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核心技术专利：CN118964589B侵权必究

核心技术专利：CN118964589B侵权必究

Agricultural Economics Research Institute (LEI-DLO), Centre of Applied Poultry Research, Beekbergen, The Netherlands.

Br Poult Sci. 1996 May;37(2):255-61. doi: 10.1080/00071669608417857.

In the Netherlands aviary systems are in use on 19 commercial farms. In the present study the results of 19 flocks kept in aviaries, with an average flocksize of 16,000 hens, were analysed and compared with 47 flocks kept in battery cages. 2. The aviary flocks had lower egg weights, lower mortality rates and poorer food conversion. The difference in food intake per hen per day was not significant. The average percentage of floor eggs in aviaries was 4.6, ranging from 0.9 to 11.5. 3. Production costs per kg eggs produced in aviaries were 8.2% greater than in cages. This increase was mainly caused by higher costs for pullets, housing and labour.

在荷兰，19个商业农场采用了禽舍养殖系统。在本研究中，对饲养在禽舍中的19个鸡群的结果进行了分析，这些鸡群平均规模为16000只母鸡，并与饲养在层架式鸡笼中的47个鸡群进行了比较。2. 禽舍养殖的鸡群蛋重较低、死亡率较低且饲料转化率较差。每只母鸡每天的采食量差异不显著。禽舍中地面蛋的平均比例为4.6%，范围从0.9%到11.5%。3. 禽舍养殖生产每千克鸡蛋的成本比笼养高8.2%。这种增加主要是由于雏鸡、鸡舍和劳动力成本较高所致。

Agricultural Economics Research Institute (LEI-DLO), Centre of Applied Poultry Research, Beekbergen, The Netherlands.

Br Poult Sci. 1996 May;37(2):255-61. doi: 10.1080/00071669608417857.

In the Netherlands aviary systems are in use on 19 commercial farms. In the present study the results of 19 flocks kept in aviaries, with an average flocksize of 16,000 hens, were analysed and compared with 47 flocks kept in battery cages. 2. The aviary flocks had lower egg weights, lower mortality rates and poorer food conversion. The difference in food intake per hen per day was not significant. The average percentage of floor eggs in aviaries was 4.6, ranging from 0.9 to 11.5. 3. Production costs per kg eggs produced in aviaries were 8.2% greater than in cages. This increase was mainly caused by higher costs for pullets, housing and labour.

在荷兰，19个商业农场采用了禽舍养殖系统。在本研究中，对饲养在禽舍中的19个鸡群的结果进行了分析，这些鸡群平均规模为16000只母鸡，并与饲养在层架式鸡笼中的47个鸡群进行了比较。2. 禽舍养殖的鸡群蛋重较低、死亡率较低且饲料转化率较差。每只母鸡每天的采食量差异不显著。禽舍中地面蛋的平均比例为4.6%，范围从0.9%到11.5%。3. 禽舍养殖生产每千克鸡蛋的成本比笼养高8.2%。这种增加主要是由于雏鸡、鸡舍和劳动力成本较高所致。