Department of Animal and Food Sciences, University of Delaware, Newark, DE, USA.
Department of Animal Science, Hunan University, Changsha, Hunan, China.
Poult Sci. 2017 May 1;96(5):1108-1119. doi: 10.3382/ps/pew440.
Research comparing conventional litter and alternative perforated flooring (netting) systems is relatively limited under commercial production conditions. A comprehensive comparison of broiler production performances, welfare quality, and housing environment of two broiler houses with conventional litter and new perforated plastic floors was conducted over four flocks for eight months in eastern China. The two broiler houses each had 31,700 broilers per flock on average and were ventilated using a negative-pressure system. Prior to the onset of the monitoring, litter/manure in all houses was removed. The environmental conditions, gaseous concentrations, and ventilation rate were recorded continuously. Production performance and welfare quality data were collected weekly. Results showed that indoor temperature and relative humidity were not affected by the different floors when the two houses had the same ventilation configuration and management. The average ammonia concentration was lower at 10.44 ppm in the litter house compared to 15.02 ppm in the netting flooring house due to the manure accumulation under the floor. Broiler production performance including live weight, feed conversion, and mortality, was not affected by the netting floor compared to the litter system. In addition, the results suggested that birds raised in the netting floor house may increase breast blister incidence. In this study, the welfare quality parameters including hock and foot pad lesions, lameness, and fearfulness levels were similar in both for both flooring systems.
在商业生产条件下，对传统垫料和替代穿孔地板（网）系统的研究相对有限。本研究在中国东部进行了为期 8 个月、4 个批次的试验，比较了 2 个具有传统垫料和新型穿孔塑料地板的肉鸡舍的肉鸡生产性能、福利质量和饲养环境。每个肉鸡舍平均每批有 31700 只肉鸡，采用负压通风系统进行通风。在监测开始之前，所有鸡舍的垫料/粪便都被清除。连续记录环境条件、气体浓度和通风率。每周收集生产性能和福利质量数据。结果表明，当两个鸡舍具有相同的通风配置和管理时，不同的地板不会影响室内温度和相对湿度。由于地板下的粪便堆积，垫料鸡舍的平均氨浓度为 10.44 ppm，而网地板鸡舍为 15.02 ppm。与垫料系统相比，网地板对肉鸡生产性能（包括活重、饲料转化率和死亡率）没有影响。此外，结果表明，网地板鸡舍饲养的鸡可能会增加胸部水泡的发病率。在这项研究中，两种地板系统的福利质量参数（跗关节和脚垫损伤、跛行和恐惧水平）相似。
