title: Effects or protein levels and methionine supplementation of the diets of layers on egg production rate, fertility and hatchability of eggs in the tropics.
mesh_terms: D000596:Amino Acids / Q000032:analysis; D000818:Animals; D001835:Body Weight; D055598:Chemical Phenomena; D002621:Chemistry; D002645:Chickens / Q000502:physiology*; D004044:Dietary Proteins; D004531:Eggs; D005260:Female; D005298:Fertility; D008715:Methionine; D009549:Nigeria; D010058:Oviposition; D014329:Tropical Climate
chemical_list: D000596:Amino Acids; D004044:Dietary Proteins; D008715:Methionine