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Effects of perennial ryegrass cultivars on intake, digestibility, and milk yield in dairy cows

BM Tas, HZ Taweel, HJ Smit, Anjo Elgersma, J Dijkstra and S Tamminga (2005) JOURNAL OF DAIRY SCIENCE. 88(9). p.3240-3248
abstract
The effects of 8 diploid perennial ryegrass (Lolium perenne L.) cultivars on dry matter (DM) intake, DM digestibility, and milk yield (MY) of dairy cows were evaluated in the summer of 2000 and 2001. Each summer, herbage was harvested daily and stall-fed to 12 dairy cows during six 2-wk periods. Six cultivars were fed in 3 periods (1, 3, and 5) according to a double 3 x 3 Latin square design. In the other periods (2, 4, and 6), 2 cultivars were fed in a repeated measurement design. Herbage mass and leaf blades in the sward canopy varied among cultivars, but differences were not consistent between years. The largest differences in herbage composition were found in water-soluble carbohydrate content, followed by crude protein content. only small differences were found in the neutral detergent fiber (NDF) content. A higher water-soluble carbohydrate content was found in 2 cultivars in both years, whereas ranking of cultivars in crude protein and NDF content was not consistent with years. Dry matter intake and MY were not affected by cultivar. In both years, DM digestiblity was high (>77%), with very small differences among cultivars in 2000 (<0.5%) and larger differences in 2001 (up to 4%). This was associated with a delayed heading date in 2001, resulting in larger differences in leaf blades and NDF content among cultivars. It may be concluded that the 8 cultivars used in our experiments do not provide grass breeders with encouraging evidence to include selection criteria for an increased DM intake, DM digestibility, and MY in their grass breeding schemes.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
intake, milk yield, cultivar, perennial ryegrass, RUMINANTS, NITROGEN, WHITE CLOVER, RUMEN FERMENTATION, LOLIUM-PERENNE, WATER-SOLUBLE CARBOHYDRATE
journal title
JOURNAL OF DAIRY SCIENCE
J. Dairy Sci.
volume
88
issue
9
pages
3240 - 3248
Web of Science type
Article
Web of Science id
000231260300024
JCR category
AGRICULTURE, DAIRY & ANIMAL SCIENCE
JCR impact factor
2.24 (2005)
JCR rank
2/42 (2005)
JCR quartile
1 (2005)
ISSN
0022-0302
language
English
UGent publication?
yes
classification
A1
id
320713
handle
http://hdl.handle.net/1854/LU-320713
date created
2005-08-19 15:46:00
date last changed
2016-12-19 15:44:34
@article{320713,
  abstract     = {The effects of 8 diploid perennial ryegrass (Lolium perenne L.) cultivars on dry matter (DM) intake, DM digestibility, and milk yield (MY) of dairy cows were evaluated in the summer of 2000 and 2001. Each summer, herbage was harvested daily and stall-fed to 12 dairy cows during six 2-wk periods. Six cultivars were fed in 3 periods (1, 3, and 5) according to a double 3 x 3 Latin square design. In the other periods (2, 4, and 6), 2 cultivars were fed in a repeated measurement design. Herbage mass and leaf blades in the sward canopy varied among cultivars, but differences were not consistent between years. The largest differences in herbage composition were found in water-soluble carbohydrate content, followed by crude protein content. only small differences were found in the neutral detergent fiber (NDF) content. A higher water-soluble carbohydrate content was found in 2 cultivars in both years, whereas ranking of cultivars in crude protein and NDF content was not consistent with years. Dry matter intake and MY were not affected by cultivar. In both years, DM digestiblity was high ({\textrangle}77\%), with very small differences among cultivars in 2000 ({\textlangle}0.5\%) and larger differences in 2001 (up to 4\%). This was associated with a delayed heading date in 2001, resulting in larger differences in leaf blades and NDF content among cultivars. It may be concluded that the 8 cultivars used in our experiments do not provide grass breeders with encouraging evidence to include selection criteria for an increased DM intake, DM digestibility, and MY in their grass breeding schemes.},
  author       = {Tas, BM and Taweel, HZ and Smit, HJ and Elgersma, Anjo and Dijkstra, J and Tamminga, S},
  issn         = {0022-0302},
  journal      = {JOURNAL OF DAIRY SCIENCE},
  keyword      = {intake,milk yield,cultivar,perennial ryegrass,RUMINANTS,NITROGEN,WHITE CLOVER,RUMEN FERMENTATION,LOLIUM-PERENNE,WATER-SOLUBLE CARBOHYDRATE},
  language     = {eng},
  number       = {9},
  pages        = {3240--3248},
  title        = {Effects of perennial ryegrass cultivars on intake, digestibility, and milk yield in dairy cows},
  volume       = {88},
  year         = {2005},
}

Chicago
Tas, BM, HZ Taweel, HJ Smit, Anjo Elgersma, J Dijkstra, and S Tamminga. 2005. “Effects of Perennial Ryegrass Cultivars on Intake, Digestibility, and Milk Yield in Dairy Cows.” Journal of Dairy Science 88 (9): 3240–3248.
APA
Tas, B., Taweel, H., Smit, H., Elgersma, A., Dijkstra, J., & Tamminga, S. (2005). Effects of perennial ryegrass cultivars on intake, digestibility, and milk yield in dairy cows. JOURNAL OF DAIRY SCIENCE, 88(9), 3240–3248.
Vancouver
1.
Tas B, Taweel H, Smit H, Elgersma A, Dijkstra J, Tamminga S. Effects of perennial ryegrass cultivars on intake, digestibility, and milk yield in dairy cows. JOURNAL OF DAIRY SCIENCE. 2005;88(9):3240–8.
MLA
Tas, BM, HZ Taweel, HJ Smit, et al. “Effects of Perennial Ryegrass Cultivars on Intake, Digestibility, and Milk Yield in Dairy Cows.” JOURNAL OF DAIRY SCIENCE 88.9 (2005): 3240–3248. Print.