Free Amino Acids in Dog Blood and Gut Contents after Feeding Meat

Abstract
Dogs were fasted 24 hours before being fed 200 gm of ground lean beef. Total free amino acids in fasting plasma varied from about 200 to 400 µmole/100 ml of plasma. When fasting values were high, feeding reduced them and vice versa. Regardless of total amino acids there was little difference in molar ratios. Plasma amino acid molar ratios may differ from the molar ratios of free amino acids in gut contents.