Effects of dietary n-3 polyunsaturated fatty acids and ... - FINS
Effects of dietary n-3 polyunsaturated fatty acids and ... - FINS
Effects of dietary n-3 polyunsaturated fatty acids and ... - FINS
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1 st WorkshopXIII International Feed Technology SymposiumINVESTIGATION OF THE EFFECT OF CITRUS FENNELAROMA ON PRODUCTION, USE OF NUTRITIOUSSUBSTANCES AND SLAUGHTER RESULTS IN FATTENINGCHICKENSM. Saftić 1 , B. Živković 2 , D. Čotinski 3 , D. Belorečkov 3 , M. Ignatova 31 Ireks-Aroma, Zagreb, Croatia2 Institute for Animal Husb<strong>and</strong>ry, Belgrade-Zemun, Serbia3 Institute <strong>of</strong> Animal Science, Kostinbrod, BulgariaABSTRACTThe effects <strong>of</strong> addition <strong>of</strong> aroma Citrus Fennel in the nutrition <strong>of</strong> fattening chickens werestudied. Obtained results showed that positive effects <strong>of</strong> use <strong>of</strong> investigated aroma arereflected in increase <strong>of</strong> body mass <strong>of</strong> chickens by 5.5%, increase <strong>of</strong> daily gain by 5.72%,increase <strong>of</strong> feed intake by 2.4%, improvement <strong>of</strong> feed conversion ratio by 3.1%.Addition <strong>of</strong> investigated aroma had no significant effect on protein <strong>and</strong> energy balancein chicken organism. Amount <strong>of</strong> abdominal fat decreased by 15.5% by adding <strong>of</strong> CitrusFennel aroma to mixture for the chickens.In general, obtained results showed that by introduction <strong>of</strong> aroma Citrus Fennel apositive effects in the nutrition <strong>of</strong> fattening chickens were realized.Key words: Citrus fennel, performance, balans, slaughter results, chickensINTRODUCTIONLimitation <strong>and</strong> prohibition <strong>of</strong> use <strong>of</strong> antibiotics as growth stimulators <strong>and</strong> promoters inanimal nutrition have lead to need for application <strong>of</strong> additives <strong>of</strong> plant origin [4, 13],mainly extracts <strong>of</strong> medicinal herbs <strong>and</strong> spices.Common trait <strong>of</strong> all plant extracts is their aroma. Due to differences in chemicalcomposition it is plant specific. Chemical analysis <strong>of</strong> the composition <strong>of</strong> plant extractsindicates diversity <strong>of</strong> chemical substances which have not only aromatic ingredients, butalso different biological effect.Plant extracts <strong>and</strong> oils have antimicrobial, antivirus, antifungal, antioxidative <strong>and</strong>immuno stimulating properties [14, 3, 1, 4]. Also, there are data indicating that [18, 13]extracts promote secretion <strong>of</strong> bile <strong>and</strong> activity <strong>of</strong> the pancreas enzymes. Also, some plantextracts can reduce stress which has negative impact on immunological system [17, 16].Addition <strong>of</strong> semi-synthetic aroma (sukran-810) to food which balances the sweet taste<strong>and</strong> aroma has positive impact on consumption <strong>of</strong> food <strong>and</strong> broiler growth [2].Regardless <strong>of</strong> the realized research on multiple effect <strong>and</strong> action <strong>of</strong> plant extracts <strong>and</strong>oils, there are relatively few literature data on the effect <strong>of</strong> aroma citrus fennel ongrowth, utilization <strong>of</strong> nutritious substances <strong>and</strong> slaughter results in poultry.Because <strong>of</strong> fore mentioned, objective <strong>of</strong> this work was to determine the effects <strong>of</strong> theintroduction <strong>of</strong> stated aroma on growth rate, food consumption <strong>and</strong> feed conversionratio, utilization <strong>of</strong> nutritious substances <strong>and</strong> slaughter results in fattening chickens.136
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