Awkward habits
The domesticated quail is domesticated and harvested by wild pheasants and is the smallest poultry species in the poultry industry. The shape of the house cubs is similar to that of the chicks, with a short head and a long tail. After a long period of genetic improvement, there is a big difference between the family and the wild pheasant. For example, the color of the family pupa becomes deeper, the body becomes larger, the body weight increases, and the fecundity increases. However, the ability to hug nests and migrate is lost. Scorpion females are slightly larger than males. For adult quail eggs, body weight is 100-150g, meat type is 200-250g, and egg weight is 8-10g.
1. Overview of genetic resources in China
1.1. Species China has abundant wild maggot resources. Wild common pheasants and wild Japanese quails live in many regions. They have similar shapes and are considered to be the same species for a long time. However, both of them have different vocalizations, and no hybrids can be produced under natural conditions. Even the hybrids produced under human intervention are still sterile. This fully shows that there is obvious reproductive isolation between the two. Therefore, the North American bird scholars proposed in 1983 that they should be treated as different species and have long been documented in the Chinese literature.
1.2. Distribution The distribution of two species of wild fleas in our country is widespread, with wild Japanese crickets predominating. Wild common storks breed in Xinjiang, wintering in southern Tibet and southwest of Ludu: Wild Japanese quails live mainly in Inner Mongolia and the northeast. In some areas, the distribution of the two also overlaps. They are migratory birds in most parts of our country, but in some areas they are resident birds such as the middle and lower reaches of the Yangtze River. The habitat of wild pelicans is generally empty plains, shores of streams, dwarfed foothills or bushes.
1.3. The migration rule is a kind of comparatively weak migratory ability in the juveniles. Wings are short and cannot fly or fly for a long time. They tend to be nocturnal, and they like to migrate at night. The two species of wild pheasants breed in western Xinjiang and eastern Inner Mongolia from June to July each year, and then migrate southwards to winter. According to preliminary investigations and researches, there are three possible south migration routes for the two species of wild sea otters: 1 Moving directly from Inner Mongolia and Xinjiang to southern Liaoning, Hebei Yellow River and Tibetan Ludu wintering; , Shaanxi, and Henan continue to move south to reach the middle and lower reaches of the Yangtze River; 3 from Changdu to Yunnan and Guizhou provinces to the southeast coastal areas. Every year from March to April, it flies back to Xinjiang, Inner Mongolia and Other places for breeding. Moving distance is about 400-1000km. Of course, there are also breeding or local migrations that remain in the area because these crickets prefer to build nests on the warm, wet grasses in the area.
2. Status of aquaculture in China
2.1. Feeding Scale Although the breeding time in China is relatively short, it has been rapidly developed since 1970. So far, we have not only introduced new types of egg and meat-type furniture, but also established special varieties. The production bases have also been developed on a large scale. There are about 200 million breeding animals, accounting for one-fifth of the world's total, and it has become the world’s largest conservation country. In addition to supplying high-end hotels and restaurants, Jiahe products are also processed into canned and preserved eggs, which are widely enjoyed by consumers.
2.2. Major domestic glutinous varieties, strains and supporting systems The breeding industry in China has experienced decades of development. Not only has there been unprecedented development in the number of breeds, but also a variety of breed categories. Among them, egg types include Japanese oysters, artichokes, Chinese white feather pheasants, yellow feather pheasants, self-male-male kits, and Estonian quail; meat types mainly include DFAC FM broth, Chinese white gar Weimai deterrence.
2.3. The biological characteristics of nymphs 鹌鹑 prefer warm and quiet growth environment, rapid growth and development, early sexual maturity, and strong egg production, but the fertilization rate is low, the nesting is poor, and it is also sensitive to external stimuli.
2.4 Reasons for the rapid development of the breeding industry
2.4.1 The small amount of investment in the breeding area does not have a large area. Even large-scale breeding farms occupy much less land and buildings than other poultry. Due to the adoption of multi-layer cage culture equipment in the house, the breeding density is large, so construction, facilities, and capital investment are much lower than other poultry. The demand for labor is also not very high and does not require heavy physical labor. In addition, the family's adaptability and resistance to disease, the cost of drugs used for epidemic prevention is also very low.
2.4.2 Many Outputs Regardless of egg type or meat type, 40 to 50 days can be matured and production begins. The meat type can reach 220g at the age of 42 days and consume only 700g of feed. The egg type has about 270 eggs produced throughout the year and the total weight is 3000g, which is 20 times of its body weight.
2.4.3 Fast turnover of funds Due to the short feeding cycle and low capital investment, the liquidity of each account does not exceed 1.6 yuan, so the capital turnover is much faster than other poultry.
2.4.4 The risk is small Because the farmer's family has the above three advantages, it is not easy to cause economic loss and it does not have to bear too much risk.
It can be seen from the above that wolfberry is a small-scale breeding industry with high production value, fast cash flow, and high economic efficiency. It has strong vitality and broad prospects for development. It is recognized by the international poultry industry that it is bound to become a 21st century breeding poultry. Industry pillar industries.
While seeing the vigorous development of the breeding industry in China, we should also note the drastic decrease in the wild cricket resources in China. Due to the deterioration of the current ecological environment, people’s wanton killing, the number of wild cricket has been greatly reduced, if no measures are taken In the near future, it is likely to become extinct. This will not only negatively affect the current breeding industry, but also reduce the genetic diversity of alfalfa and the loss of improved genetic resources. At present, some scholars at home and abroad have devoted themselves to the research in this area, discussing the evolutionary levels of family and wild hermits, and genetic co-adaptation. On the basis of further research on the hybrid fertility between them, it is hoped that the use of commercial alfalfa to expand the endangered wild alfalfa provides the basis for the evaluation, protection and utilization of alfalfa genetic resources.
Laboratory destoner uses raw material and stones density difference to separate stones from seeds. It is used after seed cleaner & grader processing and Gravity Separator processing. It is normally used for vegetable seeds, grass seeds, flower seeds and other small seeds cleaning. Lab destoner is for fining cleaning to remove the stones, lumps.
Working principle
The destoner worktable is a rectangular structure. The top of lab destoner table is mesh grid, the middle is a perforated aluminum plate, and the bottom is wooden air guiding structure. The hopper is located in middle of this worktable; by adjusting the vibration frequency of the worktable and the bottom blowing air volume to achieve the separation of seeds and heavier impurities. The raw material is rapidly delaminated at the seed feeding location; heavier impurity move along the slanted sides of the rectangle to the upper end, and the lighter seed move to the lower end along the rhomboid. Table vertical length, table vibration frequency, the bottom fan air volume are adjustable to meet the small size seeds, different density seeds, sorting requirements. Lab de stoner brings further study basis data of the small seeds characteristics.
Parameter reference:
|
Name |
Laboratory destoner |
|
Model |
5XQS-L |
|
Capacity |
50 kg/h |
|
Air blower power |
0.37 kw |
|
Vibration power |
0.13 kw |
|
Vibration frequency |
0-600 times/min |
|
Platform inclination angle |
0-3° |
|
Amplitude |
15 mm |
|
Dimension |
1000×700×1440 mm |
1. Feeding hopper
2. Hopper controller
3. Working table
4. Drive system
5. Bottom air blower
6. Control panel
7. Machine frame
Lab Destoner Machine,Laboratory Seed Destoner,Lab Seed Destoner,Lab Grain Destoner
SHIJIAZHUANG SYNMEC INTERNATIONAL TRADING LIMITED , http://www.seedgraincleaner.com