What does culling mean in biology?

In biology, culling is the process of segregating organisms from a group according to desired or undesired characteristics. In animal breeding, it is the process of removing or segregating animals from a breeding stock based on specific trait.

What is a cytocide agent?

[ sī′tə-sīd′ ] n. An agent that is destructive to cells.

What is cytocide?

: killing or tending to kill individual cells cytocidal RNA viruses.

What is the aim of culling?

The aim of culling is to eradicate a host species, to prevent the pathogen entering and contaminating new individuals and populations. It is commonly believed that culling eliminates or reduces the size of reservoir populations, either halting or decreasing the frequency of pathogen transmission to new hosts.

Is culling good or bad?

The usual response to these problems is “culling”: killing or otherwise removing pest animals from wild populations with the aim of reducing their abundance and impact, or even eradicating them. But a recent study shows that culling can backfire badly.

What does Lateroflexion mean?

[ lăt′ə-rō-flĕk′shən ] n. A bending or curvature to one side.

Why can viruses be Cytocidal?

Infections of permissive cells are usually productive because infectious progeny virus is produced. Most productive infections are called cytocidal (cytolytic) because they kill the host cell. Infections of nonpermissive cells yield no infectious progeny virus and are called abortive.

What is a cytopathic virus?

Share Give Feedback External Websites. Cytopathic effect (CPE), structural changes in a host cell resulting from viral infection. CPE occurs when the infecting virus causes lysis (dissolution) of the host cell or when the cell dies without lysis because of its inability to reproduce.

How is culling done?

Reduction of a wild animal population by selective slaughter of domestic poultry birds, such as chickens and ducks, to contain the spread of bird flu is called culling. During culling operations, all domestic birds in an infected area are slaughtered and their remains buried.

What are the disadvantages of culling?

Disadvantages of Culling Animals

  • Culling Destroys Biodiversity by Harming Unrelated Species. As stated earlier, culling should be based on solid facts and a well-thought-out plan of action.
  • Unintended Ecological Consequences.
  • Ethical Concerns.
  • It May Lead to Increase of the Culled Species.
  • Culling Drives Extinction.

What are the reasons for culling?

The reasons for culling are generally voluntary, for example poor production, or involuntary, including mastitis, extreme lameness or poor reproduction, and/or death.

What is NAS O in medical terms?

Naso-: Prefix referring to the nose, as in nasogastric tube (a tube that is passed through the nose and to the stomach).