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Effects of experimentally-impaired reticular contractions on digesta passage in sheep

Published online by Cambridge University Press:  09 March 2007

M Kaske  and
A Midasch
M Kaske
Affiliation:
Department of Physiology, School of Veterinary Medicine, Bischofsholer Damm 15, 30173 Hannover, Germany
A Midasch
Affiliation:
Department of Physiology, School of Veterinary Medicine, Bischofsholer Damm 15, 30173 Hannover, Germany
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Abstract

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The aim of the study was to evaluate the functional role of reticular contractions for digesta passage in sheep. Feed intake, mean retention time of fluid and plastic particles in the reticulo-rumen, rumen fluid volume, forestomach motility and particle size distribution in the faeces were determined in five rumen-fistulated sheep fed on hay ad libitum (Expt 1). The same variables were determined when reticular movements were impaired for 10 d by introducing a silicone-covered lead weight (500 g) into the reticulum (Expt 2). As feed intake dropped in Expt 2 by 27% compared with Expt 1, the sheep received in an additional experiment exactly the amount of feed which had been consumed during Expt 2 and measurements were repeated without impairing reticular movements (Expt 3). The introduction of the weight did not affect the frequency of A- or B-cycles, but elevation of the reticular floor in a cranio-dorsal direction during the biphasic contraction was markedly reduced. The pattern of marker excretion indicated a drastically changed composition of reticular outflow in Expt 2 compared with Expts 1 and 3. During Expt 2, rumen fluid volume was similar to that in Expt 1 but about 25% higher than that in Expt 3; the amount of large feed particles in the faeces was increased compared with Expt 1 ( + 49%) and Expt 3 ( + 76%). In at least two sheep, abomasal emptying was inhibited during Expt 2, as indicated by an enlarged impacted abomasum. In conclusion, the results emphasize the central role of reticular motility for the separation of particles in the forestomach, the outflow of digesta from the reticulo-rumen and transpyloric digesta flow.

Keywords

ReticulumDigesta passage rateMotilityAbomasum
Type
Animal Nutrition
Information
British Journal of Nutrition , Volume 78 , Issue 1 , July 1997 , pp. 97 - 110
Copyright
Copyright © The Nutrition Society 1997

