笼养华北柴鸡饲粮添加硫酸软骨素(CS)对鸡蛋中CS含量和蛋品质的影响  

Effects of dietary chondroitin sulfate(CS)supplementation on CS content in eggs and egg quality in caged north China Chai hens

作　　者：刘全瑞 谢艾伶 刘鼎阔 李源 任超琪 赵昕 李留安 于晓雪 LIU Quanrui;XIE Ailing;LIU Dingkuo;LI Yuan;REN Chaoqi;ZHAO Xin;LI Liuan;YU Xiaoxue

机构地区：[1]天津农学院动物科学与动物医学学院,农业农村部智慧养殖重点实验室(部省共建),天津市农业动物繁育与健康养殖重点实验室,天津300392 [2]鼎正新兴生物技术(天津)有限公司,天津市生物饲料添加剂企业重点实验室,天津300383

出　　处：《饲料研究》2025年第5期34-37,共4页Feed Research

基　　金：天津市优秀企业科技特派员项目(项目编号:22YDTPJC00990);天津市第一批青年科技人才第三层次人选项目(项目编号:QN20230301);天津市优秀农业科技特派员项目(23ZYCGSN00250、24ZYCG8N00060)。

摘　　要：试验旨在研究蛋鸡饲粮中添加硫酸软骨素(CS)对鸡蛋中CS含量和蛋品质的影响。将210只70周龄华北柴鸡随机分为5组,每组14个重复,每个重复3只鸡。对照组饲喂基础饲粮,试验1~4组分别在基础饲粮中添加0.25%、0.50%、1.00%和2.00%的CS。试验期28 d。结果显示:试验第14天,0.25%CS组蛋黄中CS含量显著低于对照组(P<0.05)。试验第28天,0.50%CS组和1.00%CS组蛋黄中CS含量显著高于对照组(P<0.05)。试验第7天,0.25%CS组和0.50%CS组蛋清中CS含量显著高于对照组(P<0.05)。试验第28天,1.00%CS组和2.00%CS组蛋清比率显著高于对照组(P<0.05)。0.25%CS组和0.50%CS组蛋壳比重、蛋壳颜色显著低于对照组(P<0.05)。2.00%CS组蛋黄颜色显著高于其他组(P<0.05)。0.50%CS组、1.00%CS组和2.00%CS组哈氏单位均显著高于对照组和0.25%CS组(P<0.05)。研究表明,蛋鸡饲粮中添加1.0%和2.0%的CS可提高蛋黄中CS含量,2.00%的CS可提高蛋黄颜色及哈氏单位,综合考虑推荐蛋鸡饲粮中CS添加剂量为1.00%。This study aimed to investigate the effects of dietary chondroitin sulfate(CS)supplementation on CS content in eggs,egg quality in laying hens.A total of 210 seventy-week-old north China Chai hens were randomly divided into five groups,each with 14 replicates,and three hens per replicate.The control group was fed a basal diet,while groups 1~4 were supplemented with 0.25%,0.50%,1.00%,and 2.00%CS in the basal diet,respectively.The trial lasted 28 days.The results showed that on the 14th day,yolk CS content in the 0.25%CS group was significantly lower than in the control group(P<0.05).On the 28th day,yolk CS content in the 0.50%and 1.00%CS groups was significantly higher than in the control group(P<0.05).On the 7th day,egg white CS content in the 0.25%and 0.50%CS groups was significantly higher than in the control group(P<0.05).On the 28th day,the egg white ratio in the 1.00%and 2.00%CS groups was significantly higher than in the control group(P<0.05).The 0.25%and 0.50%CS groups exhibited significantly lower eggshell specific gravity and eggshell color compared to the control group(P<0.05).Yolk color in the 2.00%CS group was significantly higher than in other groups(P<0.05).Haugh units in the 0.50%,1.00%,and 2.00%CS groups was significantly higher than in the control and 0.25%CS groups(P<0.05).The study suggests that adding 1.00%or 2.00%CS to layer diets increases yolk CS content,while 2.00%CS enhances yolk color and Haugh units.A comprehensive evaluation recommends a CS supplementation level of 1.00%in laying hens diets.

关 键 词：蛋鸡 硫酸软骨素 功能性鸡蛋 蛋品质 

分 类 号：S831[农业科学—畜牧学]