نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه علوم دامی، دانشکده علوم دامی و صنایع غذایی، دانشگاه علوم کشاورزی و منابع طبیعی خوزستان، ملاثانی، اهواز، ایران

2 دانشیار گروه علوم دامی، دانشکده علوم دامی و صنایع غذایی، دانشگاه علوم کشاورزی و منابع طبیعی خوزستان، ملاثانی، اهواز، ایران

10.22059/jap.2023.365526.623759

چکیده

در مطالعه حاضر اثرات استفاده از مخمر زنده، اتولیزشده و ترکیب آن‌ها بر عملکرد و بافت‌شناسی روده در بلدرچین ژاپنی، با استفاده  از 360 قطعه جوجه یک‌روزه در قالب طرح کاملاً تصادفی در چهار گروه آزمایشی و شش تکرار و 15 پرنده در هر تکرار بررسی شد. گروه‌های آزمایشی شامل گروه شاهد: تغذیه‌شده با جیره پایه بدون افزودنی، گروه دوم: تغذیه‌شده با جیره پایه حاوی 0/4درصد مخمر زنده، گروه سوم: تغذیه‌شده با جیره پایه حاوی 0/4درصد مخمر اتولیزشده و گروه چهارم: تغذیه‌شده با جیره پایه حاوی0/2 درصد مخمر زنده و 0/2 درصد مخمر اتولیزشده بودند. نتایج نشان داد که افزودن مخمر اتولیزشده بیش‌ترین افزایش وزن بدن را نسبت به شاهد و مخلوط آن‌ها در کل دوره آزمایش ایجاد کرد (p>0/05). وزن نسبی ران و پانکراس (درصدی از وزن زنده) و هم‌چنین طول دوازدهه در پرندگان تغذیه‌شده با مخمر اتولیزشده در مقایسه با تیمار شاهد و مخمر زنده افزایش نشان داد (p>0/05). بیش‌ترین ارتفاع پرزهای دوازدهه در پرندگان تغذیه‌شده با مخمر اتولیزشده و مخمر زنده در مقایسه با تیمار شاهد و مخلوط آن‌ها مشاهده شد (p>0/05). پرندگان تغذیه‌شده با مخمر اتولیزشده کاهش معنی‌دار باکتری­های ایکولای و افزایش باکتری­های لاکتوباسیلوس را در مقایسه با تیمار شاهد نشان دادند (p>0/05). نتایج نشان داد که استفاده از مخمر اتولیزشده با افزایش ارتفاع پرز دوازدهه، کاهش جمعیت میکروبی ایکولای و افزایش جمعیت لاکتوباسیلوس سکوم سبب بهبود عملکرد بلدرچین ژاپنی می شود.

کلیدواژه‌ها

عنوان مقاله [English]

Comparison of the effect of live and autolyzed yeast on performance and cecal microbial population of Japanese quail

نویسندگان [English]

  • Zahra Kordpour 1
  • Somayyeh Salari 2

1 Animal Science Department, Animal Science and Food Technology Faculty, Agricultural Sciences and Natural Resources University of Khuzestan, Mollasani, Ahvaz, Iran

2 Associate professor of Department of Animal Science, Animal Science and Food Technology Faculty, Agricultural Sciences and Natural Resources University of Khuzestan,, Mollasani, Ahvaz, Iran

چکیده [English]

In order to investigate the effects of using live, autolyzed yeast and their combination on performance, and intestinal histology in Japanese quail, 360 of one-day-old chicks were used. Birds were randomly divided into 4 experimental groups in a completely randomized design with 6 replicates. The experimental groups included the control group: fed with basal diet without additives, the second group: fed with basal diet containing 0.4% live yeast, the third group: fed with basal diet containing 0.4% autolyzed yeast and the fourth group: fed with basal diet containing 0.2% live yeast and 0.2% autolyzed yeast. The results showed that the addition of autolyzed yeast caused the greatest increase in body weight gain compared to the control and their mixture in the whole period of experiment (P<0.05). The weight of thigh and pancreas as well as the length of duodenum increased significantly in birds fed with autolyzed yeast compared to live yeast and their mixture (P<0.05). The highest height of duodenal villi was observed in birds fed with autolyzed yeast and live yeast compared to the control treatment and their mixture. Birds fed with autolyzed yeast showed a significant decrease in E. coli bacteria and an increase in Lactobacillus bacteria (P<0.05). The results showed that the use of autolyzed yeast as well as live yeast can be useful in feeding Japanese quails due to improving performance, increasing the height of duodenal villi, reducing the microbial population of E. coli and increasing the cecal population of Lactobacillus.

کلیدواژه‌ها [English]

  • histology
  • microbial population
  • probiotic
  • quail
  • yeast
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