terneros

Livestock operations in which a base breeding herd of mother cows and bulls are maintained. Each year's calves are sold between the ages of 6 and 12 months, along with culled cows ...

antihelmínticos

농업; 일반 농업

Agents destructive to parasitic worms. They are used therapeutically in the treatment of infestation with parasitic worms of the helminth class, in humans and animal.

antígenos de superficie

농업; 일반 농업

Antigens on surfaces of cells, including infectious or foreign cells or viruses. They are usually protein-containing groups on cell membranes or walls.

antígenos de neoplasias

농업; 일반 농업

Proteins, glycoprotein, or lipoprotein moieties on surfaces of tumor cells that are usually identified by monoclonal antibodies. Many of these are of either embryonic or viral ...

antígenos de histocompatibilidad

농업; 일반 농업

A group of antigens that includes both the major and minor histocompatibility antigens. The former are genetically determined by the major histocompatibility complex. They ...

antígeno nuclear de célula proliferativa

농업; 일반 농업

Nuclear antigen with a role in DNA synthesis, DNA repair, and cell cycle progression. PCNA is required for the coordinated synthesis of both leading and lagging strands at the ...

anticonceptivos

농업; 일반 농업

Agents, devices, methods, or procedures which diminish the likelihood of or prevent conception.

뉴스 속의 용어

La válvula aórtica

La válvula aórtica es la entrada principal del corazón entre el ventrículo izquierdo y la aorta. La válvula aórtica puede verse afectada por una serie ...