[IFN] -- German caterpillar is one of the favorite food of birds chirping. High demand makes it more promising silkworm cultivation. Interestingly, silkworm breeding is also relatively easy.
Susanti, silkworm breeders german from Medan, North Sumatra said, the process of breeding silkworm breeding german can be done. For the media could use a wooden box. The first step sires enter into the box. Sires month-old is ready to lay eggs. "After spawning broodstock will die," he explained.
Future changes in the eggs become larvae usually reach two weeks. Age larvae into adults or ready to harvest takes two to three months. At that time, the good larvae feed twice daily given in the form of skin watermelon and wheat.
In order to avoid pests, the cage should be cleaned once a week and dried in the sunlight. Susanti reminded, broodstock and larvae should be placed in room temperature so that it remains dry.
Other breeders, Grace Ramadan, from Bogor admit, breeding German caterpillar is not difficult. Not only the process, the tools needed for breeding is also quite simple. The equipment required in the form of shelves, trays, bottles yakult, and seeds as much as 30 kilograms (kg). Seed as much as it can produce 100 kg of silkworm german per month.
According to Grace, the selection of the parent must be selective. Ie, no more than 2 kg in order caterpillars pupate size can be large. "Later, the caterpillars will pupate about seven to ten days," said Grace.
After becoming a cocoon, cocoon-making process is carried out for three days. Making process must be careful not scratched or defective cocoons. When blisters, pupae can die because of rot.
The pupae were taken also not arbitrary. Namely, brownish white cocoon. Later, a cocoon that has been placed in the box given base newspaper. On top of the base newspaper, the cocoon is spread in such a way so as not to overlap in one place. Once the box is sealed with newsprint.
Usually the time needed cocoon transformed into a beetle about 10 days. "Having been a beetle, note the color of the wings. If you've taken a new shiny black, "said Grace.
Beetles still can not be taken if the color is brown, so it must wait until the color black wings. It is a sign that the beetles are ready to lay eggs. Beetles that are ready to spawn placed in new boxes or crates lined with cotton, the number could be 250 grams per box.
Let this nursery for seven days. After that, any existing cotton eggs placed in a separate box. "The eggs begin to hatch after the age of 30 days, after which it is separated from the cotton," he said.
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