پاسخ انتخاب برای وزن بدن در بلدرچین ژاپنی (Coturnix coturnix japonica

Subject Areas : Camel

اس. هوسن ¹ (Deprtment of Animal Production, College of Agriculture, University of Duhok, Kurdistan, Iraq)
آ.م. عبد الرحمان ال-خدری ² (Deprtment of Animal Production, College of Agriculture, University of Duhok, Kurdistan, Iraq)
آ.م. حسن ³ (Deprtment of Animal Production, College of Agriculture, University of Duhok, Kurdistan, Iraq)

Received: 2014-10-13 Accepted : 2015-01-30 Published : 2016-06-01

Keywords: وزن بدن, پارامترهای ژنتیکی, بلدرچین ژاپنی, معادله پیش‌بینی شده, پاسخ انتخاب,

Abstract :

مطالعه حاضر به بررسی اثر انتخاب برای وزن بدن (BW) بر عملکرد تولیدی، BW پیش­بینی شده و بهبود ژنتیکی مرتبط با صفات در بلدرچین ژاپنی است. جمعیت پایه، والدین منتخب و فرزندان F1 مورد آزمون قرار گرفتند. پرورش در قفس و لانه صورت گرفت. از تعداد کل 240 پرنده در دو نسل متوالی، 27 نر و 54 ماده (به عنوان والدین منتخب) به کار گرفته شدند. وزن بدن از معادله رگرسیون چندگانه، آنالیز کوواریانس و مدل­های مرکب برآورد گردیده و پاسخ انتخاب، وراثت­پذیری تحقق یافته و همبستگی ژنتیکی برای BW، افزایش وزن (WG)، مصرف خوراک (FI) و ضریب تبدیل خوراک (FCR) محاسبه شدند. نتایج نشان داد که پاسخ انتخاب برای BW، WG، FI و FCR به ترتیب برابر با 48/11 گرم، 04/27 گرم، 37 گرم و 2/0- بود. وراثت­پذیری­های برآورد شده برای صفات فوق نیز به ترتیب برابر با 78/0، 67/0، 52/0 و 77/0 بود. معادله پیش­بینی شده (معادله DUHOK) برای BW به عنوان متغیر وابسته به وزن بدن اولیه و نسبت جنس نیز به دست آورده شد. پاسخ نهایی برای وزن بدن به صورت 84/5 درصد BW زنده تعیین گردید.

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