文献类型：期刊文献

英文题名：Apparent digestibility of selected feed ingredients in diets for juvenile hybrid tilapia, Oreochromis niloticus x Oreochromis aureus

作者：Dong, Xiao-Hui[1];Guo, Yun-Xue[1];Ye, Ji-Dan[2,3];Song, Wen-Dong[1];Huang, Xiang-Hu[1];Wang, Hui[1]

机构：[1]Guangdong Ocean Univ, Coll Fisheries, Zhanjiang 524025, Peoples R China;[2]Jimei Univ, Coll Fisheries, Xiamen, Peoples R China;[3]Jimei Univ, Inst Aquaculture Biotechnol, Xiamen, Peoples R China

年份：2010

卷号：41

期号：9

起止页码：1356

外文期刊名：AQUACULTURE RESEARCH

收录：SCI-EXPANDED(收录号：WOS:000281059700050)、、WOS

基金：This work was supported by the Ministry of Science and Technology of the People's Republic of China and Key Laboratory of Science and Technology for Aquaculture and Food Safety, Jimei University, China.

语种：英文

外文关键词：hybrid tilapia; feed ingredient; apparent digestibility; chromic oxide

外文摘要：The apparent digestibility coefficients (ADCs) of dry matter, crude protein, crude lipid, ash, phosphorus, gross energy and amino acids of 10 selected ingredients for juvenile hybrid tilapia (7.05 +/- 0.09 g) were determined using 0.5% Cr(2)O(3) as an inert indicator. The feed ingredients tested in this study were corn gluten meal (CGM), corn byproduct, corn germ meal (CG), soybean meal (SBM), fermented soybean meal (FSM), soy protein concentrate (SPC), soy protein isolate, malt sprouts (MS), fish meal (FM) and earthworm meal (EM). The test diets were prepared by incorporation of 30% test ingredients into the reference diet. Reference and test diets were fed to the fish and the faecal samples were collected using a faecal collection column attached to the fish-rearing tanks. The ADCs for dry matter, crude protein, crude lipid, ash, phosphorus and gross energy were 41.7-98.9%, 90.6-99.6%, 73.1-98.8%, 34.1-98.6%, 49.5-99.6% and 45.4-99.7% respectively. Soy protein isolate, FM and EM had higher dry matter, crude protein and gross energy ADCs. Corn byproduct and EM had higher crude lipid ADCs, and CG and EM had higher phosphorus ADCs. Corn germ meal had the highest ash ADC, while CGM had the highest value for gross energy. The lowest dry matter, crude protein, lipid and gross energy ADCs occurred in MS, while the lowest ash and phosphorus ADCs occurred in SPC. The amino acid ADCs ranged from 83.3% to 100%, exhibiting a positive correlation with crude protein digestibility for a given test ingredient. The feed ingredient digestibility of this study may provide useful information about nutrient and energy utilization to facilitate formulation of least-cost practical diets for hybrid tilapia.