Does the distribution of light intensity within the barn impact broiler production and welfare?

IF 1.6 3区农林科学 Q2 AGRICULTURE, DAIRY & ANIMAL SCIENCE

British Poultry Science Pub Date : 2024-10-28 DOI:10.1080/00071668.2024.2414460

T Shynkaruk, M Parsons, C A B Adler, C Goeree, K Long, K Schwean-Lardner

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引用次数: 0

Abstract

1. The objective of this study was to determine if rearing broilers under variable light intensity (VLI) impacted their welfare or productivity.2. Ross 308 broilers (n = 7,256) were reared until 35 d of age and exposed to a uniform intensity of 10 lux (CON) or VLI with low intensity areas of 2-5 lux proximal to the walls and high intensity areas of 84-133 lux proximal to feeders.3. The data were analysed as a complete randomised design using an analysis of variance. Significance was declared when p ≤ 0.05.4. Applying VLI resulted in increased feed intake early in life but had no impact on body weight. Overall efficiency was improved in the CON treatment. Mortality diagnoses of skeletal problems were reduced under VLI. Treatment had no impact on footpad, hock or gait score, heterophil to lymphocyte ratio or melatonin concentration. Birds performed certain behaviours in specific locations within the room, independent of light intensity treatment.5. In conclusion, raising broilers under VLI had little impact on production or most welfare parameters assessed in this study. However, satisfying the bird's preference for different light intensities may improve welfare.

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鸡舍内的光照强度分布会影响肉鸡的生产和福利吗？

1.本研究的目的是确定在可变光照强度（VLI）下饲养肉鸡是否会影响其福利或生产率。2. 将罗斯 308 肉鸡（n = 7,256 只）饲养至 35 日龄，并将其置于均匀强度为 10 勒克斯（CON）或 VLI（靠近墙壁的低强度区域为 2-5 勒克斯，靠近饲喂器的高强度区域为 84-133 勒克斯）的环境中。 3. 使用方差分析对数据进行完全随机设计分析。当 p ≤ 0.05 时，结果具有显著性。应用 VLI 可提高早期采食量，但对体重没有影响。CON处理的总体效率有所提高。VLI降低了因骨骼问题导致的死亡率。治疗对脚垫、跗关节或步态评分、嗜异性细胞与淋巴细胞比率或褪黑激素浓度没有影响。鸟类在室内特定位置做出某些行为，与光照强度处理无关。总之，在 VLI 下饲养肉鸡对生产或本研究评估的大多数福利参数影响甚微。不过，满足鸟类对不同光照强度的偏好可能会提高福利。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

British Poultry Science 农林科学-奶制品与动物科学

CiteScore

3.90

自引率

5.00%

发文量

审稿时长

4.5 months

期刊介绍： From its first volume in 1960, British Poultry Science has been a leading international journal for poultry scientists and advisers to the poultry industry throughout the world. Over 60% of the independently refereed papers published originate outside the UK. Most typically they report the results of biological studies with an experimental approach which either make an original contribution to fundamental science or are of obvious application to the industry. Subjects which are covered include: anatomy, embryology, biochemistry, biophysics, physiology, reproduction and genetics, behaviour, microbiology, endocrinology, nutrition, environmental science, food science, feeding stuffs and feeding, management and housing welfare, breeding, hatching, poultry meat and egg yields and quality.Papers that adopt a modelling approach or describe the scientific background to new equipment or apparatus directly relevant to the industry are also published. The journal also features rapid publication of Short Communications. Summaries of papers presented at the Spring Meeting of the UK Branch of the WPSA are published in British Poultry Abstracts .