Variations of milk yield and composition induced [in dairy cows] by treatment with rBST. 1: The effect of daily injection throughout a period of 21 days

acide gras acidi grassi calcio calcium calidad chemicophysical properties cholesterol colesterol colesterolo contenuto lipidico dairy cows fat globules fatty acids fosforo globule gras globuli di grasso glomerulos de grasa hormonas pituitarias hormone hypophysaire lactation lactosa lactose lait lattazione latte lattosio leche lipid content milk milk yield phosphore phosphorus pituitary hormones potasio potassio potassium proteine del latte quality rendement laitier rendimiento lechero sodio sodium teneur en lipides vacas lecheras vacche lattifere