Development of less-polluting diets for practical fish culture. I. Development of low protein-high energy diets for practical carp culture with special reference to reduction of total nitrogen excretion.
Development of less-polluting diets for practical fish culture. I. Development of low protein-high energy diets for practical carp culture with special reference to reduction of total nitrogen excretion.
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开发用于实用鱼类养殖的污染较少的饲料。
DOI：
10.2331/suisan.53.1413
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发表时间：
1987
影响因子：
0.4
通讯作者：
Masanao Yaguchi
中科院分区：
文献类型：
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作者：
Takeshi Watanabe;T. Takeuchi;S. Satoh;T. Ida;Masanao Yaguchi
为开发适合鲤鱼养殖的低蛋白高能饲料（低污染饲料），降低鲤鱼的总氮排泄量，进行了两个饲养试验。两个试验的结果表明，粗蛋白质（CP）含量为32-37%，消化能（DE）在340 kcal以上/100 g日粮中添加碳水化合物或脂类，其生长和饲料效率优于CP含量为40%以上的商品化CAZP日粮。这表明，如果以优质蛋白质为蛋白质源，用碳水化合物或脂类提高饲料DE含量至340 kcal/100 g左右，在不降低鲤鱼生长速度和饲料效率的情况下，可将鲤鱼饲料中CP含量从40%左右降低到30%左右。鲤鱼的总氮排泄量也被发现减少了30-48%，通过喂养这些低蛋白-高能量的饮食。
Two feeding experiments were conducted for both practical and experimental scales to develop low-protein high-energy diets (less-polluting diets) for practical carp culture in order to reduce the total nitrogen excretion from the fish. Results of both the experiments have demonstrated that diets containing 32-37% crude protein (CP) with digestible energy (DE) above 340kcal/100g diet enriched with carbohydrate or lipid were found to be better than a commercial cazp diet containing CP above 40% in growth and feed efficiency. This fact indicated that CP content in practical carp feeds can be reduced from 40% to around 30% without reduction of growth rate and feed efficiency, if a high quality protein is used as protein source and DE content is increased by carbohydrate or lipid to about 340kcal/100g diet. The total nitrogen excretion from carp was also found to be reduced by 30-48% of the present value by feeding these low protein-high energy diets.