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Livestock-Based Farming Systems, Renewable Resources and the Environment |
Four hundred eighty Hi-sex Brown (22-36th week of age) were used to evaluate the effect of supplementating of garlic powder (Allium Sativum), Tra fish oil, rice bran oil or combination with garlic 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% of garlic or Tra fish oil or rice bran oil or/and with garlic with 20 replicates. Dietary treatments had significantly affected on egg production (P<0.01), egg weight (P<0.01) and feed consumption (P<0.01) as compared to the control, while feed efficiency (kg feed/kg egg) was similar (P=0.01). Adding 1% of garlic or Tra fish oil to diets increased egg yolk color, egg shell and yolk rate. Dietary treatments increased blood neutraphil (P=0.02), but did not affect the other blood parameters (P>0.05) as well as serum lipds (P>0.05).