Common Signs of Disease in

Pasture + Free Range

Layer Hens

Interactive Necropsy

Use this interactive necropsy illustration to assist in preliminary diagnosis. If you see signs of illness, contact your veterinarian as soon as possible. Select an organ to see relevant info below.

Basic Internal Anatomy

  • A: Face
  • B: Trachea
  • C: Heart
  • D: Lungs
  • E: Kidney
  • F: Ovaries
  • G: Oviduct
  • H: Intestines
  •  I:  Liver
Necropsy illustration of a hen
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Common Diseases of the Selected Organ

Tetany

Aka "tetany"

Affects:

Lungs, Ovaries, Trachea, Muscle

Description:

Appears similar to suffocation/heat stress, but with a fully formed egg in the oviduct.

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Soft Bones

Affects:

End of Keel or Leg Bones

Description:

Bones can be bent without breaking.

https://cdn.prod.website-files.com/671ba227ec99231e78cd41c8/6a96d8cb400b96eea7b89995_placeholder-1.png

Coccidiosis or Necrotic Enteritis

Affects:

Intestines

Description:

The intestines are red and thickened on the outside. Inside, they are red and have a rough towel-like appearance.

https://cdn.prod.website-files.com/671ba227ec99231e78cd41c8/6a96d8cb400b96eea7b89995_placeholder-1.png

Hepatitis

Affects:

Liver

Description:

The liver is enlarged, firm, and/or has irregular coloration.

https://cdn.prod.website-files.com/671ba227ec99231e78cd41c8/6a96d8cb400b96eea7b89995_placeholder-1.png

Fatty Liver

with or without hemorrhage

Affects:

Liver

Description:

The liver is large and yellow or pale. Sometimes, it's covered in a blood clot.

https://cdn.prod.website-files.com/671ba227ec99231e78cd41c8/6a96d8cb400b96eea7b89995_placeholder-1.png

Peritonitis

Affects:

Abdomen

Description:

There is a yellow, cheesy substance somewhere inside the abdomen.

https://cdn.prod.website-files.com/671ba227ec99231e78cd41c8/6a96d8cb400b96eea7b89995_placeholder-1.png

Sinusitis

Affects:

Face

Description:

The side of the face is filled with a fluid or yellow, cheesy substance.

https://cdn.prod.website-files.com/671ba227ec99231e78cd41c8/6a96d8cb400b96eea7b89995_placeholder-1.png

Salpingitis

Affects:

Oviduct

Description:

The oviduct is larger than normal and filled with a yellow, cheesy substance.

https://cdn.prod.website-files.com/671ba227ec99231e78cd41c8/6a96d8cb400b96eea7b89995_placeholder-1.png

Gout

Affects:

Heart, Liver or Kidney

Description:

Internal organs have a white, chalky substance on their surface.

https://cdn.prod.website-files.com/671ba227ec99231e78cd41c8/6a96d8cb400b96eea7b89995_placeholder-1.png

Tracheitis

with or without Tracheal Plug

Affects:

Trachea

Description:

The trachea is red and may contain a firm yellow plug, blood, and/or mucus.

https://cdn.prod.website-files.com/671ba227ec99231e78cd41c8/6a96d8cb400b96eea7b89995_placeholder-1.png

Suffocation or Heat Stress

Affects:

Lungs, Ovaries, Trachea, Muscle

Description:

Affected organs appear darkened and red.

https://cdn.prod.website-files.com/671ba227ec99231e78cd41c8/6a96d8cb400b96eea7b89995_placeholder-1.png

Cystic Oviduct

aka: "False Layer Syndrome"

Affects:

Oviduct

Description:

The oviduct is larger than normal and filled with clear fluid.

https://cdn.prod.website-files.com/671ba227ec99231e78cd41c8/6a96d8cb400b96eea7b89995_placeholder-1.png

Select an organ above to see documented diseases for it.

Two medical personnel holding a chicken and posing while smiling.