مقایسه وزن بدن، فراسنجه‌های بیومتریکی بدن، فراسنجه‌های خونی و غلظت پروژسترون بره میش‌ها و شیشک‌های قزل

Subject Areas : Camel

م. ابراهیمی ¹ (Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran)
ب. فردوست ² (Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran)
غ. مقدم ³ (Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran)
س.ع. رافت ⁴ (Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran)
ع. حسین خانی ⁵ (Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran)
ص. علیجانی ⁶ (Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran)
ح. دقیق کیا ⁷ (Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran)
ح. پایا ⁸ (Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran)

Received: 2019-03-18 Accepted : 2019-06-15 Published : 2020-09-01

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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