Heat-treated whole cottonseed: effect of dietary protein concentration on the performance and amino acid utilization by the mammary gland of dairy cows

alimentation amino acids blood composition bovin casein caseina cattle chemical composition composition chimique composition du sang cottonseed cows feed intake feeding ganado bovino glande mammaire graine de coton grasa de la leche heat treatment isoleucina isoleucine lactosa lactose lait leche leucina leucine mammary glands milk milk fat milk protein milk yield prise alimentaire (animaux) procesamiento processing protein metabolism protein sources proteine proteins rendement laitier rendimiento lechero traitement traitement thermique vaca vache