کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5790330 | 1553979 | 2013 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Manipulation of in vitro ruminal fermentation and digestibility by dried rumen digesta
ترجمه فارسی عنوان
دستکاری در تخمیر شفاف و هضم در محیط آزمایشگاهی با هضم شکمبه خشک شده
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موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم دامی و جانورشناسی
چکیده انگلیسی
This experiment was to investigate the effect of dried rumen digesta (DRD) levels on rumen kinetic gas production, rumen ammonia-nitrogen (NH3-N) and digestibility of nutrients by using in vitro gas production techniques. The experimental design was a completely randomized design (CRD) and the dietary treatments were DRD supplementation at 0, 4, 8, 12, 16 and 20Â mg with 0.5Â g of roughage and concentrate ratio at 70:30. The gas production was recorded at 0, 0.5, 1, 2, 4, 6, 8, 12, 18, 24, 48, 72 and 96Â h of incubation and was used for calculated of kinetics gas. The results revealed that crude protein, NDF and ADF in DRD were 19.4%, 42.4% and 20.9% of DM, respectively. The intercept value (a) for the different treatments representing gas production from soluble fractions, gas production from the insoluble fraction (b), potential extent of gas production (a+b) were not significantly different among treatments (P>0.05). However, gas production rate (c) and cumulative gas production (96Â h of incubation) were significantly different between the supplemented groups and control (P<0.05) and were highest when supplementation of DRD at 8Â mg and the values were 0.09Â ml/h and 132.5Â ml/0.5Â g substrate, respectively (P<0.05). NH3-N concentrations were linearly increased when increasing levels of DRD and were highest with DRD supplementation at 20Â mg (25.3Â mg%). Moreover, in vitro dry matter digestibility (IVDMD) and in vitro organic matter digestibility (IVOMD) were highest when 8Â mg of DRD was supplemented and the mean values were 63.8% and 65.2% DM, respectively. Based on this experiment, it could be concluded that supplementation of DRD at 8Â mg could improve rumen fermentation, in vitro kinetics gas, NH3-N concentration and digestibility.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Livestock Science - Volume 153, Issues 1â3, May 2013, Pages 94-100
Journal: Livestock Science - Volume 153, Issues 1â3, May 2013, Pages 94-100
نویسندگان
A. Cherdthong, M. Wanapat,