Good Quality Orange,Small Baby Orange,Nanfeng Orange Toboli International Trading Co., Ltd. , http://www.jnapplefruit.com
Seedling breeding
The broodstock is selected for the breeding of fleas. The female quail should choose a body length of 35 cm or more, weigh 50 to 150 grams, there is a zona pellucida, the genital hole is red and swollen, and the egg is the best; More than 55 cm, weighing more than 150 grams, abdominal veins with blood spots, squeeze the abdomen can flow out of transparent fluid, microscopic examination shows that the sperm species. It is advisable to use 2 to 3 females with one male. The oxytocosis can be used for inflating, increasing the amount of water exchange, adjusting the breeding density and providing high-quality bait and other measures. One-time injection of LRH-A is also possible. Females are injected with 10 micrograms per 50 grams of body weight and males are injected with 15 to 25 milligrams per tail. Males are given intrapleural injections 24 hours earlier than females. At the time of injection, the depth should not exceed 0.5 cm and the injection volume should not exceed 1 ml. The artificial insemination is performed by holding the front of the female in one hand with a towel, and pressing the abdomen backward in the other hand. If the cloacal cavity is blocked, the cloaca can be cut and then the egg is squeezed out. The extruded egg is placed in a disinfected jar or basin. Kill the selected males, cut the testes, grind the testicles, wrap the cut testes with a 100-mesh sieve, squeeze the semen into the egg container, and stir for 5 minutes. Wash the testicles with blood to remove residuals and blood stains. The fertilized eggs are incubated in a temperature-controlled incubator or indoors. Regardless of the number of eggs, at least two or more males should be inseminated. Temperature control hatching water depth of about 10 cm is appropriate, in the middle should often change the water, but the temperature should not exceed 4 °C. The higher the water temperature, the shorter the incubation time. It is advisable to use a concrete tank for the cultivation of fry. A small amount of manure water should be properly applied in the tank for the propagation of silkworms and the water surface should be stocked with water hyacinth and other aquatic reproductive materials. The fry stocking density is about 200 per square meter. After 1 to 2 months, when the seedlings grow to about 10 centimeters, they can be moved to a breeding pond.
Next Article
Processing of rare wild vegetables (leaf celery)