饮水中添加二甲酸钾对土杂鸡生产性能、免疫功能和抗氧化能力的影响  

Effects of Potassium Dicarboxylate in Drinking Water on Production Performance,Immune Function and Antioxidant Capacity of Native Hybrid Chickens

作　　者：廖维连 Liao Weilian(JiangLe animal disease prevention and control center,Sanming,353300,Fujian)

机构地区：[1]将乐县动物疫病预防控制中心,福建三明353300

出　　处：《中国畜禽种业》2023年第9期96-104,共9页The Chinese Livestock and Poultry Breeding

摘　　要：该试验旨在研究饮水中添加二甲酸钾对土杂鸡生产性能、免疫功能和抗氧化能力的影响。试验选取1日龄体重相近、健康的公土杂鸡480只,随机分为4个组,每组6个重复,每个重复20只鸡,对照组正常饮水,试验1、2、3组分别在饮水中添加350、550、750mg/L二甲酸钾,试验期54d。结果表明:(1)各试验组与对照组在平均日采食量、平均日增重、料重比、免疫器官指数等指标均无显著影响(P>0.05)。(2)饮水中添加不同剂量的二甲酸钾均能显著提高鸡十二指肠、空肠、回肠的绒毛高度(P<0.05),试验1、3组可显著提高鸡十二指肠的隐窝深度(P<0.05)。与对照组相比,试验1组可显著提高回肠的肠绒毛高度/隐窝深度值,试验2组可显著提高十二指肠和空肠和的肠绒毛高度/隐窝深度值(P<0.05);与对照组相比,试验1、2组均能显著提高鸡血清总蛋白浓度、免疫球蛋白A、免疫球蛋白G(P<0.05),试验2、3组均能显著提高鸡血清白蛋白浓度、鸡肿瘤坏死因子-α浓度、白细胞介素-6(P<0.05)。(3)与对照组相比,试验2、3组显著提高鸡DPPH自由基清除能力(P<0.05),极显著提高鸡SOD活力、抑制羟自由基能力(P<0.01)。综上,在饮水中添加二甲酸钾对土杂鸡的生产性能无影响,但可提高鸡免疫功能和抗氧化能力,其中以添加550mg/L效果较好。This experiment was conducted to study the effects of potassium formate in drinking water on production performance,immune function,and antioxidant capacity of local hybrid chickens.A total of 480 one-day-old healthy hybrid chickens with similar body weight were selected and randomly divided into 4 groups with 6 replicates in each group and 20 chickens in each replicate.The control group was given normal drinking water,and the experimental groups 1,2,and 3 were supplemented with 350,550 and 750 mg/L potassium diformate in drinking water,respectively.The experiment lasted for 54 days.The results showed that:①There was no significant difference in average daily feed intake,average daily gain,feed-to-gain ratio,and immune organ index between the experimental groups and the control group(>0.05).②Adding different doses of potassium formate in drinking water could significantly increase the villus height of the duodenum,jejunum,and ileum of chickens(<0.05),and groups 1 and 3 could significantly increase the crypt depth of the duodenum of chickens(<0.05).Compared with the control group,the intestinal villus height/crypt depth value of the ileum was significantly increased in experimental group 1,and the intestinal villus height/crypt depth value of the duodenum and jejunum was significantly increased in experimental group 2(<0.05).Compared with the control group,the serum total protein concentration,immunoglobulin A,and immunoglobulin G were significantly increased in the experimental groups 1 and 2(<0.05).The serum albumin concentration,tumor necrosis factor-αconcentration,and interleukin-6 were significantly increased in the experimental groups 2 and 3(<0.05).③Compared with the control group,experimental groups 2 and 3 significantly increased the DPPH free radical scavenging ability of chickens(<0.05),significantly increased the SOD activity,and inhibited the hydroxyl radical ability of chickens(<0.01).In conclusion,the the addition of potassium formate in drinking water had no effect on the production performa

关 键 词：鸡 二甲酸钾 生产性能 免疫功能 抗氧化能力 

分 类 号：S831.5[农业科学—畜牧学]