|
|||||
|
|
| Effects of Replacing Fishmeal with Animal By-products Meal Supplementation in Diets on the Growth and Nutrient Utilization of Mangrove Red Snapper | |
| 作者姓名： | Khalid Jamil Ghulam Abbas Rukhsana Akhtar LIN Hong LI Zhenxing |
| 作者单位： | Food and Marine Resource Centre Pakistan Council of Scientific and Industrial Research Laboratories，Complex Karachi，Pakistan，Centre of Excellence in Marine Biology，University of Karachi，Karachi-75270，Pakistan，Centre of Excellence in Marine Biology，University of Karachi，Karachi-75270，Pakistan |
| 基金项目： | Acknowledgements The authors would like to thank the University Grants Commission （presently Higher Education Commission）, Islamabad, Pakistan for the research grant CEMBUGC-SRP-6 that was provided for this study. We would also like to thank Dr. Mustafa Shameel （Ex-irector） of the Centre of Excellence in Marine Biology, University of Karachi, for providing the facilities at the Centre to carryout this study. |
| 摘 要： | A feeding trial was conducted for 75 d to evaluate the nutritive value of a mixture of animal by-products(MAB) as a possible protein source in diets for juvenile mangrove red snapper,Lutjanus argentimaculatus(mean initial body weight,30 g). Fish were fed one of five isonitrogenous diets(40% crude protein) replacing 0,25%(MAB25),50%(MAB50),75%(MAB75) and 100%(MAB100) of fish meal protein with similar percentages of MAB. The MAB consisted of 25% cow liver meal,20% leather meal,20% meat and bone meal,15% blood meal,10% APC(poultry feather meal),8% poultry manure dried,1.5% choline and 0.5% chromic oxide. After 75 d of feeding,fish fed with diets MAB50,MAB75 and MAB100 exhibited significantly lower growth per-formance than that of fish fed with control and MAB25 diets. The optimum level of MAB was estimated to be 23%. Replacement of fish meal by MAB23% showed the following performance:maximum weight gain,510%;SGR,2.39% and FCE,2.83%. The MAB substitution up to 75% of fish meal protein in diets did not show differences in apparent protein digestibility(83.6% for MAB25,79.2% for MAB50,78.7% for MAB75) compared with control(83.4%),whereas in MAB100 group digestibility(65.3%) was sig-nificantly lower than in other groups. The apparent phosphorus absorption of test diet groups was significantly higher(37.1% for MAB25,28.5% for MAB50,55.6% for MAB75 and 54.5% for MAB100) than that of control(11.2%). The levels of protein and ash in the whole body,carcass and viscera increased as MAB substitution in diets increased,whereas lipids and moisture remained con-sistent among all treatment groups. These results showed that approximately 23% of fish meal protein could be replaced by a mixture of animal by-products for juvenile snapper growing from 30 g to 167 g in 75 d without compromising growth performance and feed efficiency. |
| 关 键 词： | 红树林 动物产品 鱼粉 营养 |
| 收稿时间： | 5 June 2006 |
| 修稿时间： | 2006-07-052007-03-20 |
Effects of replacing fishmeal with animal by-products meal supplementation in diets on the growth and nutrient utilization of mangrove red snapper |
|
| Khalid Jamil Ghulam Abbas Rukhsana Akhtar LIN Hong LI Zhenxing.Effects of Replacing Fishmeal with Animal By-products Meal Supplementation in Diets on the Growth and Nutrient Utilization of Mangrove Red Snapper[J].Journal of Ocean University of China,2007,6(3):292-298. | |
| Authors: | Khalid Jamil Ghulam Abbas Rukhsana Akhtar Lin Hong Li Zhenxing |
| Institution: | 1. Food and Marine Resource Centre, Pakistan Council of Scientific and Industrial Research Laboratories,Complex Karachi, Pakistan 2. Centre of Excellence in Marine Biology, University of Karachi, Karachi-75270, Pakistan 3. Division of Life Science and Technology, Ocean University of China, Qingdao 266003, P. R. China |
| Abstract: | A feeding trial was conducted for 75 d to evaluate the nutritive value of a mixture of animal by-products(MAB) as a possible protein source in diets for juvenile mangrove red snapper,Lutjanus argentimaculatus(mean initial body weight,30 g). Fish were fed one of five isonitrogenous diets(40% crude protein) replacing 0,25%(MAB25),50%(MAB50),75%(MAB75) and 100%(MAB100) of fish meal protein with similar percentages of MAB. The MAB consisted of 25% cow liver meal,20% leather meal,20% meat and bone meal,15% blood meal,10% APC(poultry feather meal),8% poultry manure dried,1.5% choline and 0.5% chromic oxide. After 75 d of feeding,fish fed with diets MAB50,MAB75 and MAB100 exhibited significantly lower growth per-formance than that of fish fed with control and MAB25 diets. The optimum level of MAB was estimated to be 23%. Replacement of fish meal by MAB23% showed the following performance:maximum weight gain,510%;SGR,2.39% and FCE,2.83%. The MAB substitution up to 75% of fish meal protein in diets did not show differences in apparent protein digestibility(83.6% for MAB25,79.2% for MAB50,78.7% for MAB75) compared with control(83.4%),whereas in MAB100 group digestibility(65.3%) was sig-nificantly lower than in other groups. The apparent phosphorus absorption of test diet groups was significantly higher(37.1% for MAB25,28.5% for MAB50,55.6% for MAB75 and 54.5% for MAB100) than that of control(11.2%). The levels of protein and ash in the whole body,carcass and viscera increased as MAB substitution in diets increased,whereas lipids and moisture remained con-sistent among all treatment groups. These results showed that approximately 23% of fish meal protein could be replaced by a mixture of animal by-products for juvenile snapper growing from 30 g to 167 g in 75 d without compromising growth performance and feed efficiency. |
| Keywords: | mangrove red snapper animal by-product growth body composition energy retention Lutjanus argentimaculatus |
| 本文献已被 CNKI 维普 万方数据 SpringerLink 等数据库收录！ | |