Quality assessment of Leghorn breeding eggs reared in semi extensive breeding system

Abstract

Analysis results regarding the external traits of breeding eggs quality originating from Leghorn breed reared in semi extensive system are given in this research. Research was done on the 55 egg sample, divided in to two categories according to weight: I group - eggs weighing up to 60 g (≤ 60 g) and II group - eggs weighing over 60 g (> 60 g). Aim of this research was to analyze the influence of weight group to base quality traits of eggs, such as weight, length, width, shape index in above mentioned breeding system. Obtained results point the fact that Leghorn breed in semi extensive breeding system achieves very satisfying results in terms of the base external quality characteristics of the eggs. Results of conducted research show that more attention should be given to the quality of eggs for planting, especially for pure breeds, then towards breeding goals with aim to improve their productive - reproductive traits, therefore preserving genetic potential of different breeds, species and races of poultry.

U radu su izloženi rezultati ispitivanja spoljašnjih osobina kvaliteta priplodnih jaja poreklom od Leghorn rase kokoši gajene u poluekstenzivnom sistemu držanja. Ispitivanja su izvršena na uzorku od po 55 jaja, podeljenih u dve težinske grupe i to: I grupa - jaja mase do 60 g (≤ 60 g) i II grupa - jaja mase preko 60 g (> 60 g). Cilj istraživanja je bio da se ispita uticaj težinske grupe na osnovne pokazatelje kvaliteta jaja, kao što su masa, dužina, širina i indeks oblika jaja u navedenom sistemu držanja. Dobijeni rezultati ukazuju na činjenicu da leghorn rasa kokoši u poluekstenzivnom sistemu gajenja ostvaruje zadovoljavajuće rezultate u pogledu osnovnih karakteristika spoljašnjeg kvaliteta jaja. Rezultati sprovedenih istraživanja ukazuju na to da je potrebno posvetiti veću pažnju ispitivanju kvaliteta jaja za nasad, naročito kod čistih rasa kokoši, zatim pravcu odgajivanja u cilju poboljšanja njihovih proizvodno – reproduktivnih sposobnosti, a samim tim i očuvanja genetskog potencijala različitih vrsta, rasa i sojeva živine.