| Abstrakt: |
The aim of this study was to determine the effect of β-mannanase, lysolecithin and probiotics addition to female quail ration in some intestinal histological characteristics and Lactobacillus, E. coli number. Six hundred of one-day-old quail birds were used in this study. The birds were randomly assigned to four treatments with 3 replicates and each replicate 20 birds. In three periods, the first period (1-7) weeks, the second period (7-13 weeks) and the third period (1-13 weeks), the treatments were : control was fed on a standard ration, the second, third and fourth treatment was added to the ration the β-mannanase, Lysolecithin and probiotics 0.5g/kg ration were added, respectively. The results showed a significant improvement (p ≤ 0.05) in the villi length and width compared to control. This was reflected by the significant improvement (p≤0.05) in the villi apparent surface area of the villi. The best results of the mentioned characteristics were recorded in the third and second periods and the best overlap between treatment and period in the treatment of the probiotic at the third and second periods. Both β-mannanase and probiotic treatments significantly (p≤0.05) exceeded the control group in crypt depth and goblet cell percentage, while the third period was significantly exceed (p≤0.05) in the crypt width and depth and the goblet cell percentage and recorded the best overlap of the characteristics mentioned in the probiotic treatment for the third period and the treatment of â-mannanase and probiotic significantly in the intestinal epithelium height on control and lysolecithin group, while the best results for this characteristic were recorded in the third period and was the best overlap in the first period of the probiotics. As for the intestinal content of the microorganisms, probiotics, β-mannanase and lysolecithin groups showed a significant decrease (p≤0.05) in the E. coli number compared with control, a significant increase (p≤0.05) in the Lactobacillus number in probiotic, β-mannanase and lysolecithin groups compared to control, the first period show significant decrease (p≤0.05) in the E.coli number. While the third period showed the best increase in the Lactobacillus number and the first period of the probiotics showed the best overlap between the treatments and periods in E. coli number and showed the third period of the probiotic best overlap for the Lactobacillus. We concluded from this study that β-mannanase, lysolecithin and probiotic addition to female quail an improvement in the intestinal environment represented by some histological characteristics and intestinal content of E. coli and Lactobacillus content. [ABSTRACT FROM AUTHOR] |
