Production-economic results in hatching eggs production for Arbor Acres laying hens

Abstract

Investigations were carried out on Arbor Acres laying hens divided into two experimental groups, with group! having an initial mass of 2.70 kg, and group II of 2.15 kg. On entering exploitation, the laying hens were 22 weeks old and the experiment lasted 43 weeks. The production results were followed and analyzed according to the periods of exploitation: the first period was from 23-44 weeks, the second period from 45-52 weeks, and the third period from 53-65 weeks. The percent egg-laying ability and hatching egg production were statistically important in group I in the first period (p0.05) totally in the second and in the third periods, or in feed utilization per laying hen or mortality of laying hens. Based on analytical calculations, a 6.30% higher profit was established per egg for laying hens of group I, and a critical point of production feasibility was determined in a projection of hatching egg production with laying hens of bigger initial mass in the 2.38th month of exploitation, at a production scale of 68,132 hatching eggs.

Sprovedena ispitivanja obavljena su na nosiljama Arbor Acres provenijence sa dve ogledne grupe, od kojih je I grupa imala početnu masu od 2,70 kg, a II grupa 2,15 kg. Nosilje pri ulazu u eksploataciju bile su u uzrastu 22 nedelje, ogled je trajao 43 nedelje, a proizvodni rezultati su praćeni i analizirani po periodima eksploatacije: prvi period od 23 do 44 nedelje, drugi period od 45 do 52 nedelje i treći period od 53 do 65 nedelje. Procenat nosivosti i proizvodnja jaja za nasad su statistički značajni kod I grupe u prvom periodu (p0,05). Na osnovu analitičkih kalkulacija utvrđena je veća dobit po jajetu za 6,30 posto kod nosilja I grupe, a pri projekciji proizvodnje jaja za nasad sa težim nosiljama pri ulasku u eksploataciju utvrđena je prelomna tačka rentabilnosti proizvodnje u 2,38 mesecu eksploatacije pri obimu proizvodnje od 68.132 jajeta za nasad.