نوع مقاله : مقاله پژوهشی
نویسندگان
1 استادیار گروه علوم دامی، دانشکده ی کشاورزی، دانشگاه شهرکرد، شهرکرد - ایران.
2 استاد، گروه علوم دامی، دانشکده ی کشاورزی، دانشگاه شهرکرد، شهرکرد - ایران.
چکیده
در پژوهش حاضر، اثر سطوح مختلف پودر برگ گیاه دارویی گزنه بر عملکرد رشد، مورفولوژی روده کوچک و شاخص‌های در پژوهش حاضر، اثر سطوح مختلف پودر برگ گیاه دارویی گزنه بر عملکرد رشد، مورفولوژی روده کوچک و شاخص‌های مرتبط با آسیت در جوجههای گوشتی پرورش یافته در شهرکرد بررسی شد. تعداد 240 قطعه جوجه خروس گوشتی یک روزه سویه تجاری راس 308 در قالب طرح کاملاً تصادفی با 4 تیمار، 4 تکرار و 15 قطعه جوجه در هر تکرار در یک دوره آزمایشی به مدت 42 روز مورد استفاده قرار گرفتند. تیمارهای آزمایشی شامل گروه شاهد (فاقد پودر برگ گزنه) همراه با سه سطح 5/0، 1 و 5/1 درصد پودر برگ گزنه بودند. نتایج این آزمایش نشان داد که افزودن پودر برگ گزنه به جیره سبب بهبود افزایش وزن بدن و ضریب تبدیل غذایی (05/0P<) شد. استفاده از پودر برگ گزنه در جیره موجب افزایش ارتفاع و عرض پرزها و افزایش سطح جذب آنها در قسمت‌های مختلف روده کوچک (دوازدهه، ژژنوم و ایلئوم) نسبت به گروه شاهد (05/0P<) گردید. همچنین تغذیه با پودر برگ گزنه در سطوح 1 و 5/1 درصد از هیپرتروفی بطن راست قلب جلوگیری نمود و افزایش بیان ژن‌های سوپراکسید دیسموتاز 1 و کاتالاز در بافت کبد جوجههای گوشتی را به همراه داشت. به طور کلی، نتایج این مطالعه نشان دادند که استفاده از 1 و 5/1 درصد پودر برگ گیاه دارویی گزنه می‌تواند در جلوگیری از سندرم فشار خون ریوی بالا در جوجههای گوشتی پرورش یافته در ارتفاعات سودمند باشد.
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