318 Missouri Agricultural Report. 



the catarrhal condition is slight and the generative organs may 

 regain their normal state. In other cases only one horn of the 

 uterus may fully regain its normal condition, with the result 

 that the sow has small litters of pigs. I do not wish to be under- 

 stood as claiming that hog cholera or the simultaneous method 

 will inevitably produce abortion or lead to sterility, for some 

 sows will withstand the disease and produce large litters of pigs. 

 But a sufficient number are affected to make it a serious matter 

 for the breeders of registered swine. You men are justly proud 

 of the prolificacy of the Duroc breed, and I do not believe you 

 can afford to risk lowering the record by resorting to a question- 

 able method of controlling hog cholera or trying to meet a mis- 

 taken trade demand. 



In the matter of trade demand, we could learn a good les- 

 son from Canada. Those of you who have shipped hogs to 

 Canada know that one of the requirements is that the animals 

 to be shipped must be healthy and that cholera has not existed 

 on your farm during the preceding six months, and moreover, 

 that there was no cholera-infected farm within a radius of five 

 miles of your farm at the time of the shipment; also, that proper 

 precautions shall be taken in shipment to prevent the animals 

 from becoming infected in transit. Nor do the Canadians want 

 you to send them breeding swine that have been injected with 

 hog cholera virus and serum — in other words, treated by the 

 "simultaneous method." They fear the danger of such animals 

 carrying infection. If the Canadian requirements were in force 

 in Missouri for local and interstate trade in breeding swine, how 

 busy all you breeders would get in the work of eradicating hog 

 cholera from the State. Each of you would become a leader in 

 the organization of a local club that would put into operation, 

 on every farm within five miles of your farm, the measures that 

 we are advocating in our state-wide campaign against hog chol- 

 era. This is a campaign that emphasizes the fact that the con- 

 trol and eradication of hog cholera is in the main the farmers' 

 job, and that the means to be employed are for the most part 

 simple and inexpensive, consisting of old, time-tested methods of 

 sanitation which need to be applied, not solely to an individual 

 farm here and there, but to a large number of contiguous farms 

 in a neighborhood. Organization that will bring about intelli- 

 gent co-operation in "simultaneous stock farmsanitation" is 

 what we need. This is the kind of "simultaneous" treatment 

 that will rid your farms and your county and the State of hog 



