SLAUGHTER VALUE OF SELECTED BREEDS OF VILDFOWL

Cilj ovog rada bila je usporedba klaoničkog randmana i randmana značajnih organa i tkiva između šest vrsta pernate divljači: divljeg purana (Meleagris gallopavo), biserke (Numida meleagris), čukare (Alectoris chucar), japanske prepelice (Coturnix coturnix japonica), običnog fazana (Phasianus colchicus) i trčke skvržulje (Perdix perdix). U svrhu istraživanja u siječnju 2007. godine od svake je vrste zaklano i analizirano10 ptica (5 mužjaka i 5 ženki). Navedena pernata divljač uzgojena je pod istim uvjetima u uzgajalištu peradi u Jinačovice (Češka republika), u uzgojnom centru u sklopu Veterinarskog i farmaceutskog fakulteta Sveučilišta u Brnu. Pernata divljač uzgajana je u volijerama s istovjetnim sustavom hranjenja i pojenja, a za istraživanje odabrana je metodom slučajnog izbora. Odmah nakon odabira pernata divljač je izvagana, zaklana i klaonički obrađene na klasičan način, slično kao i pilići u tovu. Posebna pozornost posvećena je masi trupa, vrata, srca, jetre, želuca, abdominalne masti, prsnih mišića, bataka (s kožom i bez kože), zabataka, te muskulaturi zabataka i bataka. Na temelju dobivenih podataka, s obzirom na živu masu pernate divljači izračunat je klaonički randman i randman pojedinačnih organa i tkiva. Iz dobivenih rezultata istraživanja proizlazi da su razlike u klaoničkom randmanu i randmanu istraživanih organa i tkiva meču pojedinim vrstama pernate divljači značajne (P< 0,05). Najveći klaonički randman utvrđen je kod prepelica (71,14 %), nešto niži kod biserki (70,61 %), običnog fazana (69,74 %), trčke skvržulje (69,09 %) i čukare (68,92 %), a najniži kod divljeg purana (67,99 %). Značajne razlike (P<0,05) meču prosječnim vrijednostima dokazane su između prepelice i purana, prepelice i čukare, biserke i purana te biserke i čukare. Na sličan način razmatrane su i razlike između pojedinačnih vrsta pernate divljači u pogledu pokazatelja kakvoće klaonički obrađenog trupa.The aim of this study was to compare the slaughter dressing and the dressing of characteristic organs and tissues of six breeds of wildfowl: wild turkey (Meleagris gallopavo), guinea-fowl (Numida meleagris), chukor (Alectoris chucar), Japanese quail (Coturnix coturnix japonica), common pheasant (Phasianus colchicus) and grey partridge (Perdix perdix). For the purpose of the study, in January 2007, 10 birds of each species were slaughtered (5 males and 5 females)and analysed. The birds were bred in equal conditions in the breeding centre of the Veterinary and Pharmaceutical Faculty, University in Brno. The birds were bred in roosts applying equal system of feeding and watering systems and were randomly selected for the study. Immediately following the selection the birds were weighed, slaughtered and processed in the conventional method, similar to that in chickens intended for slaughter. A special attention was paid to the weight of the trunk, neck, heart, liver, stomach, abdominal fat, breast muscles, drumsticks (with and without skin), upper legs and the muscles of the upper legs and drumsticks. On the ground of the data obtained with respect to the live weights of the birds, slaughter dressing and the dressing of individual organs and tissue were calculated. The results obtained show that differences in slaughter dressing and the dressing of the investigated organs and tissue between some breeds are significant (P<0,05). The highest slaughter dressing was faund in Japanese quail (71.14 %), slightly lower in guinea fowl (70.62 %), common pheasant (69.74 %), grey partridge (69.09 %) and chukor (68.92 %) and the lowest in wild turkey (67.99 %). Statistically significant differences (P