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为探究水飞蓟素对黄颡鱼的生长性能、体组成及非特异性免疫指标的影响，试验配制5种等氮(43.96%)、等能(17.94 kJ/kg)且不同水飞蓟素水平(0、50、100、150和200 mg/kg)的配合饲料，每种饲料设置3个重复，每个重复饲喂黄颡鱼30尾，暂养2周后，进行为期8周的饲养试验。结果显示：S3组的FBW、WGR、SGR和PER与S4组无显著性差异(P<0.05)，但均显著高于S1组、S2组和S5组(P<0.05)；S3组与S4的FCR无显著性差异(P<0.05)，但均显著低于S1组、S2组和S5组(P<0.05)；各试验组的SR均显著高于对照组S1组(P<0.05)。各组分的粗蛋白含量无显著性差异(P>0.05)；S3组的粗脂肪和水分含量与S4组和S5组无显著性差异(P>0.05)，但显著低于对照组S1组(P>0.05)；S3组的粗灰分含量显著高于S2组和S1组(P<0.05)，显著低于S4组和S5组(P<0.05)。水飞蓟素对各组的AKP活性无显著性影响(P>0.05)；S3组的SOD、LZM和ACP活性与S4组无显著性差异(P>0.05)，但显著高于S1组、S2组和S5组(P<0.05)。在本试验条件下，饲料中添加水飞蓟素能够提高鱼体的生长性能，降低鱼体粗脂肪含量，提高鱼体非特异性免疫力，且最适添加量为100mg/kg时效果最佳。
Abstract：To investigate the effects of silymarin on growth performance， body composition， and non-specific immune indices of Pelteobagrus fulvidraco， five isonitrogenous (43.96%) and isoenergetic (17.94 kJ/kg) diets with varying silymarin levels (0， 50， 100， 150， and 200 mg/kg) were formulated. Each diet was assigned to three replicates， with 30 Pelteobagrus fulvidraco per replicate. After a 2-week acclimation， an 8-week feeding trial was conducted. Results showed that the S3 group (100 mg/kg) exhibited no significant differences in final body weight (FBW)， weight gain rate (WGR)， specific growth rate (SGR)， or protein efficiency ratio (PER) compared to the S4 group (150 mg/kg) (P > 0.05)， but these parameters were significantly higher than those of the S1 (control)， S2 (50 mg/kg)， and S5 (200 mg/kg) groups (P < 0.05). The feed conversion ratio (FCR) of S3 and S4 groups showed no significant difference (P > 0.05) but was significantly lower than that of S1， S2， and S5 groups (P < 0.05). Survival rate (SR) in all silymarin-supplemented groups was significantly higher than in the control group (P < 0.05). crude protein (CP) content showed no significant differences among groups (P > 0.05). ether extract， crude fat (EE) and moisture contents in S3， S4， and S5 groups were significantly lower than in S1 (P < 0.05)， while crude ash (Ash) content in S3 was significantly higher than in S1 and S2 (P < 0.05) but lower than in S4 and S5 (P < 0.05). Silymarin had no significant effect on alkaline phosphatase (AKP) activity (P > 0.05). Superoxide dismutase (SOD)， lysozyme (LZM)， and acid phosphatase (ACP) activities in S3 and S4 groups were significantly higher than in S1， S2， and S5 groups (P < 0.05). Under these experimental conditions， dietary silymarin improved growth performance， reduced crude fat (EE) content， and enhanced non-specific immunity in Pelteobagrus fulvidraco， with the optimal supplementation level identified as 100 mg/kg.
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基本信息:
中图分类号:S965.199
引用信息:
[1]尹思玲,卢璐,周芷多,等.水飞蓟素对黄颡鱼生长性能、体组成及非特异性免疫指标的影响[J].经济动物学报().
基金信息:
吉林省科技发展计划项目(20240303067NC); 国家特色淡水鱼产业技术体系(CARS-46); 吉林省教委科研基金(JKH20230412KJ)
2025-10-29
2025-10-29
2025-10-29