How to control the broiler pathogenic intestinal flora under normal or heat stress conditions [electronic resouce]

Includes references.

An experiment was performed to reduce the intestinal pathogenic bacteria populations of broiler chicks under normal or heat stress conditions by using medical herbs (neem leaves), probiotic (biogen) or sand as a litter. A total of 240, unsexed one week old Hubbard chicks, were assigned into four equal groups, 60 chicks in each with two replicate in floor pens: 3 of4 groups were fed an experimental diet and used the wheat straw as a litleI', thus, inoculation of 2g biogen (bacteria concentration as probiotic) / kg offeed, 200 mg neem leaves powder (medical plant) / kg of feed or without inoculation (control), re;,pectively. Chicks in the fourth . group were fed control diet and used sand as a liller. At 35 days of age, each group was divided into two equal sub-groups, the first was kept under normal conditions (23 'C) while, the second sub-group was exposed to 38°C for 3 hI's dailyfor 6 days from 35 to 40 days ofage with 70 %re/atil'e humidit).

Summary in Arabic.

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