تأثیر جیره‌های حاوی دانه جو و ذرت (پرک ‌شده با بخار یا بلغور شده)، با یا بدون پروبیوتیک انتروکوکوس ‌فاسیوم بر قابلیت هضم، pH مدفوع، گلوکز خون و آسیب‌های پاتولوژیک اسب‌های بالغ

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی دکترای تخصصی، گروه علوم دامی، دانشکده کشاورزی، دانشگاه آزاد اسلامی واحد اراک

2 استادیار، گروه علوم دامی، دانشکده کشاورزی، دانشگاه آزاد اسلامی واحد اراک

3 دانش آموخته دکترای تخصصی، گروه علوم دامی، دانشکده کشاورزی، دانشگاه صنعتی اصفهان

چکیده

هدف از انجام این تحقیق، بررسی اثر فرآوری دانه‌های جو و ذرت (پرک ‌شده با بخار یا بلغور شده) و افزودن پروبیوتیک حاوی انتروکوکوس فاسیوم (Enterococcus faecium، 10 گرم در روز با دوز 1011×5/2 واحد تشکیل­دهنده کلونی) در جیره، بر قابلیت هضم مواد مغذی، pH مدفوع، گلوکز خون و آسیب­های پاتولوژیک در اسب­های بالغ نژاد کرد بود. در این آزمایش از 12 رأس اسب بالغ با میانگین وزن 43±416 کیلوگرم در قالب طرح مربع لاتین تکرار شده 4×4 به روش فاکتوریل 2×2 استفاده شد. آزمایش در چهار دوره 28 روزه، شامل 21 روز برای سازگاری و هفت روز برای نمونه­برداری، انجام شد. تیمارهای آزمایشی عبارت بودند از جیره‌های (با نسبت 60 به 40 علوفه به کنسانتره) حاوی: 1) غلات بلغور شده بدون پروبیوتیک، 2) غلات بلغور شده همراه با پروبیوتیک به میزان 10 گرم در روز به ازای هر اسب، 3) غلات پرک ­شده با بخار بدون پروبیوتیک و 4) غلات پرک ­شده با بخار همراه با پروبیوتیک به میزان 10 گرم در روز به ازای هر اسب. نتایج نشان داد قابلیت هضم ماده خشک، ماده آلی، NDF، ADF، گلوکز خون، وقوع لنگش و کولیک تحت تأثیر پرک­کردن غلات با بخار، افزودن پروبیوتیک و اثر متقابل آنها قرار نگرفت (05/0<P). میانگین pH مدفوع در تیمارهای مختلف برابر با 57/6 بود و تحت تأثیر نوع فرآوری غله، افزودن پروبیوتیک و اثر متقابل آنها قرار نگرفت (05/0<P). در مجموع، تغذیه غلات پرک ‌شده با بخار به­جای غلات بلغور شده و کاربرد 10 گرم پروبیوتیک انتروکوکوس فاسیوم به ازای هر رأس حیوان در جیره اسب، تأثیری بر قابلیت هضم، pH مدفوع، گلوکز خون، وقوع لنگش و کولیک نداشت. به هر حال، تأثیر تغذیه با سطوح بالاتر پروبیوتیک انتروکوکوس ­فاسیوم در جیره­های حاوی سطح بالاتری از غلات فرآوری ­شده می‌تواند بررسی شود.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Influence of diets containing barley and corn grain (steam-flaked or cracked), with or without Enterococcus faecium probiotic on digestibility, fecal pH, blood glucose, and pathologic problems of adult horses

نویسندگان [English]

  • E. Saeidi 1
  • J. Fakhraei 2
  • H. Mansoori Yarahmadi 2
  • S. Mojahedi 3
1 Ph.D. Student of Animal Nutrition, Department of Animal Science, Islamic Azad University, Arak Branch, Arak, Iran
2 Assistant Professor, Department of Animal Science, Islamic Azad University, Arak Branch, Arak, Iran
3 Former Ph.D. Student, Department of Animal Science, Faculty of Agriculture, Isfahan University of Technology, Isfahan, Iran
چکیده [English]

The objective of this study was to investigate the effect of two processing methods of barley and corn grains (steam-flaking or cracking) and the addition of a probiotic containing Enterococcus faecium (10 g/d to provide 2.5 × 1011 colony-forming unit) to diet on nutrients digestibility, fecal pH, blood glucose, and pathologic problems of horses. In this experiment, 12 adult Kurdish horses with an average weight of 416± 43 kg were used in a replicated 4×4 Latin Square experiment with a 2×2 factorial design during four periods of 28 days, including 21 days for dietary adaptation and seven days for sampling. Experimental diets (60:40 forage to concentrate ratio) were: 1) Cracked grains based diet without probiotic, 2) Cracked grains based diet with 10 g/d probiotics, 3) Steam-flaked grains based diet without probiotic, 4) Steam-flaked grains based diet with 10 g/d probiotics. Results showed that mean fecal pH was 6.57 in different treatments and was not affected by the type of grain processing, probiotic supplementation, and their interaction (P>0.05). Also, digestibility of dry matter, organic matter, NDF, and ADF, as well as blood glucose, lameness, and colitis incidence were not affected by two types of cereal processing including cracking or steam-flaking, the addition of probiotic, and their interaction. Overall, our results showed that replacing steam-flaked corn for cracked corn and supplementing 10 g per day enterococcus faecium probiotic did not affect digestibility, fecal pH, and blood glucose. However, further research is recommended to investigate the effects of higher enterococcus faecium probiotic doses in high grain diets.

کلیدواژه‌ها [English]

  • Horse
  • Enterococcus faecium
  • Cereal processing
  • Digestibility
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