Hostname: page-component-84b7d79bbc-5lx2p Total loading time: 0 Render date: 2024-07-25T06:13:59.694Z Has data issue: false hasContentIssue false
  • English
  • Français

648. Weight Changes in grazing cows

Published online by Cambridge University Press:  01 June 2009

C. C. Balch  and
C. Line
C. C. Balch
Affiliation:
National Institute for Research in Dairying, University of Reading
C. Line
Affiliation:
National Institute for Research in Dairying, University of Reading
Get access Rights & Permissions [Opens in a new window]

Extract

1. Under various feeding regimes the entire contents of the reticulo-rumen of fistulated Shorthorn cows were repeatedly removed, weighed, sampled and returned.

2. With cattle grazing grass/clover swards, but not with others grazing green cereals, there was a very marked tendency for less digesta to be found in the reticulo-rumen than with several winter diets.

3. An average fall of 71±24 lb. was found in the weight of a mixed herd of thirty-eight Friesian and Shorthorn cows when they were changed suddenly from winter diets to grazing. Simultaneous observations on three fistulated cows showed that 84% of such short-term variation in weight could be explained by variation in the weight of the digesta in the reticulo-rumen. It is likely that smaller, parallel variations in the weight of the contents of the remainder of the gut accounted for most of the remaining differences.

Type
Original Articles
Information
Journal of Dairy Research , Volume 24 , Issue 1 , February 1957 , pp. 11 - 19
Copyright
Copyright © Proprietors of Journal of Dairy Research 1957

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)Tayler, J. C. (1954). Proc. Brit. Soc. Anim. Prod. p. 3.Google Scholar
(2)Rep. nat. Inst. Dairy., Reading (1955), p. 42.Google Scholar
(3)Mäkelä, A. (1956). Suom. Maataloust. Seur. Julk. no. 85.Google Scholar
(4)Reid, J. T., Wellington, G. H. & Dunn, H. O. (1955). J. Dairy Sci. 38, 1344.CrossRefGoogle Scholar