PURPOSE: To provide the subject apparatus capable of efficiently and surely controlling excrement attached to an excrement plate and eggs of insect pests such as fly blown on excrement bed, effectively utilizing a chemical without leaving the chemical in the interior of a tube for spraying and preventing clogging of a hole for spraying due to the chemical.
CONSTITUTION: Tubes 20... for spraying in which plural spraying holes are bored in the length direction is provided at the upper prescribed position than excrement plates 10... in a chicken house and a chemical feed means such as a tank or pump for feeding the chemical and air feed means for compressor for feeding compressed air are connected to these tubes 20... for spraying. The hole for spraying is formed so that the chemical can be sprayed to these excrement plate 10... and excrement bed 12 and an angle in spraying the chemical becomes ≥5° and ≤90° downward to the horizontal face.
TAKADA ISAO
MIMA TOSHIAKI
FUKUI KAZUO
CIBA GEIGY JAPAN LTD