کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5517576 1543278 2017 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of Entodinium caudatum on starch intake and glycogen formation by Eudiplodinium maggii in the rumen and reticulum
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم کشاورزی و بیولوژیک (عمومی)
پیش نمایش صفحه اول مقاله
Effect of Entodinium caudatum on starch intake and glycogen formation by Eudiplodinium maggii in the rumen and reticulum
چکیده انگلیسی


- This study aimed to quantify the starch and reserve glucans in the cells of E. maggii in defaunated and faunated sheep.
- Inoculation of E. caudatum into the rumen of sheep faunated E. maggii caused a drop both types of carbohydrates.
- The lowest content of the carbohydrates was always found just before feeding and highest 4 h thereafter.
- The both ciliate species engulf starch, diminishing the pool of starch available for amylolytic bacteria.

This study aimed to quantify the engulfed starch and reserve α-glucans (glycogen) in the cells of the ciliates Eudiplodinium maggii, as well the α-glucans in defaunated and selectively faunated sheep. The content of starch inside the cell of ciliates varied from 21 to 183 mg/g protozoal DM relative to the rumen fauna composition whereas, the glycogen fluctuated between 17 and 126 mg/g dry matter (DM) of this ciliate species. Establishment of the population Entodinium caudatum in the rumen of sheep already faunated with E. maggii caused a drop in both types of quantified carbohydrates. The content of α-glucans in the rumen of defaunated sheep varied from 4.4 to 19.9 mg/g DM and increased to 7.4-29.9 or 11.8-33.9 mg/g DM of rumen contents in the presence of only E. maggii or E. maggii and E. caudatum, respectively. The lowest content of the carbohydrates was always found just before feeding and the highest at 4 h thereafter. The α-glucans in the reticulum varied 7.5-40.1, 14.3-76.8 or 21.9-106.1 mg/g DM of reticulum content for defaunated, monofaunated or bifaunated sheep, respectively. The results indicated that both ciliate species engulf starch granules and convert the digestion products to the glycogen, diminishing the pool of starch available for amylolytic bacteria.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Journal of Protistology - Volume 57, February 2017, Pages 38-49
نویسندگان
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