Effects of Octacosanol on Growth Performance, Blood Indexes, Hypoxia Tolerance of Pengze Crucian Carp and Environmental Factors of Aquaculture Water

LIU Jianping; GUO Xiongchang; TU Yue; CAI Lichuang; ZHANG Zhihong; OUYANG Kexian; ZHOU Qiubai

doi:10.3969/j.issn.1006-267x.2021.03.055

2021 , Vol. 33 >Issue 3: 1747 - 1754

DOI: https://doi.org/10.3969/j.issn.1006-267x.2021.03.055

Effects of Octacosanol on Growth Performance, Blood Indexes, Hypoxia Tolerance of Pengze Crucian Carp and Environmental Factors of Aquaculture Water

LIU Jianping ,
GUO Xiongchang ,
TU Yue ,
CAI Lichuang ,
ZHANG Zhihong ,
OUYANG Kexian ,
ZHOU Qiubai

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1. Jiangxi Engineering Laboratory for Functional Feed Additives, Institute of Biological Resources, Jiangxi Academy of Sciences, Nanchang 330096, China;
2. College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang 330045, China

Received date: 2020-08-28

Online published: 2021-03-18

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Abstract

This experiment was conducted to investigate the effects of octacosanol on the growth performance, blood indexes and hypoxia tolerance of Pengze crucian carp and the environmental factors of aquaculture water, so as to provide a theoretical basis for octacosanol used in the aquaculture. A total of 180 healthy Pengze crucian carp with similar body weight [(43.77±0.08) g] were randomly assigned into 5 groups with 4 replicates per group and 9 fish per replicate. The first group (group I) was the control group and fed a basal diet, and the remaining were experimental groups (groups Ⅱ, Ⅲ, Ⅳ and Ⅴ) which fed the basal diet supplementing with 12.5, 25.0, 50.0 and 100.0 mg/kg octacosanol (95.2%), respectively. The formal period lasted for 90 days. The results showed as follows: 1) there were no significant difference in the average body weight (ABW) and specific growth rate (SGR) between the experimental groups and control group (P>0.05). 2) The levels of serum total cholesterol (TC) and low-density lipoprotein cholesterol (LDL-C) in experimental groups were lower than those in control group, and the high-density lipoprotein cholesterol (HDL-C) level in experimental groups was higher than that in control group. The serum LDL-C level of group Ⅲ was significantly different from that of control group (P<0.05). 3) The activity of superoxide dismutase (SOD) in experimental groups was higher than that in control group, the difference was significant between group Ⅳ and control group (P<0.05), and the difference was extremely significant between group Ⅴ and control group (P<0.01); the number of red blood cells (RBC) in experimental groups was lower than that in control group, and the difference was extremely significant between groups Ⅲ, Ⅳ, Ⅴ and control group (P<0.01); the number of white blood cells (WBC) in experimental groups was higher than that in control group, and the difference was significant between group Ⅴ and control group (P<0.05). 4) In different feeding stages, there were no significant differences in ammonia nitrogen and nitrite concentrations in aquaculture water between experimental groups and control group (P>0.05). 5) The survival time after nitrite challenge in group Ⅲ was significantly higher than that in control group (P<0.05). On the whole, supplementation of 25.0 mg/kg octacosanol in the diet can regulate the serum lipid level, improve the immunity and hypoxia tolerance of Pengze crucian carp, and has no negative effects on the growth performance of Pengze crucian carp and the environmental factors of aquaculture water.

Key words： octacosanol; Pengze crucian carp; serum lipid; immunity; hypoxia tolerance

Cite this article

LIU Jianping , GUO Xiongchang , TU Yue , CAI Lichuang , ZHANG Zhihong , OUYANG Kexian , ZHOU Qiubai . Effects of Octacosanol on Growth Performance, Blood Indexes, Hypoxia Tolerance of Pengze Crucian Carp and Environmental Factors of Aquaculture Water[J]. Chinese Journal of Animal Nutrition, 2021 , 33(3) : 1747 -1754 . DOI: 10.3969/j.issn.1006-267x.2021.03.055

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