- Published:
Studies on the Alterations In Blood Sugar and Rumen Fluid Following Peroral Administration of Readily Available Carbohydrates to Dairy Cows
Acta Veterinaria Scandinavica volume 9, pages 91–104 (1968)
Summary
After peroral administration of 10 % NaHCO3 solution + glucose the rise in blood sugar was greater than after glucose alone. This indicates that the oesophageal groove reflex can be released also in adult cattle. By this means part of the glucose administered probably passed direct to the abomasum — small intestine without first being converted into volatile fatty acids in the rumen. The blood sugar rise was diphasic, the first coming after 1 and 2 hrs. and the second after 12 and 24 hrs. Six hrs. after the ration there was no rise. After administration of NaHCO3 + fructose most of the cows had severe diarrhoea and the blood sugar value was unaffected. The changes in composition of the rumen fluid after NaHGO3 + glucose and after NaHCO3 + fructose were similar with the exception that the rumen pH was lower after the fructose ration.
In another experiment a comparison was made between the effects on blood sugar level and rumen fluid of molasses (saccharose) and whey (lactose) administered perorally. Molasses caused a manifest rise in blood sugar 6, 12 and 24 hrs. after the administration, whereas after whey the blood sugar level had risen only slightly at the same time. The molasses were quickly converted in the rumen, and the molar proportions of the volatile fatty acids formed were unaffected. The whey was broken down considerably more slowly and under formation of considerably more HAc and HBu than in the case of molasses. This is interpreted in the manner that the whey concentrate used should have a potentially positive effect on the milk fat content.
References
Armstrong, D. G., K. L. Blaxter, S.C.N. McCGraham: Utilisation of the end products of ruminant digestion. Proc. Brit. Soc. Animal Prod. 1957, Reprint 374.
Bartley, J. C. & A. L. Black: Effect of exogenous glucose on glucose metabolism in dairy cows. J. Nutr. 1966, 89, 317–328.
Bell, F.R. & E. R. Jones: Glucose tolerance in the bovine. J. comp. Path. 1945, 55, 117–124.
Bowman, R. L. & J.T. Huber: Effect of dietary lactose on milk composition and rumen volatile fatty acids. J. Dairy Sei. 1967, 50, 579–581.
Carlström, G., W. Hallgren, B. Pehrson & O. Wallin: Gas chromatographic determination of volatile fatty acids in aqueous media. Acta vet. scand. 1965, 6, 52–58.
Hodgson, R. E., W. H. Riddell & J. J. Hughes: Factors influencing the blood sugar level of dairy cattle. J. agric. Res. 1932, 44, 357–365.
Holmes, J. R.: Garbohydrate metabolism in the bovine. III. The effect of the administration of glucose by mouth to normal cattle of various ages. J. comp. Path. 1952, 62, 41–53.
Huber, J. T., C. E. Polan & R. A. Rosser: Effect of whey on milk composition and rumen volatile fatty acids in restricted-roughage rations. J. Dairy Sei. 1967, 50, 687–691.
Krogh, N.: Studies on alterations in the rumen fluid of sheep, especially concerning the microbial composition, when readily available carbohydrates are added to the food. I. Sucrose. Acta vet. scand. 1959, 1, 74–97.
Krogh, N.: Studies on alterations in the rumen fluid of sheep, especially concerning the microbial composition, when readily available carbohydrates are added to the food. II. Lactose. Acta vet. scand. 1960, 1, 383–410.
Leuthardt, F.: Der Stoffwechsel der Fructose. Schweiz, med. Wschr. 1960, 90, 455–459, 487-491.
Lindsay, D. B.: The significance of carbohydrate in ruminant metabolism. Vet. Rev. Annot. 1959, 5, 103–128.
Martin, R. J. Jr. & J. M. Wing: Effect of molasses level on digestibility of a high concentrate ration and on molar proportions of volatile fatty acids produced in the rumen of dairy steers. J. Dairy Sei. 1966, 49, 846–849.
Phillipson, A. T. & R. A. McAnally: Studies on the fate of carbohydrates in the rumen of the sheep. J. exp. Biol. 1942, 19, 199–214.
Purser, D. B. S. R. J. Moir: Ruminai flora studies in the sheep. Aust. J. agric. Res. 1959, 10, 555–564.
Riek, R. F.: The influence of sodium salts on the closure of the oesophageal groove in calves. Aust. vet. J. 1954, 30, 29–37.
Rook, J. A. F. & C. C. Balch: The effects of intraruminal infusions of acetic, propionic and butyric acids on the yield and composition of the milk of the cow. Brit. J. Nutr. 1961, 15, 361–369.
Schultz, L. H.: Treatment of ketosis in dairy cattle with sodium propionate. Cornell Vet. 1952, 42, 148–155.
Shaw, J. C., R. C. Powell Jr. & G. C. White: Studies on ketosis in dairy cattle. IV. The effect of glucose therapy and pasture feeding in cases of clinical ketosis. J. Amer. vet. med. Ass. 1942, 100, 473–478.
Simkins, K. L. Jr., J. W. Suttie & B. R. Baumgardt: Regulation of food intake in ruminants. 4. Effect of acetate, propionate, butyrate, and glucose on voluntary food intake in dairy cattle. J. Dairy Sei. 1965, 48, 1635–1642.
Yelle, W.: Biosyntesen av fruktose i relasjon til endokrine regulerings-mekanismer. Nord. Vet.-Med. 1964, 16, 1013–1028.
Waldo, D. R. & L. H. Schultz: Blood and rumen changes following the intra-ruminal administration of glycogenic materials. J. Dairy Sei. 1960, 43, 496–505.
Wester, J.: Der Schlundrinnenreflex beim Rind. Berl. tierärztl. Wschr. 1930, 46, 397–402.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Pehrson, B., Wallin, O. Studies on the Alterations In Blood Sugar and Rumen Fluid Following Peroral Administration of Readily Available Carbohydrates to Dairy Cows. Acta Vet Scand 9, 91–104 (1968). https://doi.org/10.1186/BF03547875
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1186/BF03547875