益生菌和/或益生元甘露寡糖对杂交犊牛生长性能、养分利用率、血液代谢物、粪便细菌及经济效益的影响
The effects of probiotic and/or prebiotic mannan oligosaccharides on growth performance, nutrient utilization, blood metabolites, faecal bacteria, and economics of crossbred calves.
作者信息
Dar A H, Singh S K, Rahman J U, Ahmad S F
机构信息
Department of Livestock Production Management, College of Veterinary & Animal Sciences, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, Uttarakhand, 263145, India.
Department of Animal Genetics and Breeding, College of Veterinary & Animal Sciences, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, Uttarakhand, 263145, India.
出版信息
Iran J Vet Res. 2022;23(4):322-330. doi: 10.22099/IJVR.2022.42992.6259.
BACKGROUND
The ban on antibiotics as growth promoters paved the way for probiotics and prebiotics as growth promoters in animal production.
AIMS
The present study was conducted to evaluate the effect of probiotic and/or prebiotic Mannan oligosaccharides on growth performance, blood biochemical variables, and faecal bacterial count in crossbred calves.
METHODS
Fifteen-day-old crossbred calves (n=24) were divided into four groups, each consisting of six calves, and subjected to different experimental diets. The control group (T) received a basal diet without any additives. The T and T groups received the basal diet and the probiotic (, 2 × 10 cfu/g) @ 1 g/calf per day and prebiotic (Mannan oligosaccharide) @ 4 g/calf per day, respectively. Calves of the T group were offered a basal diet and synbiotic (, 0.5 g + Mannan oligosaccharide, 2 g/calf per day). The feed additives were mixed in milk.
RESULTS
The results of 90 days feeding trial showed that calves of the T and T groups had higher (P<0.05) body weight (BW) gain and dry matter digestibility than the control. Feeding the probiotic showed a positive effect (P<0.05) on body length at the first, second, and third months, compared to the control. The blood serum total protein and globulin concentrations in the T group, on days 30 and 90, and T group, on day 90, were higher (P<0.05) than those of the control. All the treatment groups (T, T, and T) showed a reduction (P<0.05) in faecal coliform and count, compared to the control, on the 15th and 30th days of the study. Additionally, the T group showed a significant coliform count reduction on days 45 and 60 of the study.
CONCLUSION
The dietary addition of , 2 × 10 cfu/g @ 1 g/calf per day and the combination of , 0.5 g + Mannan oligosaccharide, 2 g/calf per day improved growth performance, serum biochemical values, and favourable gut microbiota.
背景
抗生素作为生长促进剂的禁令为益生菌和益生元在动物生产中作为生长促进剂铺平了道路。
目的
本研究旨在评估益生菌和/或益生元甘露寡糖对杂交犊牛生长性能、血液生化指标和粪便细菌计数的影响。
方法
将15日龄的杂交犊牛（n = 24）分为四组，每组六头犊牛，并给予不同的实验日粮。对照组（T）接受不含任何添加剂的基础日粮。T组和T组分别接受基础日粮，并分别添加益生菌（，2×10 cfu/g），每天每头犊牛1 g和益生元（甘露寡糖），每天每头犊牛4 g。T组的犊牛给予基础日粮和合生元（，0.5 g + 甘露寡糖，每天每头犊牛2 g）。饲料添加剂与牛奶混合。
结果
90天饲养试验结果表明，T组和T组犊牛的体重（BW）增加和干物质消化率高于对照组（P < 0.05）。与对照组相比，饲喂益生菌在第1、2和3个月对体长有积极影响（P < 0.05）。在第30天和第90天，T组的血清总蛋白和球蛋白浓度以及在第90天T组的血清总蛋白和球蛋白浓度高于对照组（P < 0.05）。在研究的第15天和第30天，与对照组相比，所有处理组（T、T和T）的粪便大肠菌群和计数均有所减少（P < 0.05）。此外，在研究的第45天和第60天，T组的大肠菌群计数显著减少。
结论
每天每头犊牛添加2×10 cfu/g的和每天每头犊牛添加0.5 g + 2 g甘露寡糖的组合可改善生长性能、血清生化值，并有利于肠道微生物群。
Zotero 插件