Evaluation of a dry matter intake model for individual cows

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

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

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.

Original languageEnglish
Title of host publicationPrecision Livestock Farming
PublisherBrill
Pages67-73
Number of pages7
ISBN (Electronic)9789086865154
ISBN (Print)9789076998220
DOIs
StatePublished - 1 Jan 2023

Keywords

  • dairy cow
  • dry matter
  • feed intake
  • feed ration
  • milking robot

ASJC Scopus subject areas

  • General Engineering
  • General Agricultural and Biological Sciences

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