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2020, vol. 36, br. 2, str. 181-190
Kvalitet jaja kokoši nosilja različitog genotipa gajenih na pašnjaku
aInstitut za stočarstvo, Beograd-Zemun
bUniverzitet u Kragujevcu, Agronomski fakultet, Čačak
cInstitut za primenu nauke u poljoprivredi, Beograd

e-adresazskrbic@istocar.bg.ac.rs
Projekat:
451-03-68/2020-14

Ključne reči: kvalitet jaja; genotip; nativne rase; alternativna proizvodnja
Sažetak
Komparacija fizičkih osobina kvaliteta konzumnih jaja kokoši komercijalnog hibrida Tetra SL i dve nativne autohtone rase kokoši, banatska gološijanka i svrljiška kokoš, izvršena je u uslovima alternativne proizvodnje u pašnjačkom sistemu gajenja u portabl kavezima bez poda. Ogled je sproveden u toku vegetacionog perioda, u uzrastu kokoši 53-57 nedelja. U cilju proizvodnje jaja dobrog kvaliteta, ishrana je vršena kompletnom smešom na bazi kukuruza i soje. Pored toga, obezbeđena je konstantna dostupnost pašnjaka. Uzorkovanje jaja je bilo u jutarnjim satima i ispitivan je inicijalni kvalitet jaja baziran na masi jajeta, indeksu oblika, parametrima kvaliteta belanca, žumanca i ljuske. Nosilje komercijalnog hibrida Tetra SL su imale značajno veću masu jajeta i bolji unutrašnji kvalitet jaja (p<0.01) u odnosu na kokoši banatske gološijanke i svrljiške kokoši, osim boje žumanca koja je u istim uslovima ishrane i gajenja, kao i uzrasta nosilja, bila intenzivnija kod jaja nativnih rasa (p<0.01). Nativne rase u odnosu na komercijalni hibrid imaju svetliju boju ljuske (p<0.01). Deformacija i debljina ljuske su se razlikovale (p<0.01) između sva tri genotipa. Utvrđeni rang genotipova nosilja za debljinu ljuske je bio: Tetra SL, banatska gološijanka, svrljiška kokoš. Međutim, sila loma je bila bez statistički potvrđene razlike između genotipova kokoši.
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O članku

jezik rada: engleski
vrsta rada: izvorni naučni članak
DOI: 10.2298/BAH2002181S
objavljen u SCIndeksu: 26.07.2020.
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