مطالعه مقایسه‌ای قابلیت هضم کاه گندم توسط قارچهای بی هوازی شکمبه گاومیش خوزستان و گاو هلشتاین در شرایط آزمایشگاهی

Subject Areas : Camel

ف. شاکرمی ¹ , م. چاجی ² , م. اسلامی ³ , ط. محمد آبادی ⁴ , م. بوجارپور ⁵

1 - Department of Animal Science, Ramin Agricultural and Natural Resources University, Mollasani, Ahvaz, Iran
2 - Department of Animal Science, Ramin Agricultural and Natural Resources University, Mollasani, Ahvaz, Iran
3 - Department of Animal Science, Ramin Agricultural and Natural Resources University, Mollasani, Ahvaz, Iran
4 - Department of Animal Science, Ramin Agricultural and Natural Resources University, Mollasani, Ahvaz, Iran
5 - Department of Animal Science, Ramin Agricultural and Natural Resources University, Mollasani, Ahvaz, Iran

Received: 2014-04-26 Accepted : 2014-06-15 Published : 2015-06-01

Keywords: تولید گاز, شمارش قارچ‌های شکمبه, میکروارگانیسم‌های شکمبه, کشت اختصاصی قارچهای بی هوازی شکمبه,

Abstract :

این مطالعه به منظور مقایسه قابلیت هضم کاه گندم توسط قارچ‌ها و کل میکروارگانیسم‏های شکمبه (WRM) گاو و گاومیش انجام شد. قابلیت هضم ماده خشک (DMD)، الیاف نامحلول در شوینده خنثی (DNDF) و اسیدی (ADFD) توسط WRM و قارچ‌های شکمبه گاو و گاومیش به روش هضم آزمایشگاهی، تولید گاز و کشت اختصاصی قارچ‌های شکمبه (SRAFC) مقایسه شد. DMD،  NDFDو ADFD کاه توسط WRM گاومیش (به ترتیب 80/60، 93/49 و 45/17 درصد) بیشتر از گاو (به ترتیب 00/53، 63/38 و 62/10 درصد) بود (05/0P<). صرف نظر از نوع میکروارگانیسم‌ها DMD (05/0P>)، NDF و ADF توسط گاومیش (03/51، 41/44 و 09/12 درصد) بیشتر از گاو (40/48، 34/36 و 76/8) بود (05/0P<). پتانسیل تولید گاز (B) کاه توسط قارچ‌ها و WRM گاو بیشتر از گاومیش بود (05/0P<). نرخ تولید گاز (C) توسط WRM و قارچ‌های شکمبه گاومیش بیشتر از گاو بود (05/0P<). صرف نظر از نوع میکروارگانیسم، C کاه در گاومیش بیشتر از گاو بود (05/0P<)، و بلعکس برای B بود (05/0P<). صرف نظر از نوع دام، قابلیت هضم و B برای WRM بیشتر از قارچ‌ها بود (05/0P<)، اما برای نرخ تولید گاز بین آنها تفاوتی وجود نداشت. در روش SRAFC، DMD کاه در گاومیش در روزهای 3 و 12 بیشتر از گاو بود (05/0P<). تعداد قارچ‌ها در شکمبه گاو بیشتر از گاومیش بود (05/0P<). در کل، می‌توان بیان نمود که توان قارچ‌ها و WRM گاومیش بیشتر یا برابر با گاو بود. بنابراین، نتایج برتری گاومیش نسبت به گاو هلشتاین در استفاده از مواد فیبری کم کیفیت را نشان داد.

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