In addition, if hens are fed with pan feeders, they should have a space of 10 cm/hen, and it will be necessary to observe how the feed is distributed or not and whether the birds eat evenly or they are grouping without reaching the feed. On the other hand, in production, the fertility and feathers must be monitored, by measuring the conditions of the feathers in the back, in order to take actions on management and feeding. For instance, if the hens have a percentage of feathers of score 4 and 5 greater than 5% at 55 weeks (Figure 3), managers will have to evaluate the management of the roosters, feeder space, and the balance of amino acids and fiber levels.
Note: Score 4 & 5 = Score 4 + Score 5. Score 4 represents hens with 4 inches or 10.1 cm of bare back, considering the length of denuded back from cranial to tail (caudal) direction. Score 5 represents hens with 5 inches or 12.7 cm of bare back.
c) Egg size