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Collecting Yellow Mealworm Eggs: Effective Methods and Techniques


Yellow mealworms, scientifically known as Tenebrio molitor, are a popular choice for insect farming due to their nutritional value and versatility as animal feed and even human consumption. Successful yellow mealworm breeding relies heavily on efficient egg collection from adult beetles. These eggs eventually hatch into larvae, which can be further processed or used as animal feed. In this comprehensive guide, we will explore two highly effective methods for collecting yellow mealworm eggs, ensuring a productive and sustainable breeding operation.

The Significance of Yellow Mealworm Eggs

Yellow mealworm eggs are the starting point of a successful mealworm breeding program. These tiny eggs, often overlooked due to their size, hold immense potential for generating large populations of nutritious mealworms. The collection and care of these eggs are essential to maximize the yield of healthy and thriving larvae.

Method One: Egg Collection Using Breeding Boxes

Breeding boxes are commonly used in mealworm farms for collecting eggs efficiently. This method offers several advantages, including ease of handling and minimal disturbance to the breeding process.

Step 1: Prepare the Breeding Box

To begin, gather the necessary materials:

  • Breeding boxes (preferably with removable egg-laying mesh trays)
  • Wooden boxes
  • Newspaper sheets
  • Fine feed or bran
  • A brush for spreading feed

Step 2: Set Up the Breeding Box

  • Line the bottom of the wooden box with newspaper sheets. This serves as a clean surface for egg collection and ensures easy cleanup.
  • Insert the egg-laying mesh tray into the wooden box, creating a secure and well-ventilated environment for the adult mealworms.

Step 3: Prepare the Egg-Laying Environment

  • Pour fine feed or bran into the egg-laying mesh tray. Ensure an even distribution.
  • Use a brush to spread the feed or bran evenly and maintain a thickness of approximately 4 millimeters.
  • Adult mealworms will be placed in the egg-laying mesh tray, where they will consume the chunky feed.

Step 4: Encourage Egg Laying

  • When adding moisture to the environment, cut cabbage or melons into strips and place them inside the egg-laying mesh tray. Leave enough space to force adult mealworms to lay their eggs in the bran beneath, preventing them from consuming or damaging the eggs.

Step 5: Collecting Eggs

  • To collect the eggs, carefully remove the egg-laying mesh tray.
  • Lift the ends of the newspaper at the bottom of the wooden box, spreading out the egg paper.
  • Each breeding box can accommodate 5 to 6 layers of egg paper.

Method Two: Egg Collection Using Egg Collection Boards

Egg collection boards are an alternative method for collecting yellow mealworm eggs. This technique can be particularly useful for reducing the need for breeding boxes and minimizing costs.

Step 1: Prepare the Egg Collection Boards

To begin, gather the materials needed:

  • Triple-layered fiberboard
  • Old newspapers or white paper
  • Bran
  • Granular feed
  • Leafy vegetables

Step 2: Create the Egg Collection Boards

  • Cut the egg collection boards from triple-layered fiberboard, ensuring they are slightly larger than the egg sieve or of similar dimensions.
  • Place a sheet of old newspaper or white paper of the same size on each egg collection board.
  • Evenly spread bran between the wire mesh and the old newspaper on the egg collection board. Place some granular feed and leafy vegetables on the wire mesh.

Step 3: Encourage Egg Laying

  • Adult mealworms will lay their eggs on the paper rather than in the feed, thanks to the presence of bran and the correct placement of food.
  • Ensure there are no gaps between the egg collection boards and the breeding box to prevent eggs and feed from falling out through the seams.

Step 4: Collecting Eggs

  • After about 6 days, when the eggs are ready to hatch into larvae, gently scrape the larvae off the egg collection boards along with the bran.
  • Place the collected larvae in a larval feeding tray for normal feeding.
  • Reuse the egg collection boards by laying them back in place and returning the original feed and adults.


Collecting yellow mealworm eggs is a fundamental aspect of mealworm farming. Properly executed egg collection methods, whether using breeding boxes or egg collection boards, can significantly impact the success of your mealworm breeding operation. By following these techniques and ensuring optimal conditions for egg laying, you can achieve higher yields of healthy and nutritious yellow mealworm larvae. This not only benefits your operation but also contributes to the growing demand for sustainable protein sources in various industries, including animal agriculture and human nutrition.

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JH BIO -Leading chinese multinational manufacturer and distributor offeed ingredients. Main Products:Driedmealworms,DriedBSF,Dried
superworm.Mealwormpowder,BSFpowder,superworm powder.
Mealworm defatted powder, BSFdefatted powder,Corn protein powder etc.

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Address:Room 02-0301, Building 2, Meicheng Shaxi First Neighborhood, Luoyang, Henan, China
+86 186 3888 0267
+860379-6256 8658

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