DOMESTIC ANIMALS. 



179 



Fig. 74. Sheep louse. 



Fig. 75. Goat louse. 



Fig. 76. Pig louse. 



Fig. 77. Dog louse. 



Fig. 78. Fowl louse. 



They are propagated by eggs. These are known as 

 nits, and in many species of animal are found attached 

 to the hair by a gluey substance. 



Symptoms. All animals reveal the presence of these 

 parasites by rubbing and scratching. If long contin- 

 ued, the skin will be bare in spots, and a little later 

 sores will be produced. Such animals are usually in a 

 bad condition, unable to stand a hard days work. 

 Long hair, lack of cleanliness, and general debility all 

 conduce to the multiplication of lice. 



Treatment, Cleanliness is a paramount necessity. 



