Hostname: page-component-745bb68f8f-b95js Total loading time: 0 Render date: 2025-02-11T17:06:30.387Z Has data issue: false hasContentIssue false
  • English
  • Français

Prediction of manure nitrogen output of dairy cows from animal and dietary factors

Published online by Cambridge University Press:  23 November 2017

T Yan ,
J P Frost ,
R E Agnew ,
R C Binnie  and
C S Mayne
T Yan*
Affiliation:
The Agricultural Research Institute of Northern Ireland, Hillsborough, Co Down, Northern Ireland, United Kingdom
J P Frost
Affiliation:
The Agricultural Research Institute of Northern Ireland, Hillsborough, Co Down, Northern Ireland, United Kingdom
R E Agnew
Affiliation:
The Agricultural Research Institute of Northern Ireland, Hillsborough, Co Down, Northern Ireland, United Kingdom
R C Binnie
Affiliation:
The Agricultural Research Institute of Northern Ireland, Hillsborough, Co Down, Northern Ireland, United Kingdom
C S Mayne
Affiliation:
The Agricultural Research Institute of Northern Ireland, Hillsborough, Co Down, Northern Ireland, United Kingdom
*
Email: [email protected]
Get access

Extract

In 1991, the European Union introduced the Nitrates Directive which aims to prevent the pollution of groundwater and surface water by nitrates arising from agricultural sources. One mandatory measure stipulated by the Directive involves a limit, set at 170 kg/hectare organic N (manure N), on the amount of livestock manure which may be applied to land each year. This limit will have very significant implications for stocking rates on livestock farms. The objective of the present study was to use total diet digestibility data obtained at this Institute to develop prediction equations for manure N output in lactating dairy cows.

Type
Theatre presentations
Information
Proceedings of the British Society of Animal Science , Volume 2006 , March 2006 , pp. 41
Copyright
Copyright © The American Society of International Law 2016

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.)