Hostname: page-component-cd9895bd7-jkksz Total loading time: 0 Render date: 2024-12-25T03:02:13.040Z Has data issue: false hasContentIssue false
  • English
  • Français

Sulphur as a nutrient for Merino sheep

2.* The utilization of sulphur in forage diets

Published online by Cambridge University Press:  09 March 2007

J. P. Langlands ,
H. A. M. Sutherland  and
M. J. Playne
J. P. Langlands
Affiliation:
CSIRO, Division of Animal Physiology Pastoral Research Laboratory, Armidale, NSW 2350, Australia
H. A. M. Sutherland
Affiliation:
CSIRO, Division of Animal Physiology Pastoral Research Laboratory, Armidale, NSW 2350, Australia
M. J. Playne
Affiliation:
CSIRO, Division of Tropical Agronomy, Pastoral Research Laboratory, Townsville, Queensland 4810, Australia
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

1. Estimates of sulphur retention by Merino sheep during growth, pregnancy and wool production, and of S excretion during lactation were obtained to derive estimates of the S requirements of Merino sheep.

2. The S content of fifty Merino sheep was related by weighted regression analysis to age, live weight and (age × live weight). The quantity of S stored was calculated for varying rates of live-weight gain in sheep differing in age and live weight.

3. The S contents of twenty-five samples of foetus, foetal membranes and uteruses were determined. Relationships between S content and days from mating were calculated, and differentiated to give daily net changes in S content during pregnancy.

4. Milk production of twenty-seven Merino ewes was estimated on eight to ten occasions at approximately weekly intervals to the 84th day of lactation. The average S content was 472 mg/l; it increased on average by 1·0 mg/l per d of lactation. The mean S content of ninety-seven samples of wool averaged 34 g S/kg clean dry wool.

5. It was concluded that wool represented the major demand for S by the Merino since approximately 70 g S were secreted in producing 2 kg clean wool, 50 g S in a lactation yielding 100 l milk and 8 g S in giving birth to a single lamb.

Type
General Nutrition
Information
British Journal of Nutrition , Volume 30 , Issue 3 , November 1973 , pp. 537 - 543
Copyright
Copyright © The Nutrition Society 1973

References

Agricultural Research Council (1965). The Nutrient Requirements of Farm Livestock. No. 2. Ruminants. London: Agricultural Research Council.Google Scholar
Barrow, N. J. & Lambourne, L. J. (1962). Aust. J. agric. Res. 13, 461.Google Scholar
Bird, P. R. (1972 a). Aust. J. biol. Sci. 25, 195.Google Scholar
Bird, P. R. (1972 b). Aust. J. biol. Sci. 25, 817.Google Scholar
Draper, N. R. & Smith, H. (1966). Applied Regression Analysis. New York: Wiley.Google Scholar
Elliott, R. C., Reed, W. D. C. & Topps, J. H. (1964). Br. J. Nutr. 18, 519.Google Scholar
Hogan, J. P. & Weston, R. H. (1968). Proc. Aust. Soc. Anim. Prod. 7, 364.Google Scholar
Langlands, J. P., Corbett, J. L., McDonald, I. & Pullar, J. D. (1963). Anim. Prod. 5, 1.Google Scholar
Langlands, J. P. & Sutherland, H. A. M. (1973). Br. J. Nutr. 30, 529.Google Scholar
Mottershead, B. E. (1971). Lab. Pract. 20, 483.Google Scholar
Playne, M. J. & Haydock, K. P. (1972). Aust. J. exp. Agric. Anim. Husb. 12, 365.Google Scholar
Robinson, J. J. & Forbes, T. J. (1966). Br. J. Nutr. 20, 263.Google Scholar
Van Niekerk, B. D. H., Smith, D. W. W. Q. & Oosthysen, D. (1967). Proc. S. Afr. Soc. Anim. Prod. 6, 108.Google Scholar
Walker, D. J. & Nader, C. J. (1968). Appl. Microbiol. 16, 1124.Google Scholar
Walker, D. M. & Faichney, G. J. (1964). Br. J. Nutr. 18, 201.Google Scholar