Comparison of the effects of probiotic-based formulations on growth, feed utilization, blood constituents, cecal fermentation, and duodenal morphology of rabbits reared under hot environmental conditions

IF 1.8 4区 农林科学 Q2 AGRICULTURE, DAIRY & ANIMAL SCIENCE
M. Alagawany, Samar S Bassiony, M. El-Kholy, Karima El-Naggar, Abeer E. El-Metwally, A. Al‐Sagheer
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引用次数: 3

Abstract

Abstract The present study aimed to assess the effects of three probiotic-supplemented diets on growth, cecal fermentation, blood biochemical, and intestinal morphological features in growing rabbits reared under summer conditions. Rabbits were allotted into four groups: G1 rabbits were fed the basal diet (control), G2 rabbits received Enterococcus faecium (EF) and Clostridium butyricum (CB) complexes (1 × 108 and 2.5 × 106 cfu/kg diet, respectively), G3 rabbits were given CB (2.5 × 106 cfu/kg diet) and yeast complexes (1 g/kg diet), and G4 rabbits received EF (2 × 108 cfu/kg diet) and yeast (1 g/kg diet). G2 rabbits exhibited the highest performances in terms of enhanced body weight and weight gain, protein efficiency ratio and feed conversion ratio (P<0.05). Serum total protein, globulin, immunoglobulin M, and highdensity lipoprotein concentrations were higher in probiotic-fed rabbits than those in controls. Additionally, lipid profile parameters were significantly reduced in the probiotic-fed rabbits, with the lowest concentrations measured in G4 rabbits (P<0.05). Rabbits given EF and CB had the highest total volatile fatty acid (VFA ) and propionic acid levels and the lowest ammonia concentrations. Increased villi length and muscular layer thickness and reduced crypt depth were observed in rabbits receiving EF and CB compared with the values obtained in controls (P<0.05). In summary, supplementing fattening rabbit diets with EF and CB, as a novel formulation, might be a promising and easy method to enhance growth performance under hot climate conditions by improving the feed utilization, immune response, serum lipid profile, cecal VFA production, and duodenal morphology.
热环境条件下益生菌制剂对家兔生长、饲料利用、血液成分、盲肠发酵和十二指肠形态影响的比较
摘要本研究旨在评估三种添加益生菌的日粮对夏季条件下饲养的生长兔的生长、盲肠发酵、血液生化和肠道形态特征的影响。将家兔分为四组:G1兔喂食基础日粮(对照),G2兔喂食粪肠球菌(EF)和丁酸梭菌(CB)复合物(分别为1×108和2.5×106cfu/kg日粮),G3兔喂食CB(2.5×106CFU/kg日粮)和酵母复合物(1g/kg日粮。G2兔在增重增重、蛋白效率和饲料转化率方面表现最高(P<0.05)。益生菌喂养兔的血清总蛋白、球蛋白、免疫球蛋白M和高密度脂蛋白浓度高于对照组。此外,益生菌喂养的兔子的脂质分布参数显著降低,G4兔子的浓度最低(P<0.05)。给予EF和CB的兔子的总挥发性脂肪酸(VFA)和丙酸水平最高,氨浓度最低。与对照组相比,接受EF和CB的兔子绒毛长度和肌肉层厚度增加,隐窝深度减少(P<0.05)。总之,添加EF和CB作为一种新的配方,可能是一种有前途且简单的方法,可以通过提高饲料利用率来提高高温气候条件下的生长性能,免疫反应、血脂谱、盲肠VFA产生和十二指肠形态。
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来源期刊
Annals of Animal Science
Annals of Animal Science 农林科学-奶制品与动物科学
CiteScore
4.00
自引率
5.30%
发文量
138
审稿时长
6-12 weeks
期刊介绍: Annals of Animal Science accepts original papers and reviews from the different topics of animal science: genetic and farm animal breeding, the biology, physiology and reproduction of animals, animal nutrition and feedstuffs, environment, hygiene and animal production technology, quality of animal origin products, economics and the organization of animal production.
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