J. Anim Sci.
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

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 Goad, D. W.
Right arrow Articles by Nagaraja, T. G.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Goad, D. W.
Right arrow Articles by Nagaraja, T. G.

Journal of Animal Science, Vol 76, Issue 1 234-241, Copyright © 1998 by American Society of Animal Science

CLINICAL TRIAL

Ruminal microbial and fermentative changes associated with experimentally induced subacute acidosis in steers

D. W. Goad, C. L. Goad and T. G. Nagaraja
Department of Animal Sciences, Kansas State University, Manhattan 66506-1600, USA.

We used six ruminally cannulated steers in a two-period crossover design to study ruminal fermentative and microbial changes associated with induced subacute acidosis. Steers were adapted to either an 80% alfalfa hay (hay-adapted)- or corn grain (grain-adapted)-based concentrate diet. After feed was withheld for 24 h, steers were overfed with an all-grain diet at 3.5 x NEm daily for 3 d. Ruminal contents and jugular blood samples were collected before withholding feed and at 0 and 12 h daily for 3 d during the overfeeding period. Ruminal samples were analyzed for pH, lactate, VFA concentrations, and counts of total anaerobic, amylolytic, lactic acid-producing and -fermenting bacteria, and ciliated protozoa. Blood samples were analyzed to assess acid-base status. Ruminal pH declined to a range of 5.5 to 5.0 with increased VFA concentrations, but normal lactate concentrations (<5 mM) were indicative of subacute acidosis. Total viable and amylolytic bacterial counts were higher (P < .05) in grain-adapted than hay-adapted steers. Anaerobic lactobacilli counts increased over time (P < .01) in both groups and were generally higher in grain-adapted than hay-adapted steers. Lactate-utilizing bacteria were initially greater in grain-adapted than hay-adapted steers and increased over time in both groups following grain challenge. Total ciliates were initially higher (P < .05) in grain-adapted than hay-adapted steers and decreased after 48 h in both groups. Blood acid-base changes were minimal. Bacterial changes associated with subacute acidosis resemble those reported during adaptation to grain feeding, and the decline in ciliated protozoa may be the only microbial indicator of a potentially acidotic condition in the rumen.


This article has been cited by other articles:


Home page
 Appl. Environ. Microbiol.Home page
E. Khafipour, S. Li, J. C. Plaizier, and D. O. Krause
Rumen Microbiome Composition Determined Using Two Nutritional Models of Subacute Ruminal Acidosis
Appl. Envir. Microbiol., November 15, 2009; 75(22): 7115 - 7124.
[Abstract] [Full Text] [PDF]

Home page
 J ANIM SCIHome page
D. Moya, S. Calsamiglia, A. Ferret, M. Blanch, J. I. Fandino, L. Castillejos, and I. Yoon
Effects of dietary changes and yeast culture (Saccharomyces cerevisiae) on rumen microbial fermentation of Holstein heifers
J Anim Sci, September 1, 2009; 87(9): 2874 - 2881.
[Abstract] [Full Text] [PDF]

Home page
 J ANIM SCIHome page
M. Blanch, S. Calsamiglia, N. DiLorenzo, A. DiCostanzo, S. Muetzel, and R. J. Wallace
Physiological changes in rumen fermentation during acidosis induction and its control using a multivalent polyclonal antibody preparation in heifers
J Anim Sci, May 1, 2009; 87(5): 1722 - 1730.
[Abstract] [Full Text] [PDF]

Home page
 J ANIM SCIHome page
J. T. Vasconcelos and M. L. Galyean
ASAS Centennial Paper: Contributions in the Journal of Animal Science to understanding cattle metabolic and digestive disorders
J Anim Sci, July 1, 2008; 86(7): 1711 - 1721.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
Q. Zebeli, J. Dijkstra, M. Tafaj, H. Steingass, B. N. Ametaj, and W. Drochner
Modeling the Adequacy of Dietary Fiber in Dairy Cows Based on the Responses of Ruminal pH and Milk Fat Production to Composition of the Diet
J Dairy Sci, May 1, 2008; 91(5): 2046 - 2066.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
T. G. Nagaraja and E. C. Titgemeyer
Ruminal Acidosis in Beef Cattle: The Current Microbiological and Nutritional Outlook
J Dairy Sci, June 1, 2007; 90(13_suppl): E17 - E38.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
G. N. Gozho, D. O. Krause, and J. C. Plaizier
Rumen lipopolysaccharide and inflammation during grain adaptation and subacute ruminal acidosis in steers.
J Dairy Sci, November 1, 2006; 89(11): 4404 - 4413.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
E. Apper-Bossard, J. L. Peyraud, P. Faverdin, and F. Meschy
Changing Dietary Cation-Anion Difference for Dairy Cows Fed with Two Contrasting Levels of Concentrate in Diets
J Dairy Sci, February 1, 2006; 89(2): 749 - 760.
[Abstract] [Full Text] [PDF]

Home page
 J ANIM SCIHome page
D. W. Bevans, K. A. Beauchemin, K. S. Schwartzkopf-Genswein, J. J. McKinnon, and T. A. McAllister
Effect of rapid or gradual grain adaptation on subacute acidosis and feed intake by feedlot cattle
J Anim Sci, May 1, 2005; 83(5): 1116 - 1132.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
N. B. Cook, K. V. Nordlund, and G. R. Oetzel
Environmental Influences on Claw Horn Lesions Associated with Laminitis and Subacute Ruminal Acidosis in Dairy Cows
J Dairy Sci, July 1, 2004; 87(13_suppl): E36 - 46.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
A. T. Adesogan, M. B. Salawu, A. B. Ross, D. R. Davies, and A. E. Brooks
Effect of Lactobacillus buchneri, Lactobacillus fermentum, Leuconostoc mesenteroides inoculants, or a Chemical Additive on the Fermentation, Aerobic Stability, and Nutritive Value of Crimped Wheat Grains
J Dairy Sci, May 1, 2003; 86(5): 1789 - 1796.
[Abstract] [Full Text] [PDF]

Home page
 J ANIM SCIHome page
K. S. Schwartzkopf-Genswein, K. A. Beauchemin, D. J. Gibb, D. H. Crews Jr., D. D. Hickman, M. Streeter, and T. A. McAllister
Effect of bunk management on feeding behavior, ruminal acidosis and performance of feedlot cattle: A review
J Anim Sci, February 1, 2003; 81(14_suppl_2): E149 - 158.
[Abstract] [Full Text] [PDF]

Home page
 J ANIM SCIHome page
S. E. Ives, E. C. Titgemeyer, T. G. Nagaraja, A. del Barrio, D. J. Bindel, and L. C. Hollis
Effects of virginiamycin and monensin plus tylosin on ruminal protein metabolism in steers fed corn-based finishing diets with or without wet corn gluten feed
J Anim Sci, November 1, 2002; 80(11): 3005 - 3015.
[Abstract] [Full Text] [PDF]

Home page
 J ANIM SCIHome page
G. Gabel and J. R. Aschenbach
Influence of food deprivation on the transport of 3-O-methyl-{alpha}-D-glucose across the isolated ruminal epithelium of sheep
J Anim Sci, October 1, 2002; 80(10): 2740 - 2746.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
J. M. DeFrain, J. E. Shirley, E. C. Titgemeyer, A. F. Park, and R. T. Ethington
Impact of Feeding a Raw Soybean Hull-Condensed Corn Steep Liquor Pellet on Induced Subacute Ruminal Acidosis in Lactating Cows
J Dairy Sci, August 1, 2002; 85(8): 2000 - 2008.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1998 by the American Society of Animal Science.