Metabolic changes in lactating cows during appearance and spontaneous evolution of degenerative ovarian disease

blood composition blood sampling ciclo estral ciclo estrale cisti ovariche composition du sang composizione del sangue contenido proteico contenuto proteico cycle oestral dairy cows echographie echography ecografia enzimas enzimi enzyme enzymes fosforo hipocalcemia hipoglicemia hypocalcaemia hypoglycaemia ipocalcemia ipoglicemia kyste ovarien metabolism metabolisme metabolismo oestrous cycle ovarian cysts phosphore phosphorus protein content puerperio puerperium riesgo rischio risk risque uraemia uremia uremie vacas lecheras vacche lattifere