Journals / Kafkas Üniversitesi Veteriner Fakültesi Dergisi / 2017 / Cilt: 23 - Sayı: 1

Effects of Photoperiod Length and Light Intensity on Performance, Carcass Characteristics and Heterophil to Lymphocyte Ratio in Broilers

Etlik piliçlerde Fotoperiyot Uzunluğu ve Işık Şiddetinin Performans, Karkas Özellikleri ve Heterofil/Lenfosit Oranı Üzerine Etkileri

Pages
39–45
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

In conclusion, it can be said that body weight, feed consumption, feed convertion ratio, whole breast meat and wing weights were increased by providing the increasing photoperiod used with a 20 lux light intensity in broiler breeding.

📌 3 Key Takeaways

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Objective & Hypothesis:The aim of this study was to investigate the effects of photoperiod length and light intensity on performance, carcass characteristics and heterophil to lymphocyte ratio in broilers.
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Key Findings & Data:A total of 272 1 day-old male broiler chicks (Ross 308) were randomly assigned to four treatment groups based on the photoperiod length (23L:1D or increasing duration of light) and light intensity (20 lux vs. a dim, reducing intensity) with four replicates.
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Conclusion & Impact:In conclusion, it can be said that body weight, feed consumption, feed convertion ratio, whole breast meat and wing weights were increased by providing the increasing photoperiod used with a 20 lux light intensity in broiler breeding.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

The aim of this study was to investigate the effects of photoperiod length and light intensity on performance, carcass characteristics and heterophil to lymphocyte ratio in broilers. A total of 272 1 day-old male broiler chicks (Ross 308) were randomly assigned to four treatment groups based on the photoperiod length (23L:1D or increasing duration of light) and light intensity (20 lux vs. a dim, reducing intensity) with four replicates. At 42 d of age, effects of photoperiod length and light intensity on performance traits were not significant. The heterophil/lymphocyte ratio in 20 lux and dim, reducing light intensity groups were 0.30 and 0.15 (P<0.001), respectively. On the other hand, the effect of light intensity has no influence on heterophil/lymphocyte ratio. Cold and hot carcass weights and whole breast meat and wing weights were found lower in the dim, reducing light intensity group than 20 lux light intensity group. The effects of photoperiod length and light intensity on carcass characteristics were not significant, statistically. In conclusion, it can be said that body weight, feed consumption, feed convertion ratio, whole breast meat and wing weights were increased by providing the increasing photoperiod used with a 20 lux light intensity in broiler breeding.

Özet

Bu çalışmanın amacı fotoperiyot uzunluğu ve ışık şiddetinin etlik piliçlerde performans, karkas özellikleri ve heterofil/lenfosit oranı üzerine etkilerinin araştırılmasıdır. Bir günlük yaşta toplam 272 adet (Ross 308) erkek civcivler fotoperiyot uzunluğu (23A:1K veya giderek artan aydınlık süre) ve ışık şiddeti (20 lüks veya giderek azalan ışık şiddeti) faktörlerine göre dört gruba, dört tekrarlı olacak şekilde rastgele olarak dağıtılmıştır. Kırkiki günlük yaşta, performans özellikleri üzerine, fotoperiyot uzunluğu ve ışık şiddetinin etkileri önemsiz bulunmuştur. Yirmi lüks ve giderek azalan ışık şiddeti gruplarında, heterofil/lenfosit oranı sırasıyla 0.30 ve 0.15 olarak bulunmuş olup, gruplar arası farklar istatistik bakımdan önemli (P<0.001) çıkmıştır. Diğer taraftan, ışık şiddetinin heterofil/lenfosit oranı üzerine önemli bir etkisinin olmadığı saptanmıştır. Sıcak ve soğuk karkas ağırlık ortalaması, bütün göğüs eti ve kanat ağırlık ortalaması değerleri giderek azalan ışık şiddeti grubunda, 20 lüks ışık şiddeti grubuna göre daha düşük olarak belirlenmiştir. Tüm karkas özellikleri üzerine fotoperiyot uzunluğu ve ışık şiddetinin etkisi istatistiksel olarak önemsiz çıkmıştır. Sonuç olarak, etlik piliç yetiştiriciliğinde, 20 lüks ışık şiddeti altında, giderek artan aydınlık süre kullanımının canlı ağırlık, yem tüketimi, yemden yararlanma oranı, bütün göğüs eti ve kanat ağırlıklarını olumlu yönde etkilediği söylenebilir.

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Cite This Article

FİDAN, E. D., NAZLIGÜL, A., TÜRKYILMAZ, M. K., KARAARSLAN, S., KAYA, M. (2017). Effects of Photoperiod Length and Light Intensity on Performance, Carcass Characteristics and Heterophil to Lymphocyte Ratio in Broilers. Kafkas Üniversitesi Veteriner Fakültesi Dergisi, Cilt: 23 - Sayı: 1, 39–45. https://ajindex.com/articles/272345

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References (1)

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