16 



The Pig Industry. 



[APRIL, 



properties. It is stated that the machine when operated under 

 regular conditions will give the desired results, but that for 

 commercial purposes the product was not uniformly satisfactory, 

 and that it was considered necessary for constructional modi- 

 fications to be made in the machine before it could come into 

 general use. 



The following is a summary of the conclusions arrived at 

 by the experimenters :• — 



1. The electro-pure process conducted under the conditions 

 indicated in these experiments gives a very satisfactory reduc- 

 tion in the number of bacteria in good raw milk, and a satisfac- 

 tory reduction in poor raw milk, and at the same time 

 effectively destroys nearly all lactose-fermenting, endo-positive 

 organisms in raw milk. m 



2. Milk issuing from the different units of the electro-pure 

 machine is fairly uniform in bacterial count. 



3. Electro-treated milk kept at 5 to 10 C. keeps well for 

 about five days. 



4. At room temperature electro -treated milk showed no change 

 in 24 hours, but soured normally in 48 hours. 



5. The destruction of bacteria in the electro-pure process is 

 apparently due to the heat produced by the electric current 

 rather than to the electric current itself. The electro-pure 

 process furnishes a method for producing a very sudden high 

 temperature for a brief period of time. 



6. The precipitation of albumen by the electro -pure process 

 at 70 C. is very slight, if any. 



7. The time required for coagulation by rennin is decidedly 

 increased after treatment by the electro-pure process at 70 C. 



8. The electro-pure process at 70 C. apparently does not 

 destroy the peroxidase in milk, but weakens the reductase. 



9. The electro-pure process has no effect on the feeding value 

 of milk. 



L 10. From a practical standpoint the electro-pure machine in 

 operation at this plant has not proved entirely successful in 

 the long run. Modifications in construction must be made 

 before the machine can be regarded as a commercial success. 



5|C »jc ?{* 5^ 



Need for Increased Production. — In 191 9 there were 2,914,000 

 pigs in the United Kingdom. On the basis of the consump- 



ThePi Industr tion in tliat y ear > ^ is estimated 

 e ig n us ly. ^ e num ber quoted would have to 



be increased by 6,700,000 (making a total of 9,614,000 pigs) 

 to make the United Kingdom self-supporting in bacon 

 and hams. The number reared in this country has seldom 



