Attractant Addition in Practical Grouper Feed to Improve the Palatability of Fish Meal Substitution with Plant Protein

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基本資料

Project title

Code/計畫編號

94農科-14.2.2-漁-F1(9)

Translated Name/計畫中文名

誘引物質改進石斑魚對植物性蛋白原料接受性之研究

Project Coordinator/計畫主持人

Chyng-Hwa Liou

Funding Organization/主管機關

Council of Agriculture,Executive Yuan

Department/Unit

Department of Aquaculture

Website

https://www.grb.gov.tw/search/planDetail?id=1157719

Year

2005

Start date/計畫起

01-01-2005

Expected Completion/計畫迄

31-12-2005

Bugetid/研究經費

500千元

ResearchField/研究領域

漁業

我們近年來的研究已確認石斑魚達最佳成長，其蛋白質含量需高於45%，且其中一半蛋白質須由魚粉提供。隨著近年來海洋資源銳減，魚粉價格逐漸攀升，為降低飼料成本，以植物性蛋白取代魚粉已成為目前趨勢。然而植物性蛋白的取代造成飼料誘引性的下降，導致石斑魚對於飼料的接受度降低。因此誘引物的添加將有助於石斑魚接受植物性蛋白源的飼料。有報告指出，魚類的味覺受器對游離胺基酸具有高度敏感性，又某些魚類對於添加混合胺基酸於飼料中的反應較單一胺基酸強烈。另外，合成的烏賊萃取物若不含胺基酸則無法對歐洲鱸引起味覺刺激。又有報告指出，條紋鱸，在植物性原料為主之飼料中添加混合胺基酸，可增加條紋鱸對飼料之接受度及成長表現，並有助於降低飼料成本。本年度計劃擬以探討添加誘引物質於石斑魚飼料中，是否可增強石斑魚對植物性蛋白原料之接受度，並提升植物性蛋白原料之利用，並有效降低飼料成本。 In recent studies we have confirmed that more than 45% crude protein and half from fish meal are required in grouper feed to keep high growth rate for the fish. Fishmeal price increased as a result of increasing demand and reduced production in recent years, so there is a need to find suitable alternative to fishmeal. Many researchers showed that: high inclusion of plant protein as an alternative source for fishmeal protein reduced palatability of diet, thus there is a considerable interest to find appropriate attractants for grouper in order to increase the palatability and produce cost-effective diet in the future. Studies showed that fish taste receptors are highly sensitive to free amino acid. Using a mixture containing L-alanine, L-serine, inosine-5'-monophosphate and betaine in plant-based diets, stimulated feeding activity, improved feed acceptability and growth performance of cultured striped bass fed low-cost and plant-based diets. The present study is designed to investigate proper attractants for grouper, and growth study will be conducted to ensure the feasibility of certain attractants in plant-based diets. The improvement of alternative plant protein in grouper feed with attractants will bring towards a cost-effective and sustainable aquaculture industry.

Keyword(s)

石斑
誘引物
植物性蛋白質
Grouper
Attractants
Plant Protein

DSpace CRIS

Attractant Addition in Practical Grouper Feed to Improve the Palatability of Fish Meal Substitution with Plant Protein

基本資料

Description