Abstract:
This experiment carried out as a completely randomized
design with six treatments and 3 replicates pens of 100 birds each (total
of 1800 birds). Treatments were consisted of a common corn-soybean meal
based starter and grower diets supplemented by 0, 0.125, 0.25, 0.5, 1
or 2% garlic meal. At 1-21 days of age, daily feed intake per chicks influences
by dietary garlic meal level so that the birds fed diets with 0.125 and
0.25% garlic meal had a significantly higher daily feed intake (p<0.05)
than birds fed 0.5% dietary garlic meal. At 22-42 days of age and the
whole experimental period (1-42 days of age), garlic meal level didn`t
affect daily feed intake. No significant difference recorded for daily
weight gain of experimentally birds at 1-21 days of age, But at 22-42
days of age and the whole experimentally period (1-42 days of age) the
birds fed the control diet (free of garlic meal) and the diet containing
the highest garlic meal dosage (2%) had a significantly lower daily weight
gain in compare to other birds (p<0.05). At 1-21 days of age the birds
fed diet supplemented with 0.5% garlic meal had a lower feed conversion
ratio than the control birds (p<0.05) but at 22-42 days of age and
the whole experimentally period (1-42 days of age) birds fed the control
diet and the diet whit 2% garlic meal supplement showed a higher feed
conversion ratios in compare with birds fed diets containing 0.125, 0.5
or 1% garlic meal. No significant differences were detected in carcass
percentage and interior organs between birds fed experimental diets. The
weight gain reduction in birds fed 2% dietary garlic meal means that herbal
additives have their limitations too and needs more investigation.
F. Javandel, B. Navidshad, J. Seifdavati, G.H. Pourrahimi and S. Baniyaghoub, 2008. The Favorite Dosage of Garlic Meal as a Feed Additive in Broiler Chickens Ratios. Pakistan Journal of Biological Sciences, 11: 1746-1749.
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