Five factors leading to yolk peritonitis in high-yielding laying hens
Release time:
Oct 14,2018
One of the most common problems encountered by laying hens after they begin to give birth is“vitelline peritonitis”, Maybe ordinary people will look at it and know the types of drugs used, but many people don't know the cause of the disease. The occurrence of yolk peritonitis in laying hens will greatly reduce the laying rate and affect the breeding efficiency. So what causes high-yield laying hens to suffer from yolk peritonitis?
1When laying hens are infected with avian influenza, Newcastle disease, infectious bronchitis, infectious laryngotracheitis, egg drop syndrome and other diseases, there will be follicular congestion, bleeding, follicular membrane rupture, egg liquefaction and other diseases, causing vitelline peritonitis. The severity and speed of vitelline peritonitis are related to the type, virulence, quantity and health status of chickens.
2The infection of chicken colibacillosis in laying hens can cause salpingitis, follicular congestion, follicular deformation and discoloration, oviduct umbrella adhesion, and follicular falling into abdominal cavity to cause peritonitis. When laying hens are infected with pullorum or salmonella, avian pasteurella and mycoplasma, oophoritis can also be caused, with follicular congestion, degeneration and rupture, resulting in yolk peritonitis.
3High-yield laying hens have poor tolerance to heat, and are prone to heatstroke in summer high temperature season, and follicular congestion, degeneration and rupture, resulting in yolk peritonitis. Other causes such as colds, tumors and other causes of fever, are likely to cause yolk peritonitis.
4Vaccination during the peak period of egg production, sudden intrusion of strangers or animals, sudden abnormal noise, capture of caged chickens and other sudden fright, make high-yield laying hens appear flock and fry flock, hens suddenly leap up and down, resulting in follicle rupture, discharged yolk is not caught by the bell mouth, follicles fall into the abdominal cavity and cause peritonitis.
5When the mother bird is subjected to strong impact external force, artificial insemination force is too strong, too large, abdominal pressure is too large, or fallopian tube peristalsis disorder, will just enter the fallopian tube yolk extrusion and other factors, so that follicle rupture or egg into the abdominal cavity will cause peritonitis.
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