In:
Proceedings of the British Society of Animal Science, Cambridge University Press (CUP), Vol. 2002 ( 2002), p. 106-106
Abstract:
Agriculture is one of the major sources of nitrogen (N) pollution. Dairy production causes losses of N in faeces and urine that contribute to environmental pollution with an estimated annual output of 320 kt N and 80 kt ammonia in the U.K. alone. Therefore, improving N utilization in dairy cows and especially reducing N output in excreta is desirable to reduce environmental N pollution, particularly as ammonia. Mathematical models have been used to predict potential N excretion from dairy cows. However, these models generally are empirical in nature, hence not process based and therefore there is a need to develop a model that can describe biological processes in the animal. The objective of the present study was to develop a dynamic N model to predict the amount and form of N excreted by dairy herds and seek to make appropriate recommendations that will reduce N excretion from dairy cows.
Type of Medium:
Online Resource
ISSN:
1752-7562
,
1752-7570
DOI:
10.1017/S1752756200007626
Language:
English
Publisher:
Cambridge University Press (CUP)
Publication Date:
2002
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