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Livestock-Based Farming Systems, Renewable Resources and the Environment |
Three hundred sixty Hi-sex Brown (24-36th week of age) were used to evaluate the effect of supplementating of different levels of crude rice bran oil on production on production and quality of eggs; blood parameters and serum lipids. Hens were allocated according to a completely randomized design into six treatments: control (basal diet, BS); BS plus 1.5% lard or rice bran at levels of 1, 1.5, 2 and 3% with 12 replicates. Dietary treatments had significantly affected on egg production, feed consumption (P<0.01), feed efficiency (kg feed/kg egg), as compared to the control (P<0.01). Adding rice bran oil to diets increased egg yolk color, egg shell and yolk rate. Dietary treatments did not affect the other blood parameters (P>0.05) and serum lipds (P>0.05), but HDL cholesterol tended to increase when 2.5% of rice bran oil suplemented in the diet.