Vaccinaton trial against Eimeria Magna coccidiosis using a precocious line.

Abstract

Thirty six 25-day-old suckling rabbits and thirty six 29-day-old rabbits weaned since one day were orally vaccinated with one of the two doses (3.5 x 10³ or 3.5 x 10⁴ oocysts) of a precocious line of Eimeria magna. Only the groups vaccinated with the highest dose displayed a vaccine reaction, but without diarrhea or mortality. A vaccination totaly or incompletely protected against disease, assessed by daily growyh rate patterns, according to the dose given and reduced oocyst output 10 to 1000 times, measured between the 4^th and the 10^th day following the challenge inoculation.