Effect of Some Acidifiers on Gastrointestinal Tract Characteristics and Performance of Broiler Chickens

Iranian Journal of Applied Animal Science

مقاله 20، دوره 4، شماره 1، خرداد 2014، صفحه 143-149   

نوع مقاله: Research/Original Article

نویسندگان

S. Yakhkeshi¹؛ P. Shawrang^{* 2}؛ S. Rahimi¹

¹Department of Poultry Science, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran

²Nuclear Agriculture Research School, Nuclear Science and Technology Research Institute, Karaj, Iran

چکیده

The effects of Selko-pH (S; 1 mL/L drinking water); Termin-8 (T; 2 kg/ton feed) and Neogermicin (N; 2 L/ton feed) on gastrointestinal tract (GIT) pH, microbial population, ileal digestibility and broiler performance were investigated. The lowest feed intake (FI) was attained by chickens fed diets supplemented with S group in all periods (P<0.05). The highest weight gain (WG) was achieved by birds fed diet containing N set at 22-42 and 1-42 periods (P<0.05). The highest and lowest feed conversion ratio (FCR) were obtained by control (C) and N groups at 22-42 and 1-42 days of age, respectively (P<0.05). Inclusion of acidifiers increased lactic acid bacteria and reduced total coliforms at different ages. The C and N treatments induced the lowest and greatest dry matter and gross energy digestibility coefficients, respectively (P<0.05). Moreover, pH of different parts of GIT were significantly diminished by acidifiers’ treatments compared to C group (P<0.05). The results of current study have shown that acidifiers improved the gut microflora conditions by pH reduction. The digestibility of nutrients and energy utilization were superior by incorporated acidifiers, but S groups played a minor role in this regard.

کلیدواژه‌ها

acidifiers؛ broiler performance؛ digestibility؛ microflora

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