Aids to stockowners / by J. Walker.

  • John Walker
Date:
1930
Catalogue details

Licence: In copyright

Credit: Aids to stockowners / by J. Walker. Source: Wellcome Collection.

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    must not be expected that the mortality will always stop immediately after inoculation. The protection afforded by the vaccine is expected to last about nine to twelve months but, as is the case with all makes of blaekquarter vaccines, the im¬ munity must be considered to become gradually weaker after the sixth month. For this reason it may be advisable to re-inoculate young stock during the most susceptible period, i.e. between the ages of nine and eighteen months, after an interval ol six months; this extra precautionary measure is recommended especially on badly-infected farms and particu¬ larly in the case of valuable cattle. 9. After using the vaccine, instruments should be thoroughly sterilized in clean water before putting them away ; also any vaccine left over in an opened bottle should be thrown away, as the vaccine will not keep once the bottle has been opened. 10. Every care is taken in the preparation of the vaccine, but no guarantee regarding its safety or efficacy is given. 11. In case of any complaints, the Chief Veterinary Research Officer will be pleased if all details are communicated t-o him immediately. FOOT-AND-MOUTH DISEASE. This is an acute febrile infectious disease, in the course of which a vesicular eruption develops, particularly in the mouth and in between the claws and on other parts of the foot; hence the name “foot-and-mouth disease.” The lesions may also occur on the skin, particularly of the teats in females. The mortality from foot-and-mouth disease in this country is not serious, but from an economical point of view the disease is of importance, particularly if it occurs in dairy herds, owing to the loss in milk production; in beef herds there is usually loss of condition, especially if an outbreak occurs when there is a scarcity of grazing and water necessi¬ tating affected animals travelling some distance. Animals affected. Animals other than bovines which are susceptible are domestic ruminants and some species of game. Pigs also suffer. The disease rarely attacks the horse, the dog and the domestic fowl. Human beings, especially children, may contract the disease through the milk of affected animals.
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