饲料工业2026，Vol.47Issue(7)：121-129,9.DOI:10.13302/j.cnki.fi.2026.07.017
饲料中苯丙氨酸对青鱼幼鱼生长、消化、免疫及抗氧化的影响
Effects of Dietary Phenylalanine on Growth,Digestion,Immunity,and Antioxidant of Juvenile Black Carp(Mylopharyngodon iceus)
摘要
Abstract
To investigate the effects of different levels of phenylalanine in feed on the growth perfor-mance,physiology,biochemistry and immune indexes of juvenile black carp(Mylopharyngodon piceus),and to determine the optimal demand for phenylalanine in juvenile herring,so as to provide a theoretical reference for the research and development of compound feed for juvenile herring.In this experiment,0,0.3%,0.6%,0.9%,1.2%and 1.5%phenylalanine were added to the purified feed(The measured values in the feed are 1.52%,1.85%,2.16%,2.46%,2.77%,and 3.09%,corresponding to Phe1,Phe2,Phe3,Phe4,Phe5,and Phe6),and 6 kinds of experimental feeds were configured,and the juveniles of herring with an initial weight of(2.70±0.05)g were fed for 8 weeks.The results showed that the Phe-2 group(phenylalanine content 1.85%)had the highest specific growth rate,weight gain,and feed efficiency,all significantly higher than those of the other groups(P<0.05).The Phe-1 group(phenylalanine content 1.52%)had the lowest whole-fish crude fat content and the highest muscle crude fat content,which was significantly higher than those of other supplementation levels except the Phe-2 group(phenylalanine content 1.85%)(P<0.05),with both whole-fish and muscle ash content reaching the highest values.Variations in phenylalanine con-tent in the feed had no significant effect on moisture and crude protein(P>0.05).In the Phe-2 group(phe-nylalanine content 1.85%),serum acid phosphatase activity was the lowest,significantly lower than that of the other groups except the Phe-3 group(phenylalanine content 2.16%)(P<0.05).The activities of trypsin,lipase,superoxide dismutase and aspartate aminotransferase in hepatopancreas were significantly higher than those in other groups(P<0.05).The appropriate phenylalanine in the feed can improve the digestion ability of herring and promote the growth performance of herring.Based on the specific growth rate and weight gain rate,the appropriate requirements for phenylalanine in feed were 1.84%and 1.83%,respec-tively.关键词
青鱼幼鱼/苯丙氨酸/生长性能/生理生化/需求量Key words
Mylopharyngodon piceus juvenile/phenylalanine/growth performance/physiological and bio-chemical/quantity demand分类
农业科技引用本文复制引用
叶永政,苏梦婷,官其秦,蒲燕,黄欣,杨霞..饲料中苯丙氨酸对青鱼幼鱼生长、消化、免疫及抗氧化的影响[J].饲料工业,2026,47(7):121-129,9.基金项目
国家级大学生创新创业训练计划项目[202410347049] （）
浙江省公益技术研究计划[LGN18C190009] （）
