Cardiac index, oxygen delivery, and tissue oxygen extraction in slow and fast growing chickens, and in chickens with heart failure and ascites: a comparative study

age ascite ascites ascitis aves de corral blood circulation blood gases broiler chickens cardiopathie cardiovascular system circulation sanguine crecimiento croissance edad gaz sanguin growth growth rate haemodynamics heart diseases pollo de engorde poulet de chair poultry sistema cardiovascular taux de croissance volaille