Hostname: page-component-78c5997874-ndw9j Total loading time: 0 Render date: 2024-11-19T18:29:49.695Z Has data issue: false hasContentIssue false
  • English
  • Français

Effects of low-protein supplements on the yield and composition of milk from grazing dairy cows

Published online by Cambridge University Press:  06 May 2016

J. L. Corbett
J. L. Corbett*
Affiliation:
The Rowett Research Institute, Bucksburn, Aberdeenshire
Get access

Extract

Calculations based on conventional feeding standards suggest that cows grazing well-managed pasture are frequently consuming excessive quantities of protein in relation to their requirements and to the starch equivalent consumed. They also suggest that milk production from potentially high-yielding cows is limited primarily by the supply of dietary energy. This paper describes two experiments on the effects of low-protein supplements on the performance of grazing dairy cows and reports the main results on yield and composition of milk and herbage consumption. Full details and results, and some other aspects of the experiments, are being reported elsewhere.

Type
Research Article
Information
Proceedings of the British Society of Animal Production , Volume 1958 , 1958 , pp. 3 - 12
Copyright
Copyright © The British Society of Animal Production 1958

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

Cooper, M. M., 1952. The use of bulk foods in British animal production. Agric. Progr.,27: 31.Google Scholar
Dijkstra, N. D., 1954. What has the State Agricultural Experiment Station at Hoorn contributed to research into the feeding value of roughage? Neth. J. agric. Sci., 2: 273.Google Scholar
Hamilton, R. A., 1955. Utilization of grassland. Agriculture, Lond., 62: 374.Google Scholar
Hancock, J., 1953. Studies in monozygotic cattle twins. VII. The relative importance of inheritance and environment in the production of dairy cattle. N.Z. J. Sci. Tech., Agric., 35: 67.Google Scholar
Hart, M. L.’T, 1956. Some problems of intensive grassland farming in the Netherlands. Proc. 7th Int. Grassl. Congr. (N.Z.)Google Scholar
Holmes, W., Waite, R., MacLusky, D. S., and Watson, J. N., 1956. Winter feeding of dairy cows. I. The influence of level and source of protein and of the level of energy in the feed on milk yield and composition.J. Dairy Res. 23: 1.Google Scholar
MacLusky, D. S., 1955. The quantities of herbage eaten by grazing dairy cows. Proc. Brit. Soc. Anim. Prod., 1955: 45.Google Scholar
Paterson, R., 1954. Do we want high yielders ? Fmrs’ Wkly [Lond.] 40(9): 78.Google Scholar
Rowland, S. J., 1946. The problem of low solids-not-fat. Dairy Ind. 11:656.Google Scholar
Sjollema, B., 1950. On the influence of the composition of pasture herbage on the production of dairy cows and on the benefit of supplementing the grass with protein-poor foods. J. Brit. Grassl. Soc, 5: 179.Google Scholar
Witt, M., 1952. Versuche über die Zufütterung von Trockenschitzeln auf der Weide. Arch. Tierernähr. Tierz., 2: 240. (Abstract in Dairy Sci. Abstr., 1954, 16: 187.)Google Scholar
Woodman, H. E., 1954. Rations for livestock. Bull. Minist. Agric, Lond., No. 48.Google Scholar