Assessment of biosecurity measures in broiler's farms in the Suez Canal area - Egypt using a seasonal prevalence of Salmonellosis.

Results: Highly significant increases (p<0.01) were recorded in body weight gains in opened and closed-houses during summer; in food conversion ratios in opened-houses during winter and in closed-houses during winter and fall; in performance indices in opened-houses during summer and closed-houses during winter; and in live body weights, carcasses weights, liver, spleen, and bursa’s weights in opened-houses during spring and in closed-houses during fall.

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