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作 者:申丽[1,2] 马贺[1,2] 耿爱莲[3] 张尧[3] 施正香[1,2]
机构地区:[1]中国农业大学水利与土木工程学院,北京100083 [2]农业部设施农业工程重点开放实验室,北京100083 [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》2011年第14期10-14,19,共6页China Poultry
基 金:蛋鸡产业技术体系(CARS-41);北京市自然科学基金(6102010);公益性行业(农业)科研专项经费资助项目(200903009)
摘 要:本试验对分段光照和连续光照条件下蛋用型北京油鸡的生产性能、采食时长、产蛋时间进行了研究。结果表明分段光照对蛋鸡的开产日龄没有明显影响,对产蛋前期产蛋率、耗料量的影响差异显著(P<0.05),对平均蛋重的影响差异显著(P<0.05),对料蛋比的影响差异极显著(P<0.01);对产蛋中期产蛋率、蛋重、耗料量、料蛋比影响均差异极显著(P<0.01);不同光照制度下蛋鸡的采食高峰时间和采食时长不同,产蛋高峰均集中在上午时段。分段光照和开灯时间早的试验组,蛋用型北京油鸡产蛋中前期的生产性能较好。This experiment was conducted to compare production performance,frequency of feeding and laying time of egg-type Beijing You chicken during segmental photoperiod and continuous photoperiod.The results showed that photoperiods had no significant effect on age of the first egg.At previous laying stage,the effect on laying-rate,average daily feed intake and average egg weight was significant(P 0.05).The effect on feed conversion rate was extremely significant(P0.01).At middle laying stage,the effect on laying rate,average daily feed intake,average egg weight,feed conversion rate was extremely significant(P0.01).Laying hens which received different photoperiod regime had different peak of feeding as well as frequency of feeding.However,the laying hens mentioned above all got its laying peak in the morning.Egg-type Beijing You chicken which received segmental photoperiod and earlier lighting had better production performance at previous and middle laying stage.
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