THE EFFECT OF LONG-TERM AEROBIC STORAGE OF DOGS' EXCREMENTS WITH OR WITHOUT DUST REJECTS FROM LIME PRODUCTION ON THE SURVIVAL OF MODEL HELMINTH EGGS

摘要

The effect of long-term storage (73 days) of dogs excrements mixed with hay in the ratio of 1:5 with or without dust rejects from lime production on the survival of model helminth eggs was studied under laboratory conditions. An application of dust rejects to the mixed dogs' excrements at a concentration of 20 g.kg~(-1) of organic wastes, resulted in a devitalisation of 65.65 ±2.84% and at a concentration of 70 g.kg~(-1) devitalisation of 77.05 ±2.36% of model uneinbryonated Ascaris suum eggs within 24 hours. A. suum eggs were totally devitalised as early as within 8 days in dogs' excrements after application of dust rejects at a concentration of 70 g.kg~(-1) and within 21 days after application of dust rejects at a concentration of 20 g.kg~(-1).Devitalisation of 87.23 ±3.21% of eggs was obtained in the control without dust reject in the end of experiment. For the sanitation of organic wastes from animal production and dogs' excrements, the use of dust rejects from lime production, at more affordable price than quality lime dust, is very suitable.