After vaccination of the shrimps the production rate of the ponds rises significantly. Tierhygienisch relevante Produktionsfaktoren der intensiven Garnelenproduktion Thailands. Vaccination against vibriosis in the prawn. Versuche zur Schutzimpfung von Garnelen gegen Vibriosis in Thailand. Clostridial Immuno Preparations 4.1 Development of an In Vitro Method for Quality Control of Blackleg Vaccine International regulations for quality control of blackleg vaccines are based on the use of test animals.
Guinea pigs have to be vaccinated and afterwards challenged with fully virulent cultures.
The well protected animals survive for at least 5 days, the others will succumb and the control animals have to die. The obtained data led to ring tests, and next year to an international co-operation with further laboratories. Perspektiven zum Ersatz des Belastungsversuches bei Rauschbrandvakzinen. Antigene des C.chauvoei. Possibilities and Limits of In Vitro Assays for Quality Control of Blackleg Vaccines.