any measurable or observable characteristic related to the milk ability to have a high butter yield and to produce a spreadable butter with a good taste.

INRA:PHASE "INRA PHASE"

ChickenAbsent,RabbitAbsent,PigAbsent,QuailAbsent,TroutAbsent,GooseAbsent,SeaBassAbsent,TurkeyAbsent,TilapiaAbsent,DuckAbsent,HorseAbsent,CodAbsent,SalmonAbsent,MouseAbsent,SeaBreamAbsent,CarpAbsent,SoleAbsent,ZebraFishAbsent

CattlePresent,GoatPresent,SheepPresent