Hostname: page-component-78c5997874-t5tsf Total loading time: 0 Render date: 2024-11-03T05:46:35.918Z Has data issue: false hasContentIssue false
  • English
  • Français

The mineral composition of hay and silage grown in Scotland in relation to the A.R.C. standards for the mineral requirements of dairy cattle

Published online by Cambridge University Press:  27 March 2009

R. G. Hemingway ,
A. MacPherson ,
Alison K. Duthie  and
Nora A. Brown
R. G. Hemingway
Affiliation:
Glasgow University Veterinary School, Bearsden, Glasgow
A. MacPherson
Affiliation:
Glasgow University Veterinary School, Bearsden, Glasgow
Alison K. Duthie
Affiliation:
Glasgow University Veterinary School, Bearsden, Glasgow
Nora A. Brown
Affiliation:
Glasgow University Veterinary School, Bearsden, Glasgow
Get access Rights & Permissions [Opens in a new window]

Summary

Samples of hays (132) and silages (146) were analysed for calcium, phosphorus, magnesium, copper and manganese. Assessments were made of their ability to supply minerals to cattle in accordance with the A.R.C. (1965) minimal requirements.

The concentrations of all these minerals were greater in silage than in hay. The proportions of the hay samples which in 20 lb of dry matter, provided inadequate amounts of minerals to maintain cattle of 1100 lb live weight were 4% (Ca), 98% (P),21% (Mg), 90% (Cu) and 39% (Mn). In a similar manner 15 lb of silage dry matter proved inadequate to a comparable degree. For the samples examined 4% (Ca), 99% (P), 19% (Mg), 62% (Cu) and 15% (Mn) did not meet the proposed standards.

Data are presented to indicate the amounts by which a variety of cattle diets based on hay and silage fail to meet the A.R.C. (1965) minimal requirements in respect of calcium and phosphorus intakes for milk yields up to 4 gal.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 71 , Issue 1 , August 1968 , pp. 53 - 59
Copyright
Copyright © Cambridge University Press 1968

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

Agricultural Research Council (1965). The Nutrient Requirements of Farm Livestock No. 2. London: H.M.S.O.Google Scholar
Andrus, S. (1955). Determination of copper in plant material by means of zinc dibenzyldithiocarbamate. Analyst. Land. 80, 514–16.CrossRefGoogle Scholar
Cavell, A. J. (1955). The colorimetric determination of phosphorus in plant materials. J. Sci. Fd Agric. 6, 479–80.CrossRefGoogle Scholar
Cornfield, A. H. & Pollard, A. G. (1950). Use of titan yellow for the determination of magnesium in plant material. J. Sci. Fd Agric. 1, 357–61.CrossRefGoogle Scholar
Fleming, G. A. (1965). Trace elements in plants with particular reference to pasture species. Outl. Agric. 4, 270–85.CrossRefGoogle Scholar
Hemingway, R. G. (1956). The determination of calcium in plant material by flame photometry. Analyst. Lond. 81, 164–8.CrossRefGoogle Scholar
Hemingway, R. G. (1961). Magnesium, potassium, sodium and calcium contents of herbage as influenced by fertiliser treatments over a three-year period. J. Br. Grassld Soc. 16, 106–16.CrossRefGoogle Scholar
Hemingway, R. G. (1962). Copper, molybdenum, manganese and iron contents of herbage as influenced by fertiliser treatments over a three-year period. J. Br. Grassld Soc. 17, 182–7.CrossRefGoogle Scholar
Hignett, S. L. & Hignett, P. G. (1951). The influence of nutrition on reproductive efficiency in cattle. The effect of calcium and phosphorus intake on the fertility of cows and heifers. Vet. Rec. 63, 603–9.Google Scholar
Kirchgessner, M. (1965). The supply and availability of trace elements. Wld Rev. Anim. Prod. 1, 41.Google Scholar
Ling, A. W. & Smith, E. L. (1940). Composition of hay. J. Bath W. sth Cties' Ass. p. 29.Google Scholar
Littlejohn, A. I. & Lewis, G. (1960). Symposium on disorders of calcium metabolism. Experimental studies of the relationship between the calcium-phosphorus ratio of the diet and fertility in heifers: a preliminary report. Vet. Rec. 72, 1137–44.Google Scholar
MacPherson, A. (1966). Studies of copper metabolism in sheep. Ph. D. thesis, University of Glasgow.Google Scholar
Smith, A. M. & Comrie, A. (1948). The composition of Lothians' seed-hay. Scott. Agric. 28, 67.Google Scholar
Willard, H. H. & Greathouse, L. H. (1917). The colorimetric determination of manganese by oxidation with periodate. J. Am. Chem. Soc. 39, 2366–77.CrossRefGoogle Scholar