Indusium: the case made by an insect larva: a membranous layer of the embryo of Locustidae below the serosa. Explanation of Terms Used in Entomology John. serosa: the outer membrane that envelops the forming embryo, the amnion and the remainder of the egg. Explanation of Terms Used in Entomology John.
Parakeets need a varied but balanced diet and plenty of water. Dehydration can kill your bird quickly, so always make sure there's water in her cage. Instead of buying a standard bird seed, look for a seed mix that is designed specifically for parakeets. These often contain dried fruit and other nutrition your bird needs, such as calcium -- low blood calcium can cause sudden death. Give her some small pieces of fresh, raw fruits and vegetables to help round out her diet. Don't leave fruit in her cage all the time, though.
Egg peritonitis. Egg peritonitis is another condition related to egg production that can be fatal to your bird. It is caused by yolk fluid leaking from the oviduct and ovaries into the abdominal cavity. The fluid can build up there, causing a visible swelling of the abdomen. From there, the yolk can get into the blood stream and poison your bird, and it can get laid down in the liver, causing an enlarged liver and liver damage. This picture shows Jo's swollen body when she had egg peritonitis.