How to breed maggots and pupae? A detailed explanation of methods and key technical points
How to breed maggots and pupae?
Maggots and pupae are a protein feed with high nutritional value. In dry matter, the protein content reaches 50%-60%, and the fat content reaches 10%-29%. When used to raise poultry or fish, soft-shelled turtles, turtles, and shrimp Maggot and pupa production consists of three stages: raising adult flies, culturing maggots and pupae, and separating maggots from manure.
(1) Raising adult flies The suitable temperature for the growth and reproduction of adult flies is 22°C-30°C, and the relative humidity is 60%. The feed for adult flies is mostly made by mixing milk powder, sugar, and yeast. Chicken manure plus poultry and livestock carcasses can also be used, or maggot powder and fish meal can replace milk powder. Square or rectangular fly cages are set up in the breeding room, and water jars, feed jars, and egg-collection jars are placed inside the cages. Female flies begin to lay eggs 4-6 days after emergence. Each female fly lays about 1,000 eggs in her lifetime, and her lifespan is about 1 month. When collecting eggs, use soured milk and feed, add a few drops of dilute ammonia water and sugar water, then add a small amount of ammonium carbonate or chicken manure extract, soak cloth or filter paper, and place it in the egg-collection jar; the adult flies will then lay eggs on the cloth or filter paper.
(2) Culturing maggots and pupae The temperature in the maggot-rearing room should be maintained at 22°C-27°C, and the relative humid
ity should be 41%. The size of the culture trays should be based on convenience. Fresh chicken manure is spread inside to a thickness of 5-7 cm. The water content of the chicken manure is 65%-75%. To help with aeration, an appropriate amount of wheat straw or rice bran can be mixed into the chicken manure. For every kilogram of chicken manure, 1.3 grams of eggs can be added. The larval stage lasts 4-9 days.
(3) Separation of maggots from manure Generally, the maggots and the digested chicken manure are directly dried together as feed. If separation is needed, it can be done by taking advantage of the maggots' avoidance of light.
(1) Raising adult flies The suitable temperature for the growth and reproduction of adult flies is 22°C-30°C, and the relative humidity is 60%. The feed for adult flies is mostly made by mixing milk powder, sugar, and yeast. Chicken manure plus poultry and livestock carcasses can also be used, or maggot powder and fish meal can replace milk powder. Square or rectangular fly cages are set up in the breeding room, and water jars, feed jars, and egg-collection jars are placed inside the cages. Female flies begin to lay eggs 4-6 days after emergence. Each female fly lays about 1,000 eggs in her lifetime, and her lifespan is about 1 month. When collecting eggs, use soured milk and feed, add a few drops of dilute ammonia water and sugar water, then add a small amount of ammonium carbonate or chicken manure extract, soak cloth or filter paper, and place it in the egg-collection jar; the adult flies will then lay eggs on the cloth or filter paper.
(2) Culturing maggots and pupae The temperature in the maggot-rearing room should be maintained at 22°C-27°C, and the relative humid
ity should be 41%. The size of the culture trays should be based on convenience. Fresh chicken manure is spread inside to a thickness of 5-7 cm. The water content of the chicken manure is 65%-75%. To help with aeration, an appropriate amount of wheat straw or rice bran can be mixed into the chicken manure. For every kilogram of chicken manure, 1.3 grams of eggs can be added. The larval stage lasts 4-9 days.
(3) Separation of maggots from manure Generally, the maggots and the digested chicken manure are directly dried together as feed. If separation is needed, it can be done by taking advantage of the maggots' avoidance of light.