CGM (Corn Gluten Meal) Substitution in Feed Conversion, Productivity, and Egg Yolk Color in Laying Hens

Egg is a source of animal protein which is cheap and it is very easy to get for consumption. Hence, the quality of egg becomes one of the factors that must be considered in laying hen cultivation. One of the important factors is feeding. Feeding with CGM (Corn Gluten Meal) substitution to laying hens is conducted to know the influence of CGM to the number of eggs, the weight of eggs, feed conversion, and egg-yolk colour. This research was conducted in June-July 2022 in laying hen farming located in Pasuruan, East Java. This research is con-ducted by dividing 40 strain laying hens of Isa Brown into 4 treatment groups, so each group consists of 10 hens. The treatment used is by feeding them with 4 different CGM concentration, namely P0 (CGM 0%), P1 (CGM 5%), P2 (CGM 10%), and P3 (CGM 15%). The obtained data was analysed by using Analysis of Variance (ANOVA). The result of the research shows that CGM substitution does not influence to the number of eggs, but influence the weight of eggs, feed conversion, and egg-yolk colour. The average of the heaviest egg is obtained at treatment group given CGM 10% of feed composition, the average of the littlest feed conversion at group treatment given CGM 15%, and egg yolk colour of laying hens with CGM 15% get the biggest score 13 and the average is 12,33.