52results about How to "Guaranteed hatch rate" patented technology

The invention provides a purification and expanding propagation method for propylaea japonica. The method comprises the steps that 1, the propylaea japonica is fed in an insect feeding cage, wherein horsebean seedlings are planted and enough pea aphids are fed in the insect feeding cage, a flowerpot of horsebean seedling planting is wrapped with a preservative film, and the number of the stretching blades of the horsebean seedlings is as little as possible so that most of spawn is spawned on the preservative film; 2, the spawned preservative film is collected, and larvae are hatched in a warm and humid condition; 3, the larvae are taken out in time and put into another insect feeding cage to be fed, after the larvae pupate, the spawn collecting operation in the step 2 is stopped; 4, after the spawn in another insect feeding cage in the step 3 is collected through the preservative film, the step 2, the step 3 and the step 4 are repeated until five generations, and the purified spawn is obtained; 5, after the purified spawn is hatched, expanding propagation in the insect feeding cage is conducted. The purification and expanding propagation method is beneficial to purify the generation number of propylaea japonica in the field and reduce newly hatched larvae and imagoes feeding of the spawn indoors, the operation is easy, the cost is low, and purification and expanding propagation for propylaea japonica indoors can be completed effectively.

The invention relates to a paper bag hatching method and paper bag hatching equipment. According to the method, when eggs are moved to a hatcher ray, hatching eggs are placed into paper bags till young birds are grown; the hatching eggs placed in the same paper bag are from the same source; and the hatching eggs which are from the same source and in the same paper bag are from the same family. The equipment comprises paper bags, wherein each paper bag comprises a front side, a back side, a left side, a right side, a bottom side and a top cover; the top cover is openable; and the paper bags are made of a breathable material or have one or a plurality of vents on at least one side. The method and the equipment facilitate the differentiation of young birds from different lines and families, prevent young birds from different lines and families pecking one another and indirectly contacting each other through dung and villus, and thus effectively inhibit horizontal spread of diseases such as avian lymphoid leucosis among different young birds.

The present invention provides an artificial large-scale hatching method for the roe of the Tibetan bifidus cereus, the artificial large-scale hatching method, which is characterized in that the fertilized eggs are placed in the hatching frame for hatching in flowing water before the embryo formation period of the fertilized eggs ; After the fertilized eggs develop to the stage of embryonic formation, the dead eggs are removed, and the fertilized eggs are moved into the incubator to hatch. The hatching method has a high survival rate of hatched eggs and high production efficiency, and can be produced on a large scale in Tibet.