Institute of Science of Food Production, Torino Division, National Research Council, Via L. da Vinci 44, Grugliasco (TO), Italy.
J Fish Biol. 2009 Mar;74(4):773-89. doi: 10.1111/j.1095-8649.2008.02157.x.
Field and laboratory studies were conducted to evaluate the intestinal responses to partial replacement of fish meal with rice protein concentrate (RPC) in practical diets for blackspot seabream Pagellus bogaraveo. Two experimental diets were formulated to be isoproteic and isoenergetic with an increasing level of RPC (20 and 35%, respectively) and were tested against a fish meal-based control diet (RPC0). The diets showed similar features for growth performances and both intestinal histology and digestive enzymes. This study confirmed that RPC does not induce intestinal mucosa alterations in this fish. The dietary RPC supplement caused a significant increase in trypsin activity, whereas lipase activity was reduced.
本研究开展了田间和实验室试验，评估了用大米蛋白浓缩物（RPC）部分替代鱼粉对真鲷肠道的影响，以开发真鲷实用饲料。配制了两种试验饲料，其蛋白质和能量与鱼粉基础对照组（RPC0）饲料相同，但 RPC 水平分别为 20%和 35%。结果表明，两种试验饲料对真鲷生长性能、肠道组织学和消化酶均无显著影响。该研究证实，RPC 不会引起这种鱼类的肠道黏膜发生改变。饲料中添加 RPC 会显著增加胰蛋白酶活性，而降低脂肪酶活性。
