UTJECAJ DODATKA SREDNJELANČANIH MASNIH KISELINA 'AROMABIOTIC' U HRANU BROJLERA NA PROIZVODNE REZULTATE

U cilju postizanja boljih proizvodnih rezultata u tovu peradi, u hranu se dodaju različiti dodatci među kojima su i organske kiseline i njihove soli. Njihova uporaba odobrena je u većini država članica EU. Uporaba organskih kiselina štiti zdravlje mladih jedinki na principu konkurentnog isključivanja, poboljšanja korištenja hranjivih tvari, poboljšanja rasta i iskorištavanja hrane. Uloga masnih kiselina kratkih lanaca (SCFA- Short-chain fatty acid ) i srednjelančanih masnih kiselina (MCFA-medium chain fatty acid) u kontroliranju infekcija i održavanju zdravlja i integriteta probavnog sustava potvrđena je mnogobrojnim pokusima. U cilju istraživanja utjecaja pripravka srednjelančanih masnih kiselina (Aromabiotic) u hranu brojlera proveden je pokus na 180 jednodnevnih brojlera provenijencije Cobb 500, podijeljenih u tri skupine po 60 brojlera. Kontrolna skupina brojlera (K) hranjena je smjesom standardnog kemijskog sastava bez dodatka kokcidiostatika i bez pripravka masnih kiselina srednjeg lanca. Prva pokusna skupina (E-I) brojlera hranjena je hranom standardnog kemijskog i sirovinskog sastava s dodatkom kokcidiostatika (salinomicin) i dodatkom masnih kiselina srednjeg lanca (Aromabiotic). Druga pokusna skupina tovnih pilića (E-II) hranjena je smjesom standardnog kemijskog i sirovinskog sastava uz dodatak masnih kiselina srednjeg lanca (Aromabiotic) i bez kokcidiostatika. Prosječna tjelesna masa na kraju tova brojlera u kontrolnoj skupini bila je 1888,62 ± 264,36 g, u prvoj pokusnoj skupini 2142,57 ± 203,71 g, a u drugoj pokusnoj skupini 2102,96 ± 224,84 g. Najbolju konverziju imala je E-II skupina tovnih pilića (1,61), zatim skupina E-I (1,64), a najgoru kontrolna skupina (K) (1,89).
In order to achieve better results in fattening poultry various additives including organic acids and their salts are added in feed. Their use is authorized in most EU Member States. The use of organic acids protects the health of young animals on the principle of competitive exclusion, improving the use of nutrients, improving growth and feed efficiency. The role of fatty acid short-chain (SCFA- Short-chain fatty acid) and medium-chain fatty acids (MCFA-medium chain fatty acid) in controlling infections and maintaining the health and integrity of the digestive tract has been confirmed by numerous experiments. In order to investigate the impact of adding a mixture of medium chain fatty acids (Aromabiotic) in feed for broilers an experiment was organized on 180 day-old broilers Cobb 500, divided into three groups of 60 broilers. The control group of broilers (K) was fed with a mixture of standard chemical composition of a given provenience no added coccidiostat and without preparation of medium chain fatty acids. The first experimental group (E-I) of broilers received the feed of standard chemical and raw material composition with the addition of coccidiostats (salinomycin) and with the preparation of medium chain fatty acids (Aromabiotic). The second experimental group of broilers (E-II) was fed with a mixture of standard chemical and raw material composition with the addition of medium chain fatty acids (Aromabiotic) and without the coccidiostat. At the end of fattening the body weight of broilers in the control group was 1888.62 ± 264.36 g, in the first experimental group 2142.57 ± 203.71 g, and in the second experimental group 2102.96 ± 224,84 g.The best conversion had the E-II group (1.61), followed by E-I group (1.64) and the worst the control (K) group of broilers (1.89).