Efficacy of Bactocell® and Toyocerin® as Probiotics on Growth Performance, Blood Parameters and Intestinal Morphometry of Turkey Poults
محورهای موضوعی : Camel
1 - Department of Animal Science, Faculty of Agriculture and Natural Resources, Tehran Science and Research Branch, Islamic Azad University, Tehran, Iran
کلید واژه: Turkey, Performance, Bactocell®, intestinal morphometry, Toyocerin®,
چکیده مقاله :
A feeding trial was conducted to investigate the efficacy of Pediococcus acidlactici (Bactocell®) or Baccillus cereus (Toyocerin®)-based probiotics on turkey’s performance, carcass yield, blood parameters and intestinal morphology. A total of 240 1- day-old male Nicholas turkey poults were allocated into three dietary groups with four replicates. A corn-soybean-based diet was used as a basal diet. The dietary groups were 1) control (basal diet), 2) basal diet plus Bactocell® (1×109 cfuof Pediococcus acidilactici/g of the diet) 3) basal diet plus Toyocerin® (1×109 cfuof Bacillus cereus/g of the diet). Poults assigned in a normal condition from 1 to 84 days of age. Birds raised on floored pen and in an environmentally controlled house. Birds given ad libitum access to water and diet. Poults weighted at every week by pen basis to determine average body weight. Feed intake per pen recorded at the same age and feed conversion ratio calculated for whole period. Eight birds per treatment randomly selected to measure the serum cholesterol, triglyceride, heterophil, lymphocyte levels and histomorphological measurements of small intestine on day 84. The result of this study shown that there was not a significant association between added probiotics to feed and weight growth, feed conversion ratio, cholesterol, triglyceride,high-density lipoprotein (HDL) andlow-density lipoprotein (LDL) levels (P>0.05). There was a significant result of decrease epithelium thickness, increase villus height and increase cell area of Goblet (P<0.05). Birds fed diet supplemented with probiotics also had lower (P<0.05) Coliforms number of the ileum than that of the control. It could be concluded that under the condition of the current study, the probiotic affected small intestinal morphology of turkey poults significantly, but inclusion of these probiotics at the recommended dose (1 g/kg in diet) has no adverse effect on blood parameters and performance of turkey poults. The key points of using probiotics are in maintaining gastrointestinal health and resistance to pathogens and prevent digestive disorders that may express.
آزمایشی برای بررسی اثر استفاده از پروبیوتیکهای باکتوسل (پدیوکوکوس اسیدیلاکتیکی) و تویوسرین (باسیلوس سرئوس) بر عملکرد، لاشه، فراسنجههای خونی و مورفولوژی روده جوجههای بوقلمون انجام شد. تعداد 240 قطعه جوجه بوقلمون نر یکروزه نژاد نیکولاس در سه تیمار جیرهای با چهار تکرار در هر تیمار، مورد استفاده قرار گرفتند. جیره پایه بر اساس ذرت-سویا بود. تیمارها عبارت بودند از: 1- گروه کنترل (جیره پایه)، 2- جیره پایه + باکتوسل (109cfu پدیوکوکوس اسیدیلاکتیکی به ازای هر گرم جیره) و 3- جیرهی پایه + باکتوسل (109cfu باسیلوس سرئوس به ازای هر گرم جیره). جوجه بوقلمونها در شرایط نرمال از روز اول تا 84 در پنهای جداگانه و روی بستر در شرایط محیطی کنترل شده پرورش یافتند. خوراک و آب به طور آزاد در اختیار جوجهها قرار داشت. وزنکشی هفتگی برای تعیین میانگین وزن جوجههای هر پن انجام شد. مصرف خوراک نیز به طور هفتگی اندازهگیری و ضریب تبدیل خوراک برای کل دوره محاسبه شد. در روز 84 پرورش، 8 جوجه از هر تیمار برای اندازهگیری فراسنجههای خونی کلسترول، تریگلیسیرید، هتروفیل، لنفوسیت و نیز بررسی ویژگیهای مورفولوژیکی روده کوچک به طور تصادفی انتخاب و کشتار شدند. نتایج این مطالعه نشان داد که استفاده از این دو پروبیوتیک تأثیر معنیداری بر وزن بدن، مصرف خوراک، ضریب تبدیل خوراک، کلسترول، تریگلیسرید، HDL و LDL نداشت (05/0P>). نتایج معنیداری در کاهش ضخامت اپیتلیوم، افزایش طول پُرزها، و افزایش تعداد سلولهای گابلت روده کوچک مشاهده شد (05/0P<). همچنین پرندگانی که از این دو پروبیوتیک استفاده کرده بودند، در محتویات ایلئومی خود دارای تعداد کلیفرمهای کمتری نسبت به گروه کنترل بودند (05/0P<). بنابراین، با توجه به نتایج این پژوهش میتوان نتیجه گرفت که استفاده از این پروبیوتیکها در دوز توصیه شده (109cfu به ازای هر کیلوگرم خوراک) فاقد اثر معنیدار بر فراسنجههای خونی و عملکرد جوجه بوقلمونها است. نکته کلیدی در استفاده از این پروبیوتیکها، اثر آنها در حفظ سلامتی دستگاه گوارش و مقاومت به پاتوژنها و نیز پیشگیری از اختلالات گوارشی است.
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