Hostname: page-component-7479d7b7d-k7p5g Total loading time: 0 Render date: 2024-07-09T13:28:16.454Z Has data issue: false hasContentIssue false
  • English
  • Français

89. Seasonal Variation of the Percentage Butterfat Content of Milk. An Examination of the Results of Certain Individual Cow Tests

Published online by Cambridge University Press:  01 June 2009

C. D. Oxley
C. D. Oxley
Affiliation:
School of Agriculture, Cambridge.
Get access Rights & Permissions [Opens in a new window]

Extract

Figures showing the means and the standard deviation of butterfat percentage of milk samples, at the afternoon and morning milkings res-pectively, during the four quarters of the year are presented.

The probable sources of error due to the nature of the sample are discussed and the seasonal variability of mean and of standard deviation is considered.The likelihood of the mean of afternoon or of morning milk failing to reach certain specified minima during the respective seasons is calculated.

Type
Original Articles
Information
Journal of Dairy Research , Volume 6 , Issue 1 , January 1935 , pp. 1 - 5
Copyright
Copyright © Proprietors of Journal of Dairy Research 1935

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

(1) Gaines, W. L. and Davidson, F. A. (1923). Ill. agric. Exp. Sta. Bull. No. 245, p. 584.Google Scholar
(2) National Institute For Research in Dairying, Reading. Annual Report , 1928, p. 42.Google Scholar