The Effect of Soybean Hulls Substitution Levels to Corn in The Ration on Energy and Protein Digestibility and on Sheep Performance
An experiment was conducted to investigate the effect of soybean hulls levels substitution in to corn as ration in twenty seven rams. The animal had a mean of live weight of 12.86 ± 1.94 kg. Levels of substitution were 0, 50, and 100% or 0, 25, and 50% ration dry matter basis and rations were iso-nitrogeneous. Analysis of variance were conducted for completely randomized design and polynomial orthogonal test were applied for the statistical analysis. Inclusion of soybean hulls in 50% ration dry matter had no effect on daily gain (99.71 ± 22.97 g), and digestible crude protein (62.43 ± 6.56 %). However, dry matter consumption tended to increase linearly and as soybean hulls level increase in the ration (P<0.01). The digestible energy significantly decrease linearly (P<0.01), whereas intake of the energy had same was 1.27 ± 0.33, 1.44 ± 0.17, and 1.23 ± 0.19 Mcal/day for ration containing 0, 25, 50% of soybean hulls, respectively. It was concluded that the soybean hulls may be substituted for corn. (Animal Production 2(2): 98-103 (2000)
Key words : soybean hulls, corn, digestibility, daily gain.
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