Chemical composition of meat of laying hens in alternative rearing systems

Abstract

The aim of this paper was to estimate the effect of rearing systems (floor and organic) on the chemical composition of meat of laying hens. The tested genotypes were Isa Brown hybrid and dual purpose breed New Hampshire. Based on the results of this research can be concluded that the rearing system, generally, did not caused statistically significant differences in any of the parameters examined chemical composition of meat. On the other hand, the breast meat - white meat and thigh and drumstick - dark meat of New Hampshire genotype had significantly higher fat content compared to the Isa Brown hybrid. It must be noted that in the breast meat reported significant interaction genotype x rearing system. The other parameters of the chemical composition of meat were not significantly different between reared genotypes.

Cilj ovog rada je bio da se ispita uticaj sistema gajenja na hemijski sastav mesa kokoši nosilja iz alternativnih sistema gajenja: podnog i organskog. Ispitivani genotipovi su bili linijski hibrid Isa Brown i rasa kombinovanih proizvodnih sposobnosti New Hampshire. Na osnovu rezultata ovih istraživanja može se zaključiti da sistem gajenja, generalno posmatrano, nije uzrokovao značajne razlike ni u jednom od ispitivanih parametara hemijskog sastava mesa. Sa druge strane, i meso grudi - belo meso i meso bataka i karabataka - tamno meso, New Hampshire genotipa je imalo značajno veći sadržaj masti u odnosu na Isa Brown hibrid, s tim što se mora napomenuti da se kod mesa grudi, javila i značajna interakcija sistem gajenja x genotip. Ostali ispitivani parametri hemijskog sastava mesa nisu se značajno razlikovali između ispitivanih genotipova.