Replacement heifers in tie stalls or boxes with slatted floor with and without summer grazing: Behaviour, growth and subsequent milk production

animal health behaviour caillebotis comportamiento comportement crecimiento croissance establos feed intake gain de poids ganancia de peso grazing growth heifers milk yield novilla pastoreo prise alimentaire (animaux) rendement laitier rendimiento lechero reproduction sanidad animal slatted floors stalle stalls suelo emparrillado tethered stalls weight gain