P. Sans et Jl. Guerin, PROPHYLAXIS METHODS AND THEIR COSTS IN BR EEDING AND CRAMMING OF MULARD DUCKS, Revue de Medecine Veterinaire, 149(2), 1998, pp. 149-153
Prophylaxis methods in a sample of 64 rearing-units and 61 cramming-un
its have been studied during year 1995. The survey shows their diversi
ty considering both systematic and ocasional treatments. So, the mean-
cost of drugs per duck presents a high dispersion. It emphasizes the i
nterest of prevention schedules suitable to technical features of bree
ders and cramming units.