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Herbage allowance and intake of cattle

Published online by Cambridge University Press:  27 March 2009

C. T. Dougherty ,
L. M. Lauriault ,
P. L. Cornelius  and
N. W. Bradley
C. T. Dougherty
Affiliation:
Department of Agronomy, University of Kentucky, Lexington, KY, USA
L. M. Lauriault
Affiliation:
Department of Agronomy, University of Kentucky, Lexington, KY, USA
P. L. Cornelius
Affiliation:
Departments of Agronomy and Statistics, University of Kentucky, Lexington, KY, USA
N. W. Bradley
Affiliation:
Department of Animal Sciences, University of Kentucky, Lexington, KY 40546, USA
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Summary

Rates of intake of herbage and grazing time of beef cattle are essential components of simulation models of grassland agroecosystems. We studied the effects of herbage allowance on rates of intake and ingestive behaviour of twelve 2-year-old Angus heifers (Bos taurus)(364 ± 12 kg) grazing pastures of tall fescue (Festuca arundinacea Schreb.). A balanced change-over design and a novel tethering technique were used to estimate direct, residual and permanent effects of three herbage allowances on intake per bite, rate of biting and rate of intake. Herbage dry matter (D.M.) allowances, which were established by varying tether lengths, were 5, 9 and 13 kg (1·4, 2·5 and 3·6 kg/100 kg of live weight) and made available in circular plots of 15, 27 and 38 m2, respectively, for a single measured 2 h grazing session each day. Heifers grazing Kenhy tall fescue swards, composed of vegetative tillers and free from the endophyte Acremonium coenophialum, with herbage D.M. masses (> 5 cm) of 2000 kg/ha and D.M. allowances of 9 and 13 kg/2 h per heifer, ingested D.M. at 1·9 kg/h by taking bites averaging 800 mg D.M. at 38 bites/min. Allowances of 5 kg/2 h per heifer slowed the rate of intake to 1·3 kg/h by limiting D.M. intake per bite to 654 mg and biting rate to 35/min. Rate of D.M. intake of cattle grazing vegetative temperate grass swards appears to be ca. 0.5% of live weight per hour when allowance and availability of herbage are not limiting.

Type
Review
Information
The Journal of Agricultural Science , Volume 112 , Issue 3 , June 1989 , pp. 395 - 401
Copyright
Copyright © Cambridge University Press 1989

