USING CORN DISTILLER’S GRAIN AND RICE BRAN IN THE NUTRITION OF LAYING HENS AND ITS ECONOMIC IMPACT
2003, 4 (2) p. 145-152
Layers feeding are a technological factor that could increase economic efficiency in egg production if it is scientifically managed. The increasing price of raw materials used for producing diet imposes as nutritionists to look for new cheaper feedstuff able to replace the traditional and more expensive ingredients like soybean meal. This study aimed to set up new diet formulae for layers feeding. These new formulae are replacing soybean meal with corn distiller’s grain and rice bran. The new formulae assure the same protein and calories content. The V1 formula contents 30 % corn distiller’s grain and V2 contains 20 % rice bran. The effects of these formulae on the technological parameters and economic efficiency in egg production have been watched in micro test using a sample of 216 layers belonging to Roso 2000 hybrid line. The main parameters taken into account have been the following ones: average egg production, egg laying capacity, egg weight, yolk weight, white weight, shell weight, feed consumption, food conversion, cost and income/layer, profit/layer and profit/egg. The results obtained in micro test by the two experimental groups differently fed with V1 and respectively V 2 have been compared to the ones recorded by M group, fed with the classical diet based on 23 % soybean meal. We have noticed that the layers fed with rations based on corn distiller’s grain and rice bran have registered high quantitative and qualitative performances in egg production, leading to substantial savings related to production costs and to a higher profit per layer and egg.