Kemzyme and laying hen performance

An experiment was conducted using 120 brown Shaver laying hens to determine if an enzyme preparation "Kemzyme" would improve laying hen performance. Kemzyme was added at 0, 0.05 and 0.1% levels to a basal layer diet composed of corn, soybean meal, wheat bran, concentrate and limestone. The experimental diets were fed at a rate of 110 g/hen/day during five 28-day periods. Addition of Kemzyme at 0.05% level improved egg number and egg mass without affecting egg weight. The higher level of Kemzyme [0.1%] did not prove to be of additional benefit in supporting egg production. No alteration was recorded in egg weight, egg height, shell thickness, yolk weight, albumen weight and shell ash% by either dietary levels of Kemzyme supplementation