Effect of dietary protein levels on growth, feed utilization and carcass composition of endangered bagrid catfish Horabagrus brachysoma (Gunther 1864) fingerlings

被引：25

作者：

Giri, S. S. ^{[1
]}

Sahoo, S. K. ^{[1
]}

Paul, B. N. ^{[1
]}

Mohanty, S. N. ^{[1
]}

Sahu, A. K. ^{[1
]}

机构：

[1] Cent Inst Freshwater Aquaculture, Div Fish Nutr & Physiol, Bhubaneswar 751002, Orissa, India

来源：

AQUACULTURE NUTRITION | 2011年 / 17卷 / 03期

关键词：

carcass composition; dry matter intake; growth; Horabagrus brachysoma; protein requirement; threatened catfish; yellow catfish; BODY-COMPOSITION; CHANNEL CATFISH; NUTRIENT DIGESTIBILITY; DRIED FISH; CARBOHYDRATE; REQUIREMENT; TEMPERATURES; EFFICIENCY; CONVERSION; SURVIVAL;

D O I：

10.1111/j.1365-2095.2010.00787.x

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

An 84-day feeding trial was conducted to study the effect of different levels of dietary protein, 250 (P25), 300 (P30), 350 (P35), 400 (P40) and 450 g (P45) kg(-1) dry matter (DM) on growth, feed intake, feed utilization and carcass composition of bagrid catfish Horabagrus brachysoma fingerlings. Triplicate groups of fingerlings with mean initial body weight of 2.2 g were fed the experimental diets twice daily, till satiation, in 150-L tanks supplied with flow-through freshwater. Daily dry matter intake by the fingerlings decreased significantly (P < 0.05) when fed P25 diet, containing 250 g protein kg(-1). The highest body weight gain, specific growth rate (SGR) and protein efficiency ratio (PER), and the lowest feed conversion ratio (FCR) were observed in fish fed 350 g protein kg(-1) diet. The fish fed with P45 diet had the lowest (P < 0.05) carcass lipid content. The polynomial regression analysis indicates that H. brachysoma fingerlings require 391 g dietary crude protein kg(-1) diet.

引用

页码：332 / 337

页数：6

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