摘要
试验旨在探讨两种有机铁(小肽铁和卟啉铁)对断奶仔猪生长性能、血液指标和粪便菌群的影响。选取平均体重(9.34±0.06) kg的断奶仔猪90头,随机分为3组,每组3个重复,每个重复10头仔猪。对照组饲喂基础饲粮,试验组分别在基础饲粮中添加400 g/t小肽铁、500 g/t卟啉铁。预试期5 d,正式试验期45 d。结果显示:与对照组相比,小肽铁组平均日增重提高了12.53%(P<0.05);小肽铁组、卟啉铁组仔猪血红蛋白含量显著增加(P<0.05)。小肽铁组仔猪平均红细胞体积显著高于对照组和卟啉铁试验组(P<0.05)。与对照组相比,小肽铁组和卟啉铁组血清尿素氮含量显著下降(P<0.05)。与对照组相比,两种有机铁增加了粪便中乳酸杆菌属比例,降低了梭菌属等相对丰度,增加了断奶仔猪粪便中丙酸和丁酸含量。研究表明,饲粮中添加小肽铁和卟啉铁能够改善断奶仔猪血液指标、粪便菌群和短链脂肪酸含量。结合生产性能分析,400 g/t小肽铁效果较好。
The purpose of the experiment was to investigate the effects of two kinds of organic iron(small peptide iron and porphyrin iron)on growth performance,blood indexes,and fecal flora of weaned piglets.Ninety weaned piglets with an average weight of(9.34±0.06)kg were randomly divided into three groups with three replicates in each group and 10 piglets in each replicate.The control group was fed with basal diet,while the experimental group was fed with 400 g/t small peptide iron and 500 g/t porphyrin iron,respectively.The pre-test period was five days,and the formal test period was 45 days.The results showed that compared with the control group,the average daily gain of the small peptide iron group increased by 12.53%(P<0.05).The hemoglobin content of piglets in the small peptide iron group and porphyrin iron group increased significantly(P<0.05).The average erythrocyte volume of the small peptide iron group was significantly higher than that of the control group and porphyrin iron group(P<0.05).Compared with the control group,the content of serum urea nitrogen in the small peptide iron group and porphyrin iron group decreased significantly(P<0.05).Compared with the control group,the two kinds of organic iron increased the proportion of Lactobacillus in feces,decreased the relative abundance of Clostridium,and increased the content of propionic acid and butyric acid in feces of weaned piglets.The study indicates that adding small peptide iron and porphyrin iron in diet can improve blood indexes,fecal flora,and short chain fatty acid content of weaned piglets in different degrees.Combined with production performance analysis,adding 400 g/t small peptide iron in diet has a better effect.
作者
李桂霞
范东良
LI Gui-xia;FAN Dong-liang
出处
《饲料研究》
CAS
北大核心
2024年第11期34-38,共5页
Feed Research
基金
河北省技术创新引导计划项目(项目编号:20822802D)
石家庄市大众创业万众创新专项资金创新型企业建设补助经费(项目编号:213790275H)。
关键词
卟啉铁
小肽铁
断奶仔猪
生长性能
血液指标
粪便菌群
porphyrin iron
small peptide iron
weaned piglets
growth performance
blood indexes
fecal flora
作者简介
第一作者:李桂霞,硕士,畜牧师,研究方向为微生物发酵饲料;通信作者:范东良,大学,畜牧师。
