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Asian-Australas J Anim Sci > Volume 1(3); 1988 > Article
Animal Products
Asian-Australasian Journal of Animal Sciences 1988;1(3): 173-178.
DOI: https://doi.org/10.5713/ajas.1988.173    Published online September 1, 1988.
The utilization of full fat soybean for egg production and egg quality in the laying hens
I. K. Han, Y. J. Choi, K. S. Chu, H. S. Park
Abstract
To study the effects of utilizing extruded full fat soybean (FFS) in layer diets, 300 White Leghorn pullets were put in trial divided into 5 treatments; control (commercial soybean meal as protein source), FFS 50% (replacing 50% of soybean meal with FFS), FFS 100% (replacing all amount of soybean meal with FFS), soybean oil and tallow added treatment. Each treatment consisted of 5 replicates of 12 birds. Egg production and feed efficiency from hens fed control diet were significantly lower than from hens fed the other diets. Significant differences in egg production and feed efficiency were found between the control and the other treatments. Cholesterol concentration of serum and egg yolk were not affected by any dietary treatment. Feeding extruded full fat soybean did not cause pancreatic hypertrophy nor change in mortality. There was an indication that linoleic acid (C18:2), linolenic acid (C18:3) and iodine contents increased in the thigh and egg yolk lipid of the groups fed FFS or soybean soybean can serve as effective protein source for layer diets if economically justified.
Keywords: Full Fat Soybean; Egg Production; Egg Quality; Soybean Meal; Tallow


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