comparison of the in situ degradation parameters of fresh and frozen-thawed 15n-labelled alfalfa and ryegrass

Authors

r. tahmasbi

a. khezri

o. dayani

abstract

degradation of dry matter (dm) and nitrogen (n) in fresh or frozen-thawed alfalfa and ryegrass was studied by using in situ technique. the forages were labeled with 15n during growth in a glasshouse, harvested at similar growth phase, and fresh (f) or frozen-thawed (ft) samples were incubated in the rumen of 3 sheep. there was no difference (p>0.05) between forage type (s) for the immediately soluble fraction (a) and the insoluble but slowly degradable fraction (b) estimates for dm and n disappearance over time. however, 15n values for a and b were significantly (p

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Journal title:
journal of livestock science and technologies

Publisher: shahid bahonar university of kerman and iranian society of animal science

ISSN

volume 2

issue 1 2014

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