Production (Economic theory) (2) Pregnancy (2) Milk (2) Labor (Obstetrics) (2) Cattle (2) Ganado vacuno (2) Leche (2) Embarazo (2) Parto (2) Producción (2) production (2) Carbon sequestration (1) Evolution (Biology) (1) Plumbing fixtures (1) Time (1) Sampling (1) Reproduction (1) Quality of products (1) Ovulation (1) Nitrogen (1) Milk--Quality (1) Matter (1) Jealousy (1) Insulin (1) Fertility (1) Enzymes (1) Dynamics (1) Corn (1) Consumption (Economics) (1) Cells (1)