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郑红亚,杨柳,李保明,周宝贵.育成笼增设栖杆对转群前后鸡群适应性的影响[J].农业工程学报,2018,34(13):225-232.DOI:10.11975/j.issn.1002-6819.2018.13.027
育成笼增设栖杆对转群前后鸡群适应性的影响
投稿时间:2017-12-27  修订日期:2018-05-06
中文关键词:  动物  行为研究  转群  育成期  栖架系统  适应性
基金项目:国家现代农业(蛋鸡)产业技术体系项目(CARS-40-K19);北京市创新基地培育与发展专项资助(Z171100002217018)
作者单位
郑红亚 1. 中国农业大学水利与土木工程学院农业部设施农业工程重点实验室北京市畜禽健康养殖环境工程技术研究中心北京 100083
 
杨柳 1. 中国农业大学水利与土木工程学院农业部设施农业工程重点实验室北京市畜禽健康养殖环境工程技术研究中心北京 100083
 
李保明 1. 中国农业大学水利与土木工程学院农业部设施农业工程重点实验室北京市畜禽健康养殖环境工程技术研究中心北京 100083
 
周宝贵 2. 北京市华都峪口禽业有限责任公司北京 101206
 
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中文摘要:受育雏育成方式影响,传统笼养鸡群对立体系统适应性较差,导致严重的行为问题。该文以传统笼养育成鸡群为试验对象,探究育成期增加栖杆对鸡群转群至栖架系统前后的行为影响,改善传统笼养鸡群转至栖架系统的适应性。试验考虑加杆时间(63日龄和73日龄)和加杆位置(笼宽和笼深)2个因素。结果表明:1)加杆处理影响笼养阶段鸡群白天的行为和夜间上架情况。白天鸡群栖息行为占12.8%~21.6%,加杆10 d后的夜间栖杆使用率为75%~88%。2)加杆处理加快鸡群转群后对立体空间的适应,转群初期2个日龄处理组鸡群在爬梯栖架单元的上层平台分布比例分别为74.2%和65.6%,高于对照组的59.2%。研究结果表明,在育成笼增设栖杆可加快鸡群对立体系统的适应,且加杆时间越早,鸡群适应优势越明显。
Zheng Hongya,Yang Liu,Li Baoming,Zhou Baogui.Effect of perch provision in rearing cages on pullets’ adaptability to perch system before and after transfer[J].Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE),2018,34(13):225-232.DOI:10.11975/j.issn.1002-6819.2018.13.027
Effect of perch provision in rearing cages on pullets’ adaptability to perch system before and after transfer
Author NameAffiliation
Zheng Hongya 1. College of Water Resources & Civil Engineering, China Agricultural University
 
Yang Liu 1. College of Water Resources & Civil Engineering, China Agricultural University
 
Li Baoming 1. College of Water Resources & Civil Engineering, China Agricultural University
 
Zhou Baogui Key Laboratory of the Ministry of Agriculture for Agricultural Engineering in Structure and Environment
 
Key words:animals  behavior research  transfer  rearing period  perch system  adaptation
Abstract:As people pay more attention on animal welfare, the alternative systems, like perch systems, usually with multi tiers, are increasingly used for poultry production. Pullets need good spatial capabilities to utilize resources distributed on different tiers and display certain behaviour in such systems. However, the majority of pullets in China are housed in conventional cage systems which are considered adverse for the development of spatial skill since the performance of behaviour like perching, jumping and flying are restricted. A lack of such exercises weakens pullets’ ability to negotiate the level changes and results in poor adaptability in multi-tier systems, which contributes to problems of behaviour, such as disproportionate distribution in different space, high ratio of floor laying and injures. 240 Jingfen No.2 parent layer breeders were used in present study to investigate the effect of perch provision during rearing period on pullets’ adaptability before and after transfer into the multi-tier perch system, aimed at improving pullets’ adaptability in such cage-free system from traditional rearing cage system. Each rearing cage accommodates 8 pullets, providing each pullet with 487.5 cm2 cage floor area. 2 factors including manipulation time (age of 63 days and 73 days) and positions of perch addition (along the width of the cage and along the depth of the cage) were taken into account. Each treatment was replicated in 6 cages and the rest 6 cages were used as control groups. Altogether 30 cages were used. All pullets were transferred into the perch system on the ages of 83 days and pullets from 5 different cages were put together and put on the system floor. The number of roosting pullets after light off and individual behaviours during the daytime were observed in cages. Distributions of pullets and individual behaviours during the daytime in perch unit were compared. The results showed that: 1. the addition of perches in rearing cages significantly affected on the number of roosting pullets at the first night (Ptime*position<0.01). Utilization of width perches on the age of 63 days was significantly higher than that on the age of 73 days (P<0.01) and higher than that of depth perches (P<0.01). Averaged 4.5-5.3 pullets roosted on the perches on the 10th night with the ratio of perch use ranging from 75% to 88%, and no significant difference was found among treatments. 2. The accumulative frequency of standing, lying and preening on the cage floor decreased in perch cages, along with increased feeding and locomotion and decreased pecking behaviours of the whole group. The proportion of perching behaviour during the daytime was 12.8%-21.6%, and more pullets preferred to stay on perch, with heads toward to the wire mesh of the cage. 3. In the ramp perch units, the proportions of pullets from perch groups were 74.2% and 65.6% respectively on elevated platforms in the perch system for the 2 ages during the initial 5 days after transfer, and it is 59.2% for the control group, which is significant difference compared with perch group of 63 days age (P<0.05). However, perch utilization was rare in 2 modified perch units. Overall, the results indicated that the provision of perches in rearing cages is advantageous for pullets’ adaptability to the stereo space in the perch system after transfer, and earlier experience of perch during rearing period is better. It is suggested that perches should be provided in pullet rearing cages as early as possible in order to improve the adaptability of pullets after being transfered to perch system.
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