TY - THES ID - 146220664 TI - Etude de la persistance des productions laitières pendant la lactation chez la vache Pie-Noire. PY - 1990 DB - UniCat KW - Cows KW - Lactation KW - Milk production KW - genetic parameters KW - breeding methods KW - Quantitative genetics KW - climate KW - Statistical methods KW - computer applications KW - Milk recording KW - Methode d'amelioration KW - Methode d'amelioration UR - https://www.unicat.be/uniCat?func=search&query=sysid:146220664 AB - ER -