other بهبود شاخص های تولیدمثلی میش های نژاد مغانی با استفاده از هورمون های GnRH و eCG در همزمان سازی فحلی در فصل غیر تولیدمثلی عمومى General پژوهشي Research <div> <table align="center" hspace="0" vspace="0"> <tbody> <tr> <td style="padding: 0in 12px; text-align: justify;" valign="top"><span style="font-size:11pt"><span style="line-height:17.0pt"><span style="direction:rtl"><span style="unicode-bidi:embed"><span style="font-family:Calibri,sans-serif"><b><span lang="FA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">مقدمه: </span></span></span></b><span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">در طول دوره همزمان&shy; سازی فحلی، تزریق گنادوتروپین &shy;هایی مانند </span></span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:black">eCG</span></span></span><span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black"> پس از قطع درمان با پروژسترون منجر به افزایش نرخ تخمک&shy; گذاری می&shy; شود. هم</span></span></span> <span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">چنین استفاده از هورمون </span></span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:black">GnRH</span></span></span><span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black"> همراه با </span></span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:black">eCG</span></span></span><span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black"> ممکن است نرخ تخمک&shy; گذاری و دوقلوزایی در میش را افزایش دهد. بنابراین هدف تحقیق حاضر بهبود عملکرد تولیدمثلی میش &shy;های نژاد مغانی با استفاده از هورمون&shy; های </span></span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:black">GnRH</span></span></span><span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black"> و </span></span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:black">eCG</span></span></span><span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black"> در همزمان&shy; سازی فحلی در فصل غیر تولیدمثلی بود.&nbsp; </span></span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:black"></span></span></span></span></span></span></span></span><br> <span style="font-size:11pt"><span style="line-height:17.0pt"><span style="direction:rtl"><span style="unicode-bidi:embed"><span style="font-family:Calibri,sans-serif"><b><span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">مواد و روش&shy; ها:</span></span></span></b> <span lang="FA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">در این پژوهش</span></span></span> <span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">تعداد</span></span></span> <span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">200 راس</span></span></span> <span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">میش مغانی با</span></span></span> <span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">میانگین</span></span></span> <span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">وزنی 70 کیلوگرم و حدود سنی 2-5</span></span></span> <span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">سال در قالب طرح کاملاً تصادفی به دو</span></span></span> <span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">گروه تقسیم شدند (100 میش/گروه). این آزمایش در فصل غیر تولیدمثلی و تحت شرایط نور طبیعی انجام شد. طبق</span></span></span> <span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">برنامه</span></span></span> <span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">همزمان&shy; سازی</span></span></span> <span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">فحلی، اسفنج &shy;گذاری به</span></span></span> <span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">مدت</span></span></span> <span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">14</span></span></span> <span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">روز</span></span></span> <span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">در همه گوسفندان انجام شد. بعد از خارج نمودن اسفنج&shy; ها، گروه اول (شاهد) و</span></span></span> <span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">گروه دوم (</span></span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:black">eCG/GnRH</span></span></span><span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">) به</span></span></span> <span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">ترتیب 400 واحد بین &rlm;المللی </span></span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:black">eCG</span></span></span><span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black"> و 400 واحد بین&rlm; المللی </span></span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:black">eCG</span></span></span><span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black"> همراه با 2/5 میلی &shy;لیتر </span></span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:black">GnRH</span></span></span><span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black"> به</span></span></span> <span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">صورت عضلانی دریافت کردند و سپس با قوچ &shy;های نژاد مغانی به</span></span></span> <span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">صورت طبیعی جفت</span></span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:black">&shy;</span></span></span><span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">گیری کردند. بعد از زایمان شاخص &shy;های تولیدمثلی در هر گروه محاسبه شدند. تعداد بره &shy;های متولد شده از هر میش و وزن تولد آن</span></span></span> <span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">ها نیز اندازه &shy;گیری شدند. داده&shy; های حاصل از </span></span></span><span lang="FA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">عملکرد تولیدمثلی توسط</span></span></span> <span lang="FA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">نرم</span></span></span> <span lang="FA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">افزار آماری </span></span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:black">SAS</span></span></span><span lang="FA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black"> و با استفاده </span></span></span><span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">از رویه </span></span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:black">GENMOD</span></span></span><span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black"> در قالب طرح کاملاً تصادفی تجزیه و تحلیل شدند و معنی &shy;داری داده</span></span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:black">&shy;</span></span></span><span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">ها براساس آزمون آماری کای اسکوئر (</span></span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:black">X²</span></span></span><span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">) مورد بررسی قرار گرفت. برای آنالیز داده&shy; های مربوط به وزن بدن بره &shy;ها از رویه </span></span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:black">GLM</span></span></span><span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black"> استفاده شد و </span></span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:black">p</span></span></span><span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black"> کوچک</span></span></span> <span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">تر از 0/05</span></span></span> <span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">به</span></span></span> <span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">عنوان</span></span></span> <span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">اختلاف</span></span></span> <span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">معنی &shy;دار</span></span></span> <span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">درنظر</span></span></span> <span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">گرفته</span></span></span> <span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">شد.</span></span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:black"></span></span></span></span></span></span></span></span><br> <span style="font-size:11pt"><span style="line-height:17.0pt"><span style="direction:rtl"><span style="unicode-bidi:embed"><span style="font-family:Calibri,sans-serif"><b><span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">نتایج:</span></span></span></b> <span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">نتایج نشان داد که بین دو تیمار آزمایشی اختلاف معنی &shy;داری در شاخص &shy;های نرخ فحلی، نرخ آبستنی و نرخ زایش وجود نداشت (0/05</span></span></span><span lang="AR-SA" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:black"><</span></span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:black">p</span></span></span><span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">). از نظر آماری گروه شاهد (72 درصد) نسبت به گروه&shy; تیماری (92 درصد) نرخ بره &shy;زایی پایین &shy;تری داشت (0/05></span></span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:black">p</span></span></span><span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">).</span></span></span> <span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">راندمان تولید بره در تیمار </span></span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:black">eCG/GnRH</span></span></span><span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black"> در مقایسه با تیمار </span></span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:black">eCG</span></span></span><span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black"> اختلاف معنی &shy;داری در سطح 0/05 نشان داد (به</span></span></span> <span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">ترتیب 124/3 درصد در مقابل 110/8 درصد). نرخ دوقلوزایی در گروه </span></span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:black">eCG/GnRH</span></span></span><span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black"> نسبت به گروه شاهد بالاتر بود (به</span></span></span> <span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">ترتیب 21/6 درصد در مقابل 10/6 درصد</span></span></span><span