Effects of Methenamine Feeding Regime on Growth Performances, Gut Microbiota, Organs Histology and Haemato-Biochemical Profile of Broiler Chickens

Microbial resistance in livestock has become a subject of great concern public and scientific interest. This study was designed to assess the effects methenamine feeding regime on growth performances broilers chickens. For this purpose, 120 chicks Cobb 500 strain, including 60 males females 21 days old with an average weight 639 g 584 respectively were used. They randomly distributed experimental units 2 same sex per cage until 49 days. Methenamine incorporated feed (TA), acidified (TEa) non (TE) water compared antibiotic medicated diet as positive control (T0+) ration without any supplement negative (T0). The main results showed that, regardless regime, significantly (p 0.05) increased inteake, body weight, gain decreased conversion ratio. whatever induced significant increase lactic acid bacteria counts coliforms coccidies counts. Salmonella absent throughout trial period. Regardless hematological parameters not affected, exception white blood cell platelet concentration that male broilers. Serum content ASAT (Aspartate-transferase), ALAT (Alanine-transferase), creatinine, urea LDL-cholesterol 0.05), while HDL-cholesterol increased. Histology organs affected. Feeding broiler chickens through drinking can be used alternative improve performances.