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Factors influencing individual predicted total dry matter intake of dairy cattle on farms

Published online by Cambridge University Press:  20 November 2017

H.C.F. Wicks
Affiliation:
Imperial College, Wye, Ashford, Kent TN25 5AH
J.D. Leaver
Affiliation:
Imperial College, Wye, Ashford, Kent TN25 5AH
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Extract

The aim was to estimate the influence of genetic merit (£PIN95) and level of concentrate feeding (Cgrp) on predicted total dry matter intake (tDMI) of individual cows, using records collected from commercial farms. The method described by Wicks & Leaver (2000) was used to estimate individual daily dry matter intakes from seven farms, totalling 4282 monthly records over a two-year period. The method was based on milk production records supplemented by body condition scores and height at withers, which were used to calculated the ME requirements of individual animals. All the records were collected, from autumn and winter (July to March) calving cows during the housed period (August to March).

Type
Poster Presentations
Copyright
Copyright © The British Society of Animal Science 2001

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References

Wicks, H.C.F. & Leaver, J.D. 2000. Development of a model to predict dry matter intake of individual dairy cattle on commercial farms. Proceedings of British Society of Animal Science, p.141.CrossRefGoogle Scholar