References

REFERENCES

Binnerts, W. T., van't Klooster, A. T. & Frens, A. M. (1968). Soluble chromium indicator measured by atomic absorption in digestion experiments. Veterinary Record 87, 470.Google Scholar
Blood, D. C. & Radostits, O. M. (1989). Vagus indigestion. Veterinary Medicine, 7th ed., 259–262. London: Baillière Tindall.Google Scholar
Braun, U., Steiner, A. & Kaegi, B. (1990). Clinical, haematological and biochemical findings and the results of treatment in cattle with acute functional pyloric stenosis. Veterinary Record 126, 107–110.Google ScholarPubMed
Campling, R. C. & Freer, M. (1962). The effect of specific gravity and size on the mean retention time of inert particles in the alimentary tract of the cow. British Journal of Nutrition 16, 507–518.CrossRefGoogle ScholarPubMed
DesBordes, C.K. & Welch, J.G. (1984). Influence of specific gravity on rumination and passage of indigestible particles. Journal of Animal Science 59, 471–475.CrossRefGoogle Scholar
Ehle, F. R. & Stem, M. D. (1986). Influence of particle size and density on particulate passage through alimentary tract of Holstein heifers. Journal of Dairy Science 69, 564–568.CrossRefGoogle Scholar
Ehrlein, H. J. (1980). Forestomach motility in ruminants. Publications to Scientific Films. Series 5, Nr. 9/C 1328. Göttingen: Institute for Scientific Films.Google Scholar
Evans, E. W., Pearce, G. R., Burnett, J. & Pillinger, S. L. (1973). Changes in some physical characteristics of the digesta in the reticulorumen of cows fed once daily. British Journal of Nutrition 29, 357–376.CrossRefGoogle ScholarPubMed
Faichney, G. J. (1986). The kinetics of particulate matter in the rumen. In Control of Digestion and Metabolism in Ruminants, pp. 173–195 [Milligan, L. P., Grovum, W. L. & Dobson, A. editors]. Englewood Cliffs, NJ: Prentice Hall.Google Scholar
Faichney, G. J. & Gherardi, S. G. (1986). Relationships between organic matter digestibility, dry-matter intake and solute mean retention times in sheep given a ground and pelleted diet. Journal of Agricultural Science, Cambridge 106, 219–222.CrossRefGoogle Scholar
Forbes, J. M. (1995). Physical limitation of feed intake in ruminants and its interactions with other factors affecting intake. In Ruminant Physiology: Digestion, Metabolism, Growth and Reproduction, pp. 217–232 [Engelhardt, W. V., Leonhard-Marek, S., Breves, G. & Giesecke, D., editors]. Stuttgart: Ferdinand Enke Verlag.Google Scholar
Grovum, W. L. (1979). Factors affecting the voluntary intake of food by sheep. 2. The role of distension and tactile input from compartments of the stomach. British Journal of Nutrition 42, 425–436.CrossRefGoogle ScholarPubMed
Harmeyer, J. & Michalowski, T. (1981). A technique for the collection of reticular effluent of sheep. Journal of Veterinary Medicine 38A, 107–114.Google Scholar
Hoflund, S. (1940). Untersuchungen über Störungen der Funktion der Wiederkäuermägen durch Schädigungen des N. vagus verursacht (Investigations of dysfunctions of the ruminant stomach caused by damage to the vagus nerve). Svensk Veterinärtidskrift 45, Suppl.Google Scholar
Hooper, A.P. & Welch, J. G. (1985). Change of functional specific gravity of forages in various solutions. Journal of Dairy Science 68, 1652–1658.CrossRefGoogle Scholar
Hydén, J. E. (1955). A turbidimetric method of the determination of higher polyethylene glycols in biological material. Kungliga Lantbrukshögskolans Annaler 22, 139–145.Google Scholar
Jandel Corporation(1993). SIGMASTAT Version 1.01. San Rafael, CA: Jandel Corporation.Google Scholar
Kaske, M. & Engelhardt, W. V. (1990). The effect of size and density on mean retention time of particles in the gastrointestinal tract of sheep. British Journal of Nutrition 63, 457–465.CrossRefGoogle ScholarPubMed
Kaske, M., Hatiboglu, S. & Engelhardt, W. V. (1992). The influence of density and size of particles on rumination and passage from the reticulo-rumen of sheep. British Journal of Nutrition 67, 235–244.CrossRefGoogle ScholarPubMed
Kaske, M., Midasch, A. & Rehage, J. (1994). Sonographic investigation of reticular contractions in healthy sheep, cows and goats and in cows with traumatic reticulo-peritonitis. Journal of Veterinary Medicine 41A, 748–756CrossRefGoogle Scholar
Lechner-Doll, M., Kaske, M. & Engelhardt, W. V. (1991). Factors affecting the mean retention time of particles in the forestomach of ruminants and camelids. In Physiological Aspects of Digestion and Metabolism in Ruminants, pp. 455–482 [Tsuda, T., Sasaki, Y. & Kawashima, S., editors]. San Diego: Academic Press.CrossRefGoogle Scholar
