Evaluation of a dry matter intake model for individual cows

I. Halachmi; Y. Edan; U. Moallem; E. Maltz

Evaluation of a dry matter intake model for individual cows

In: Precision livestock farming

Authors:

I. Halachmi

I. Halachmi ¹Agricultural Research Organization, the Volcani Center, P. O. Box 6, Bet Dagan 50250, Israel
halachmi@volcani.agri.gov.ils

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Y. Edan

Y. Edan ²Department of Industrial Engineering and Management, Ben-Gurion University of the Negev, Be’er Sheva 84105, Israel

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U. Moallem

U. Moallem ¹Agricultural Research Organization, the Volcani Center, P. O. Box 6, Bet Dagan 50250, Israel

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, and

E. Maltz

E. Maltz ¹Agricultural Research Organization, the Volcani Center, P. O. Box 6, Bet Dagan 50250, Israel

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Type:: Chapter

Pages:: 67–73

DOI:: https://doi.org/10.3920/9789086865154_010

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A model predicting the individual dry matter intake (DMI) of dairy cows was evaluated. The input parameters are body weight and milk yield, which are both measurable on-line in an commercial dairy farm. The model output is voluntary DMI (kg per day) for each individual cow, which can be used in nutritional calculation for the individuals. The new model was statistically validated by comparison with the NRC model. In one herd, 76% cows passed the statistical test, compared with 33% when the NRC model was used; in a second herd, 11 cows (50%) passed the test with the new model, and only 1 with the NRC model.

Evaluation with a larger number of cows is necessary to determine the usefulness of the model in programming individual feeding of high-yield cows.

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Precision livestock farming

E-Book ISBN:: 9789086865154

Publisher:: Wageningen Academic

Print Publication Date:: 10 Oct 2003

Subjects
- Life Sciences
  - General
  - Animal & Veterinary

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Evaluation of a dry matter intake model for individual cows

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Precision livestock farming

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