Document Type : Research Paper
Authors
1 Department of Animal Science, Higher Educational Complex of Saravan. P.O. Box: 99516-34145, Saravan, Sistan and Baluchestan, Iran
2 epartment of Animal Science, Higher Educational Complex of Saravan. P.O. Box: 99516-34145, Saravan, Sistan and Baluchestan, Iran
Abstract
Effect of different levels of calcium, hydroalcoholic extracts Withania coagulans, and flaxseed oil on performance, mineral retention and bone morphology using with four thousand and eighty male Ross 308 broiler chicks in a 2×3×2 factorial experiment with two calcium levels (Calcium at the recommended level and calcium 30% less than the recommended level), extract Withania coagulans (Zero, 100 and 200 mg / kg in diet) ) and flaxseed oil (0% and 2% diet) in a completely randomized design with four replications and 10 birds per treatment were evaluated for 24 days. Adding 100 mg/kg of extract Withania coagulans to the diet increased feed intake and weight gain. Mineralization of bone growth plate increased in birds fed the extract Withania coagulans supplement (P <0.05). Supplement flax oil in diet did not show a positive effect on performance and bone parameters. Physical properties and mineral retention of calcium and phosphorus were not affected by the supplements. However, the amount of bone ash was affected by the interactions of flaxseed oil and extract, and the amount of ash in chickens fed diets without extract and flaxseed oil decreased. At 24 days of age, blood phosphorus levels in chickens fed a diet containing calcium and 200 mg of extract Withania coagulans increased (P <0.05). Based on the results of this study, adding 100 and 200 ml/kg hydroalcoholic extract of Withania coagulans to the diet of calcium deficient broilers improves performance and some bone parameters.
Keywords
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