Malbert, C. H. & Ruckebusch, Y. (1988). Gastroduodenal motor activity associated with gastric emptying rate in sheep. Journal of Physiology 401, 227–239.CrossRefGoogle ScholarPubMed
Malbert, C. H. & Ruckebusch, Y. (1989). Hyperphagia induced by pylorectomy in sheep. Physiology and Behavior 45, 495–499.CrossRefGoogle ScholarPubMed
Mathison, G.W., Okine, E.K., Vaage, A.S., Kaske, M. & Milligan, L.P. (1995). Current understanding of the contribution of the propulsive activities in the forestomach to the flow of digesta. In Ruminant Physiology: Digestion, Metabolism, Growth and Reproduction, pp. 24–41 [Engelhardt, W. V., Leonhard-Marek, S., Breves, G. & Giesecke, D., editors]. Stuttgart: Ferdinand Enke Verlag.Google Scholar
Mudgal, V. D., Dixon, R. M., Kennedy, P. M. & Milligan, L. P. (1982). Effect of two intake levels on retention time of liquid, particle and microbial markers in the rumen of sheep. Journal of Animal Science 54, 1051–1055.CrossRefGoogle Scholar
Nehring, K. (1960). Agrikulturchemische Untersuchungsmethoden (Agricultural Chemical Examination Methods), 3rd ed. Hamburg and Berlin: P. Parey.Google Scholar
Nocek, J. E. & Kohn, R. A. (1986). Initial particle form and size on change in functional specific gravity of alfalfa and timothy hay. Journal of Dairy Science 70, 1850–1863.CrossRefGoogle Scholar
Okine, E. K. & Mathison, G.W. (1991). Reticular contraction attributes and passage of digesta from the ruminoreticulum in cattle fed roughage diets. Journal of Animal Science 69, 2177–2186.CrossRefGoogle ScholarPubMed
Pröve, J. & Ehrlein, H. J. (1982). Motor function of gastric antrum and pylorus for evacuation of low and high viscosity meals in dogs. Gut 23, 150–156.CrossRefGoogle ScholarPubMed
Rebhun, W. C., Fubini, S. L. & Timothy, T. K. (1988). Vagus indigestion in cattle: clinical features, causes, treatments, and long term follow up of 112 cases. Compendium of Continuing Education in Veterinary Practice 10, 387–391.Google Scholar
Rehage, J., Kaske, M., Stockhofe-Zunvieden, N. & Yalcin, E. (1995). Evaluation of the pathogenesis of vagus indigestion in cows with traumatic reticuloperitonitis. Journal of the American Veterinary Medical Association 207, 1607–1611.CrossRefGoogle ScholarPubMed
Reid, A. M. & Titchen, D. A. (1988). Atropine-resistant secretoly responses of the ovine parotid gland to reflex and direct parasympathetic stimulation. Quarterly Journal of Experimental Physiology 73, 413–424.CrossRefGoogle ScholarPubMed
Russell, J. & Bass, P. (1985). Canine gastric emptying of fiber meals: influence of meal viscosity and antroduodenal motility. American Journal of Physiology 249, G662–G667.Google ScholarPubMed
Siciliano-Jones, J. & Murphy, M. R. (1986). Passage of inert particles varying in length and specific gravity through the postruminal digestive tract of steers. Journal of Dairy Science 69, 2304–2311.CrossRefGoogle ScholarPubMed
Stöber, M. & Serrano, S. (1984). Der grobsinnliche Kotbefund beim Rind (Gross findings in bovine faeces). Veterinärmedizinische Nachrichten 4, 353–371.Google Scholar
Sutherland, T. M. (1988). Particle separation in the forestomachs of sheep. In Aspects of Digestive Physiology in Ruminants, pp. 43–73 [Dobson, A., editor]. Ithaca: Cornell University Press.Google Scholar
Thielemans, M. F., Francois, E., Bodart, C. & Thewis, A. (1978). Mesure du transit gastrointestinal chez le porc à l'aide des radiolanthanides. Comparaison avec le mouton. (Gastrointestinal transit in the pig: measurement using radioactive lanthanides and comparison with sheep.) Annales de Biologie Animale, Biochimie, Biophysique 18, 237–247.CrossRefGoogle Scholar
Ulyatt, M. J., Dellow, D. W., John, A., Reid, C. S. W. & Waghorn, G. C. (1986). Contribution of chewing during eating and rumination to the clearance of digesta from the ruminoreticulum. In Control of Digestion and Metabolism in Ruminants, pp. 498–515 [Milligan, L. P., Grovum, W. L. & Dobson, A., editors]. Englewood Cliffs, NJ: Prentice Hall.Google Scholar
Waghorn, G. C., Reid, C. S. W., Ulyatt, M. J. & John, A. (1986). Feed comminution, particle composition and distribution between the four compartments of the stomach in sheep fed chaffed lucerne hay at two feeding frequencies and intake levels. Journal of Agricultural Science Cambridge 106, 287–296.CrossRefGoogle Scholar