S.H. Ebrahimi
Department of Animal Science, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran
[ 1 ] - Rumen Microbial Community of Saanen Goats Adapted to a High-Fiber Diet in the Northeast of Iran
Swiss Saanen goat is a widespread breed frequently found in commercial herds across the world. The present study aimed to identify the rumen microbial community of exotic Saanen goats adapted to a fibrous diet using barcoded pyrosequencing. Rumen content samples were collected from the four animals via a stomach tube after the morning graze and freeze-dried for DNA extraction. Bacterial and arc...
[ 2 ] - تأثیر پیش تصفیه قلیایی بر بهبود تخریب‌پذیری زیستی مواد آلی پسماندهای جامد شهری و تولید بیوگاز در هضم بی هوازی
Background and Objective: Solid waste management has always been one of the major challenges of large cities. Conversion of waste to energy in the form of biogas is known to be an appropriate solution. The aim of this study was to investigate the effect of total solids (TS) content and alkaline pretreatment on biogas production from municipal solid waste (MSW). Materials and Methods: Experim...
[ 3 ] - Prospective Effects of Regrouping, Number of Animals in Each Group and Concentrate Specificity on Profitability of Lactating Dairy Cows
Profitability of different grouping criteria was simulated in a dairy farm with 153 lactating cows that were divided into three groups of high (79), medium (40) and low (34) cows based on the milk records. Animals were reassigned to the new groups based on the following criteria using a decision support tool and the same three groups scenario: fat corrected milk 4%, days in milk (DIM), dairy me...
[ 4 ] - بررسی عملکرد گوسفند افشاری با تاکید بر خصوصیات رشد و افزایش وزن بره‌های نر: فراتحلیل
هدف از انجام این فراتحلیل تعیین حدود قابل حصول رشد و اضافه وزن بره‌های نر افشاری در شرایط پروار بود. تعداد 37 میانگین مربوط به پارامترهای رشد بره‌های نر افشاری مندرج در 16 مقاله علمی معتبر منتشرشده در فاصله زمانی سال‌های 1363 تا 1397برای انجام این مطالعه استفاده شدند. متوسط اضافه وزن روزانه در مطالعات مختلف بین 7/67 گرم تا 479 گرم (میانگین 24/238 و انحراف معیار 39/96گرم) متغیر بود. ضریب تبدیل م...
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