The second laying cycle of the flock should end at 100 to 105 weeks of age. The success of a molt depends on accurate body weight sampling. The premolt weight of the hens is one of the most important pieces of information in the entire program. Do not cut corners in sampling the flock for body weight. One week before withdrawing feed, weigh all the birds in a cage at several locations throughout the house.
Select sample cages from all decks, rows, and areas in the house.
Mark these cages so that you can weigh the same birds for subsequent body weight samples. The amount of weight loss necessary for complete regression of the reproductive tract depends on the premolt weight of the hens. Table 1 indicates target weight loss for various premolt weight ranges. Many factors affect the method for achieving these goals. Read the fasting and weight-loss section of this guide closely.