مقایسه وزن بدن، فراسنجه‌های بیومتریکی بدن، فراسنجه‌های خونی و غلظت پروژسترون بره میش‌ها و شیشکهای قزل
Subject Areas : Camelم. ابراهیمی 1 , ب. فردوست 2 , غ. مقدم 3 , س.ع. رافت 4 , ع. حسین خانی 5 , ص. علیجانی 6 , ح. دقیق کیا 7 , ح. پایا 8
1 - Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
2 - Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
3 - Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
4 - Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
5 - Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
6 - Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
7 - Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
8 - Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
Keywords: وزن بدن, فراسنجه‌های خونی, پروژسترون, بره میش,
Abstract :
اگرچه بره میش‌های بسیاری از نژادها عملکرد تولید مثلی قابل قبولی دارند، بره میش‌های قزل نرخ باروری پایینی دارند، در حالیکه شیشکهای قزل نرخ باروری بالایی دارند. بنابراین، مقایسه بره میش‌ها و شیشک‌ها میتواند به ما در فهم این تفاوت کمک کند. در نتیجه، این مطالعه به منظور بررسی وزن بدن، فراسنجه‌های بیومتریکی بدن، فراسنجه‌های سرم، غلظت پروژسترون و همبستگی صفات بره میش‌ها و شیشکهای قزل طراحی شد. در طی فصل تولید مثلی، بره میش‌ها (تعداد 36، متوسط سن هفت ماه) و شیشکهای (تعداد 39، متوسط سن 18 ماه) قزل وزنکشی شدند، فراسنجه‌های بیومتریکی بدن اندازهگیری شدند، نمونه‌های خون جمعآوری شده و غلظت فراسنجه‌های سرم و پروژسترون اندازهگیری شدند. سپس، همگی داده‌ها بر اساس رویه GLM نرم افزار SAS مورد تجزیه و تحلیل قرار گرفتند. نتایج این پژوهش بالاتر بودن وزن نسبی بدن، همگی فراسنجه‌های بیومتریکی بدن (به غیر از طول سر) و غلظت پروژسترون در شیشکهای قزل در مقایسه با بره میش‌ها را نشان دادند (P<0.01). با این حال غلظت‌های سرمی اوره و گلوکز در شیشکهای قزل در مقایسه با بره میش‌ها پایین‌تر بود (P<0.05). همچنین نتایج همبستگی مثبت بین وزن نسبی بدن و سن با غلظت پروژسترون در شیشکهای قزل نشان داد (P<0.01). از سوی دیگر، نتایج همبستگی منفی بین غلظت‌های پروژسترون وزن نسبی بدن و سن با غلظت اوره شیشکهای قزل نشان دادند (P<0.05). نتایج کلی این پژوهش نشان دادکه بره میش‌های قزل وزن نسبی بدن، فراسنجه‌های بدنی و غلظت پروژسترون کمتر، اما غلظت‌های اوره و گلوکز خونی بیشتر در مقایسه با شیشکهای قزل داشتند.
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