360 Veterinary Medicine. 



Salt the drinking water. When the drinking water is in- 

 fested it should be fenced in and water supplied daily in troughs, 

 with I part of salt added to every 200 parts of water. ( i ^ ozs. 

 to 2 gallons). 



Quick lime has been found to destroy the distomata and their 

 molluscous hosts. This has accordingly been used as a top dress- 

 ing on the pastures to the extent of 400 lbs. to the acre. It is, 

 however, very soon transformed into calcium carbonate in which 

 condition it is no longer effective. 



I/ime has also been advised to mix with the manure, but it 

 hastens decomposition and greatly impairs its manurial value. 



Overstocking of infested pastures is to be avoided, as the 

 more closely it is grazed the greater the probability of taking in 

 the encysted cercaria on the lower parts of the stems and leaves. 

 There is also the danger of tearing up the plants by the roots, and 

 on the part of the sheep a greater susceptibility from the 

 poverty of the feeding. 



If infested sheep are fit for mutton they should be killed, as 

 otherwise they continue the distribution of the ova for months. 

 Sheep that have died or been killed with distomatosis, should be 

 heavily salted and deeply buried in dry soil or boiled to ensure 

 the destruction of the ova. Above all the liver and offal should 

 not be given raw to dogs, cats or other animals which would 

 carry and distribute such ova in their fseces. 



The most important of all precautions is to avoid turning in- 

 fested sheep on fresh, non-infested pastures. In purchasing sheep 

 therefore flocks that have been on low, damp infested lands must 

 be refused, and in public markets, all such sheep as show the 

 characteristic anaemia and asthenia, and particularly those with 

 slight icterus and a pallid, cloudy, thickened, puffy or dropsical 

 condition of the conjunctiva. By everting the upper lid over the 

 finger and closely scrutinizing it this condition can usually be 

 made out. 



In a country in which liver distomatosis is known to exist, it 

 is well to place all new purchases of sheep or cattle on a dry 

 sandy soil until time has been allowed for the exit of the ova of 

 any flukes which they may harbor. The longest limit of the life 

 of the mature fluke in the liver should dictate the duration of 

 this period of quarantine. I^euckart allows that mature flukes 



