effect of lemon balm (melissa officinalis) aqueous extract on immune response and performance of broilers

نویسندگان

فائزه عبدی نژاد

دانش آموختۀ کارشناسی ارشد، گروه علوم دامی، دانشکدۀ علوم کشاورزی، دانشگاه گیلان مهرداد محمدی

دانشیار گروه علوم دامی، دانشکدۀ علوم کشاورزی، دانشگاه گیلان

چکیده

effect of adding melissa officinalis aqueous extract was studied on immune response and performance in 200 ross 308 broiler chicks in a completely randomized design with five treatments and four replicates and 10 observations per replicate. the amounts of 0 (control), 0.5, 1, 1.5 and 2 ml/l lemon balm extract were added in drinking water for 42 days. humoral immunity was evaluated by injection of 0.1 ml sheep red blood cell (srbc) 25 percent on days eight and 22 of age and measurement of serum antibody levels produced in response to srbc on days 21, 28, 35 and 42. cellular immunity was assessed by injection of phytohemagglutinin intradermally on day 16. the consumption of lemon balm extract had no effect on daily feed intake and daily body weight gain (p>0.05). the birds that received 1.5 and 2 ml lemon balm extract in drinking water had lower feed conversion ratio in grower and whole period (p

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عنوان ژورنال:
تولیدات دامی

جلد ۱۷، شماره ۲، صفحات ۲۸۱-۲۹۰

کلمات کلیدی
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