Iraj Yousefian ASTANEH, Mohammad CHAMANI, Seyed Naser MOUSAVI, Ali Asghar SADEGHI, Mehdi Amin 1 AFSHAR

Effects of Stocking Density on Performance and Immunity in Ross 308 Broiler Chickens

To investigate the effect of stocking density on productive traits, blood parameters and immunity, 1305 Ross 308 male broiler chicks (initial weight: 45±1.5 g) were used as a completely randomized design with 2 treatments and 15 replications. Treatments included 1) 12 chicks per pen 2) 18 chicks per pen (1.2x1.2 m2 ). The results were recorded in three periods of 0-24, 25-42 and 0-42 d. From 0 to 24 d of age, the stocking density had no significant effect on feed intake and body weight gain (P>0.05), but feed conversion ratio significantly decreased in 12 chicks density group (P

Ross 308 Broiler Tavuklarda Yerleşim Sıklığının Performans ve Bağışıklığa Etkileri

Yerleşim sıklığının üretim özellikleri, kan parametreleri ve bağışıklığa etkilerini incelemek amacıyla, 1305 adet Ross 308 erkek broiler civciv (ön ağırlık: 45±1.5 g) rastgele dizaynda, 2 uygulama ve 15 tekrar olmak üzere kullanıldı. Uygulamalar 1: her 2 kafes için 12 civciv ve 2: her kafes (1.2x1.2 m2 ) için 18 civciv olarak gerçekleştirildi. Sonuçlar 0-24, 25-42 ve 0-42 gün olmak üzere üç periyotta incelendi. 0-24 günlük periyotta yerleşim sıklığı yem tüketiminde ve vücut ağırlık kazanımında anlamlı bir etkiye neden olmazken (P>0.05) yem konversiyon oranı 12 civciv sıklık grubunda anlamlı derecede düştü (P

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