Modeling Ruminal pH Fluctuations: Interactions between Meal Frequency and Digestion Rate

Journal of Dairy Science

Volumn 80, Issue 10, 1997, Pages 2429-2441

  Pitt, R E ^a   Pell, A N ^a  

^a Department of Obstetrics Gynecology   (United States)

Author keywords

Dietary buffers; Effective fiber; Meal frequency; Ruminal pH

Indexed keywords

LACTIC ACID; VOLATILE FATTY ACID;

ANIMAL; ARTICLE; BIOLOGICAL MODEL; BODY WEIGHT; CARBOHYDRATE DIET; CATTLE; DIETARY FIBER; DIGESTION; EATING; FERMENTATION; MATHEMATICS; METABOLISM; PH; PHYSIOLOGY; RUMINANT STOMACH; TIME;

ANIMALS; BODY WEIGHT; CATTLE; DIETARY CARBOHYDRATES; DIETARY FIBER; DIGESTION; EATING; FATTY ACIDS, VOLATILE; FERMENTATION; HYDROGEN-ION CONCENTRATION; LACTIC ACID; MATHEMATICS; MODELS, BIOLOGICAL; RUMEN; TIME FACTORS;

EID: 0031253272     PISSN: 00220302     EISSN: None     Source Type: Journal    
DOI: 10.3168/jds.S0022-0302(97)76195-2     Document Type: Article

References (36)

