Netsov N, Stoev P, Stoianchev T
Vet Med Nauki. 1979;16(2):33-8.
Comparative zoohygiene studies were carried out on two types of industrial sow-raising technology that made use of common boxes and boxes the floor of which was lifted above the flooring on the premis in the winter season. It was found that raised boxes substantiated more favourable zoohygiene conditions for both sows and newborns. The latter were found to develop better, and the mortality rate was very low. The introduced ventilation system with the two types of technology, however, failed to guarantee the regular air exchange and the removal of injurious gases. Besides, when outside temperatures dropped below zero no optimal microclimate could be maintained within the houses for sows without using additional heating. Thirdly, with regard to their construction raised boxes were considered imperfect and did not meet the ergonomic and technologic requirements.
在冬季，对两种利用普通猪舍和地面高于猪舍地面的猪舍的工业母猪饲养技术进行了比较动物卫生学研究。结果发现，高架猪舍为母猪和新生仔猪提供了更有利的动物卫生条件。后者发育得更好，死亡率非常低。然而，采用这两种技术引入的通风系统未能保证定期的空气交换和有害气体的排出。此外，当外界温度降至零度以下时，如果不使用额外的供暖设备，母猪舍内就无法维持最佳的小气候。第三，就其结构而言，高架猪舍被认为不够完善，不符合人体工程学和技术要求。
