Hostname: page-component-586b7cd67f-t7fkt Total loading time: 0 Render date: 2024-11-26T20:03:37.587Z Has data issue: false hasContentIssue false
  • English
  • Français

An analysis of seasonality of milk production

Published online by Cambridge University Press:  02 September 2010

E. A. Goodall
E. A. Goodall
Affiliation:
Department of Agriculture, Northern Ireland, Newforge Lane, MaloneRoad, Belfast BT9 5PX
Get access

Abstract

The lactation model of Wood, y = Anbe−cn was fitted, using a logarithmic transformation, to two sets of lactation data obtained from the Agricultural Research Institute of Northern Ireland. The first set was from animals calving in the autumn and the second set from animals calving in winter and early spring. A categorical variable was added to the transformed model to investigate the effect on the parameters of the animals going out to grass. The technique proved more useful with the autumn-calving herd.

Type
Research Article
Information
Animal Production , Volume 36 , Issue 1 , February 1983 , pp. 69 - 72
Copyright
Copyright © British Society of Animal Science 1983

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

Wood, P. D. P. 1967. Algebraic model of the lactation curve in cattle. Nature, Lond. 216: 164–165.CrossRefGoogle Scholar
Wood, P. D. P. 1969. Factors affecting the shape of the lactation curve in cattle. Anim. Prod. 11:307–316.Google Scholar
Wood, P. D. P. 1980. Breed variations in the shape of the lactation curve of cattle and their implications for efficiency. Anim. Prod. 31:133–141.Google Scholar
Wood, P. D. P. 1981. A note on regional variations in the seasonality of milk production in dairy cattle. Anim. Prod. 32: 105–108.Google Scholar