筛选
科学数据
统计数据
共检索到5条 ,权限内显示50条;
Data from: Space use by 4 strains of laying hens to perch, wing flap, dust bathe, stand and lie down
- 负责人：
- DOI：
- doi:10.5061/dryad.2631p
- 摘要：
- The laying hen industry is implementing aviary systems intended to improve welfare by providing hens with more space and resources to perform species
Data from: Factors Influencing Productivity of Eastern Wild Turkeys in Northeastern South Dakota
- 负责人：
- DOI：
- doi:10.5061/dryad.5dv41ns3d
- 摘要：
- ater probability of survival than poults reared by yearling hens. Our estimate of survival probability of poults raised by yearling hens was low relative to other
Data from: Genetic loci inherited from hens lacking maternal behaviour both inhibit and paradoxically promote this behaviour
- 负责人：
- DOI：
- doi:10.5061/dryad.2vd1c
- 摘要：
- e associated with increased egg production. Increased egg production increases the probability of incubation behaviour occurring because egg laying must precede
Data from: Implications for welfare, productivity and sustainability of the variation in reported levels of mortality for laying hen flocks kept
- 负责人：
- 关键词：
- mortality laying hens animal welfare animal productivity sustainability food security housing systems
- DOI：
- doi:10.5061/dryad.60q44
- 摘要：
- Data from ten sources comprising 3,851 flocks were modelled to identify variation in levels of mortality in laying hens. The predicted increase
Estimates of manure volumes by livestock type and land use for England and Wales
- 负责人：
- Gooday, Richard;;Environmental Information Data Centre
- DOI：
- doi:10.5285/517717f7-d044-42cf-a332-a257e0e80b5c
- 摘要：
- [1]. The farm livestock classes are: dairy cattle; beef cattle; pigs; sheep and other livestock; laying hens; broilers and other poultry. The quantities produced
首页上一页1下一页尾页
