Estudios (2) Estudio (2) Surveys (1) Selling (1) Rate of return (1) Race (1) Profit (1) Production (Economic theory) (1) Prices (1) Perception (1) Mothers (1) Meat (1) Markets (1) Marketing (1) Livestock breeders (1) Labor (Obstetrics) (1) Industrial productivity (1) Fortification (1) Costs, Industrial (1) Computer software (1) Competition (1) Childbirth (1) Chance (1) Cattle (1) Attachment and garnishment (1) Associations, institutions, etc (1) Animals (1) Animal culture (1) Analysis of variance (1) Ability (1)