Comparative examination of qualities of yolk in light line hybrids

Abstract

The study presents results of examination of qualities of consumable eggs of two light hen types, Shawer 579 and Hisex Brown. Every four week, on the sample of 30 eggs for each hybrid, internal qualities of eggs were examined. This examination confirmed the rule that with the age, mass of yolk increases, too. A little greater height of yolk was found in hens Shawer 579. Mass, color and diameter of yolk were almost the same in both examined types. Generally, both examined hybrids gave satisfying results regarding qualities of yolk.

U radu su prezentovani rezultati ispitivanja kvaliteta konzumnih jaja dve provenijence lakog tipa kokoši: Shaver 579 i Hisex Brown. Svake četiri nedelje, na uzorku od 30 jaja za svaki hibrid, obavljeno je ispitivanje unutrašnjih osobina kvaliteta jaja. Ovim ispitivanjem je potvrđeno pravilo da se sa starošću nosilja povećava masa žumanca. Nešto veću visinu žumanca imale su kokoši Shaver 579. Masa, boja i prečnik žumanca, kod obe ispitivane provenijence kokoši, bile su približno iste. Uopšte posmatrano, oba ispitivana hibrida, u pogledu osobina kvaliteta žumanca ispitivanih jaja, dala su zadovoljavajuće rezultate.