饲料研究2025，Vol.48Issue(1)：67-72,6.DOI:10.13557/j.cnki.issn1002-2813.2025.01.012
表皮生长因子对蛋鸡生产性能、蛋品质及空肠生长发育的影响
Effects of epidermal growth factor on production performance,egg quality,and jejunum growth and development of laying hens
摘要
Abstract
The experiment aimed to study the effects of epidermal growth factor(EGF)on the production performance,egg quality,and jejunum growth and development of laying hens.A total of 240 White Leghorn laying hens,aged 260 days with similar body weight(about 1.25 kg)and similar egg production rate(about 80％),were randomly divided into four groups,each with five replicates,and each replicate consisting of 12 hens.The control group was fed a basal diet,while groups A,B,and C were fed basal diets supplemented with 200,400,and 800 mg/kg EGF,respectively.The pre-test period was seven days,and the formal test period was 42 days.The results showed that compared to the control group,the average egg weight,eggshell strength,and albumen height of hens in groups A,B,and C were significantly increased(P＜0.05).The feed-to-egg ratio in group C was significantly decreased(P＜0.05),while the egg production rate and Haugh unit were significantly increased(P＜0.05).Compared to the control group,the villus height and width of the jejunum of hens in groups B and C were significantly increased(P＜0.05),the expression level of B-cell lymphoma-2(Bcl-2)protein in the jejunum epithelial cells of hens in group B was significantly increased(P＜0.05),while the expression level of cysteine aspartyl protease-3(Caspase-3)protein was significantly decreased(P＜0.05).The study indicates that the addition of EGF to the diet can improve the production performance of laying hens,enhance egg quality,and have certain effects on the morphological structure of the jejunum and apoptosis-related proteins,among which 400 mg/kg EGF group has the best comprehensive effect.关键词
表皮生长因子/蛋鸡/生产性能/蛋品质/空肠Key words
epidermal growth factor/laying hens/production performance/egg quality/jejunum分类
农业科技引用本文复制引用
沈爽,兰忠岐,吕翔宇,王家乡,李鹏..表皮生长因子对蛋鸡生产性能、蛋品质及空肠生长发育的影响[J].饲料研究,2025,48(1):67-72,6.基金项目
湖北省重大攻关项目(项目编号:2023BAA029) （项目编号:2023BAA029）
湖北省科技重大专项(项目编号:2020ABA016) （项目编号:2020ABA016）
现代农业产业技术体系建设专项(项目编号:CRAS-40-s15) （项目编号:CRAS-40-s15）
