May 1, 1920 Effect of Drugs on Milk and Fat Production 125 



Frohner.^ All the drugs except No. 6 were given mixed with the grain 

 feed twice daily. 



DRUGS USED 



1. Food tonic consisting of 100 pounds oil meal, 5 pounds saltpeter, 

 5 pounds epsom salts, 5 pounds gentian, 5 pounds fenugrek, 8 pounds 

 powdered charcoal, and 5 pounds sulphur, fed at the rate of 2 ounces 

 daily per cow in two feeds. 



2. Air-slaked lime, fed at the rate of 2 ounces daily per cow in two 

 feeds. 



3. Fowler's solution of arsenic, fed at the rate of 2 fluid ounces daily 

 per cow in two feeds. 



4. Gentian fed at the rate of 2 ounces daily per cow in two feeds. 



5. Tonic mixture consisting of the following: 3 ounces black sulphid 

 of antimony; iX ounces sulphur; 5 ounces each of fennel, caraway, and 

 juniper berries, i pound common salt, fed at the rate of 2 ounces daily 

 per cow in two feeds. 



6. One gr. physotigmine sulphate injected hypodermically daily per 

 cow, yi grain in two doses. 



7. Sodium bicarbonate, fed at the rate of 2 ounces daily per cow in 

 two feeds. 



8. Ginger, fed at the rate of 2 ounces daily per cow in two feeds. 



EXPERIMENTAL RESULTS 



Figures i to 8 present graphically the individual milk and butter-fat 

 yield of each cow. A solid line is used for the control period and a dotted 

 line for the experimental period. 



Figure I shows the results of the tonic mixture. There was a slight in- 

 crease in fat for the pure-bred Holstein and for one of the Guernseys, but 

 the other cows showed no perceptible change. The milk yield was slightly 

 increased for one Guernsey and slightly decreased for the other three 

 cows. 



Figure 2 shows that air-slaked lime increased the fat yield in two cases 

 and the milk yield in two cases. 



Figure 3 shows that when Fowler's solution of arsenic was used, two 

 cows increased in fat production and three in milk production. 



Figure 4 indicates that powdered gentian has a tendency to increase 

 fat yield slightly but has little effect on milk production. 



Figure 5 shows that the German tonic mixture did not increase either 

 fat or milk production. 



Figure 6 seems to indicate that physostigmine sulphate has a depressing 

 effect on both milk and fat yield. 



Figure 7 unfortunately shows the fat record for only three cows. 

 There is no indication of any appreciable effect of sodium bicarbonate on 

 production 



> FRreoBERGER. Franz, and Prohner, Eugen. op. at. 



