| Abstract | Two broiler chicken experiments were conducted to study the effects of canola hulls on the growth, feed efficiency, and protein digestibility and metabolizable energy of the diet. Inclusion of canola hills at a 5% level of the diet and canola hull methanol extract up to 0.63% of the diet did not depress the weight gains of the birds as compared to those fed the control diet over a 3-week period. Inclusion of canola or soybean hulls in the diets at 10 or 20% levels, respectively, showed that the canola hills were not inferior to soybean hulls in terms of their effects on growth, deed efficiency, protein digestibility and metabolizable energy in broiler chickens. The tannin content of the canola hulls ranged from 0.11 to 0.15% and soybean hills contained no measurable tannins. The results suggest that canola hull tannins have no deleterious effect on the nutritive value of the meal. |
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