Effects of dietary lipid levels on lipid accumulation and health status of adult Onychostoma macrolepis
View/Open
Publication date
2023-08-18ISSN
2096-1758
Abstract
The effects of different dietary lipid levels on lipid accumulation, inflammatory response, serum bio-chemical index and histological features of intestine and hepatopancreas of O. macrolepis was experimentally evaluated in an eight-weeks study. Fish (initial weight 50.11 ± 2.86 g) were fed with five iso-nitrogenous diets (around 390 g/kg protein) varying with lipid level (5%, 7%, 9%, 11%, 13%, being LL5, LL7, LL9, LL11, and LL13 respectively) in triplicates. Results showed that the content of crude lipid in carcass and hepatopancreas were not affected by dietary lipid levels (P > 0.05). Serum ALT, TP, HDL-c and MDA, etc., were not significantly affected by diets (P > 0.05), while serum total antioxidant capacity in LL9 and LL11 groups were significantly higher than the other groups (P < 0.05). Histological features of hepatopancreas and intestine showed no significant difference among the five diets (P > 0.05), while the height of intestine villus showed the higher trend in LL9 compared with other groups. The relative expression of lipid metabolism related genes (ppar α, cpt-1α, fas, and hsl) and immune response related genes (tlr 22, nrf 2, tnfα, and il-γ) in the hepatopancreas of fish fed diets differing in their crude lipid levels were not significantly different (P > 0.05). The results suggested that a proper dietary lipid level of 9%–11% could maintain higher antioxidant and health status of adult O.macrolepis.
Document Type
Article
Document version
Published version
Language
English
Subject (CDU)
637 - Produce of domestic (farmyard) animals and game
Pages
9
Publisher
Elsevier
Is part of
Aquaculture and Fisheries
Citation
Zhou, Jishu, Peng Feng, Yang Li, Hong Ji, and Enric Gisbert. 2024. “Effects of dietary lipid levels on lipid accumulation and health status of adult Onychostoma macrolepis”. Aquaculture and Fisheries 9(5):795-803. doi:10.1016/j.aaf.2023.07.008.
Program
Aqüicultura
This item appears in the following Collection(s)
- ARTICLES CIENTÍFICS [2680]
Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by-nc-nd/4.0/