نوع مقاله : مقاله پژوهشی
نویسنده
استادیار، گروه علوم دامی، دانشکده کشاورزی، واحد ورامین- پیشوا، دانشگاه آزاد اسلامی، ورامین، ایران.
چکیده
به‌منظور بررسی اثرات فرآوردههای گیاه دارویی ترخون بر راندمان رشد، ویژگی‌های لاشه و پاسخهای ایمنی (سلولی و هومورال) در جوجههای گوشتی، تعداد 168 قطعه جوجه یکروزه نژاد رأس 308 در چهار تیمار شامل شش تکرار و هفت جوجه در هر تکرار استفاده شدند. تیمارها شامل 1- جیره پایه (شاهد)، 2- جیره پایه+ 500 میکرولیتر عصاره هیدروالکلی ترخون در در هر لیتر آب آشامیدنی، 3- جیره پایه+ یک درصد پودر ترخون به‌صورت سرک و 4- جیره پایه + یک درصد پودر ترخون به‌صورت سرک+ 500 میکرولیتر عصاره هیدروالکلی ترخون در هر لیتر آب آشامیدنی بودند. در دوره‌های آغازین، رشد، پایانی و کل دوره، جوجه‌هایی که فقط یک درصد پودر ترخون در جیره مصرف کردند راندمان رشد بهتری نسبت به سایر تیمارها داشتند، به‌طوری‌که با افزایش خوراک مصرفی در این جوجه ها، افزایش وزن و ضریب تبدیل خوراک نیز بهبود یافت (P≤0/05). هم‌چنین در این جوجه ها، وزن نسبی بورس فابرسیوس و لاشه، بیش‌تر از سایر جوجهها بود (P≤0/05). اختلاف معنی داری در پاسخ ایمنی سلولی (به‌واسطه ارزیابی تورم پرده پا در پاسخ به تزریق فیتوهماگلوتینین) و پاسخ ایمنی هومورال (از طریق ارزیابی تولید پادتن بر ضدویروس نیوکاسل و هم‌چنین تولید پادتن بر ضد گلبول قرمز گوسفندی تزریقی) بین تیمارهای آزمایشی مشاهده نشد. براساس نتایح حاصل، استفاده از یک درصد پودر ترخون در جیره جوجههای گوشتی به‌منظور بهبود راندمان رشد و بازده لاشه توصیه میشود.
کلیدواژه‌ها
عنوان مقاله [English]
Evaluate the Influence of extract and powder of tarragon on the growth performance of broiler chickens
نویسنده [English]
- Kazem Karimi
Department of animal science, College of Agriculture, Varamin-Pishva Branch, Islamic Azad University, Varamin, Iran,
چکیده [English]
In order to investigate the effects of the Tarragon byproducts on the growth performance, carcass traits, cellular and humoral immunoresponse of broilers, one-day- old one hundred sixty-eight Ross 308 chicks were randomly allocated in to four treatment groups in 24 cages (6 replicates per treatment) and 7 chicks per replicate. The treatments were included: 1) basal diet (control), 2) basal diet + 500 μl/lit Hydro alcoholic extract of tarragon in drinking water, 3) basal diet + 1% dietary tarragon powder and 4) basal diet + 1% dietary tarragon powder + 500 μl/lit of tarragon extract in drinking water. Results indicated that at the starter, grower, finisher and total periods of time, the birds that were recived 1% dietary tarragon powder had a better growth performance rather than other birds, so that, feed intake and weight gain were significantly increased (P ≤ 0.05) and feed conversion ratio was improved. In these birds, the relative weights of carcass and bursa of Fabresious was also greater than other birds (P ≤ 0.05). No significant differences were observed in the cellular immunity response (change in foot membrane thickness in response to Phytohemagglutinin injection) and humoral imiunity response (antibody response to Newcastle virus and antibody response to injected SRBC) due to treatments. Based on the results, the use of one percent tarragon powder in the diet of broilers is recommended to improve the growth efficiency and carcass yield.
کلیدواژه‌ها [English]
- Broiler
- Hydroalcoholic extract
- Newcastle disease
- Phytohemagglutinin
- SRBC
- Tarragon
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