THH DAIRY HERD 119 



perature is one and a half degrees, the case may be con- 

 sidered suspicious. 



The needle and place of injection should be disinfected, 

 and care should be exercised not to excite the cows dur- 

 ing any period of the test. Do not retest for tuberculosis 

 within 60 days. As a rule every cow in the herd should 

 be tested once a year for tuberculosis. 



BARRENNESS. 



Causes. Lack of exercise, improper feeding, in-and- 

 in breeding, closing of the mouth of the womb, and an 

 acid condition of the vagina. 



Treatment. If over fat reduce the amount of feed and 

 give plenty of exercise. If the mouth of the womb is 

 closed, open by inserting the forefinger or by applying 

 solid extract of Belladonna to the part. An acid con- 

 dition of the vagina may be overcome by thorough syring- 

 ing with 2 per cent solution of bicarbonate of soda a 

 few hours previous to service. A treatment much recom- 

 mended lately is known as the yeast treatment and is 

 used as follows : Dissolve an ordinary compressed yeast 

 cake in a cup of warm water and allow to ferment. Add 

 this to a quart of warm water and use to wash out the 

 vagina some hours before service. The vagina should 

 be washed out with soapy water just previous to the 

 injection of the yeast solution. 



BLOAT OR HOVEN. 



Causes. Overeating, suddenly turning cows on rich, 

 green feed, like clover pasture, and fermentation of the 

 feed. There is as a rule a great deal of gas produced, 

 causing a great distention of the left side. 



Treatment. Immediately place a gag in the mouth, 



