DISEASES OF SHEEP 179 



worms, using Conkey's Special Dog Worm Remedy. A practical plan is to 

 butcher the sheep for market before they lose condition, since the mere 

 presence of the gid-worms at that stage does not affect the marketableness 

 of the flesh. In this case, however, take special care to destroy the brain 

 and spinal cord of the butchered animals; for if the dogs eat these infected 

 parts the tape-worms will develop again and the whole trouble will go on 

 in an endless chain. 



GRASS This disease should be carefully distinguished from Gid, just 



STAGGERS described. In grass staggers the animal has a staggering gait, 

 and the actions are restless and delirious. Sometimes there is 

 drowsiness. The disease develops slowly, the first symptom being loss of 

 condition, no appetite, fever and constipation; the eyes staring, the nose dry 

 and hot. The cause is wrong feeding, due to one of the following: (1) 

 innutritious feed, mostly roughage; (2) sudden change in feeding; (3) food 

 too rich, especially too much concentrate or grain; for instance, feeding 

 millet hay when heavily seeded may cause this sickness. 



Treatment Purge the animal, then mix with the feed Conkey's Stock 

 Tonic as directed. This will bring back the appetite, act as a 

 tonic, and also correct the trouble with digestion. A little oil meal added 

 to the feed will greatly benefit the sheep. 



The following is a good formula for treating Grass Staggers, but is more 

 trouble to give, and also more expensive: 



One-half pint linseed tea to each animal with 2 teaspoon- 

 fuls of this mixture: \ l /2 oz. aromatic spirits of ammonia, l /2 

 dram fluid extract of nux vomica, 2 l / 2 oz. alcohol. 



This should be given twice a day until appetite returns. Then feed 

 carefully, giving a little oil meal. 



GRUB IN During July and August the gad- 

 THE HEAD fly is abroad in the land, seeking 

 its chance to deposit its egg in the 

 nostril of the sheep. The sheep fear this pest, and 

 during the egg laying season will huddle to- 

 gether, their noses pressed into each other's fleece 

 or buried in the ground or between their fore- 

 legs. When a sheep is "struck" or stung by a 

 gad-fly it leaps frantically, shakes its head and 

 seems to be trying to rub the egg from the nos- Diagram showing location of 

 tril. The sting subsides and the sheep shows no grub in the head and where to 

 further symptoms until the following spring, by Jhem ine the SkuU t> remove 

 which time the larvae are developed and begin to 

 burrow, working their way up into the nose 



cavities, and hollow folds and sometimes reaching even the brain. The 

 symptom at this stage is a bloody discharge from the nose and sneezing. 

 Often sneezing will dislodge the grub and there will be no further trouble, 

 unless the sheep has been "struck" several times in one fly season. If the 

 grub succeeds in making its way to the brain instant death results. 



Treatment If the animal is valuable the grub can be removed by the 

 operation of trepanning the skull, and the larvae cleaned out. 

 See diagram cut. But the only cheap and practical treatment is preventive 

 as follows: During fly season smear the nose of each sheep every few 

 days with a mixture of tar and Conkey's Fly Knocker. The Fly Knocker 



