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      2. 架設生物浮床對池塘養殖魚類生長和肌肉品質特性的影響
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        現代農業產業技術體系建設專項(CARS-46-15);中央高?;究蒲袠I務費專項(2013PY024);湖北省自然科學基金重點項目(2012FFA029)


        Effect of bio-floating bed on growth performance and flesh quality of fish in culture pond
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          摘要:

          選擇草魚主養池塘為研究池塘,分析架設生物浮床的池塘中草魚(Ctenopharyngodon idellus)和團頭魴(Megalobrama amblycephala)的生長和肌肉品質特性。池塘養殖試驗時間為180 d,試驗期間測定草魚和團頭魴生長指標,并利用生化分析和物性分析方法測定肌肉營養成分、系水力和質構特性。試驗結果表明:試驗池塘的草魚和團頭魴的終末體質量高于對照池塘的養殖魚類;試驗池塘2種魚的肥滿度都顯著高于對照池塘;試驗池塘和對照池塘空殼體質量比沒有顯著差異。試驗池塘草魚和團頭魴的肌肉滴水損失和失水率均顯著低于對照池塘,而熟肉率顯著高于對照池塘。試驗池塘的魚類肌肉粗蛋白顯著高于對照池塘;粗脂肪含量都高于對照池塘,在草魚中差異顯著,團頭魴差異不顯著;試驗池塘草魚水分顯著低于對照池塘,團頭魴水分和2種魚灰分都沒有顯著差異。肌肉的質構特性分析表明,試驗池塘草魚的硬度、膠黏性、咀嚼性顯著高于對照池塘;試驗池塘草魚回復性和凝聚性顯著低于對照池塘,試驗池塘團頭魴肌肉彈性顯著高于對照池塘。

          Abstract:

          In this study,we investigated the effect of bio-floating bed on growth and muscle quality of grass carp (Ctenopharyngodon idellus) and blunt snout bream(Megalobrama amblycephala) in ponds.Two modes of culture ponds were chosen:one equipped with bio-floating bed was the experimental pond,and the other without beds was the control pond.At the end of the experiment,we measured the growth parameters,the muscle conventional nutrients,water holding capacity (WHC),and texture characteristics using biochemical and physical methods.The results showed that the final weight of fish cultured in the experimental pond was higher than that in the control pond.The hepatic somatic index of grass carp (1.77%) in the experimental pond was significantly lower than that of the control (2.47%).The condition factors of grass carp and blunt snout bream (1.73 and 2.56,respectively) were significantly higher than those of the control (1.64 and 2.40,respectively).There was no significant difference in the eviscerated weight of both carp and bream between the experimental (91.06 and 88.28,respectively) and the control (89.22 and 88.49,respectively) ponds.The drop loss (14.49% and 10.69,respectively) and water loss rate (17.52% and 10.34%,respectively) of the experimental grass carp and blunt snout bream were significantly lower than those of the control.The cooked rate of the experimental fish was significantly higher than the control.The muscle crude fat content (1.89%) and crude protein content (14.60%) of grass carp in the experimental ponds were significantly higher than those of the control (1.54% and 13.46%),whereas muscle water content (81.68%) of the experimental fish was significantly lower than that (82.65%) of the control.There is no significant difference in muscle ash content between the two groups.Unlike grass carp,only muscle crude protein content (17.23%) of the experimental bream was significantly higher than that (15.90%) of the control.The muscular hardness,gumminess,and chewiness of the experimental carp (5 298.10 g,2 450.78 g and 770.78 g,respectively) were significantly higher than those of the control (3 226.79 g,1 881.43 g and 602.80 g,respectively).The resilience (0.31) and cohesion (0.48) of experimental carp were significantly lower than those (0.43 and 0.58,respectively) of the control.However,only the muscular springiness of the blunt snout bream in the experimental pond was significantly higher than that in the control pond.

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        王景偉,李大鵬,潘宙,郭威,謝從新,何緒剛,亓成龍.架設生物浮床對池塘養殖魚類生長和肌肉品質特性的影響[J].華中農業大學學報,2015,34(4):108-113

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        • 收稿日期:2014-12-26
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        • 在線發布日期: 2015-06-02
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