Kesikli aydınlatma programlarının etlik piliçlerinde büyüme performansı üzerine etkisi

Bu çalışmada kesikli aydınlatma programının (3 saat karanlık: l saat aydınlık/ 24 saat) erkek ve dişi etlik piliçlerin büyüme performansı üzerine etkisi araştırılmıştır. Araştırmada 300 adet (l 50 adet erkek ve 150 adet dişi) bir günlük Ross PM3 civciv kullanılmıştır. Erkek ve dişilerin yarısına günde 23 saat aydınlık l saat karanlık (kontrol grubu), diğer yarısına ise 3 saat karanlık l saat aydınlık (kesikli aydınlatma grubu) periyodik olarak uygulanmıştır. Deneme üç tekerrUrlü olarak yürütülmüş ve 42 gün sürmüştür, kesikli aydınlatma programı yapılan grubun canlı ağırlık, canlı ağırlık artışı, yem tüketimi, yemden yararlanma derecesi, yenilebilir iç organ ağırlığı ve karkas randımanı kontrol grubuna göre istatistik! olarak farklı bulunmamıştır, Erkeklerin dişilere göre daha fazla yem tükettiği, canlı ağırlık artışı ve yemden yararlanma derecelerinin daha iyi olduğu tespit edilmiştir. Erkeklerin karkas ağırlığı ve yenilebilir iç organların ağırlığı dişilere göre önemli derecede (p

The effect of intermittent lighting schedule on growth perfomance of boilers

This trial was conducted to determine the effect of intermittent lighting schedule (3 h light: l h dark) on performance of male and female broilers. 300 day-old Ross PM3 broiler chickens (150 male and 150 female) were used in this study. Half of the male and female chickens were raised under 23 hour light: 1 hour dark (control group), whereas the other chickens remained 3 hour dark: 1 hour light (intermittent lighting group). The investigation contiuned three replicates and lasted at 42 days. There were no significant differences between intermittent lighting group and control group with respect to body weight, weight gain, feed consumption, feed conversion, edible internal organs (heart and liver), and carcass yield. Feed consumption, weight gain and feed conversion rate of males were higher than females. The carcass weight and edible internal organs weight of male chickens were significantly (p < 0.01) higher man female chickens. At the end of the experiment, it was determined that sex and intermittent lighting schedule did not effect on mortality rate.

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