Diseases of swine, with particluar reference to hog-cholera . ase of those that are treated on theplace by means of the double treatment, they can be immediatelyturned into an infected feed lot without any danger, and, if they re-main well at the end of the three-week period which should elapsebetween giving of the double treatment and hyperimmunization,they may safely be regarded as suitable subjects for injection withthe large doses of virus. MANUFACTURE OF HOG-CHOLERA SERUM 345 In injection of the virus it is necessary, first of all, to restrain theanimal in some sort of suitable apparatus.
Diseases of swine, with particluar reference to hog-cholera . ase of those that are treated on theplace by means of the double treatment, they can be immediatelyturned into an infected feed lot without any danger, and, if they re-main well at the end of the three-week period which should elapsebetween giving of the double treatment and hyperimmunization,they may safely be regarded as suitable subjects for injection withthe large doses of virus. MANUFACTURE OF HOG-CHOLERA SERUM 345 In injection of the virus it is necessary, first of all, to restrain theanimal in some sort of suitable apparatus. For this purpose alarge number of appliances and crates have been devised. Prac-tically every serum manufacturer has some sort of apparatus of hisown for the purpose. At some plants the hog is simply strappeddown firmly on a flat operating table. In others it is fastenedin a stanchion. In the majority of cases it is secured in someform of crate. The main object is to secure the animal with theleast amount of inconvenience and handling, and at the same time. -Hyperimmunizing by intravenous White.) (Photo by Dr. Geo. have the head accessible to the operator. The apparatus shown inFig. 63 is a very suitable one. Either before being placed in the crate or immediately after-ward the animal should be weighed. In most plants the crates arearranged on rollers, so that they can be rolled on the platformscales as soon as the animal has been secured in position and theweight taken. The weight of the crate is already determinedby previous weighing, and this, subtracted from the total weight,gives the weight of the animal. These figures should then be care-fully recorded on the record card of this animal. The weight is of 346 DISEASES OF SWINE importance not only at the time of injection, but also is essentialfor comparative purposes later on when bleeding is animal should show a gain in weight during the week or tendays that elapse between date of hyperimmunizati
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherphila, bookyear1914
