The growth of lymphoidal organs and the testes of chickens.
D000818:Animals; D001686:Biological Phenomena; D002645:Chickens; D006801:Humans; D008297:Male; D008460:Meat; D010829:Physiological Phenomena; D011200:Poultry / Q000502:physiology*; D013154:Spleen / Q000502:physiology*; D013737:Testis / Q000502:physiology*; D013950:Thymus Gland / Q000502:physiology*
POULTRY/physiology; SPLEEN/physiology; TESTIS/physiology; THYMUS GLAND/physiology