lang="FA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">؛</span></span></span><span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black"> 0/05<</span></span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:black">p</span></span></span><span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">). میانگین وزن تولد بره</span></span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:black">&shy;</span></span></span><span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">ها در تیمارهای آزمایشی تحت تاثیر تزریق هورمون &shy;ها قرار نگرفت (0/05<</span></span></span><span dir="LTR" style="font-size:10.0pt"><span new="" roman="" style="font-family:" times=""><span style="color:black">p</span></span></span><span lang="AR-SA" style="font-size:12.0pt"><span b="" baran="" style="font-family:"><span style="color:black">).</span></span></span></span></span></span></span></span><br> <span class="MsoPlaceholderText" style="color:gray"><b><span dir="RTL" lang="AR-SA" style="font-size:12.0pt"><span style="line-height:107%"><span b="" baran="" style="font-family:"><span style="color:black">بحث و نتیجه &shy;گیری: </span></span></span></span></b></span><span dir="RTL" lang="FA" style="font-size:12.0pt"><span style="line-height:107%"><span b="" baran="" style="font-family:"><span style="color:black">نتیجه &shy;گیری می&shy; شود که تزریق توأم </span></span></span></span><span style="font-size:10.0pt"><span style="line-height:107%"><span new="" roman="" style="font-family:" times=""><span style="color:black">GnRH</span></span></span></span><span dir="RTL" lang="FA" style="font-size:12.0pt"><span style="line-height:107%"><span b="" baran="" style="font-family:"><span style="color:black"> و </span></span></span></span><span style="font-size:10.0pt"><span style="line-height:107%"><span new="" roman="" style="font-family:" times=""><span style="color:black">eCG</span></span></span></span><span dir="RTL" lang="FA" style="font-size:12.0pt"><span style="line-height:107%"><span b="" baran="" style="font-family:"><span style="color:black"> در مقایسه با تزریق فقط </span></span></span></span><span style="font-size:10.0pt"><span style="line-height:107%"><span new="" roman="" style="font-family:" times=""><span style="color:black">eCG</span></span></span></span><span dir="RTL" lang="AR-SA" style="font-size:12.0pt"><span style="line-height:107%"><span b="" baran="" style="font-family:"><span style="color:black"> در</span></span></span></span> <span dir="RTL" lang="AR-SA" style="font-size:12.0pt"><span style="line-height:107%"><span b="" baran="" style="font-family:"><span style="color:black">فصل</span></span></span></span> <span dir="RTL" lang="AR-SA" style="font-size:12.0pt"><span style="line-height:107%"><span b="" baran="" style="font-family:"><span style="color:black">غیرتولیدمثلی</span></span></span></span> <span dir="RTL" lang="AR-SA" style="font-size:12.0pt"><span style="line-height:107%"><span b="" baran="" style="font-family:"><span style="color:black">در میش نژاد مغانی عملکرد تولیدمثل</span></span></span></span><span dir="RTL" lang="AR-SA" style="font-size:12.0pt"><span style="line-height:107%"><span b="" baran="" style="font-family:"> را بهبود داده و در</span></span></span> <span dir="RTL" lang="AR-SA" style="font-size:12.0pt"><span style="line-height:107%"><span b="" baran="" style="font-family:">شرایط</span></span></span> <span dir="RTL" lang="AR-SA" style="font-size:12.0pt"><span style="line-height:107%"><span b="" baran="" style="font-family:">پرورش</span></span></span> <span dir="RTL" lang="AR-SA" style="font-size:12.0pt"><span style="line-height:107%"><span b="" baran="" style="font-family:">مزرعه&shy; ای</span></span></span> <span dir="RTL" lang="AR-SA" style="font-size:12.0pt"><span style="line-height:107%"><span b="" baran="" style="font-family:">می &shy;تواند مقرون</span></span></span> <span dir="RTL" lang="AR-SA" style="font-size:12.0pt"><span style="line-height:107%"><span b="" baran="" style="font-family:">به</span></span></span> <span dir="RTL" lang="AR-SA" style="font-size:12.0pt"><span style="line-height:107%"><span b="" baran="" style="font-family:">صرفه</span></span></span> <span dir="RTL" lang="AR-SA" style="font-size:12.0pt"><span style="line-height:107%"><span b="" baran="" style="font-family:">و</span></span></span> <span dir="RTL" lang="AR-SA" style="font-size:12.0pt"><span style="line-height:107%"><span b="" baran="" style="font-family:">اقتصادی باشد.</span></span></span></td> </tr> </tbody> </table> </div> <div style="text-align: justify;"></div> عملکرد تولیدمثلی, میش مغانی, همزمان سازی فحلی eCG, گنادوتروپین 1 8 http://journalaer.com/browse.php?a_code=A-10-2-1&slc_lang=other&sid=1 Vahid Vahedi وحید واحدی vahediv@uma.ac.ir 1003194753284600113 1003194753284600113 Yes Gholamreza Mardaneh غلامرضا مردانه 1003194753284600114 1003194753284600114 No Azade Boustan آزاده بوستان 1003194753284600115 1003194753284600115 No