14. Should the authorities later decide to allow the sale of this B. f. milk, it is recommended that licenses be issued, out of the proceeds of which veterinary physicians be appointed to see that this B. f. milk is produced in accordance with these regulations.
15. Containers for B. f. milk should have trademarked labels indicating that the milk has been produced in conformity with the requirements. Beside this the label should bear in clear figures the time and date of milking.
16. Whenever for any reason it is impossible to raise a calf directly on the udder, B. f. milk should be preferred to milk sterilized by heat. In the production of B. f. milk tubercular and suspected tubercular cows are to be excluded on principle.
17. Where it is desired to suppress an infectious process in the digestive system of cattle, the temporary employment of a stronger formaldehyde milk (1:25,000 to 1:16,000) under the direction of a veterinary physician is recommended.
18. In the suppression of “Kälbersterbe,” beside the increased requirements regarding the cleanliness of attendants’ clothing and body, of stable and stable utensils, the proper care of the navel with the aid of ⅖% aqueous solution of formaldehyde is recommended.
19. The radical suppression of bovine tuberculosis by means of my protective inoculation is to be sought for.
20. The following article shows the method of making these inoculations at present in use at Marburg.
SYNOPSIS FOR PROTECTIVE INOCULATION OF CATTLE IN AGRICULTURAL PRACTICE.
GENERAL CONSIDERATIONS.
For the protective inoculation carried out by us in practice we make use of “Mxt. Tb.” in the form of our “Culture No. 1,” which has been studied by us for years and which we have minutely described in the Beiträge, Nos. 5 and 6. The accumulation of orders for this virus on the one hand and the multitudinous experimental labors in the institute here on the other, compelled us to rid ourselves of the technical labor of manufacture, weighing off and shipping of the virus, which accordingly has been undertaken by the local firm of Drs. Siebert & Ziegenbein. The virus, however, continues to be tested as to purity, virulence, etc., in the scientific department of the institute at Marburg.