THE EFFECT OF APPLICATION OF PROBIOTICS BASED ON BACILLUS CIP-5832 ONUTILITY AND ECONOMICAL PARAMETERS IN DUCK FATTENING

The effect of feed mixtures VKCH 1 and VKCH 2 supplementation with bac teria Bacillus C.I.P. 5832 was studied in the form of feeding comparat ive experiment in Peking duck fattening under experimental conditions in RIAN Pohorelice (Czech Republic) in 1992. The average weights of du cks at the age of 3, 5 and 7 weeks were significantly higher (P < 0,05 ) by 4, 3 and 3%, respectively in the group fed feed mixtures with pro biotics (VKCH 1 supplemented with 5.10(5), and VKCH 2 with 6.10(5) Bac illus C.I.P. 5832/g) as compared with control. The consumption of mixt ure VKCH 1 per 1 kg of weight increment was by 6% higher in the group with probiotics as compared with the control group. The consumption of mixture VKCH 2 per 1 kg of weight increment was by 2% lower in the gr oup with probiotics as compared with control. The total consumption of mixtures per 1 kg of weight increment of ducks in the group with appl ication of bacteria Bacillus C.I.P. 5832 was by 2% lower as compared w ith control. Ducks fed mixtures with probiotics reached better grading of final product in control slaughtering as compared with control. Pr ice of realization of 1 kg of duck from the group fed mixtures with pr obiotics was by 0.75 Kc higher. Since costs for mixtures were higher b y 0.26 Kc per 1 kg of live weight in this group as a result of probiot ics supplementation, the final profit (effect) of probiotics PACIFLOR application amounted 0.49 Kc per 1 kg of fatted ducks.