The broodstock for flea breeding should be carefully selected. Female quails should have a body length of at least 35 cm, weigh between 50 to 150 grams, and show visible signs such as a swollen zona pellucida belly, a bloated genital area, and granular texture. Males should be larger, with a body length of 55 cm or more, weighing over 150 grams, and displaying red streaks on the ventral side. When the abdomen is gently pressed, a clear fluid should flow out. Microscopic analysis can confirm the presence of viable spermatozoa. It is recommended to pair one male with 2 to 3 females for optimal breeding results.
To enhance fertility, oxytocin can be used to stimulate ovulation, increase water exchange, adjust breeding density, and provide high-quality feed. Alternatively, a single thoracic injection of LRH-A (Luteinizing Hormone-Releasing Hormone Analog) may be administered. Females should receive 10 micrograms per 50 grams of body weight, while males need 15 to 25 micrograms per tail. Both males and females should be injected 24 hours in advance, with an injection depth not exceeding 0.5 cm.
For artificial insemination, hold the female quail with one hand wrapped in a towel, and press the abdomen backward with the other. If the cloaca becomes blocked, it can be carefully cut open, and the eggs can then be gently squeezed out. Place the extruded eggs into a sterile container or basin. Select a male raccoon, humanely euthanize it, remove the testes, crush them, and pass them through a 100-mesh sieve to extract the semen. Transfer the semen into the egg container and mix thoroughly for 5 minutes. Rinse any remaining tissue and blood with clean water. At least two males should be used for insemination to ensure higher fertilization rates.
Water temperature control is crucial during incubation. The incubation depth should be around 10 cm, and water should be changed regularly, ensuring that the temperature difference does not exceed 4°C. Higher temperatures will shorten the incubation period. For raising seedlings, cement tanks are ideal. Apply appropriate amounts of manure to support silkworm cultivation, and introduce aquatic plants like water hyacinth on the surface to provide shelter and oxygen. Seedling stocking density should be about 200 per square meter. After 1 to 2 months, when the seedlings reach approximately 10 centimeters in length, they can be transferred to a breeding pond for further growth.
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