青紅雜交斑與其親本肌肉營養成分分析及品質評價

摘要 通過對青紅雜交斑及其親本赤點石斑魚、斜帶石斑魚的肌肉營養成分進行分析和品質評價，旨在為其種質營養學鑒定及配合飼料的研制提供基礎數據資料。結果顯示：青紅雜交斑與赤點石斑魚的肌肉質構指標比較相近。青紅雜交斑、赤點石斑魚和斜帶石斑魚肌肉的粗蛋白含量分別為20.44%、19.49%和20.34%，必需氨基酸含量豐富、比例適宜；青紅赤交斑、赤點石斑魚和斜帶石斑魚的粗脂肪含量分別為1.79%、2.95% 和1.07%，脂肪酸種類豐富，多不飽和脂肪酸含量高，其比例符合理想脂肪酸的標準。3種石斑魚肌肉中礦物質元素種類豐富，其中青紅雜交斑的磷、鉀、鈣含量均高于其父母本，鐵和鈉含量介于父母本之間，鋅和硒含量均低于父母本。由此可見，青紅雜交斑的礦物質種類豐富，不飽和脂肪酸含量較高，人體必需氨基酸含量豐富、比例適宜，部分營養指標高于其父本或母本，顯現出一定的雜交優勢，是具有較高食用價值的優良海水養殖品種。該研究結果為青紅雜交斑的種質評價提供了基礎數據，并為其推廣養殖打下了堅實基礎。

關鍵詞 青紅雜交斑；赤點石斑魚；斜帶石斑魚；質構特性；肌肉營養成分

中圖分類號 S965.334 文獻標識碼 A 文章編號 0517-6611（2024）17-0081-05

doi：10.3969/j.issn.0517-6611.2024.17.017

Analysis and Quality Evaluation of Nutritional Components in the Muscles of Qinhong Hybrid Rockfish（Epinehelus coioides♀×Epinehelus akaara♂） and Its Parents Epinehelus coioides and Epinehelus akaara

YANG Yu-qing，LIU Su，ZHANG Hai-fa et al

（Guangdong Agricultural Technology Extension Center，Huizhou， Guangdong 516081）

Abstract The muscle nutritional components of Qinghong hybrid rockfish （Epinehelus coioides ♀×Epinehelus akaara ♂） and its parents E.coioides and E.akaara were analyzed and evaluated，in order to provide basic data for the identification of germplasm nutritional identification and the preparation of compound feed.The results showed that the muscle texture properties of Qinghong hybrid rockfish （E.coioides ♀×E.akaara♂） were similar to those of E.akaara.The content of crude protein in the muscles of Qinghong hybrid rockfish，E.akaara and E.coioides were 20.44%，19.49% and 20.34%，respectively. The content of essential amino acids was rich and the proportion was suitable. The content of crude fat in the muscles of Qinghong hybrid rockfish，E.akaara and E.coioides were 1.79%，2.95% and 1.07%，respectively.The fatty acids were rich in variety and high in polyunsaturated fatty acids，and the ratio met the standards of ideal fatty acids.There were rich kinds of mineral elements in the muscles of three breeds of rockfish.The contents of P，K and Ca in Qinghong hybrid rockfish were higher than those in its parents.And its contents of Fe and Na were between those of its parents，and its contents of Zn and Se were lower than those of its parents.Therefore，Qinghong hybrid rockfish had abundant kinds of mineral elements，higher content of unsaturated fatty acids，abundant content and suitable proportion of essential amino acids.The content of some nutritional indexes in Qinghong hybrid rockfish was higher than those in its its parent，showing certain hybridization advantages.So Qinghong hybrid rockfish was an excellent mariculture variety with high food value.The results of this study provided the basic data for the germplasm evaluation and popularization breeding of Qinghong hybrid rockfish.

Key words Qinhong hybrid rockfish （Epinehelus coioides ♀×Epinehelus akaara♂） ;Epinehelus akaara;Epinehelus coioides;Texture characteristics;Muscle nutrients

基金項目 2023年鄉村振興戰略專項（粵農農〔2023〕48 號）；廣東省鄉村振興戰略專項（2022-SDY-00-012）；廣東省重點研發領域專項（2021B0202020002）。

作者簡介 楊宇晴（1985—），女，廣東湛江人，高級工程師，博士，從事海水魚類繁育和工廠化循環水健康養殖研究。 通信作者，研究員，博士，從事水產營養與免疫及水產養殖技術研發工作。……