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References

Alder, F. E. & Minson, D. J. (1963). The herbage intake of cattle grazing lucerne and cocksfoot pastures. Journal of Agricultural Science, Cambridge 60, 359–369.Google Scholar
Bacon, C. W., Lyons, P. C, Porter, J. K. & Robbins, J. D. (1986). Ergot toxicity from endophyte-infected grasses: a review. Agronomy Journal 78, 106–116.CrossRefGoogle Scholar
Barthram, G. T. & Grant, S. A. (1984). Defoliation of ryegrass-dominated swards by sheep. Grass and Forage Science 39, 211–219.CrossRefGoogle Scholar
Berenblut, I. I. (1964). Change-over designs with complete balance for first residual effects. Biometrics 20, 707–712.Google Scholar
Berenblut, I. I. (1967). The analysis of change-over designs with complete balance for first residual effects. Biometrics 23, 578–580.Google Scholar
Brown, M. A., Smith, E. M. & Tharel, L. M. (1985). Evaluation and verification of simulation models. In Simulation of Forage and Beef Production in the Southern Region (Eds Watson, V. W. & Wells, C. M.), Southern Cooperative Series Bulletin 308, pp. 126–130. Mississippi: Mississippi State University.Google Scholar
Burns, J. C., Giesbrecht, F. G., Harvey, K. W. & Linnerud, A. C. (1983). Central Appalachian hill land pasture evaluation using cows and calves. I. Ordinary and generalized least squares analysis for an unbalanced grazing experiment. Agronomy Journal 75, 865–871.CrossRefGoogle Scholar
Chacon, E. A. & Stobbs, T. H. (1976). Influence of progressive defoliation of a grass sward on the eating behaviour of cattle. Australian Journal of Agricultural Research 27, 709–727.Google Scholar
Dougherty, C. T., Bradley, N. W., Cornelius, P. L. & Lauriault, L. M. (1987). Herbage intake rates of beef cattle grazing alfalfa. Agronomy Journal 79, 1003–1008.Google Scholar
Dougherty, C. T., Gay, N., Loewer, O. J. & Smith, E. M. (1985). Overview of modeling for forage and beef production. In Simulation of Forage and Beef Production in the Southern Region (Eds Watson, V. H. & Wells, C. M.), Southern Cooperative Series Bulletin 308, pp. 3–8. Mississippi: Mississippi State University.Google Scholar
Forbes, T. D. A. 1988. Researching the plant–animal interface: the investigation of ingestive behavior in grazing animals. Journal of Animal Science 66, 2369–2379.CrossRefGoogle ScholarPubMed
Forbes, T. D. A. & Hodgson, J. (1985). Comparative studies of the influence of sward conditions on the ingestive behaviour of cows and sheep. Grass and Forage Science 40, 69–77.CrossRefGoogle Scholar
Forbes, T. D. A., Smith, E. M., Razor, R. B., Dougherty, C. T., Allen, V. G., Erlinger, L. L., Moore, J. E. & Rouquette, F. M. Jr, (1985). The plant–animal interface. In Simulation of Forage and Beef Production in the Southern Region (Eds Watson, V. H. & Wells, C. M.), Southern Cooperative Series Bulletin 308, pp. 95–116. Mississippi: Mississippi State University.Google Scholar
Gill, J. L. (1978). Design and Analysis of Experiments in the Animal and Medical Sciences Vol. 2. Ames: Iowa State University Press.Google Scholar
Hodgson, J. (1982 a). Ingestive behaviour. In Herbage Intake Handbook (Ed. Leaver, J. D.), pp. 113–118. Maidenhead: The British Grassland Society.Google Scholar
Hodgson, J. (1982 b). Influence of sward characteristics on diet selection and herbage intake by the grazing animal. In Nutritional Limits to Animal Production from Pastures (Ed. Hacker, J. B.), pp. 153–156. Farnham Royal: Commonwealth Agricultural Bureaux.Google Scholar
Hodgson, J. & Jamieson, W. S. (1981). Variations in herbage mass and digestibility, and the grazing behaviour and herbage intake of adult cattle and weaned calves. Grass and Forage Science 36, 39–48.Google Scholar
Holder, J. M. (1962). Supplementary feeding of grazing sheep – its effect on pasture intake. Proceedings of the Australian Society of Animal Production 4, 154–159.Google Scholar
Jameson, D. A. (1986). What shall we do about grazing systems studies? Rangelands 8, 178–179.Google Scholar
Jamieson, W. S. & Hodgson, J. (1979). The effects of daily herbage allowance and sward characteristics upon the ingestive behaviour and herbage intake of calves under strip-grazing management. Grass and Forage Science 34, 261–271.CrossRefGoogle Scholar
Loewer, O. J., Butts, W., Coleman, S. W., Erlinger, L. L., Essig, H. W., Fontenot, J. P., Gay, N., Linnerud, A. C., Long, C., Muntifering, R., Oltjen, J., St. Louis, D. G., Stuedemann, J. A., Taul, K. & Turner, L. (1985). The animal component. In Simulation of Forage and Beef Production in the Southern Region (Eds Watson, V. H. & Wells, C. M.), Southern Cooperative Series Bulletin 308, pp. 37–94. Mississippi: Mississippi State University.Google Scholar
Matches, A. G., Martz, F. A., Sleper, D. A. & Krysowty, M.T. (1981). Selecting levels of herbage allowance to compare forages for animal performance. In Forage Evaluation: Concepts and Techniques (Eds Wheeler, J. L. & Mochrie, R. D.), pp. 331–339. Melbourne: SIRO-American Forage and Grassland Council.Google Scholar
Meijs, J. A. C., Walters, J. K. & Keen, A. (1982). Sward methods. In Herbage Intake Handbook (Ed. Leaver, J. D.), pp. 11–36. Hurley: The British Grassland Society.Google Scholar
Minson, D. J. (1983). Forage quality: assessing the plantanimal complex. In Proceedings of the 14th International Grassland Congress, Lexington (Eds Smith, J. A. & Hays, V. W.), pp. 25–29. Boulder: Westview Press.Google Scholar
Quenouille, M. H. (1953). The Design and Analysis of Experiments. London: Charles Griffin & Co. Ltd.Google Scholar
Sheldrick, R. D., Lavender, R. H., Teson, V. J. & Cobby, J. M. (1985). The effect on annual dry matter yield of using a hand-controlled mower or a plot harvester for cutting herbage on small plot trials. Grass and Forage Science 40, 103–107.Google Scholar
Siegel, M. R., Latch, G. C. M. & Johnson, M. C. (1987). Fungal endophytes of grasses. Annual Review of Phytopathology 25, 293–315.Google Scholar
Spreen, T. H. & Laughlin, D. H. (1986). Simulation of Beef Cattle Production Systems and its Use in Economic Analysis. Westview Special Studies in Agricultural Science and Policy. Boulder: Westview Press.Google Scholar
Waldo, D. R. (1986). Effect of forage quality on intake and forage-concentrate interactions. Journal of Dairy Science 69, 617–631.Google Scholar