Rumen degradation characteristics of perennial ryegrass cultivars during the growing season

The objective of this experiment was to evaluate the effects of sward characteristics and chemical composition of eight diploid perennial ryegrass cultivars during the growing season on degradation characteristics in the rumen of dairy cows. As part of an indoor-feeding experiment with dairy cows, s...

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Bibliographic Details
Published in:Animal feed science and technology 2006-11, Vol.131 (1), p.103-120
Main Authors: Tas, B.M., Taweel, H.Z., Smit, H.J., Elgersma, A., Dijkstra, J., Tamminga, S.
Format: Article
Language:English
Subjects:
Biological and medical sciences
chemical composition
Cultivar
cultivars
dairy cows
Feed and pet food industries
Food industries
Fundamental and applied biological sciences. Psychology
growing season
Lolium perenne
Nitrogen
Perennial ryegrass
range management
Rumen degradation
rumen fermentation
ruminant nutrition
sward
Water-soluble carbohydrates
weather
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Summary:The objective of this experiment was to evaluate the effects of sward characteristics and chemical composition of eight diploid perennial ryegrass cultivars during the growing season on degradation characteristics in the rumen of dairy cows. As part of an indoor-feeding experiment with dairy cows, sward characteristics were measured, and samples of cultivars were collected on two consecutive days during seven periods throughout the summer. Cultivars did not differ (P>0.05) in sward characteristics. Two cultivars had higher concentrations of water-soluble carbohydrates (WSC, P
ISSN:0377-8401
1873-2216
DOI:10.1016/j.anifeedsci.2006.02.002