National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
A study was conducted to evaluate the evolution of cloacal bacteria and fungi in Brahma (Gallus gallus domesticus) chickens fed with a Chromolaena odorata supplement. A total of 180 cloacal samples were collected over a 10 weeks period from August to October 2020. Three feed rations (R0, R1 and R2) containing 0, 1 and 2% dried leaves of Chromolaena odorata respectively were tested. Studied microorganisms isolated were total coliforms, Escherichia coli, Salmonella sp., klebsiella sp., yeasts and molds. Bacterial load varied from 10 x104 to 5236 x104 CFU/g for R0, from 64 x104 to 12317 x104 CFU/g for R1 and from 1 x104 to 4292 x104 CFU/g for R2 Whereas fungal load fluctuated between 34 x104 and 3786 x104CFU/g for R0, between 153 x104 and 8988 x104 CFU/g for R1 and between 8 x104 and 18154 x104 CFU/g for R2. This flora was subject to wide temporal fluctuations. The analysis of these results considered the interaction of the different variables (gender, weight and time). Apart from the time factor (weeks) which significantly (p˂0.05) influenced the abundance of Escherichia coli, yeast and mold, no other factor had a significant effect on the evolution of the cloacal microflora of these birds. However, linear relationships between the factors ration, gender, time and weight evolution of microbial cells revealed a significant effect (p˂0.05). This action resulted in an improvement of the feed conversion ratio and an increase in live weight of the studied birds which was most marked for the R1 ration and in males.
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