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مجید جعفری رضا ولی زاده عباسعلی ناصریان

چکیده

اين آزمايش به منظور تعيين بهترين سن از شيرگيري بره براي افزايش بازده توليدي و اقتصادي مي شها و بره هاي بلوچي انجام شد. تعداد 30 راس
47 كيلوگرم و 30 راس بره آنها ( 15 راس نر و 15 راس ماده ) با ميانگين وزن ± 0/ ميش بلوچي تك قلوزا و شكم دوم زايش با ميانگين وزن 5
8 و 12 هفتگي بعد ، 4/5 كيلوگرم به طور تصادفي به 3 گروه 10 راسي شامل 5 راس بره نر و 5 راس بره ماده تقسيم شدند. بره ها در سه سن 4 ± 0/05
از زايش به روش ناگهاني از شير گرفته و مي شها نيز خشك شدند. ميزان افزايش وزن روزانه، وزن، ماده خشك مصرفي روزانه، فراسنجه هاي خوني
بره ها در هفته دوازدهم بعد زايش، وزن و ماده خشك مصرفي روزانه ميش ها در زمان از شيرگيري و نسبت اقتصاد ي سود به هزينه در هر تيمار با
در قالب طرح كاملاً تصادفي بررسي شد. بر اساس نتايج به دست آمده، زود از شيرگيري بره ها در سن 4 هفتگي SAS نرم افزار GLM استفاده از رويه
موجب بهبود معن يدار در افزايش وزن روزانه، وزن، مقدار ماده خشك مصرفي روزانه در مي شها و بره ها و كاهش مصرف شير توسط بر ه ها شد . سطح
سرم خون بره هاي از شيرگرفته شده در 4 هفتگي در مقايسه با دو گروه ديگر بالاتر بود. نسبت اقتصادي سود به هزينه IGF- و هورمون 1 ALP آنزيم
نيز نشان داد از شيرگيري در 4 هفتگي مي تواند موجب افزايش معني دار سود دامدار در مقايسه با دو روش ديگر شود.

جزئیات مقاله

کلمات کلیدی

افزايش وزن روزانه, سن از شيرگيري, فراسنجه هاي خوني, نسبت سود به هزينه

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ارجاع به مقاله
جعفریم., ولی زادهر., & ناصریانع. (2019). اثر سن از شيرگيري بره بر عملكرد توليدي و اقتصادي ميش و بره بلوچي. پژوهشهای علوم دامی ایران, 10(4), 435-447. https://doi.org/10.22067/ijasr.v10i4.64178
نوع مقاله
علمی پژوهشی - تغذیه نشخوارکنندگان

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