DOSE-DEPENDENT RELATIONSHIP EFFECT OF PROBIOTIC VETOM 1 ON CUMULATIVE PARAMETERS OF JAPANESE QUAIL EGG PRODUCTION

Abstract

The authors investigated the effect of probiotic Vetom 1 based on Bacillus subtilis strain DSM 32424 with concentration of active component 106 CFU/g on cumulative indices of Japanese quail egg-laying. The specimen was applied in doses of 50, 75 and 100 mg/kg of the live weight of quails. The probiotic Vetom 1 increases the number of ovulating birds. The maximum increase in this indicator was observed when using Vetom 1 dosed as 50 mg/kg of the body weight. The egg mass variability depends completely on the dose. Being used in a dose of 50 mg/kg weight, a higher variability of the egg mass was observed. This pattern has not been recorded in the maximum studied dose. The cumulative function in terms of eggs in unit and mass equivalents is slightly expressed in the initial period when applying Vetom 1. In the final period of specimen applying, the highest accumulation is observed when using Vetom 1 in a dose of 50 mg/kg of mass. When applying Vetom 1 in doses of 75 and 100 mg/kg, a direct correlation between ovulation frequency and egg weight was observed only in the initial period of the specimen applying, and the dose of 50 mg/kg - only for the eighth day of it.