Evaluation of the nutritional quality of four unexplored aquatic weeds from northeast India for the formulation of cost-effective fish feeds
Evaluation of the nutritional quality of four unexplored aquatic weeds from northeast India for the formulation of cost-effective fish feeds
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DOI：
10.1016/j.foodchem.2006.08.007
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发表时间：
2007-01-01
期刊：
影响因子：
8.8
通讯作者：
Mukherjee, Ashis K.
中科院分区：
文献类型：
--
作者：
Kalita, Pallabi;Mukhopadhyay, Pratap K.;Mukherjee, Ashis K.
进行了一项研究，以评估四种常见的，未开发的水生杂草，即，萨尔瓦多cuculata，菱，浮萍和Ipomoea reptans从印度东北部的营养潜力，以确定其适用性作为补充鱼饲料，目的是降低商业饲料的成本。工业分析结果表明，各水草的粗蛋白含量在11.0%~ 32.2%（w/w）之间，粗纤维含量在4.2%~ 20%（w/w）之间，灰分含量在13.3%~ 31.2%（w/w）之间。这些杂草的蛋白质能量比（PIE）在30.7 ~ 95.3 mg/kcal之间，以匍匐蹄草的PIE最高。抗营养因子分析结果表明：胰蛋白酶抑制剂（TIA）的浓度范围为1.1%~ 1.5%，草酸钙的浓度范围为0.6%~ 3.5%，单宁含量在0.25%~ 0.93%之间，植酸含量在0.004%~ 0.005%之间，这些抗营养成分的含量均在鱼类特别是鲤鱼的耐受范围内。本研究表明，这些水生杂草的商业开发，特别是I。reptans和L.小，成本效益和平衡的人工鱼饲料的配方似乎是非常有前途的。(c)2006爱思唯尔有限公司保留所有权利。
A study was conducted to evaluate the nutritional potential of four commonly available, unexplored aquatic weeds namely, Salvinia cuculata, Trapa natans, Lemna minor and Ipomoea reptans from northeast India for ascertaining their suitability for utilization as supplementary fish feed with the aim to reduce the cost of commercial feeds. Results of proximate analysis showed that the crude protein content of the aquatic weeds ranged between 11.0% and 32.2% (w/w), whereas crude fibre and ash contents varied between 4.2% and 20% (w/w), and 13.3% and 31.2% (w/w), respectively. Protein to energy ratio (PIE) of these weeds ranged between 30.7 mg/kcal and 95.3 mg/kcal and the highest value was displayed by L reptans. All these aquatic weeds contained high amounts of vitamins E and C and mineral elements required for the normal growth and development of fish.Analysis of antinutritional factors showed that the concentration (g%) of trypsin inhibitor (TIA) ranged from 1.1% to 1.5%, calcium oxalate concentration ranged from 0.6% to 3.5%, tannin concentration ranged from 0.25% to 0.93% and phytate concentration ranged from 0.004% to 0.005% in these plant samples, and the amounts of these antinutritional components were within the tolerable limits of fish, particularly for carp. The present study demonstrates that commercial exploitation of these aquatic weeds, particularly I. reptans and L. minor, for the formulation of cost-effective and balanced artificial fish feeds appears to be highly promising. (c) 2006 Elsevier Ltd. All rights reserved.