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Effect of rumen bacteria from sheep adapted to a tanninferous diet on in vitro fermentation parameters of pistachio hulls using bovine inoculum | ||
| Iranian Journal of Veterinary Research | ||
| مقاله 6، دوره 16، شماره 4 - شماره پیاپی 53، 2015، صفحه 357-362 اصل مقاله (202.76 K) | ||
| نوع مقاله: Full paper (Original article) | ||
| شناسه دیجیتال (DOI): 10.22099/ijvr.2015.3288 | ||
| نویسندگان | ||
| Y. Babaei1؛ Y. Rouzbehan* 2؛ D. Alipour3 | ||
| 1Graduated from Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran | ||
| 2Department of Animal Science, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran | ||
| 3Department of Animal Science, Faculty of Agriculture, Bu-Ali Sina University, Hamedan, Iran | ||
| چکیده | ||
| Sheep adapted to consume tannins rich feeds such as oak leaf (OL) appear to develop defensive mechanisms by their ruminal bacteria against these polyphenols. The capabilities of ruminal isolated tannins resistant bacteria from these animals to ferment a tanniniferous feed (i.e., pistachio hulls, (PH) which were incubated with rumen fluid from Holstein dairy cows was assessed. Six g positive cocci were isolated from the rumen of sheep and the 16s rRNA gene sequences showed them to be closely related to Streptococcus gallolyticus. In three runs of in vitro gas production (GP), the effect of two of the isolates incubated with bufferedruminal fluid of Holstein cow and PH was evaluated. The GP was recorded from 1 to 96 h of incubation. Incubating either of the isolates with PH caused a significantly higher in vitro gas production, estimated parameters, in vitro organic matter disappearance, metabolisable energy and volatile fatty acids than those without any isolate. The improvement in the ruminal parameters when either of the isolates was used suggested the possible presence of isolated tannins-resistant bacteria (Streptococcus gallolyticus sp.), however, in vivo studies must be conducted to confirm the in vitro results. | ||
| کلیدواژهها | ||
| in vitro gas production؛ Oak leaves؛ Pistachio hull؛ Streptococcus gallolyticus؛ Tannins resistant bacteria | ||
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