... indicating no diet effects However, the inclusion of organic acids and the combination of acids and tannin had no deleterious effects on haematological, biochemical and antioxidant enzyme parameters ... differences in the combination and dose of the acids, composition of basal diet, age of animals and existing levels of performance Each acid has unique properties, including its pKa, and therefore the ... effects of tannin In diets for humans and nonruminant animal species, tannins can reduce the digestibility of proteins, increase the excretion of proteins and essential amino -acids, may lower the...