An evaluation of the accuracy and precision of a stand-alone submersible continuous ruminal pH measurement system

Journal of Dairy Science

Volumn 89, Issue 6, 2006, Pages 2132-2140

  Penner, G B ^a,b   Beauchemin, K A ^b   Mutsvangwa, T ^a  

^a UNIVERSITY OF SASKATCHEWAN   (Canada)

^b LETHBRIDGE RESEARCH CENTRE   (Canada)

Author keywords

Acidosis; Dairy cow; Indwelling ruminal pH probe; Ruminal pH

Indexed keywords

ANIMALIA; BOS TAURUS;

ACIDOSIS; ANIMAL; ANIMAL DISEASE; ARTICLE; CATTLE; CATTLE DISEASE; CHEMISTRY; COMPARATIVE STUDY; ELECTRODE; EVALUATION; FEMALE; PH; PREGNANCY; RUMINANT STOMACH; SENSITIVITY AND SPECIFICITY; STANDARD; STOMACH DISEASE;

ACIDOSIS; ANIMALS; CATTLE; CATTLE DISEASES; ELECTRODES, IMPLANTED; FEMALE; HYDROGEN-ION CONCENTRATION; PREGNANCY; RUMEN; SENSITIVITY AND SPECIFICITY; STOMACH DISEASES;

EID: 33745895435     PISSN: 00220302     EISSN: None     Source Type: Journal    
DOI: 10.3168/jds.S0022-0302(06)72284-6     Document Type: Article

References (22)

1. Beauchemin, K. A., and W. Z. Yang. 2005. Effects of physically effective fiber on intake, chewing activity, and ruminal acidosis for dairy cows fed diets based on corn silage. J. Dairy Sci. 88:2117-2129.
2. Bevans, D. W., K. A. Beauchemin, K. S. Schwartzkopf-Genswein, J. J. McKinnon, and T. A. McAllister. 2005. Effect of rapid or gradual grain adaptation on subacute acidosis and feed intake by feedlot cattle. J. Anim. Sci. 83:1116-1132.
3. Dado, R. G., and M. S. Allen. 1993. Continuous computer acquisition of feed and water intakes, chewing, reticular motility, and ruminal pH of cattle. J. Dairy Sci. 76:1589-1600.
4. Duffield, T., J. C. Plaizier, A. Fairfield, R. Bagg, G. Vessie, P. Dick, J. Wilson, J. Aramini, and B. McBride. 2004. Comparison of techniques for measurement of rumen pH in lactating dairy cows. J. Dairy Sci. 87:59-66.
5. Enemark, J. M. D., G. Peters, and R. J. Jorgensen. 2003. Continuous monitoring of rumen pH-A case study with cattle. J. Vet. Med. Ser. A. 50:62-66.
6. Garrett, E. F., M. N. Pereira, K. N. Nordlund, L. E. Armentano, W. J. Goodger, and G. R. Oetzel. 1999. Diagnostic methods for the detection of subacute ruminal acidosis in dairy cows. J. Dairy Sci. 82:1170-1178.
7. Geishauser, T. 1993. An instrument for the collection and transfer of ruminal fluid and for the administration of water-soluble drugs in adult cattle. Bovine Pract. 27:38-42.
8. Graf, C. M., M. Kreuzer, and F. Dohme. 2005. Effects of supplemental hay and corn silage versus full-time grazing on ruminal pH and chewing activity of dairy cows. J. Dairy Sci. 88:711-725.
9. Hamlett, A., L. Ryan, and R. Wolfinger. 2004. On the use of proc mixed to estimate correlation in the presence of repeated measures. Proc. Statistics and Data Analysis. SAS Users Group International. http://www2.sas.com/proceedings/ sugi29/198-29.pdf Accessed Apr. 19, 2006.
10. Keefe, G. P., and T. H. Ogilvie. 1997. Comparison of oro-ruminal probe and rumenocentesis for prediction of rumen pH in dairy cattle. Proc. Annu. Conf. Am. Assoc. Bovine Pract. 30:168-169.
11. Kononoff, P. J., A. J. Heinrichs, and H. A. Lehman. 2003. The effect of corn silage particle size on eating behavior, chewing activities, and rumen fermentation in lactating dairy cows. J. Dairy Sci. 86:3343-3353.
12. Krause, K. M., and D. K. Combs. 2003. Effects of forage particle size, forage source, and grain fermentability on performance and ruminal pH in midlactation cows. J. Dairy Sci. 86:1382-1397.
13. Lin, L. I.-K. 1989. A concordance correlation coefficient to evaluate reproducibility. Biometrics 45:255-268.
14. Lin, L. I.-K. 1992. Assay validation using the concordance correlation coefficient. Biometrics 48:599-604.
15. Maekawa, M., K. A. Beauchemin, and D. A. Christensen. 2002. Chewing activity, saliva production, and ruminal pH of primiparous and multiparous lactating dairy cows. J. Dairy Sci. 85:1176-1182.
16. Nocek, J. E. 1997. Bovine acidosis: Implications on laminitis. J. Dairy Sci. 80:1005-1028.
17. Nocek, J. E., J. G. Allman, and W. P. Kautz. 2002. Evaluation of an indwelling ruminal probe methodology and effect of grain level on diurnal pH variation in dairy cattle. J. Dairy Sci. 85:422-428.
18. Oetzel, G. R., and K. V. Nordlund. 1998. Methods of evaluating ruminal pH in dairy cattle. Proc. Annu. Conf. Am. Assoc. Bovine Pract. 31:203. (Abstr.)
19. Owens, F. N., D. S. Secrist, W. J. Hill, and D. R. Gill. 1998. Acidosis in cattle: A review. J. Anim. Sci. 76:275-286.
20. Reis, R. B., and D. K. Combs. 2000. Effects of increasing levels of grain supplementation on rumen environment and lactation performance of dairy cows grazing grass-legume pasture. J. Dairy Sci. 83:2888-2898.
21. Smith, V. R. 1941. In vivo studies of hydrogen ion concentrations in the rumen of the dairy cow. J. Dairy Sci. 24:659-665.
22. Underwood, W. J. 1992. Rumen lactic acidosis: Part 1. Epidemiology and pathophysiology. Compend. Contin. Educ. Pract. Vet. 14:1127-1138.