留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码
付运银, 郑维友, 张恒, 阮国良, 刘玉林, 柴毅, 方刘. 开放流水养殖模式下暂养时间对黄颡鱼肌肉品质和营养价值的影响[J]. 水生生物学报, 2023, 47(8): 1342-1352. DOI: 10.7541/2023.2022.0075
引用本文: 付运银, 郑维友, 张恒, 阮国良, 刘玉林, 柴毅, 方刘. 开放流水养殖模式下暂养时间对黄颡鱼肌肉品质和营养价值的影响[J]. 水生生物学报, 2023, 47(8): 1342-1352. DOI: 10.7541/2023.2022.0075
FU Yun-Yin, ZHENG Wei-You, ZHANG Heng, RUAN Guo-Liang, LIU Yu-Lin, CHAI Yi, FANG Liu. PURGING TIME ON MUSCLE QUALITY AND NUTRITIONAL VALUE OF YELLOW CATFISH (PELTEOBAGRUS FULVIDRACO) UNDER OPEN FLOWING WATER MODE[J]. ACTA HYDROBIOLOGICA SINICA, 2023, 47(8): 1342-1352. DOI: 10.7541/2023.2022.0075
Citation: FU Yun-Yin, ZHENG Wei-You, ZHANG Heng, RUAN Guo-Liang, LIU Yu-Lin, CHAI Yi, FANG Liu. PURGING TIME ON MUSCLE QUALITY AND NUTRITIONAL VALUE OF YELLOW CATFISH (PELTEOBAGRUS FULVIDRACO) UNDER OPEN FLOWING WATER MODE[J]. ACTA HYDROBIOLOGICA SINICA, 2023, 47(8): 1342-1352. DOI: 10.7541/2023.2022.0075

开放流水养殖模式下暂养时间对黄颡鱼肌肉品质和营养价值的影响

PURGING TIME ON MUSCLE QUALITY AND NUTRITIONAL VALUE OF YELLOW CATFISH (PELTEOBAGRUS FULVIDRACO) UNDER OPEN FLOWING WATER MODE

  • 摘要: 文章旨在探索开放流水养殖模式下, 暂养对黄颡鱼(Pelteobagrus fulvidraco)肌肉品质和营养价值的影响。试验选用处于快速生长期的大规格鱼种(15.69±2.28) g黄颡鱼为试验对象, 随机分为4组, 分别暂养0(对照组)、20d、30d和40d, 每组3个重复。试验期间投喂黄颡鱼配合饲料, 在养殖过程中定期测量水质。在试验结束后对其生长性能、血清生化指标、肌肉氨基酸、脂肪酸组成及质构特性进行比较。结果显示: (1)暂养期间试验池的水质氨态氮含量在0.03—0.05 mg/L, 亚硝态氮含量均在0.01 mg/L, 溶氧水平均超过9.0 mg/L。(2)暂养时间延长, 黄颡鱼末体重和增重率呈上升趋势, 特定生长率呈下降趋势, 各组间差异显著(P<0.05); 暂养20d、30d和40d组的成活率、肥满度、肝体比及脏体比组间无显著性差异(P>0.05)。(3)暂养30d和40d组血清中的白蛋白和总蛋白含量显著高于对照组和暂养20d组(P<0.05), 但其γ-谷氨酰基转移酶和碱性磷酸酶活性、总胆固醇和总胆汁酸含量显著低于对照组和暂养20d组(P<0.05); 对照组、暂养20d和30d组血清中的总胆红素含量和谷草转氨酶活性显著高于暂养40d组(P<0.05d); 暂养30d和40d组黄颡鱼血清中肌酐含量和尿酐比显著低于对照组和暂养20d组(P<0.05)。(4)暂养30d和40d组黄颡鱼肌肉中的粗蛋白质含量显著高于对照组和暂养20d组(P<0.05), 但粗脂肪含量显著低于对照组和暂养20d组(P<0.05); (5)暂养30d和40d组氨基酸总量(ΣAA)、必需氨基酸总量(ΣEAA)、非必需氨基酸总量(ΣNEAA)、鲜味氨基酸总量(ΣDAA)和必需氨基酸指数(EAAI)显著高于对照组和暂养20d组(P<0.05), 且4组黄颡鱼肌肉中第一限制性氨基酸均为苯丙氨酸+酪氨酸。(6)暂养40d组黄颡鱼肌肉中二十碳五烯酸+二十二六烯酸(EPA+DHA)、单不饱和脂肪酸(MUFA)、多不饱和脂肪酸(PUFA)含量显著高于其他组(P<0.05)。(7)暂养40d组黄颡鱼肌肉的硬度和胶黏性显著高于其他组(P<0.05), 弹性、咀嚼性和回复性显著高于对照组和暂养20d组(P<0.05)。在试验设置暂养条件下, 暂养40d可更好提升黄颡鱼肌肉品质和营养价值, 同时增加氨基酸和脂肪酸的含量, 减少池塘养殖鱼体中存在的土腥味, 增加黄颡鱼养殖效益。

