Hostname: page-component-7bb8b95d7b-cx56b Total loading time: 0 Render date: 2024-09-07T06:14:25.206Z Has data issue: false hasContentIssue false
  • English
  • Français

Studies in the evaluation of pasture quality with young grazing sheep:Observations on wool production, carcass appraisal and reticulo-ruminal characteristics

Published online by Cambridge University Press:  27 March 2009

J. R. Gallagher  and
B. R. Watkin
J. R. Gallagher
Affiliation:
Department of Agronomy, University of New England, Armidale, N.S.W. Australia
B. R. Watkin
Affiliation:
Department of Agronomy, University of New England, Armidale, N.S.W. Australia
Get access Rights & Permissions [Opens in a new window]

Extract

1. The rate of clean wool production, carcass apparisal and reticulo-ruminal development of grazing sheep were used to evaluate differences in pasture quality. Perennial ryegrass, cocksfoot and tall fescue pastures were assessed as pure stands and also white clover.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 68 , Issue 1 , February 1967 , pp. 87 - 93
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.)

References

REFERENCES

Arnold, G. W. & McManus, W. R. (1960). The effect of level of stocking on two pasture types upon wool production and quality. Proc. Aust. Soc. Anim. Prod. 3, 63–8.Google Scholar
Armstrong, D. G. & Blaxter, K. L. (1957). The utilization of acetic, propionic and butyric acids by fattening sheep. Br. J. Nutr. 11, 413–25.CrossRefGoogle ScholarPubMed
Barcroft, J., McAnally, R. A. & Phillipson, A. T. (1944). Absorption of volatile acids from the alimentary tract of the sheep and other animals. J. exp. Biol. 20, 120–9.CrossRefGoogle Scholar
Brownlee, A. (1956). The development of rumen papillae in cattle fed on different diets. Br. vet. J. 112, 369–75.CrossRefGoogle Scholar
Clarke, E. A. & McMeekan, C. P. (1952). New Zealand lamb and mutton. N.Z. Jl Sci. Tech. A33, 7–15.Google Scholar
Clunies, Ross I., Graham, N. P., Turner, H. N., Carter, H. B. & Munz, H. (1937). The grazing of sheep on improved pastures. Its effect on superfine wool. C.S.I.R. Aust. Pamph. no. 71.Google Scholar
Coop, I. E. & Hart, D. S. (1953). Environmental factors affecting wool growth. Proa. N.Z. Soc. Anim. Prod. 13, 113–19.Google Scholar
Daly, R. A. & Carter, H. B. (1955). The fleece growth of young Lincoln, Corriedale, Polwarth and fine Merino maiden ewes under housed conditions and unrestricted and progressively restricted feeding on a standard diet. Aust. J. agric. Res. 6, 476–513.CrossRefGoogle Scholar
Dumaresq, J. A. (1940). Effects of improved pasture on superfine Merino wool. J. Dep. Agric. Tasmania, 11, 1–10.Google Scholar
Duncan, D. B. (1955). Multiple range and multiple F tests. Biometrics 11, 1–42.CrossRefGoogle Scholar
Ferguson, K. A. (1959). Influence of dietary protein percentage on growth of wool. Nature, Lond. 184, 907.CrossRefGoogle Scholar
Ferguson, K. A., Carter, H. B. & Hardy, M. H. (1949). Studies of comparative fleece growth in sheep. 1. The quantitative nature of inherent differences in wool growth rate. Aust. J. scient. Res. B2, 42–81.Google Scholar
Freer, M. (1963–1964). The effect of volatile fatty acids on wool production. C.S.I.R.O. Aust. Ann. Rep. Plant Industry, pp. 166–7.Google Scholar
Gallagher, J. R., Watkin, B. R. & Grimes, R. C. (1966). An evaluation of pasture quality with young grazing sheep. 1. Live-weight growth and clean wool production. J. agric. Sci., Camb. 66, 107–11.CrossRefGoogle Scholar
