تاثیر سطوح مختلف عصاره مالت و سین بیوتیک برعملکرد، فراسنجه های خون و خصوصیات لاشه جوجه های گوشتی

نوع مقاله : مقاله پژوهشی

نویسندگان

گروه تغذیه دام و طیور، دانشکده علوم دامی، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، گرگان، ایران

10.22034/aej.2022.359610.2872

چکیده

افزودن مواد مختلف از جمله پروبیوتیک‎ ها و پری بیوتیک ‎ها و سین بیوتیک ها و گیاهان دارویی و عصاره آنها بعنوان جایگزین احتمالی افزودنی های محرک رشد ضد میکروبی، اثرات مثبتی بر میزبان دارند. این تحقیق با هدف بررسی تاثیر سطوح مختلف عصاره مالت جو و سین بیوتیک بر عملکرد، خصوصیات لاشه و فراسنجه های خونی جوجه های گوشتی نژاد راس 308 انجام شد. آزمایش در قالب یک طرح کاملا تصادفی با 5 تیمار، 5 تکرار و تعداد 10 قطعه جوجه در هر واحد آزمایشی جمعا به تعداد 250 قطعه جوجه یک روزه انجام گرفت. تیمارهای آزمایشی شامل شاهد، عصاره مالت جو 0/1 درصد، عصاره مالت جو 0/2 درصد، عصاره ‌مالت جو 0/3 درصد و سین بیوتیک محلول در آب به مدت 42 روز بودند. خوراک مصرفی، افزایش وزن و ضریب تبدیل غذایی در دوره آغازین، رشد، پایانی و در کل دوره، ثبت گردید. به منظور تعیین خصوصیات لاشه و سنجش فراسنجه های خونی در 42 روزگی تعداد دو قطعه جوجه نر از هر واحد آزمایشی انتخاب و پس ازوزن کشی، کشتار شدند. نتایج نشان داد افزودن عصاره مالت جو در سطوح 0/1، 0/2، 0/3 درصد و سین بیوتیک به تنهایی بر خوراک مصرفی، افزایش وزن و ضریب تبدیل غذایی جوجه های گوشتی نسبت به شاهد معنی دار نبود. هم چنین افزودن 0/3 درصد عصاره مالت جو در آب آشامیدنی، سبب افزایش معنی دار سطح تری گلیسیرید و VLDL-c سرم خون جوجه های گوشتی نسبت به شاهد شد ( 0/05>p ) اما سایر سطوح عصاره مالت جو و سین بیوتیک، تاثیر معنی داری بر سایر فراسنجه های خونی جوجه های گوشتی نسبت به شاهد، نداشتند. پژوهش حاضر نشان دادکه سطوح مختلف عصاره مالت و سین بیوتیک به تنهایی نتوانست شاخص عملکرد و راندمان لاشه را در هیچ یک ازدوره ها نسبت به شاهد به طور معنی داری بهبود ببخشد.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Effect of different levels of malt extract and synbiotic on performance, blood parameters and carcass characteristics in broiler chickens

نویسندگان [English]

  • Mohamad saleh Behzadi
  • mahmoud shams shargh
  • Behrouz Dastar
  • Mojgan Salmanian
Department of Animal and Poultry Nutrition, Faculty of Animal Science, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran.
چکیده [English]

The addition of various substances such as probiotics and prebiotics and synbiotics and herbs and their extracts as possible alternatives to antimicrobial growth stimulants have positive effects on the host.The aim of this experiment was to investigate the effect of different levels of barley extract and synbiotic on yield, carcass characteristics and blood parameters of Ross 308 broilers. The experiment was conducted in a completely randomized design with 5 treatments, 5 replications and 10 chickens in each experimental unit for a total of 250 one-day-old chickens. Experimental treatments including control (without additive), barley extract 0.1%, barley malt extract 0.2%, barley extract 0.3% and soluble synbiotic in water were tested on broilers for 42 days. Feed-intake, weight gain and feed conversion ratio were recorded in initial, growth, final pahse and throughout the experiment. In order to determine the characteristics of the carcass and measurement of blood parameters, at 42 days of age, two male chickens were selected from each experimental unit and slaughtered after weighing. The results showed that the addition of barley malt extract at the levels of 0.1, 0.2, 0.3% and synbiotic alone on feed intake, weight gain and feed conversion ratio of broilers compared to the control was not significant. Also, adding 0.3% barley malt extract to drinking water caused a significant increase in triglyceride and VLDL-c serum levels of broiler chickens compared to the control (p <0.05), but other levels of malt extract barley and synbiotic had no significant effect on other blood parameters of broilers compared to controls. The present study showed that different levels of malt extract and synbiotic alone could not significantly improve the performance index and carcass efficiency throughout the experiment compared to the control group.

کلیدواژه‌ها [English]

  • Broiler chicken
  • Blood parameters
  • Carcass characteristics
  • Malt extract
  • Synbiotic

مراجع

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فصلنامه محیط زیست جانوری
دوره 15، شماره 3
آبان 1402
صفحه 145-150

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