Abstract
Nutritive value of two strains of Canadian utility wheat, Glenlea and Pitic 62, was compared with those of Canadian No. 1 feed barley and of American yellow corn by feeding these cereals to laying hens.
Crude protein in Canadian utility wheats, i. e., Glenlea and Pitic 62, was 15, 27 and 14.94%, respectivly, which was higher than that in Canadian No. 1 feed barley and yellow corn. Total digestible nutrients in Pitic 62 wheat and Canadian No. 1 feed barley was almost identical, being about 75%, but that of Glendea wheat was higher than those of them and almost equal to that of yellow corn, being 79.6%.
No significant difference in egg production, egg weight, feed intake and feed conversion (feed/egg) was observed among the hene fed one of four cereals on iso-caloric and iso-nitrogenous basis.
Yolk color of the eggs laid by the hens fed wheats and barley was between 5-6 by Roche color fan, which was significantly lower than 8 of the egg yolk laid by the hens fed yellow corn.
