摘要
试验旨在探究饮水中添加不同比例柔酸对京粉2号蛋鸡产蛋高峰后期生产性能、蛋品质及血清生化指标的影响。选取556日龄体况正常、体重相近的京粉2号蛋鸡270羽,随机分为3组,每组6个重复,每个重复15羽蛋鸡。对照组(CON组)饮用自来水,柔酸500组和柔酸800组分别在自来水中添加500 mg/kg和800 mg/kg柔酸。预试期7 d,正式试验期42 d。结果显示,与对照组相比,柔酸500组和柔酸800组的不合格蛋率显著降低(P<0.05),平均蛋重显著升高(P<0.05),柔酸800组的料蛋比显著降低(P<0.05)。与对照组相比,柔酸500组和柔酸800组的蛋壳评分显著升高(P<0.05),蛋重、蛋黄重、蛋壳强度、蛋黄比率、蛋黄评分均有升高趋势(P>0.05)。与对照组相比,柔酸800组蛋鸡的血清总蛋白含量显著升高(P<0.05)。与对照组相比,柔酸500组和柔酸800组蛋鸡的血清免疫球蛋白A(IgA)、免疫球蛋白G(IgG)含量显著升高(P<0.05)。研究表明,饮水中添加500 mg/kg和800 mg/kg柔酸对京粉2号蛋鸡生产性能、蛋品质、血清生化指标及免疫功能的提升具有积极作用,且添加800 mg/kg柔酸的效果优于500 mg/kg柔酸。
The purpose of this experiment was to investigate the effects of different proportions of soft acid in drinking water on the production performance,egg quality,and serum biochemical indexes of Jingfen No.2 laying hens at the late of laying peak.A total of 270 Jingfen No.2 laying hens with normal body condition and similar weight at 556 days old were randomly divided into three groups with six replicates in each group and 15 laying hens in each replicate.The control group(CON group)drank tap water.500 mg/kg and 800 mg/kg of soft acid were added to tap water in the soft acid 500 group and 800 group,respectively.The pre-test period was seven days,and the formal test period was 42 days.The results showed that compared with the control group,the unqualified egg rate of the soft acid 500 group and the soft acid 800 group decreased significantly(P<0.05),the average egg weight increased significantly(P<0.05),and the feed to egg ratio of the soft acid 800 group decreased significantly(P<0.05).Compared with the control group,the eggshell scores of soft acid 500 group and soft acid 800 group increased significantly(P<0.05),and the egg weight,yolk weight,eggshell strength,yolk ratio and yolk score all showed an increasing trend(P>0.05).Compared with the control group,the total protein content in serum of the soft acid 800 group increased significantly(P<0.05).Compared with the control group,the levels of serum IgA and IgG in the soft acid 500 group and 800 group increased significantly(P<0.05).The study indicates that adding 500 mg/kg and 800 mg/kg soft acid in drinking water has positive effects on improving production performance,egg quality,serum biochemical indexes,and immune function of Jingfen No.2 laying hens,and the effect of adding 800 mg/kg soft acid is better than that of 500 mg/kg soft acid.
作者
林柏羽
张文辉
梁余妙
凌晨涛
李悦伊
高秋玲
李春
沈水宝
LIN Bo-yu;ZHANG Wen-hui;LIANG Yu-miao;LING Chen-tao;LI Yue-yi;GAO Qiu-ling;LI Chun;SHEN Shui-bao
出处
《饲料研究》
CAS
北大核心
2024年第9期61-65,共5页
Feed Research
基金
“十四五”国家重点研发计划“饲料原料理化特性与加工性能多维关联效应研究(项目编号:2021YFD1300300)”。
关键词
柔酸
京粉2号蛋鸡
生产性能
蛋品质
血清生化指标
soft acid
Jingfen No.2 laying hens
production performance
egg quality
serum biochemical indexes
