摘 要：
试验旨在研究冬季半开放式鸡舍舍内不同位点温湿度变化及对蛋鸡生产性能的影响。选用62周龄海兰灰商品蛋鸡2 520只,按照鸡舍纵向方向分为进风口、中间、出风口三个位点,每组设12个重复,每个重复70只鸡,按照鸡舍垂直方向分为上层、中层、下层三个位点,每组设12个重复,每个重复70只鸡。结果表明:冬季舍内的平均温度为11.6℃,中间位置平均温度最高为12.5℃,其次为进风口,平均温度为11.2℃,再次为出风口,平均温度为11℃;舍内平均湿度基本稳定在45%~50%,中间湿度>出风口湿度>进风口湿度,温湿度二者之间存在显著正相关(P<0.001)。平均耗料量、平均蛋重、产蛋率、料蛋比,进风口、中间、出风口组相比均无显著性差异(P>0.05)。上层平均温度比中层平均温度高1.9℃,中层比下层平均温度高2.6℃;中层比上层的平均湿度高0.6%,中层比下层的平均湿度高1.6%;下层的耗料量和平均蛋重显著高于上层和中层(P<0.05),产蛋率和料蛋比在上层、中层、下层间相比无显著差异(P>0.05)。综上所述,冬季半开放式鸡舍舍内温湿度变化在蛋鸡自身可调节范围内,基本能满足鸡群生产性能发挥。
译 名：
Effect of semi-open henhouse temperature and humidity on performance of laying hens in winter seasons
作 者：
CHEN Hui;DI Keqian;WU Pengwei;HUANG Renlu;College of Animal Science and Technology,Hebei Agricultural University;Hebei University;
关键词：
semi-open henhouse;;winter;;temperature and humidity;;production performance
摘 要：
The experiment was conducted to study the effect of temperature and humidity on the performance of laying hens in semi-open henhouse in winter seasons. Hyline gray commercial layers of 2 520 at 62- week- old according to the longitudinal direction of the henhouse were divided into air inlet,middle and outlet groups,each with 12 repetitions,70 chickens each repetition. According to the vertical direction of the henhouse,upper,middle and lower groups were divided with 12 replicates of 70 chickens. The results showed that the average temperature in winter was 11. 6 ℃,the middle group temperature was 12. 5 ℃,followed by the air inlet with average temperature of 11. 2 ℃ and outlet with an average temperature of 11 ℃. In addition,the humidity changed from 45% to 50%,the middle group > outlet group > air inlet group. Temperature and humidity showed a significant positive correlation( P < 0. 001). The average feed consumption,average egg weight,egg production,feed to egg ratio did not show any significant difference among air inlet,middle and outlet groups( P > 0. 05). The average temperature in the upper group was higher 1. 9 ℃ compared with middle group,the average temperature in the middle group was higher 2. 6 ℃ compared with lower group; the average humidity in the middle group was higher 0. 6% compared with upper group,the average humidity in the middle group was higher 1. 6% compared with lower group; feed consumption and average egg weight in lower group were significantly higher than the upper and middle group( P < 0. 05),egg production rate and feed to egg ratio did not show any significant differences among the upper,middle,lower groups( P > 0. 05). In summary,the changes of temperature and humidity in winter semi-open henhouse could be adjusted by the laying hens,therefore,the performance of laying hens were not affected significantly.
