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作 者:申丽[1,2] 耿爱莲[3] 马贺[1] 李保明[1] 陶士军[3] 施正香[1]
机构地区:[1]中国农业大学水利与土木工程学院,北京100083 [2]西安庆安畜牧设备有限公司,陕西西安710077 [3]北京市农林科学院畜牧兽医研究所,北京100097
出 处:《中国家禽》2012年第23期23-26,30,共5页China Poultry
基 金:"十二五"国家科技支撑计划项目(2012BAD39B02);北京市自然科学基金(6102010);现代农业产业技术体系建设专项资金(CARS-41)
摘 要:光照是影响蛋鸡生产性能和鸡蛋品质最重要的环境因素。本试验以蛋用型北京油鸡为研究对象,就两种连续光照和两种分段光照处理下油鸡在28、38和48周龄的生产性能和鸡蛋品质进行了研究。结果表明,不同光照处理下的蛋形指数、蛋壳比、蛋白高度、哈氏单位等指标没有显著差异,而产蛋率、平均蛋重、蛋壳厚度、蛋壳强度、蛋黄比率等指标存在显著差异(P<0.05);分段光照组8L:4D:4L:8D的平均产蛋率、平均蛋重、蛋黄比率等最大,比常规光照16L:8D分别高6.23%、1.63%、8.91%;相同光照时间,采用连续光照方式的鸡蛋品质较好;分段光照中短光照时间的鸡蛋品质优于长光照时间。Light is an important environmental factor to impact laying hens' production performance and egg quality. Egg-type Beijing You chickens were used in this experiment to analyze and compare 28, 38,48 weeks old egg-type Beijing You chickens' laying performance, eggs' external quality and internal quality among four different photoperiod programmes. The results showed that different photoperiods had no significant influence on egg shape index, eggshell rate, protein height and Hunt unit, but which had significant influence on laying rate, average egg weight, eggshell height, eggshell strength,egg yolk rate and so on (P〈0.05). With the segmental lights of 8L:4D:4L:SD,laying rate, average egg weight and egg yolk rate of chickens were the highest,which were separately 9.58%, 1.61%,8.19% more than conventional 16 h continuous lights. Continuous lights' egg qualities were better than other lights condition,which should have the same hours of sunlight. In the segmental photoperiod programmes,8 h of light's egg quality were better than 12h of light.
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