It is good management practice to take individual body weights of a sample of birds at day-old and then
again at 7 days of age. This will establish early flock uniformity and its development over time, and will also
provide an indication of the adequacy of brooding management practices. At day-old it is recommended
to individually weigh all the chicks in one box from each parent stock source flock to determine initial
flock uniformity. At 7 days of age individual weights should be taken by means of the individual weighing
procedures described above, or by using an electronic platform scale (Figure 57). Regular visual assessments
of flock uniformity should also be made by stock personnel.