| Abstract | U ovom diplomskom radu istražene su mogućnosti upotrebe sedimentnog pijeska i njegov utjecaj na proizvodne pokazatelje hibridnih pilića. Kroz ovaj pokus korišten je hibrid Ross, ukupno 120 muških pilića u trajanju do 42 dana starosti, a slučajnim izborom kao jednodnevni pilići razvrstani u šest skupina po dvadeset. Pilići kontrolne skupine (K) jeli su krmnu smjesu bez dodatnog sedimentnog pijeska, a dvije pokusne (P 0,5 i P 1,0) jeli su krmnu smjesu s umješanih 0,5%, tj. 1,0% sedimentnog pijeska. U starosti od 35 dana pilići kontrolne skupine postigli su tjelesnu masu od 2189,75 g, a pilići pokusnih skupina ostvarili su prosječno veće tjelesne mase za 37,94 g, tj. 36,57 g. Na kraju tova (42 dana) kontrolna skupina pilića postigla je prosječnu tjelesnu masu od 2895,68 g, dok su pokusne skupine pilića veće za 69,45 g, tj. 52,43 g. Konverzija hrane u odnosu na kontrolnu skupinu (1,58 kg) bila je manja za 3,27% (P 0,5) tj. 1,27% (P 1,0). Protiv newcastleske bolesti prema cijepivu brzina nastupa specifične imunosti u odnosu na kontrolnu skupinu bila je veća u obje skupine kojima je u hranu bio dodan sedimentni pijesak. Proizvodni uspjeh prema europskim čimbenikom učinkovitosti proizvodnje (EPEF) u kontroliranih pilića iznosio je 419,89 (35. dana tova) tj. 362,12 (42. dana tova, u skupini P 0.5 427,98 (35. dana tova) i 449,89 (42. dana tova), te u skupini P 1,0 416,75 (35. dana tova) i 427,37 (42. dana tova). Povoljno su djelovale obje dodane količine sedimentnog pijeska, ali dodanih 0,5% sedimentnog pijeska posebno se pokazalo značajnim (razlika od kontrolne skupine 42. dana tova je 87,77 indeksnih jedinica). U obje pokusne skupine trbušne masti bilo je manje (35,29 i 34,49 g) u odnosu na kontrolnu skupinu (42,28 g) kojoj u hrani nije dodan sedimentni pijesak. |
| Abstract (english) | In this graduate thesis were explored the possibilities of using sedimentary sand and his impact on production indicator of hybrid chickens. In the 42 day study were used 120 male chicken hybrid Ross, which are by random selection as broiler chickens deployed into six groups of twenty chickens. The chickens of the control group (K) were fed with feed mixture without the supplement of sedimentary sand and two experimental groups (P 0,5 and P 1,0) were fed with feed mixtures that is hand-stirred into 0,5 % and 1,0 % sedimentary sand. At the age of 35 days chickens of the control group come to a body weight of 2189,75 g, the chickens in the experimental group had the average larger body weight for 37,94 g or 36,57 g. At the end of the fattening period (42 days), control group chickens achiered the mean weigh of 2895,68 g, while the mean weigh experimental group of chickens were heavier for 69,45 g or 52,43g. Feed conversion in the experimental group to the control group (1,58 kg) was lower by 3,27 % (P 0,5) and 1,27 % (P 1,0). Against Newcastle disease, the rate of appearance of specific immunity compared to control group was higher in both groups in which sedimentary sand was added to the food. The production succes per European factor production efficiency (EFPE) in control chickens was 419,89 (35th day) and 362,12 (42nd day), while in the P 0,5 group it was 427,98 (35th day) and 449,89 (42nd day) and in the P 1,0 group 416,75 (35th day) and 427,37 (42nd day). From all of the above, it's visible that both added amounts of sedimentary sand had positive effect, but added 0,5 % of sedimentary sand especially was showed significant (the difference from the control group on day 42 of fatteing is 87,77 index units). In bouth experimental groups abdominal fat was less (35,29 g and 34,49 g) than the control group (42,28 g) where sedimentary sand was not added. |
