Articles
Description of LASCAR, a database for studying the productive life of the dairy cow
Published : 28 February 1993
Abstract
A relational database called LASCAR has been designed to study the productive life of dairy cows. Data was recorded over the last 20 years in the 3 experimental dairy farms of INRA’s Centre of Clermont-Fd-Theix. It is composed of 10 tables describing the genetic caracteristics and measurements at the heifer period of the animals, individual performance on different time scales (milk production, liveweight, reproductive events, diseases) and a few factors governing these performances (nutritional supplies, climate). It contains 3851 lactations from 1179 cows. Its data were exhaustively checked. Different ways of studying the productive life from this database are presented.
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