JDS
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Journal of Dairy Science Vol. 80 No. 11 2885-2895
© 1997 by American Dairy Science Association ®
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Yang, W. Z.
Right arrow Articles by Rode, L. M.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Yang, W. Z.
Right arrow Articles by Rode, L. M.

Comparison of Barley, Hull-less Barley, and Corn in the Concentrate of Dairy Cows

W. Z. Yang 1, K. A. Beauchemin 1, B. I. Farr 1, and L. M. Rode 1

1 Research Centre, Agriculture and Agri-Food Canada, PO Box 3000, Lethbridge, AB, Canada T1J 4B1

Twelve multiparous and 12 primiparous lactating Holstein cows were used to compare the effects of hull-less barley with barley and corn on dry matter intake (DMI), digestibility, and milk production. Three concentrates were formulated using steam-rolled grains: barley, hull-less barley, or corn. During three 21-d periods, cows received a total mixed diet consisting of 60% concentrate, 30% barley silage, and 10% cubed alfalfa hay [dry matter (DM) basis. Milk production and DMI were higher for cows fed the corn diet than for cows fed the barley or hull-less barley diets; no interaction with parity was detected. The DMI of cows fed the hull-less barley and barley diets were similar. Despite the higher estimated energy density of the hull-less barley diet, milk production was similar for cows fed the hull-less barley and barley diets because of the lower digestibility of the hull-less barley. Results of an in situ study showed that, for steam-rolled grains, DM and starch from hull-less barley were less degradable than were DM and starch from barley, although the opposite result was observed for ground grains. For steam-rolled hull-less barley, low ruminal degradabilities of DM and starch were apparently not compensated by high intestinal digestibility because total tract digestibility and milk production were lower than expected. Although the net energy for lactation value of hull-less barley is higher than that for barley, milk production by cows might be limited unless hull-less barley is adequately processed to ensure high ruminal and total tract digestibilities.

Key Words: hull-less barley • barley • corn • digestibility

Submitted on June 18, 1996
Accepted on May 21, 1997




This article has been cited by other articles:


Home page
 J DAIRY SCIHome page
S. Iqbal, Q. Zebeli, A. Mazzolari, G. Bertoni, S. M. Dunn, W. Z. Yang, and B. N. Ametaj
Feeding barley grain steeped in lactic acid modulates rumen fermentation patterns and increases milk fat content in dairy cows
J Dairy Sci, December 1, 2009; 92(12): 6023 - 6032.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
W. Z. Yang and K. A. Beauchemin
Increasing physically effective fiber content of dairy cow diets through forage proportion versus forage chop length: Chewing and ruminal pH
J Dairy Sci, April 1, 2009; 92(4): 1603 - 1615.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
C. Silveira, M. Oba, K. A. Beauchemin, and J. Helm
Effect of Grains Differing in Expected Ruminal Fermentability on the Productivity of Lactating Dairy Cows
J Dairy Sci, June 1, 2007; 90(6): 2852 - 2859.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
C. Silveira, M. Oba, W. Z. Yang, and K. A. Beauchemin
Selection of Barley Grain Affects Ruminal Fermentation, Starch Digestibility, and Productivity of Lactating Dairy Cows
J Dairy Sci, June 1, 2007; 90(6): 2860 - 2869.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
A. E. Foley, A. N. Hristov, A. Melgar, J. K. Ropp, R. P. Etter, S. Zaman, C. W. Hunt, K. Huber, and W. J. Price
Effect of barley and its amylopectin content on ruminal fermentation and nitrogen utilization in lactating dairy cows.
J Dairy Sci, November 1, 2006; 89(11): 4321 - 4335.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
R. L. Kincaid, D. K. Garikipati, T. D. Nennich, and J. H. Harrison
Effect of Grain Source and Exogenous Phytase on Phosphorus Digestibility in Dairy Cows
J Dairy Sci, August 1, 2005; 88(8): 2893 - 2902.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
J.-S. Eun, K. A. Beauchemin, S.-H. Hong, and W. Z. Yang
Effects of Mechanical Processing on the Nutritive Value of Barley Silage for Lactating Dairy Cows
J Dairy Sci, December 1, 2004; 87(12): 4170 - 4177.
[Abstract] [Full Text] [PDF]

Home page
 J ANIM SCIHome page
J. J. Reed, G. P. Lardy, M. L. Bauer, T. C. Gilbery, and J. S. Caton
Effect of field pea level on intake, digestion, microbial efficiency, ruminal fermentation, and in situ disappearance in beef steers fed growing diets
J Anim Sci, July 1, 2004; 82(7): 2123 - 2130.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
T. Eriksson, M. Murphy, P. Ciszuk, and E. Burstedt
Nitrogen Balance, Microbial Protein Production, and Milk Production in Dairy Cows Fed Fodder Beets and Potatoes, or Barley
J Dairy Sci, April 1, 2004; 87(4): 1057 - 1070.
[Abstract] [Full Text] [PDF]

Home page
 Crop Sci.Home page
J.G.P. Bowman, T.K. Blake, L.M.M. Surber, D.K. Habernicht, and H. Bockelman
Feed-Quality Variation in the Barley Core Collection of the USDA National Small Grains Collection
Crop Sci., May 1, 2001; 41(3): 863 - 870.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1997 by the American Dairy Science Association ®.