Grimes, R. C., Watkin, B. R. & Gallagher, J. R. (1967). The growth of lambs grazing on perennial ryegrass, tall fescues 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. (in the Press).CrossRefGoogle Scholar
Hammond, J. (1937). Cited by Starke & Joubert (1961).Google Scholar
Hirzel, R. (1939). Factors affecting quality of mutton and beef with special reference to the proportions of muscle, fat andbone. Onderstepoort, J. vet. Sci. Anim. Ind. 12, 379–550.Google Scholar
Johns, A. T., Ulyatt, M. J. & Glenday, A. C. (1963). Pasture type in relation to live-weight gain, carcass composition, iodine nutrition, and some rumen characteristics of sheep. IV. Some rumen characteristics of the sheep. J. agric. Sci., Camb. 61, 201–7.CrossRefGoogle Scholar
Marston, H. R. (1948). Nutritional factors involved in wool production by Merino sheep. 1. The influence of fodder intake on the rate of wool growth. Aust. J. scient. Res. B1, 362–75.Google Scholar
McLean, J. W., Thomson, G. C., Iversen, C. E., Jagusch, K. T. & Lawson, B. M. (1962). Sheep production and health on pure species pastures. Proc. N.Z. Grassld Ass. pp. 1–14.CrossRefGoogle Scholar
McManus, W. R., Arnold, G. W. & Dudzinski, M. L. (1966). Studies in the wool production of grazing sheep. 4. Variation between sheep in intake, wool production and efficiency. Aust. J. exp. Agric. Anim. Husb. 6, 96–100.CrossRefGoogle Scholar
Pálsson, H. (1939). Meat qualities in the sheep with special reference to Scottish breeds and crosses. J. agric. Sci., Camb. 29, 544–626.CrossRefGoogle Scholar
Phillipson, A. T. (1958). Digestion in the ruminant. N.A.A.S. q. Rev. No. 40, 1–11.Google Scholar
Robinson, T. J., Binet, F. E. & Doig, A. G. (1956). Fat lamb studies in Victoria. 1. An assessment of the relative values of various external measurements for differentiating between various grades of export lamb carcasses. Aust. J. agric. Res. 7, 345–65.CrossRefGoogle Scholar
Rudall, K. M. (1955). The size and shape of the papilla in wool follicles. Proc. int. wool Text. Res. Conf. Aust. F, 9–25.Google Scholar
Sander, E. G., Warner, R. G., Harrison, H. N. & Loosli, J. K. (1959). The stimulatory effect of sodium butyrate and sodium propionate on the development of the rumen mucosa in the young calf. J. Dairy Sci. 42, 1600–5.CrossRefGoogle Scholar
Smith-Pilling, S. H. & Barton, R. A. (1954). Overfat ewe mutton is a serious problem. N.Z. Jl Agric. 88, 98–102.Google Scholar
Starke, J. S. & Joubert, D. M. (1961). A score card for lamb and mutton carcasses. J. agric. Sci., Camb. 57, 319–23.CrossRefGoogle Scholar
Tamate, H., McGilliard, A. D., Jacobson, N. L. & Getty, R. (1962). Effect of various dietaries on the anatomical development of the stomach in the calf. J. Dairy Sci. 45, 408–20.CrossRefGoogle Scholar
Tayler, J. C. (1964). The relationship between growth and carcass quality in cattle and sheep. A review. Emp. J. exp. Agric. 32, 191–204.Google Scholar
Thwaites, C. J., Yeates, N. T. M. & Pogue, R. F. (1964). Objective appraisal of intact lamb and mutton carcasses. J. agric. Sci., Camb. 63, 415–20.CrossRefGoogle Scholar
Weber, A. D. (1931). The effect of plane of nutrition on wool growth. Proc. Am. Soc. Anim. Prod. pp. 228–30.Google Scholar
Williams, O. B. & Schinckel, P. G. (1962). Seasonal variations in wool growth and liveweight in several environments. Proc. Aust. Soc. Anim. Prod. 4, 38–45.Google Scholar
Yeates, N. T. M. (1952). The quantitative definition of cattle carcasses. Aust. J. agric. Res. 3, 68–94.CrossRefGoogle Scholar
Yeates, N. T. N. (1959). Slide rule for judging and grading beef carcasses. J. Aust. Inst. agric. Sci. 25, 302–4.Google Scholar