摘要
试验通过在饮水中添加不同剂量的氯化钠(NaCl)探讨高盐饮水对肉鸡生长性能、器官指数及血清抗氧化指标的影响。选用260羽1日龄肉鸡,饲喂至7日龄后选取体重均衡、精神状态良好的240羽鸡苗,随机分为4组,每组3个重复,每个重复20羽。对照组饮水中未添加NaCl,各试验组分别在饮水中添加1、2、3 g/L的NaCl。结果显示:试验第28 d时,与对照组相比,3个试验组肉鸡的平均日饮水量和料重比均显著上升(P<0.05);随着饮水中NaCl浓度上升,肉鸡的平均日增重显著降低(P<0.05);T3组肉鸡肝脏重量显著低于对照组(P<0.05)。随着饮水中NaCl浓度升高,肉鸡死亡率增高。各试验组肉鸡的脾脏重量、脾脏指数均显著低于对照组(P<0.05)。3个试验组肉鸡均出现心脏肥大现象,T2组与T3组肉鸡心脏指数达到腹水综合征范围。各试验组肉鸡血清谷胱甘肽过氧化物酶(GSH-Px)、总超氧化物歧化酶(T-SOD)的活性及总抗氧化能力(T-AOC)均显著低于对照组(P<0.05),T2组、T3组肉鸡血清丙二醛(MDA)含量显著高于对照组(P<0.05)。研究表明,饮水中添加1 g/L以上浓度NaCl会导致肉鸡生长性能下降,料重比增加,降低免疫器官指数及抗氧化性能。
The effects of high-salt drinking water on growth performance,organ index and serum antioxidant index of broilers were studied by adding different doses of sodium chloride(NaCl)to drinking water.260 one-day-old broilers were selected.After feeding to 7-day-old,240 chickens with balanced weight and good mental state were randomly divided into four groups with three replicates in each group and 20 feathers in each replicate.No NaCl was added to the drinking water of the control group,but 1,2,3 g/L NaCl was added to the drinking water of each experimental group.The results showed that on the 28th day of the experiment,the average daily water consumption and feed-weight ratio of broilers in the three experimental groups were significantly higher than those in the control group(P<0.05).With the increase of NaCl concentration in drinking water,the average daily gain of broilers decreased significantly(P<0.05).Liver weight in T3 group was significantly lower than that in the control group(P<0.05).With the increase of NaCl concentration in drinking water,the mortality of broilers increased.The spleen weight and spleen index of each experimental group were significantly lower than those of the control group(P<0.05).Cardiac hypertrophy was found in all three groups,and the cardiac index of T2 group and T3 group reached the range of ascites syndrome.The activities of serum glutathione peroxidase(GSH-Px),total superoxide dismutase(T-SOD),and total antioxidant capacity(T-AOC)of broilers in each experimental group were significantly lower than those in the control group(P<0.05),while the contents of serum malondialdehyde(MDA)in T2 group and T3 group were significantly higher than those in the control group(P<0.05).The study indicates that adding more than 1 g/L NaCl in drinking water can decrease the growth performance of broilers,increase the feed-to-weight ratio,and reduce the immune organ index and antioxidant performance.
作者
王之超
何江
黄俊程
孟竹
高瑞环
齐萌
冯昕炜
Wang Zhichao;He Jiang;Huang Juncheng;Meng Zhu;Gao Ruihuan;Qi Meng;Feng Xinwei(College of Animal Science,Tarim University,Xinjiang Alar 843300;Engineering Laboratory of Tarim Animal Diseases Diagnosis and Control of Xinjiang Corps,Xinjiang Alar 843300)
出处
《现代畜牧兽医》
2024年第5期31-36,共6页
Modern Journal of Animal Husbandry and Veterinary Medicine
基金
国家自然科学基金地区科学基金项目(32060785)。
关键词
高盐饮水
生长性能
免疫器官
抗氧化
肉鸡
High-salt drinking water
Growth performance
Immune organ
Antioxidant
Broiler