1. Beauchemin, K. A. 1991. Ingestion and mastication of feed by dairy cattle. Vet. Clin. North Am. Food Anim. Pract. 7:439.
2. Beauchemin, K. A., and J. G. Buchanan-Smith. 1990. Effects of fiber source and method of feeding on chewing activities, digestive function, and productivity of dairy cows. J. Dairy Sci. 73: 749.
3. Cassida, K. A., and M. R. Stokes. 1986. Eating and resting salivation in early lactation dairy cows. J. Dairy Sci. 69:1282.
4. Charmley, E., D. M. Veira, G. Butler, L. Aroeira, and H.C.V. Codagnone. 1991. The effect of frequency of feeding and supplementation with sucrose on ruminal fermentation of alfalfa silage given ad libitum or restricted to sheep. Can. J. Anim. Sci. 71:725.
5. 13C]lactate in the rumen of dairy cattle. Appl. Environ. Microbiol. 42:649.
6. Dado, R. G., and M. S. Allen. 1995. Intake limitations, feeding behavior, and rumen function of cows challenged with rumen fill and dietary fiber or inert bulk. J. Dairy Sci. 78:118.
7. Erdman, R. A. 1988. Dietary buffering requirements of the lactating cow: a review. J. Dairy Sci. 71:3246.
8. Fox, D. G., C. J. Sniffen, J. D. O'Connor, J. B. Russell, and P. J. Van Soest. 1992. A net carbohydrate and protein system for evaluating cattle diets: III. Cattle requirements and diet adequacy. J. Anim. Sci. 70:3578.
9. Froehlich, D. P., L. D. Albright, N. R. Scott, and P. Chandra. 1979. Steady-periodic analysis of glasshouse thermal environment. Trans. ASAE 22:387.
10. Ghorbani, G. R., J. A. Jackson, and R. W. Hemken. 1989. Effects of sodium bicarbonate and sodium sesquicarbonate on animal performance, ruminal metabolism, and systemic acid-base status. J. Dairy Sci. 72:2039.
11. Hall, M. B., B. A. Lewis, P. J. Van Soest, and L. E. Chase. 1997. A simple method for estimation of neutral detergent-soluble fibre. J. Sci. Food Agric. 74:441.
12. Hoover, W. H. 1986. Chemical factors involved in ruminal fiber digestion. J. Dairy Sci. 69:2755.
13. Le Ruyet, P., and W. B. Tucker. 1992. Ruminal buffers: temporal effects on buffering capacity and pH of ruminal fluid from cows fed a high concentrate diet. J. Dairy Sci. 75:1069.
14. Murphy, M. R. 1982. Analyzing and presenting pH data. J. Dairy Sci. 65:161.
15. Nocek, J. E. 1997. Bovine acidosis and its implication on laminitis. J. Dairy Sci. 80:1005.
16. Nocek, J. E., and D. G. Braund. 1985. Effect of feeding frequency on diurnal dry matter and water consumption, liquid dilution rate, and milk yield in first lactation. J. Dairy Sci. 68: 2238.
17. O'Connor, J. D., C. J. Sniffen, D. G. Fox, and W. Chalupa. 1993. A net carbohydrate and protein system for evaluating cattle diets: IV. Predicting amino acid adequacy. J. Anim. Sci. 71: 1298.
18. Pell, A. N., and P. Schofield. 1993. Computerized monitoring of gas production to measure forage digestion in vitro. J. Dairy Sci. 76:1063.
19. Pitt, R. E., J. S. Van Kessel, D. G. Fox, A. N. Pell, M. C. Barry, and P. J. Van Soest. 1996. Prediction of ruminal volatile fatty acids and pH within the net carbohydrate and protein system. J. Anim. Sci. 74:226.
20. Robinson, P. H. 1989. Dynamic aspects of feeding management for dairy cows. J. Dairy Sci. 72:1197.
21. Robinson, P. H., and R. E. McQueen. 1992. Influence of rumen fermentable neutral detergent fiber levels on feed intake and milk production of dairy cows. J. Dairy Sci. 75:520.
22. Robinson, P. H., and R. E. McQueen. 1994. Influence of supplemental protein source and feeding frequency on rumen fermentation and performance in dairy cows. J. Dairy Sci. 77:1340.
23. Russell, J. B., and J. M. Chow. 1993. Another theory for the action of ruminal buffer salts: decreased starch fermentation and propionate production. J. Dairy Sci. 76:826.
24. Russell, J. B., and D. B. Dombrowski. 1980. Effect of pH on the efficiency of growth of pure cultures of rumen bacteria in continuous culture. Appl. Environ. Microbiol. 39:604.
25. Russell, J. B., J. D. O'Connor, D. G. Fox, P. J. Van Soest, and C. J. Sniffen. 1992. A net carbohydrate and protein system for evaluating cattle diets: I. Ruminal fermentation. J. Anim. Sci. 71:1298.
26. Schofield, P., and A. N. Pell. 1995. Measurement and kinetic analysis of the neutral detergent-soluble carbohydrate fraction of legumes and grasses. J. Anim. Sci. 73:3455.
27. Shi, Y., and P. J. Weimer. 1992. Response surface analysis of the effects of pH and dilution rate on Ruminococcus flavefaciens FD-1 in cellulose-fed continuous culture. Appl. Environ. Microbiol. 58:2583.
28. Sniffen, C. J., J. D. O'Connor, P. J. Van Soest, D. G. Fox, and J. B. Russell. 1992. A net carbohydrate and protein system for evaluating cattle diets: II. Carbohydrate and protein availability. J. Anim. Sci. 70:3562.
29. Stokes, M. R., L. L. Vandemark, and L. S. Bull. 1986. Effects of sodium bicarbonate, magnesium oxide, and a commercial buffer mixture in early lactation cows fed hay crop silage. J. Dairy Sci. 69:1595.
30. Sutton, J. D., W. H. Broster, D. J. Napper, and J. W. Siviter. 1985. Feeding frequency for lactating cows: effects on digestion, milk production and energy utilization. Br. J. Nutr. 53:117.
31. Sutton, J. D., I. C. Hart, W. H. Broster, R. J. Elliott, and E. Schuller. 1986. Feeding frequency for lactating cows: effects on rumen fermentation and blood metabolites and hormones. Br. J. Nutr. 56:181.
32. Sutton, J. D., I. C. Hart, S. V. Morant, E. Schuller, and A. D. Simmonds. 1988. Feeding frequency for lactating cows: diurnal patterns of hormones and metabolites in peripheral blood in relation to milk-fat concentration. Br. J. Nutr. 60:265.
33. Thomson, S. A., D. E. Beever, M. J. Latham, M. E. Sharpe, and R. A. Terry. 1977. The effect of mineral salts in the diet on dilution rate, the pattern of rumen fermentation and composition of rumen microflora. J. Agric. Sci. (Camb.) 91:1.
34. Vasilatos, R., and P. J. Wangsness. 1980. Feeding behavior of lactating dairy cows as measured by time-lapse photography. J. Dairy Sci. 63:412.
35. West, J. W., C. E. Coppock, D. H. Nave, and G. T. Schelling. 1986. Effects of potassium buffers on feed intake in lactating dairy cows and on rumen fermentation in vivo and in vitro. J. Dairy Sci. 69:124.
36. Yang, C.M.J., and G. A. Varga. 1989. Effect of sampling site on protozoa and fermentation end products in the rumen of dairy cows. J. Dairy Sci. 72:1492.