     

    Abstract: This experiment was conducted to investigate the effect of purging time on muscle quality and nutritional value of yellow catfish (Pelteobagrus fulvidraco) under open flowing water mode. Yellow catfish of (15.69±2.28) g at the rapid growth stage were randomly divided into 4 groups with 3 replicates in each group. The yellow catfish were temporarily fed for 0 (control), 20d, 30d and 40d respectively. During the experiment, Pelteobagrus fulvidraco were fed with a compound diet, and the water quality was regularly measured during the breeding process. After the experiment, the growth performance and serum biochemical indexes were measured; the composition of amino acids, fatty acids and textural properties in muscle were compared. The results showed as follows: 1) During the purging time period, the content of ammonia nitrogen in the water of the test tank was between 0.03—0.05 mg/L, the content of nitrite nitrogen was 0.01 mg/L, and the dissolved oxygen level exceeded 9.0 mg/L. 2) With the extension of purging time, the final body weight (Wt) and weight gain rate (WGR) of yellow catfish showed an increasing trend, while the specific growth rate (SGR) showed a decreasing trend, with significant differences among groups (P<0.05). There were no significant differences in survival rate (SR), condition factor (CF), hepatosomatic index (HSI) and viscerosomatic index (VSI) of purging time groups for 20d, 30d and 40d (P>0.05). 3) The contents of albumin (ALB) and total protein (TP) in serum of purging time 30d and 40d group were significantly higher than those of control group and purging time of 20d group (P<0.05), but the activities of gamma-glutamyltransferase (γ-GGT), alkaline phosphatase (ALP), the contents of total cholesterol (TC) and total bile acids (TBA) were significantly lower than those of the control group and the purging time of 20d group; serum total bilirubin (TBIL) content and aspartate aminotransferase (AST) activity in the control group, the purging time of 20d and 30d groups were significantly higher than those of the purging time group for 40d (P<0.05). The content of serum creatinine (CRE) and urine creatinine ratio (UCR) ofPelteobagrus fulvidraco in the purging time groups for 30d and 40d were significantly lower than those in the control group and the purging time for 20d group (P<0.05). 4) The crude protein content in muscle of purging time groups for 30d and 40d was significantly higher than that of control group and purging time group for 20d (P<0.05), but the crude lipid content was significantly lower than that of control group and purging time group for 20d (P<0.05). 5) The total amount of amino acids (ΣAA), total essential amino acids (ΣEAA), total non-essential amino acids (ΣNEAA), total umami amino acids (ΣDAA) and essential amino acid index (EAAI) in the 30d and 40d purging time groups were significantly higher than those in the control group and the 20d purging time group (P<0.05). The first limiting amino acid in muscle of four groups was all phenylalanine+tyrosine. 6) The contents of C20:5n-3+C22:6n-3 (EPA+DHA), monounsaturated fatty acid (MUFA) and polyunsaturated fatty acid (PUFA) in muscle of yellow catfish in purging time group for 40d were significantly higher than those in other groups (P<0.05). 7) The muscle hardness and gumminess properties of purging time group for 40d was significantly higher than those in other groups (P<0.05), and the muscle springiness, chewiness and resilience were significantly higher than those of control group and purging time group for 20d (P<0.05). In this experiment, under the conditions of temporary cultivation, purging time for 40d can improve the muscle quality and nutritional value of yellow catfish, increase the contents of amino acids and fatty acids, reduce the earthen smell of pond cultured fish, and increase the aquaculture benefit ofPelteobagrus fulvidraco.

     

/

返回文章
返回