Effect of humic substances and probiotics on growth performance and meat quality of rabbits
Keywords:meat, quality, rabbits, humic substances, probiotics
The aim of this work was determined effect of supplemental humic substances and probiotics on growth performance and meat quality of rabbits. The growth performances were observed on two hundred and twelve growing rabbits assigned randomly by weight to two treatments. The treatments included: 1) Control group: in this group were rabbits fed with basal diet during all experiment (35th – 77th day), 2) experimental group: the animals were fed with basal diet+3kg/t humic substances – Humac Nature during whole experiment. In this group was during fattening period (35th – 49th and 63rd – 70th days of age) added to feed the probiotic preparation – Propoul (Lactobacillus fermentum CCM 7158 1x108 CFU) 2 g per ten pieces. Body weight and feed intake were measured weekly in order to determine the average daily gain, average daily feed intake and gain/feed. The characteristics of meat quality were determined on twelve rabbit males at the age of 77 days, when the rabbits achieved average slaughter weight 2500g. Results of the whole experimental period showed that addition humic substances and probiotic preparation to the diet had positive effect (not significantly) on intensity of growth live weight in the last phase of fattening period. The results of this study suggest that humic substances with probiotics might be utilized as a feed additive in the rabbit diet. It could not significantly improve growth performance and meat quality of rabbits.
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