and faeces were collected by Guelph system. Fish were fed to apparent satiation. The apparent nutrient and energy digestibility of canola meal were: 77.84, 71.99, 86.92, 88.19, 67.16, and 29.86% for dry matter, energy, protein, lipids, calcium and phosphorus, respectively, corresponding to 2969,98 (kcal/kg); 69.97, 32.6, 1.2, 0.41, and 0.28% of, digestible energy, dry matter, protein and lipids and available calcium and phosphorus, respectively. The results obtained in this experiment evidence that Nile tilapia may be able to utilize canola meal eficiently.

[学科分类] 兽医学

[关键词] apparent digestibility;canola meal;Nile tilapia;Oreochromis niloticus   IntroduçãoAs tilápias utilizam eficientemente dietas com elevados níveis de carboidratos (STICKNEY;1997);atribuído às adaptações morfológicas e fisiológicas;que incluem dentes faringeanos;pH estomacal baixo (< 1;5) e intestino longo (KUBARIK;1997)