The influence of variety and enzyme supplementation on the nutritional value of barley for chicks

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Abstract
Six experiments were conducted to study the effect of variety and enzyme supplementation on the nutritional value of barleys grown in the same location. Significant differences in chick weights at 4 weeks were observed in 3 of the experiments where the barley varieties were compared. The differences could not be correlated with differences in chemical composition of the varieties tested, since these were insignificant. Enzyme supplementation significantly improved growth in 2 out of 3 experiments, and when all 3 experiments were analysed together. Enzyme supplementation seemed to have a more marked effect on body weight gains than the variety used. Differences in growth response to different varieties and to enzyme supplementation were closely related to differences in food consumption.