44^ MANUAL OF MODERN FARRIERY 



are the favourite breeding-grounds of these parasites, 

 and first and second growths of clover, especially where 

 water occasionally rests in pools. Lambs folloiving 

 sheep pasturing, if the ewes do host to the parasite, 

 rapidly become affected. The embryos are swallowed 

 in grass, or drank in water, or entering the bodies of 

 snails, in the water or food, thus gain the stomach 

 of the calf or lamb. On being hatched, it bores its 

 way into the blood or lymph vessels and finally it 

 reaches the lungs. 



Symptoms. — Husky cough, with not much nasal 

 discharge, rubbing the nose on the ground, or against 

 a hurdle ; mouth open ; tongue out ; hurried and 

 difficult breathing ; rapid loss of flesh and strength. 

 If the parasites infest the bowels there is profuse 

 diarrhoea. 



Remedies. — While the embryo worms are in the 

 bowels, and the cough but slight, oil of turpentine and 

 milk will kill them. The dose of turpentine is two 

 drachms morning and evening in milk or linseed oil 

 gruel. If the lungs are infested to any extent, 

 chlorine evolved from bleaching powder (chloride of 

 lime), or from common salt, black oxide of manganese, 

 and sulphuric acid, or sulphuric acid gas, obtained by 

 burning stick sulphur on a few live coals. Injections 

 of oil of turpentine, carbolic acid, and opium into the 

 windpipe is also a certain remedy, but it is a method of 

 treatment which requires veterinary skill and super- 

 vision. When possible, change the pasture, and keep 

 up the strength of the herd or flock by liberal use of 

 hand-feeding. 



STOMACH, OR GRASS STAGGERS. 



Symptoms. — This disease is indicated by a stagger- 

 ing, unequal walk, as if the animal were intoxicated, 



