经济动物学报2025，Vol.29Issue(6)：474-480,7.DOI:10.13326/j.jea.2025.1838
饲料中添加Zn-MHA对红螯螯虾生长性能、消化酶活性及抗氧化能力的影响
Effects of Zn-MHA on Growth Performance,Digestive Enzyme Activity and Antioxidant Capacity of Australian Red Claw Crayfish
摘要
Abstract
In order to investigate the effects of different zinc additions on the growth,digestion and antioxidant capacity of Cherax quadricarinatus,zinc hydroxymethionine(Zn-MHA)was used as the zinc source and added to the basal diet of the Cherax quadricarinatus at 0,15,30,60,and 90 mg/kg,respectively.The initial body weights of the Cherax quadricarinatus were selected at(0.50±0.01)g,and the diets were fed for 8 weeks to detect the effects of different Zn-MHA additions on the growth,digestion and antioxidant capacity of the Cherax quadricarinatus.MHA additions were tested to determine the effects of different Zn-MHA additions on various indexes of Cherax quadricarinatus.The results showed that the specific growth rate,weight gain rate,hepatopancreatic index,lipase,amylase,pepsin in the hepatopancreas and intestines,GSH-PX,T-SOD,T-AOC,CAT activities in the hepatopancreas and the expression of GPX and CuZn-SOD genes in the hepatopancreas were all significantly(P<0.05)higher at the spiked level of 60 mg/kg,as compared with the control group.MDA content was significantly reduced(P<0.05).It indicated that the addition of Zn-MHA to the feed could promote the growth of Cherax quadricarinatus,improve the digestion and antioxidant capacity of hepatopancreas and intestine,and the best effect was achieved at the addition level of 60 mg/kg.关键词
红螯螯虾/羟基蛋氨酸锌/生长性能/消化酶/抗氧化能力Key words
Cherax quadricarinatus/zinc hydroxymethionine/growth performance/digestive en-zymes/antioxidant capacity分类
农业科技引用本文复制引用
KONG Dehua,JI Yuxiang,LI Kuochen,WANG Qiuju,LIAO Ziyan,ZHANG Long,ZHOU Jingxiang..饲料中添加Zn-MHA对红螯螯虾生长性能、消化酶活性及抗氧化能力的影响[J].经济动物学报,2025,29(6):474-480,7.基金项目
吉林省科技发展计划项目(20210202036NC) （20210202036NC）
