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Asian Journal of Poultry Science

Year: 2014 | Volume: 8 | Issue: 4 | Page No.: 106-114
DOI: 10.3923/ajpsaj.2014.106.114

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Authors


H.M.A. Hassan

Country: Egypt

Amani W. Youssef

Country: Egypt

Eman F. El- Daly

Country: Egypt

Nafisa A. Abd El- Azeem

Country: Egypt

Eman R. Hassan

Country: Egypt

M.A. Mohamed

Country: Egypt

Keywords


  • caecum bacteria
  • feed additives
  • Broiler performance
  • intestinal health
Research Article

Performance, Caecum Bacterial Count and Ileum Histology of Broilers Fed Different Direct-Fed Microbials

H.M.A. Hassan, Amani W. Youssef, Eman F. El- Daly, Nafisa A. Abd El- Azeem, Eman R. Hassan and M.A. Mohamed
An experiment was designed to evaluate the effect of using three different commercial preparations of Direct-Fed Microbials (DFM) being: A mixture of Enterococcus faecium (Protexin®, DFM1), a mixture of Bacillus subtilis (Clostat®, DFM2) and Saccharomyces cerevisiae yeast cells with its fermentation metabolites (Diamond®, DFM3) on performance, carcass characteristics, caecum bacterial count and changes on ileum histology of broilers. A number of 200 Cobb 500 broiler chicks were fed on 4 dietary treatments from 10-36 days of age: Abasal corn-soybean meal diet served as a control treatment with no supplements or supplemented with the recommended levels of the tested products. No significant differences were detected on Body Weight Gain (BWG) among treatments. Chicks fed the control diet consumed more (p<0.05) feed than those fed DFM supplemented diets. No significant differences on Feed Intake (FI) were observed among birds fed the different examined DFM. Birds fed the control diet recorded the worst values (p<0.01) of Feed Conversion Ratio (FCR) among the dietary treatments. Addition of DFM to broiler diets improved efficiency of feed utilization (FCR values) by about 6%. Addition of DFM to broiler diets decreased Escherichia coli and Clostridium spp. count in the ceacum. Also, feeding DFM supplemented diets stimulated histological changes in the ileum villi (height and width along with the number of crypts). These changes reflected a positive effect of the tested products on intestinal efficiency which may explain the improvement in FCR of broilers. It could be concluded that birds fed DFM supplemented diets utilized feed more efficiently than those fed the control diet. The DFM that contain Enterococcus faecium, Bacillus subtilis or Saccharomyces cerevisiae yeast cells with its fermentation metabolites, exert the same effects upon the studied parameters.
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How to cite this article

H.M.A. Hassan, Amani W. Youssef, Eman F. El- Daly, Nafisa A. Abd El- Azeem, Eman R. Hassan and M.A. Mohamed, 2014. Performance, Caecum Bacterial Count and Ileum Histology of Broilers Fed Different Direct-Fed Microbials. Asian Journal of Poultry Science, 8: 106-114.

DOI: 10.3923/ajpsaj.2014.106.114

URL: https://scialert.net/abstract/?doi=ajpsaj.2014.106.114

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