Growth promoters and novel feed additives improving poultry production and health, bioactive principles and beneficial applications: The trends and advances–a review - Dhama, K; Tiwari, R; Khan, R U; Chakraborty, S; Gopi, M; Karthic, K; Saminathan, M; Desingu, P A; Sunkara, L T (Int J Pharmacol, 2014)