The study was performed to investigate the effect of hydroalcoholic extract of different thyme species on performance, intestinal morphometry, nutrient digestibility and immune response of male broiler chickens. A total of 160 day-old Ross 308 broiler chicks were randomly allotted to five treatments including a control basal diet or diets supplemented with 0.1% of four thyme extracts (Thymus daenensis, T. kotschyanus, T. lancifolius, and T. transcaspicus) with four replicates of eight birds each. The experiment was lasted for 28 days. There were no significant effects of treatments on broilers performance during the first three weeks of age. At fourth weeks of age and throughout the experimental period, the chickens on T. daenensis extract showed the best weight gain among the treatments (P
Bu çalışma erkek broiler piliçlerde çeşitli kekik cinslerinin hidroalkolik ekstraktının performans, barsak morfometrisi, besin sindirilebilirliği ve bağışıklık yanıtı üzerine etkilerini araştırmak amacıyla yapılmıştır. Toplam 160 adet bir günlük Ross 308 broiler civciv her bir grupta 8 civciv ve dört tekrar olmak üzere rastgele olarak 5 gruba ayrılarak kontrol grubuna bazal diyet, diğerlerine ise %0.1 oranında farklı dört kekik (Thymus daenensis, T. kotschyanus, T. lancifolius,ve T. transcaspicus) ekstraktı verildi. Deney süresi 28 gün sürdü. İlk üç ay süresince broiler performansı üzerine denemelerin anlamlı bir etkisi olmadı. Dördüncü haftada ve deneysel süre boyunca T. daenensis verilen piliçler diğer denemeler arasında en iyi ağırlık kazanımını gösterirken (P
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