Hostname: page-component-586b7cd67f-t8hqh Total loading time: 0 Render date: 2024-11-23T06:35:05.258Z Has data issue: false hasContentIssue false
  • English
  • Français

The influence of package size and density on the intake of dried grass wafers fed to lambs

Published online by Cambridge University Press:  02 September 2010

R. M. Tetlow  and
R. J. Wilkins
R. M. Tetlow
Affiliation:
The Grassland Research Institute, Hurley, Berks SL6 5LR
R. J. Wilkins
Affiliation:
The Grassland Research Institute, Hurley, Berks SL6 5LR
Get access

Summary

Wafers made from dried ryegrass were fed to castrated male lambs in two experiments of 40 and 30 days' duration. In the first experiment, wafers of chopped feed were prepared which varied in unit density from 0·7 g/ml to 1·0 g/ml. In the second experiment, coarsely ground forage was passed through a ram press with a die of 5 cm diameter and the extruded material was then split into quarter and half wafers or left unsplit as whole wafers. Voluntary intake was measured throughout each experiment.

For the wafers with density of 1·0 g/ml the daily intake of organic matter was 75 g/kg LW0·75 as compared with 64 g/kg LW0·75 for the wafers with density of 0·7 g/ml but this difference was not significant. There was a significant (P < 0·05) interaction between wafer density and sub-period of the experiment. The daily intake of low-density wafers, expressed in g/kg LW0·75, increased throughout the experiment, whereas that of the higher density wafers did not change.

There was no overall effect of package size on organic matter intake, but the interaction between package size and sub-period of the experiment was significant (P · 0·001). The intake of the whole wafers was initially lower than that for the other treatments, but increased throughout the experiment, whereas the intake of the quarter and half wafers remained steady.

Type
Research Article
Information
Animal Production , Volume 14 , Issue 3 , June 1972 , pp. 335 - 341
Copyright
Copyright © British Society of Animal Science 1972

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

American Society of Agricultural Engineers. 1967. Recommendation A.S.A.E. R.2461. Method of determining modulus of uniformity and modulus of fineness of ground feed. Yb. Am. Soc. agric. Engrs, 1967, p. 301.Google Scholar
Association of Official Agricultural Chemists. 1965. Official Methods of Analysis. Association of Official Agricultural Chemists, Washington, D.C.Google Scholar
Baumgardt, B. R. 1970. Voluntary feed intake by ruminants: models and practical applications. Proc. Cornell Nutrition Conference, 1970, pp. 85–92.Google Scholar
Beardsley, D. W. 1964. Symposium on forage utilisation: nutritive value of forages as affected by physical form. Part II. Beef cattle and sheep studies. J. Anim. Sci. 23: 239–245.CrossRefGoogle Scholar
Church, D. C., Mcarthur, J. A. B. and Fox, C. W. 1961. Effect of several variables on the utilisation of high-roughage pellets by lambs. J. Anim. Sci. 20: 644–647.CrossRefGoogle Scholar
Dobie, J. B., Curley, R. S., Ronning, M. and Parsons, P. S. 1966. Feeding wafered hay. J. Dairy Sci. 45: 969–971.Google Scholar
Esplin, A. L. and Story, C. D. 1957. The effect of size of pellet and of some new rations in the feeding of pellets to lambs. Proc. West. Sect. Am. Soc. Anim. Prod. 8: XXIV.Google Scholar
Haenlein, G. F. N., Richards, C. R. and Mitchell, W. H. 1962. Effect of the size of grind and the level of intake of pelleted alfalfa hay on its nutritive value in cows and sheep. J. Dairy Sci. 45: 693.Google Scholar
Hagedorn, H. C. and Jensen, B. N. 1923. Zur mikrobestimmung des blutzuckers mittels ferricyanid. Biochem. Z. 135: 46–58.Google Scholar
Hutton, G. A. Jr, Ronning, M. and Dobie, J. B. 1964. High- and low-moisture content alfalfa wafers compared to baled hay for milk production. J. Dairy Sci. 47: 156–159.Google Scholar
Lonsdale, C. R. and Tayler, J. C. 1969. The effect of stage of maturity of artificially dried ryegrass and method of processing on the growth of young cattle. Anim. Prod. 11: 273.Google Scholar
Meyer, J. H., Weir, W. C., Dobie, J. B. and Hull, J. L. 1959. Influence of the method of preparation on the feeding value of alfalfa hay. J. Anim. Sci. 18: 976–982.CrossRefGoogle Scholar
Minson, D. J. 1963. The effect of pelleting and wafering on the feeding value of roughage —a review. J. Br. Grassld Soc. 18: 39–44.CrossRefGoogle Scholar
Moore, L. A. 1964. Symposium on forage utilisation: nutritive value of forages as affected by physical form. 1. General principles involved with ruminants and effect of feeding pelleted or wafered forage to dairy cattle. J. Anim. Sci. 23: 230–238.CrossRefGoogle Scholar
Ronning, M. and Dobie, J. B. 1962. Wafered versus baled alfalfa hay for milk production. J. Dairy Sci. 45: 969–971.CrossRefGoogle Scholar
Smith, D., Paulsen, G. M. and Raguse, C. A. 1964. Extraction of total available carbohydrates from grass and legume tissue. PL Physiol., Lancaster 39: 960–962.CrossRefGoogle ScholarPubMed
Tayler, J. C. 1970. Dried forages and beef production. J. Br. Grassld Soc. 26: 180–190.Google Scholar
Tilley, J. M. A. and Terry, R. A. 1963. A two-stage technique for the in vitro digestibility of forage crops. J. Br. Grassld Soc. 18: 105–111.Google Scholar
Weir, W. C., Meyer, J. H., Garrett, W. N., Lofgreen, G. P. and Ittner, N. R. 1959. Chopped rations compared to similar rations fed chopped and ground for steers and lambs. J. Anim. Sci. 18: 805–814.CrossRefGoogle Scholar
Wilkins, R. J., Lonsdale, C. R., Tetlow, R. M. and Forrest, T. J. 1972. The intake and digestibility by calves and sheep of dried grass wafers containing particles of differing size. Anim. Prod. 14: 177–188.Google Scholar