Hostname: page-component-cb9f654ff-pvkqz Total loading time: 0 Render date: 2025-08-23T02:54:36.415Z Has data issue: false hasContentIssue false
  • English
  • Français

The growth of lambs grazing tall fescue receiving high and low levels of nitrogen fertilizer

Published online by Cambridge University Press:  27 March 2009

R. C. Grimes
R. C. Grimes
Affiliation:
Department of Agronomy, University of New England, Armidale, N.S. W.
Get access Rights & Permissions [Opens in a new window]

Extract

1. The growth of lambs grazing tall fescue pastures, receiving high and low levels of nitrogen fertilizer, was studied.

2. fertilizer, was studied. final body composition was estimated. Rumen liquor samples were collected three times and herbage intake estimated five times during the 88-day experiment.

3. On clipped herbage samples, O.M. digestibility was estimated in vitro, and chemical composition was determined.

4. Live-weight gain, final body composition and D.o.m. intake did not differ significantly between treatments. Molar proportions of acetic acid were higher and n-butyric acid lower on the high nitrogen treatment.

Information

Type
Research Article
Information
The Journal of Agricultural Science , Volume 69 , Issue 1 , August 1967 , pp. 33 - 41
Copyright
Copyright © Cambridge University Press 1967

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable

References

Armstrong, D. G., Blaxter, K. L., Graham, N. McC. & Walnman, F. W. (1958). The utilization of the energy of two mixtures of steam volatile fatty acids by fattening sheep. Br. J. Nutr. 12, 177–88.CrossRefGoogle ScholarPubMed
Blaser, R. E. (1964). Symposium on forage utilization: effects of fertility levels and stage of maturity on forage nutritive value. J. Anim. Sci. 23, 246–53.CrossRefGoogle Scholar
Blaxter, K. L. (1962). The Energy Metabolism of Ruminants. Hutchinson. London:Google Scholar
Blaxter, K. L. (1964). Utilization of the metabolisable energy of grass. J. Br. Grassld Soc. 19, 90–9.CrossRefGoogle Scholar
Blaxter, K. L., Wainman, F. W. & Wilson, R. S. (1961). The regulation of food intake by sheep. Anim. Prod. 3, 51–61.Google Scholar
Bryant, A.M. & Ulyatt, M. J. (1965). Effects of nitrogenous fertilizer on the chemical composition of short-rotation ryegrass and its subsequent digestion by sheep. N.Z. Jl agric. Res. 8, 109–17.CrossRefGoogle Scholar
Cameron, C. D. T. (1965). Effects of nitrogen fertilizer application rates to grass pastures on lamb gains and herbage yields. Can. J. Anim. Sci. 45, 79—83.CrossRefGoogle Scholar
Corbett, J. L. (1966). International Encyclopaedia of Food and Nutrition, 17. Oxford: Pergamon Press. (In the Press).Google Scholar
Eastoe, J. E. & Pollard, A. G. (1950). A modified phenoldisulphonic acid method for determining nitrates in soil extracts, etc. J. Sci. Fd Agric. 1, 266–9.CrossRefGoogle Scholar
Ferguson, W. S. (1948). The effect of late nitrogenous top-dressing on the digestibility of hay. J. agric. Sci., Camb. 38, 33–6.Google Scholar
Ferguson, W. S. (1963). Animal Health, Production and Pastures, p. 92–127. Ed. Worden, A. N., Sellers, K. C. and Tribe, D. E.. London: Longmans.Google Scholar
Grimes, R. C. (1966). An estimate of the energy required for maintenance and gain by young grazing sheep. J. agric. Sci., Camb. 66, 211–15.CrossRefGoogle Scholar
Grimes, R. C., Watkin, B. R.Gallagher, J. R. (1967). The growth of lambs grazing on perennial ryegrass, tall fescue and cocksfoot, with and without white clover, as related to the botanical and chemical composition of the pasture and pattern of fermentation in the rumen. J. agric. Sci., Camb. 68, 11—21.Google Scholar
Hodgson, J. & Spedding, C. R. W. (1962). A study of the health and performance of calves reared on herbage grown with and without high nitrogen inputs. Exps Prog. Qrassld Res. Improv. Stn 15, 53–6.Google Scholar
Hodgson, J. & Spedding, C. R. W. (1963). A study of the health and performance of calves grazing a pure ryegrass sward receiving three levels of nitrogen input. Exps Prog. Grassld Res. Improv. Stn 16, 71–2.Google Scholar
Jones, D. I. H., Ap Griffith, G. & Walters, R. J. K. (1961). The effect of nitrogen fertilizer on the water soluble carbohydrate content of perennial ryegrass and cocksfoot. J. Br. Orassld Soc. 16, 272–75.Google Scholar
Jones, D. I. H., Ap Griffith, G. & Walters, R. J. K. (1965). The effect of nitrogen fertilizers on the water soluble carbohydrate content of grasses. J. agric. Sci., Camb. 64, 323–28.Google Scholar
Kleiber, M. (1961). The fire of Life. New York: Wiley.Google Scholar
Large, R. V. & Spedding, C. R. W. (1962). The health and performance of lambs grazing a perennial ryegrass pasture receiving nitrogen and irrigation. Exps Prog. Orassld Res. Improv. Stn 15, 52–3.Google Scholar
Large, R. V. & Spedding, C. R. W. (1963). The health and performance of lambs grazing a perennial ryegrass pasture receiving nitrogen and irrigation. Exps Prog. Orassld Res. Improv. Stn 16, 70–1.Google Scholar
Lewis, D. (1951). The metabolism of nitrate and nitrite in the sheep. I. The reduction of nitrate in the rumen of the sheep. Biochem. J. 48, 175—9.Google Scholar
Poulton, B. R., Maodonald, G. J. & Van Der Noot, G. W. (1957). The effect of nitrogen fertilization on the nutritive value of orchard-grass hay. J. Anim. Sci. 16, 462–6.CrossRefGoogle Scholar
Reid, J. T., Kennedy, W. K., Turk, K. L., Slack, S. T., Trimberger, G. W. & Murphy, R. P. (1959). Effect of growth stage, chemical composition, and physical properties upon the nutritive value of forages, J. Dairy Sci. 42, 567–71.CrossRefGoogle Scholar
Reid, R. L. & Jung, G. A. (1965). Influence of fertilizer treatment on the intake, digestibility and palatability of tall fescue hay. J. Anim. Sci. 24, 615–25.CrossRefGoogle ScholarPubMed
Reid, R. L., Jung, G. A. & Murray, S. (1964). The measurement of nutritive quality in a bluegrass pasture using in vivo and in vitro techniques. J. Anim. Sci. 23, 700–10.Google Scholar
Seerley, R. W., Emeeick, R. J., Embry, L. B. & Olson, O. E. (1965). Effect of nitrate or nitrite administered continuously in drinking water for swine and sheep. J. Anim. Sci. 24, 1014–19.Google Scholar
Thomson, D. J. (1962). Measurement of the net retention of energy from herbage feeds. Exps Prog. Orassld Res. Improv. Stn 15, 48–9.Google Scholar
Thomson, D. J. (1963). Measurement of the net retention of energy from herbage feeds. Exps Prog. Orassld Res. Improv. Stn 16, 67–8.Google Scholar
Thomson, D. J. (1964). Proc. 3rd Symposium on Energy Metabolism, E.A.A.P. Publ. No. 11, 319–26.Google Scholar
Tilley, J. M. A. & Terry, R. A. (1963). A two-stage technique for the in vitro digestion of forage crops. J. Br. Orassld Soc. 18, 104–11.CrossRefGoogle Scholar