Matters needing attention in keeping species of dung beetles

Dung beetle is also called dung beetle, and many people call it dung beetle (g è) beetle, push pill and so on. It belongs to the subfamily Coleoptera. There are about 2300 species of dung beetles in the world, distributed on any continent outside Antarctica. Dung beetles can use moonlight polarization to locate to help feed. It has a certain phototaxis. Insects that drill into cow dung can roll the manure into a ball and push it forward. Mainly feed on animal droppings, there is the title of "natural scavenger", also known as "Moduoji".

There is a problem of keeping species when dung beetles change from wild to artificial breeding. Although the time of artificial breeding is not long, the problem of seed retention has not been noticed in the early stage, and there is also the problem of provenance degradation, such as the deformation of insect body, the decrease of fecundity, the weakening of vitality, and so on, so when keeping seeds in the future, we must pay attention to the following problems:

1) selection of females

The female that keeps the seed should choose the healthy female with large size, oval shape, full abdomen, bright, strong movement ability, rapid action, large food intake, free of parasites and diseases.

2) selection of eggs

The vitality of all the egg sheaths laid by an oviposition female is also different due to the different periods of production. In general, the hatching rate of eggs laid by young adults from July to August is high, and the hatched nymphs are strong and vigorous. Therefore, it is better to reserve the eggs laid during the peak spawning period as seed eggs. The egg sheath is shaped like a pod, reddish brown, glossy, and full eggs can be preserved, while those with flat, damaged and moldy eggs are not suitable for leaving seeds.

3) the question of whether the male worm should be retained or not.

The 8-year-old male nymph can pick out either human medicine or centipede feed worm before growing wings, which not only reduces feed but also increases utilization rate. If it is a kind of insect, it will no longer be removed, so as not to affect the fertilization rate of the egg. In addition, males mature earlier and have a shorter life span than females. In production, males from the same batch of species that are ready to stay should be picked out and put into female groups hatched 3-5 months earlier, so that males can be fully utilized. Therefore, the female and male identification of the nymph before the feathering of the male is beneficial to the utilization of the male.