نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجو کارشناسی ارشد، گروه علوم دامی، دانشکده علوم و مهندسی کشاورزی، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، کرج - ایران

2 استادیار گروه علوم دامی، دانشکده علوم و مهندسی کشاورزی، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، کرج - ایران

چکیده

هدف تحقیق حاضر بررسی تأثیر سطوح مختلف اسانس رزماری (صفر، 10، 5/12، 6/16، 25 و50 میلی‌گرم در لیتر) در رقیق‌کننده منی، بر کمیت و کیفیت اسپرم خروس، بعد از فرایند انجماد- یخ‌گشایی بود. از 10 قطعه خروس سویه تجاری راس در این مطالعه استفاده شد. نمونه‌های منی هفته‌ای دو بار جمع‌آوری و پس از افزودن مایع رقیق کننده بر پایه لستین به آنها در دمای پنج درجه سانتی‌گراد نگهداری شدند. رقیق کننده حاوی غلظت‌های 10 و 5/12 میلی‌گرم در لیتر اسانس رزماری، جنبایی کل و رقیق کننده حاوی غلظت‌های 10 ، 5/12 و 6/16 میلی‌گرم در لیتر اسانس رزماری، حرکت پیشرونده اسپرم‌ و نیز زنده‌مانی آنها قبل از انجماد را بهبود بخشید(05/0 p≤). کمترین و بیشترین تحرک اسپرم‌ها به ترتیب در رقیق کننده بدون رزماری و رقیق کننده حاوی 10 میلی‌گرم در لیتر از اسانس رزماری مشاهده شد(05/0 p≤). یکپارچگی غشاء سلولی اسپرم‌‌ها در رقیق کننده حاوی 10 میلی‌گرم در لیتر اسانس رزماری نسبت به سایر غلظت‌ها ( به جز غلظت‌ 5/12 میلی‌گرم در لیتر) افزایش یافت (05/0 p≤). آپوپتوز اسپرم ها در رقیق کننده حاوی 10، 5/12 و 6/16 میلی‌گرم در لیتر اسانس رزماری، کاهش یافت (05/0 p≤). بر اساس نتایج این تحقیق، اسانس رزماری در سطوح 10 و 5/12میلی‌گرم در لیتر در مایع رقیق‌کننده، کیفیت اسپرم خروس را پس از یخ‌گشایی بهبود می بخشد.

کلیدواژه‌ها

عنوان مقاله [English]

Improving sperm cryopreservation of rooster by using rosemary alcoholic essential oil

نویسندگان [English]

  • Hanie Shafigh 1
  • Malek Shakeri 2
  • Saeed Zeinoaldini 2
  • Hamid Kohram 2
  • Mehdi Zhandi 2
  • Morteza Moghbeli 2

1 M.Sc. Student, Department of Animal Science, Faculty of Agricultural Science and Engineering, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran

2 Assistant Professor, Department of Animal Science, Faculty of Agricultural Science and Engineering, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran

چکیده [English]

The aim of the present research was to study the effect of different concentrations of rosemary (Rosmarinus officinalis L.) extract, (0, 10, 12.5, 16.6, 25 and 50) mg/L added to semen extender, on sperm qualitative and quantitative parameters after freezing-thawing process of rooster sperm. 10 Ross strain rooster were used. Semen samples were collected, 2 times a week. After adding the samples of semen based on the lecithin extender, they were placed and preserved at 5 ° C. The treatments of 10 and 12.5 mg/L of Rosemary significantly improved the mobility, in addition, treatments of 10, 12.5 and 16.6 mg/L improved progressive motility and viability before freezing (p≤ 0.05). The lowest and highest motility rates were respectively found in treatments of 0 and 10 mg/L of essential oil of rosemary (p≤ 0.05). Functional integrity of the sperm plasma membrane increased with treatment of 10 mg/L of essential oil of rosemary in comparison to other groups, except 12.5 mg/L. Also treatments of 10, 12.5 and 16.6 mg/L significantly decreased the apoptosis. According to these results, it seems that adding the levels of 10 and 12.5 mg/L rosemary extract’ in semen, based on lecithin extender can improve rooster’s sperm quality after thawing.

کلیدواژه‌ها [English]

  • Antioxidant
  • freezing-thawing
  • Rooster Sperm
  • Rosemary essential oil
  • semen extender
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