نتایج جستجو برای: microbial population

تعداد نتایج: 798373  

Journal: :Applied and environmental microbiology 2010
S C Fernando H T Purvis F Z Najar L O Sukharnikov C R Krehbiel T G Nagaraja B A Roe U Desilva

High-grain adaptation programs are widely used with feedlot cattle to balance enhanced growth performance against the risk of acidosis. This adaptation to a high-grain diet from a high-forage diet is known to change the rumen microbial population structure and help establish a stable microbial population within the rumen. Therefore, to evaluate bacterial population dynamics during adaptation to...

Journal: :Philosophical Transactions of the Royal Society B: Biological Sciences 2020

Journal: :علوم دامی ایران 0
ابراهیم نوریان سرور دانش آموختۀ دکتری تغذیۀ دام گروه علوم دامی، دانشکدۀ کشاورزی، دانشگاه تربیت مدرس، تهران، ایران یوسف روزبهان عضو هیأت علمی گروه علوم دامی، دانشکدۀ کشاورزی، دانشگاه تربیت مدرس، تهران، ایران

the effect of three levels (0, 28.65, 57.31mg /200mg substrate) of golpar (heracleum persicum: hp) on in vitro rumen ecosystem and on methane production was assessed. gas production (gp) was recorded from 1 to 54h past of incubation. the parameters studied were in vitro gas production (ivgp), methane production, ammonia-n concentration (nh3-n), in vitro organic matter degradability (ivomde), pa...

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