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Asian-Australas J Anim Sci > Volume 20(4); 2007 > Article
Swine Nutrition and Feed Technology
Asian-Australasian Journal of Animal Sciences 2007;20(4): 550-555.
DOI: https://doi.org/10.5713/ajas.2007.550    Published online January 24, 2007.
Influence of Intermittent Lighting on Broiler Performance, Incidence of Tibial Dyschondroplasia, Tonic Immobility, Some Blood Parameters and Antibody Production
E. E. Onba힊캇lar*, H. Erol, Z. Cantekin, 횥. Kaya
Correspondence:  E. E. Onba힊캇lar,
Abstract
The aim of this study was to determine the effect of two lighting programs (continuous lighting (CL) 24L:0D and intermittent lighting (IL) 1L:3D) on the broiler performance, carcass traits, incidence of tibial dyschondroplasia (TD), relative asymmetry (RA), duration of induced tonic immobility (TI), heterophils-lymphocytes ratio (H/L), serum glucose, cholesterol and triglyceride levels. The chicks were randomly divided into 2 treatment groups consisting of 100 chicks per treatment, continuous lighting (CL) 24L:0D or intermittent lighting (IL) 1L:3D. Each treatment consists of 5 replicates of 20 chicks. The experimental period was 6 weeks. Use of IL decreased feed to gain ratio, improved immune response and reduced fearful. Body weight, carcass traits, TD and stress parameters (organ weights, RA, H/L, glucose, cholesterol and triglyceride levels) were not significant in different lighting groups. As a result IL was beneficial for producers and chickens than CL.
Keywords: Lighting; Broiler; Performance; Tibial Dyschondroplasia; Tonic Immobility; Relative Asymmetry; Blood Parameters
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