Effect of dietary replacement of fish meal by poultry by-product meal on the growth and hepatic health in loach (Paramisgurnus dabryanus)

IF 3.2 2区农林科学 Q1 FISHERIES

Aquaculture Reports Pub Date : 2024-10-28 DOI:10.1016/j.aqrep.2024.102441

Yongan Li , Chuanqi Yu , Shuyao Li , Youjie Li , Zhiwen Yuan , Jie Pan , Qi Chen , Yaping Li , Qiubai Zhou , Zirui Wang

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引用次数: 0

Abstract

Our objective was to systematically evaluate the impact of substituting fish meal (FM) with poultry by-product meal (PBM) in fish feed on the growth and hepatic health of loach. Six diets with different levels of PBM (0 %-PBM0, 10 %-PBM10, 30 %-PBM30, 50 %-PBM50, 70 %-PBM70 and 90 %-PBM90 were formulated. After 8 weeks feeding trial, the highest weight gain (WG) was observed in 55 % PBM replacement ratio. Meanwhile, the lowest feed conversion ratio (FCR) were observed in 41.56 % PBM replacement ratio. In addition, dietary PBM induced hepatic oxidative stress including increasing the activity of aminotransferase from PBM0 to PBM50 group, whereas the activity of those enzymes was decreased from PBM50 to PBM90 group. Meanwhile, histological analysis showed that the lipid vacuoles in the liver were increased from PBM0 to PBM50 group, then decreased from PBM50 to PBM90 group (P< 0.05). Moreover, primary bile acid biosynthesis was the only one pathway enriched in top 20 significant pathways by transcriptomic and metabolomic analysis. Specifically, the key bile acid synthesis gene CYP7a1 was down-regulated, while CYP7b1 evinced an up-regulated pattern in PBM50 group compared to PBM0 group. In short, the PBM replacement ratio of up to 50 % in diets was appropriate for rearing loach, while higher PBM replacement ratio resulted in extremely oxidative stress in the liver.

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用家禽副产品粉替代鱼粉对泥鳅生长和肝脏健康的影响

我们的目的是系统地评估在鱼饲料中用家禽副产品粉（PBM）替代鱼粉（FM）对泥鳅生长和肝脏健康的影响。研究人员配制了六种不同PBM含量的日粮（0 %-PBM0、10 %-PBM10、30 %-PBM30、50 %-PBM50、70 %-PBM70和90 %-PBM90）。经过 8 周的饲喂试验，观察到 PBM 替代率为 55 % 时增重（WG）最高。同时，饲料转化率（FCR）在 PBM 替代率为 41.56% 时最低。此外，日粮PBM诱导肝脏氧化应激，包括从PBM0到PBM50组转氨酶活性增加，而从PBM50到PBM90组转氨酶活性降低。同时，组织学分析表明，从 PBM0 组到 PBM50 组，肝脏中的脂质空泡增加，而从 PBM50 组到 PBM90 组，脂质空泡减少（P< 0.05）。此外，通过转录组学和代谢组学分析，初级胆汁酸生物合成是前 20 个重要通路中唯一富集的通路。具体来说，与 PBM0 组相比，PBM50 组的关键胆汁酸合成基因 CYP7a1 下调，而 CYP7b1 则呈现上调模式。总之，日粮中的 PBM 替代率在 50% 以下适合饲养泥鳅，而更高的 PBM 替代率会导致肝脏极度氧化应激。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Aquaculture Reports Agricultural and Biological Sciences-Animal Science and Zoology

CiteScore

5.90

自引率

8.10%

发文量

469

审稿时长

77 days

期刊介绍： Aquaculture Reports will publish original research papers and reviews documenting outstanding science with a regional context and focus, answering the need for high quality information on novel species, systems and regions in emerging areas of aquaculture research and development, such as integrated multi-trophic aquaculture, urban aquaculture, ornamental, unfed aquaculture, offshore aquaculture and others. Papers having industry research as priority and encompassing product development research or current industry practice are encouraged.