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Table 1 Traits recorded in the different housing systems

From: Efficiency of genomic selection in an established commercial layer breeding program

 

Trait unit

Single cage

Group cage

Practical environment

Laying performance 1

%

X

X

X

Laying performance 2

%

X

X

X

Laying performance 3

%

X

X

X

Laying performance 4

%

X

 

X

Egg weight

g

X

X

X

Feed consumption

g

X

  

Egg shell strength

N

X

X

X

Hatchability

%

X*

  

Mortality

1 or 0

X

X

X

Feathering quality

Scale 1 – 9

 

X

 
  1. *only in C and D.
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Genetics Selection Evolution

ISSN: 1297-9686