Partial replacement of fish meal by cottonseed meal and soybean meal with iron and phytase supplementation for parrot fish Oplegnathus fasciatus
Partial replacement of fish meal by cottonseed meal and soybean meal with iron and phytase supplementation for parrot fish Oplegnathus fasciatus
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DOI：
10.1016/j.aquaculture.2009.02.018
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发表时间：
2009-05-19
期刊：
影响因子：
4.5
通讯作者：
Lee, Kyeong-Jun
中科院分区：
文献类型：
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作者：
Lim, Se-Jin;Lee, Kyeong-Jun
本试验通过两个连续的饲养试验，研究了在添加或不添加铁和植酸酶的情况下，以棉籽粕和豆粕（CS）代替鱼粉（FM）对鹦鹉鱼幼鱼和生长期鹦鹉鱼的最佳饲料添加量。在实验1中，幼鹦鹉鱼（BW：3.17 g）喂养12周的6个实验饲料，配制成以等比例（1：1，w：w）的CS（分别指定为CS 0，CS10，CS20，CS30，CS40，或CS50），以取代FM蛋白质。在实验11中，生长鹦鹉鱼（BW：55克）被喂食9周的五个实验饮食之一。配制实验饮食以用0、20或30%的CS（分别称为CS 0、CS20或CS30）替代FM蛋白，并在CS20和CS30饮食（分别为CS20 + Fe&P和CS30 + Fe&P）中包括硫酸亚铁（0.1和0.2%）和植酸酶。两次投喂试验结果表明，在3-22 g的鹦鹉鱼幼鱼饲料中，壳聚糖可替代20%的FM蛋白，在55-120 g的生长鹦鹉鱼饲料中，壳聚糖可替代30%的FM蛋白。铁和植酸酶的添加效果不显著。肝脏中总棉酚或每种棉酚对映体浓度随着膳食棉粕水平的增加而增加。然而，棉酚在鱼的肝脏喂养饲料补充铁没有检测到。饮食中补充CS显着降低血浆甘油三酯和总胆固醇的水平。本研究表明，植物蛋白源更好地利用较大的鱼，和高达约30%的FM蛋白质可以取代CS与铁和植酸酶的存在下，补充赖氨酸和蛋氨酸。(C)2009 Elsevier B. V.保留所有权利。
Two consecutive feeding trials were conducted to determine the optimum dietary level of the cottonseed and soybean meal (CS) for replacement of fish meal (FM) in diets for juvenile and ongrowing parrot fish with or without iron and phytase. In experiment 1, juvenile parrot fish (BW: 3.17 g) were fed one of six experimental diets for 12 weeks which were formulated to replace FM protein by equal proportion (1:1, w:w) of CS at 0, 10, 20, 30, 40, or 50% (designated as CS0, CS10, CS20, CS30, CS40, or CS50, respectively). In experiment 11, ongrowing parrot fish (BW: 55 g) were fed one of five experimental diets for 9 weeks. The experimental diets were formulated to replace FM protein by CS at 0, 20, or 30% (designated as CSO, CS20, or CS30, respectively) and to include ferrous sulfate (0.1 and 0.2%) and phytase into the CS20 and CS30 diets (CS20 + Fe&P and CS30 + Fe&P, respectively). Results from the two feeding trials indicated that the CS could replace up to 20% FM protein in diets for juvenile parrot fish (3-22 g) and up to 30% in ongrowing (55-120 g) parrot fish. The supplemental effect of iron and phytase was not significant on growth performance. Total or each gossypol enantiomer concentration in the liver increased as the level of dietary cottonseed meal increased. However, gossypol in the liver of fish fed diets supplemented with iron was not detected. The dietary supplementation of CS significantly reduced the levels of plasma triacyglycerols and total cholesterol. The present study indicates that plant protein sources are better utilized in larger fish, and that up to approximately 30% FM protein could be replaced by CS with iron and phytase in the presence of supplemental lysine and methionine. (C) 2009 Elsevier B.V. All rights reserved.