Effects of different intermittent illumination patterns on production performance of slow growing type Yellow chickens
文献类型： 外文期刊
作者： Wang, Q. B. 1 ; Li, C. M. 1 ; Jiang, R. S. 2 ; Li, S. F. 1 ; Huang, H. Y. 1 ; Huang, Z. Y. 1 ; Wang, Z. C. 2 ; Zhao, Z. H. 1 ;
作者机构： 1.Chinese Acad Agr Sci, Poultry Inst, Yangzhou 225125, Jiangsu, Peoples R China
2.Anhui Agr Univ, Sch Anim Sci & Technol, Hefei 230000, Peoples R China
关键词： slow growing chickens; intermitted illumination; noon time; production performance; meat quality
期刊名称：EUROPEAN POULTRY SCIENCE （ 影响因子：0.552； 五年影响因子：1.146 ）
ISSN： 1612-9199
年卷期： 2022 年 86 卷
页码：
收录情况： SCI
摘要： The objective of this study was to investigate the effects of intermittent illumination around noontime on the F line of slow growing line of Yellow chickens. The chickens were randomly divided into three groups of 70 roosters and 100 hens kept under three different illumination patterns. Group I was the control group (16 h of illumination at 10 lux). After day 21, in group II the light was additionally turned off during noon from 12:00-13:00 and in group III from 12:00-14:00 based on the lighting schedule of group I. The results showed that there was no significant difference in body weight (BW) between the three groups during the first 21 days (p 0.05), but there were no significant differences between group I and III (p 0.05) compared with the other groups. On day 84, there were no significant differences in blood indices (IGF-1, growth hormone, testosterone) or meat quality indices (flesh colour, shear force, PH, and water-holding capacity) between the three groups (p 0.05), but some indicators in group II showed an increasing trend. Based on these results, the intermittent light pattern of group II not only saved electrical energy and diet resources but also improved some indices of production performance.
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