Evaluation of Single Cell Protein as a Non-Conventional Feedstuff in Broilers Feeding
محورهای موضوعی : Camelم.ر. پورعلمی 1 , س. سیفی 2 , ع.ر. عبدالهی کاکرودی 3 , ر. خوشبخت 4
1 - Department of Animal Science, Chalous Branch, Islamic Azad University, Chalous, Iran
2 - Department of Clinical Science, Faculty of Veterinary Medicine, Amol University of Special Modern Technologies, Amol, Iran
3 - Department of Animal Science, Chalous Branch, Islamic Azad University, Chalous, Iran
4 - Department of Clinical Science, Faculty of Veterinary Medicine, Amol University of Special Modern Technologies, Amol, Iran
کلید واژه: Performance, Broiler, gut microflora, single cell protein,
چکیده مقاله :
Single cell protein (SCP) is the definition for dried cells originated from single-celled organisms intended to be used as a protein source in human foods or animal feeds. An experiment has been conducted to evaluate the various levels of single cell protein on fecal microflora and productive traits of broiler chickens. A total of 192 day-old Ross 308 male chicks were randomly divided into 4 treatments. Each treatment consists of 48 birds and 4 replicates of 12 birds each. From day one, birds were fed either a corn-soybean meal basal diet with different levels of SCP (0, 5, 10 and 15 percent of as fed basis diet). Four birds from each treatment were randomly selected for slaughter and microbial study at day 47. Total counts of aerobic bacteria, Lactobacillus and Coliforms in the gut were not significantly affected by dietary treatments. The SCP at the levels of 10 and 15% caused to severe mortality. Also, SCP had adverse impacts on body weight gain, feed intake and feed efficiency. In conclusion, although SCP reduced feed cost, but it had some adverse effects on birds’ performance.
پروتئین تک یاخته‌ای تعریفی برای سلول‌های خشک شده‌ای است که از ارگانیسم‌های تک سلولی تشکیل شده‌اند و به عنوان منبع پروتئینی در غذاهای انسان یا خوراک حیوانات مورد استفاده قرار می‌گیرند. آزمایشی برای ارزیابی اثرات سطوح مختلف پروتئین تک یاخته‌ای بر روی میکروفلور مدفوع و صفات تولیدی جوجه‌های گوشتی انجام شد. در مجموع 192 جوجه یکروزه نر نژاد راس 308، به صورت تصادفی به 4 تیمار تقسیم شدند. هر تیمار شامل 48 پرنده و 4 تکرار 12 قطعه‌ای بود. از روز اول پرورش، جوجه‌ها با یک جیره غذایی بر پایه ذرت و سویا به همراه سطوح مختلف پروتئین تک یاخته‌ای (0، 5، 10 و 15 درصد جیره) تغذیه شدند. در روز 47 دوره پرورش، چهار پرنده از هر تیمار به صورت تصادفی برای کشتار و مطالعه میکروبی انتخاب شدند. تعداد کل باکتری‌های هوازی، لاکتوباسیل‌ها و کولی فرم‌های روده در تیمارهای مختلف، تفاوت معنی‌داری نداشت. پروتئین تک یاخته‌ای در سطوح 10 و 15 درصد باعث تلفات بالا شد. همچنین استفاده از پروتئین تک یاخته‌ای، تأثیرات نامطلوبی بر وزن‌گیری، مصرف غذا و بازده خوراک داشت. در نتیجه، اگر چه استفاده از پروتئین تک یاخته‌ای باعث کاهش قیمت جیره شد، اما تأثیرات نامطلوبی بر عملکرد پرندگان داشت.
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