Lahrmann K H
Klinik für Klauentierkrankheiten und Fortpflanzungskunde, Freien Universität Berlin.
Tierarztl Prax Suppl. 1988;3:62-5.
The influence of light intensity in service areas on fertility of breeding sows under daylight as well as artificial light conditions has been confirmed. Under conditions of confinement, which are necessary for epidemic reasons too, the improvement of lighting is possible in two ways: 1. By increasing daylight coefficients to at least 1.0% (300 Lx at overcast sky) using natural light more efficiently (window: floor ratio greater than 1:20 and/or south direction of windows, S-S-E, resulting in higher light intensities) during sunshine. These measures require some investment, but do not add to running expenses. 2. By additional artificial lighting with current-saving light bulbs (fluorescent lightings) and their fitting next to animals, which should result in at least 300 Lx. The additional expenses seem to be acceptable versus improvement of sows fertility and better working conditions for staff.
已证实服务区域的光照强度在自然光照和人工光照条件下对繁殖母猪繁殖力的影响。出于防疫需要，圈养条件是必要的，改善照明可通过两种方式实现：1. 在阳光充足时，更高效地利用自然光，将采光系数提高到至少1.0%（阴天时为300勒克斯）（窗户与地面面积比大于1:20和/或窗户朝南、东南偏南方向，可获得更高光照强度）。这些措施需要一些投资，但不会增加运营成本。2. 通过使用节能灯泡（荧光灯）进行额外人工照明，并将其安装在靠近动物的位置，光照强度应至少达到300勒克斯。与提高母猪繁殖力和改善工作人员工作条件相比，额外费用似乎是可以接受的。
