Particle Size Changes in Rumens of Cattle Grazing Kansas Flint Hills Range
Author
Forwood, J. R.
Owensby, C. E.
Towne, G.
Publisher
Society for Range Management
Publication Year
1985-03-01
Body

A ruminally fistulated Hereford steer and heifer grazing Kansas Flint Hills range were used with the objective of determining forage particle breakdown and distribution in different rumen sites over several hours post feeding during seasons of differing forage quality. During the first year, samples were taken after an overnight fast from 3 rumen sites and from feces early on the sample morning (AM sample). The cattle were fed and sampled again 12 hours later (PM sample). During year two, the cattle were sampled immediately as they came from the native pasture (PRE sample) in addition to the 2 other sample times. Samples were wet-sieved through a series of 5 screens to separate particle sizes. Material from each screen was dried, weighed and expressed as a percentage of the total of all screens. In the rumen, relative amounts of coarse particles generally decreased while amounts of smaller particles generally increased with advancing season. Forage maturity had similar effects on fecal particle sizes. Particles in the feces were more uniform in size than particles in the rumen. This material was digitized as part of a cooperative project between the Society for Range Management and the University of Arizona Libraries. The Journal of Range Management archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information. Migrated from OJS platform August 2020

Language
en
Resource Type
Text
Document Type
Journal Issue/Article
Digital Object Identifier (DOI)
10.2307/3899264
Additional Information
Forwood, J. R., Owensby, C. E., & Towne, G. (1985). Particle Size Changes in Rumens of Cattle Grazing Kansas Flint Hills Range. Journal of Range Management, 38(2), 171-176.
IISN
0022-409X
OAI Identifier
oai:repository.arizona.edu:10150/645530
Journal Volume
38
Journal Number
2
Journal Pages
171-176
Journal Name
Journal of Range Management
Keywords
particle size
forage crops
Kansas
rumen contents
cattle
nutritive value
grazing