摘要
文章旨在探究发酵木薯渣饲料对仔猪生长性能、养分消化率和肠道形态结构的影响。试验将432头(7.79±0.51)kg三元杂交仔猪随机分为4组,每组12个重复,每个重复9头,分别饲喂发酵木薯渣粉添加量为0%(对照组)、1.2%、2.4%和4.8%的试验日粮,预饲期3 d,正试期28 d。结果显示:与对照组相比,添加1.2%和2.4%的发酵木薯渣仔猪末重可显著提高3.09%和5.40%(P<0.05),平均日增重显著提高4.18%和9.23%(P<0.05),添加2.4%的发酵木薯渣料重比显著降低6.63%(P<0.05),0%和4.8%的发酵木薯渣组间生长性能无显著差异(P>0.05)。添加2.4%的发酵木薯渣DM、CF消化率显著提高(P<0.05),添加1.2%和2.4%的发酵木薯渣CP、NDF消化率显著提高(P<0.05)。添加2.4%的发酵木薯渣空肠绒毛长度显著提高(P<0.05),添加1.2%和2.4%的发酵木薯渣组空、回肠V/C值和回肠绒毛长度显著提高(P<0.05)。结论:在本试验条件下,适量添加发酵木薯渣(2.4%)能改善仔猪肠道形态,促进养分吸收,提高仔猪生长性能。
The aim of this experiment was to investigate the effects of fermented cassava residue feed on the growth performance,nutrient digestibility,and intestinal morphology of piglets.432 three-way hybrid piglets(7.79±0.51 kg)were randomly divided into 4 groups,with 12 replicates in each group and 9 piglets per replicate.They were fed with experimental feed containing 0%,1.2%,2.4%,and 4.8%fermented cassava residue powder,respectively.The experiment was conducted for 3 days before and 28 days before.The results showed that adding 1.2%and 2.4%fermented cassava residue significantly increased the final weight of piglets by 3.09%and 5.40%(P<0.05),and the average daily weight gain by 4.18%and 9.23%(P<0.05),while adding 2.4%fermented cassava residue significantly reduced the feed to weight ratio by 6.63%(P<0.05).There was no significant difference in growth performance between the 0%and 4.8%fermented cassava residue groups(P>0.05).Adding 2.4%fermented cassava residue significantly improved the digestibility of DM and CF(P<0.05),while adding 1.2%and 2.4%fermented cassava residue significantly improved the digestibility of CP and NDF(P<0.05).The addition of 2.4%fermented cassava residue significantly increased the villus length of the jejunum(P<0.05),while the addition of 1.2%and 2.4%fermented cassava residue significantly increased the V/C values and villus length of the jejunum and ileum(P<0.05).Conclusion:Moderate addition of fermented cassava residue(2.4%)can improve the intestinal morphology,promote nutrient absorption,and enhance the growth performance of piglets.
作者
王红梅
WANG Hongmei(Junan County Testing and Inspection Center,Linyi,Shandong Province 276600,China)
出处
《中国饲料》
北大核心
2025年第14期77-80,共4页
China Feed
关键词
仔猪
发酵木薯渣
生长性能
养分表观消化率
肠道形态
piglet
fermented cassava residue
growth performance
apparent digestibility of nutrients
intestinal morphology
