May to June is the time when the wolfberry begins to grow seedlings. The selection of a good seedling is related to the success or failure of raising a quail in the whole year. As the saying goes, "a good half is being planted." Everything starts with a heavy weight, and a good start is half of the success of the breeding. The farmers must grasp the first stage of breeding.
First, what is a good seedling, how to choose the seedlings to be pure Chinese seedlings as the first choice. In East and Southeast Asia, there are many species of Chinese sturgeon, and it is true that the Chinese Yangtze River and Yellow River have grown in two major river systems. Both of them have high nutrition, medicinal and economic value, and they have strong resistance to disease. Their excellent germplasm is the result of natural selection for thousands of years. In some large-scale breeding farms in Guangdong, their parents are basically derived from the Dongting Lake area in the Yangtze River water system. The germplasm resources are authentic.
In addition, it is worth noting that the Chinese sturgeon grows in the “hometown of the hometown†from ancient times to the present and naturally adapts to the specific environmental conditions in the area. However, the Chinese eel has migrated from the tropics to this “other countryâ€. Because of different regions, the climate Differences make it difficult to adapt, resulting in declining physique and easy-to-disease diseases. In the past, the history of many farms "annihilated" is worth learning.
Second, pay attention to the selection of non-inbreeding seedlings scientific experiments and many facts have proved that the inbreeding seedlings inbreeding, prone to deformity, and frail and sick, poor immunity. In many markets nowadays, due to the small scale of breeding and the limited number of close relatives, it is worth noting that many offspring will mate to breed by supplementing their parents.
Third, the correct choice of seed breeding sites There are many farmers in the purchase of seedlings, there are several misunderstandings: First, that the purchase of cheap seedlings can save costs, regardless of whether it is a good seed; Second, that as long as the convenience of the nearest The material can be taken without regard to the big field and small field. As everyone knows, small field conditions are poor, a variety of poor health, mixed with sterile bacteria mixed in a pool of cross-infection, the result "hundred seedlings" got "hundred", because of small loss.
Choosing good seed farms to purchase good seedlings is the beginning and key to successful breeding. Its reason is self-evident. For large-scale, large-scale seed farms, their parents take wild quail originating from their origins, and after introduction, they purify and rejuvenate and implement isolation and culture in line with a set of “good-breed laws†that meet national standards. Inbreeding, and there are sufficient parental resources for non-inbreeding, relatives can avoid alienation. At the same time, due to the large number of seedlings, there is room for selection. The emergence is also relatively neat and uniform. In order to ensure the healthy development of the nation’s aquaculture industry, the Ministry of Agriculture has officially named 25 state-level aquatic progeny and fine seed farms after field inspections, scientific assessments, and expert appraisals. Among them, there are two kinds of Chinese sturgeon seed farms, the Hunan Chinese sturgeon seed farm, and the Shaoxing Chinese sturgeon seed farm in Zhejiang, while the national Chinese sturgeon seed farm is only Guangdong Green Card Industrial Co., Ltd. The establishment of original and improved seed farms at all levels has played a key role in protecting the germplasm resources of Chinese sturgeon.
Fourth, when selecting seedlings, we must understand their health status through sight, touch, and investigation.
1. The body weight of newly hatched juveniles is generally more than 3 g. It is good quality. If the dissatisfaction is less than 3 g, it is due to the fact that their parents are of light weight, are under-aged or malnourished, and are of poor constitution.
2. The color of the juvenile web is orange, and the redder the better. On the contrary, the body is poor in light red or yellow. But after weighing 20 grams, the web turned grey or black as normal.
3. The body is better, the skirt is thicker and straighter, and the skirt is soft and thin, indicating malnutrition. There were no white spots or white spots on the abdomen of the dorsal and ventral limbs. Otherwise, the infected bacteria were found. No disability, lively action, and responsiveness, especially if you gently pull your back leg, it is a good physical condition that can be effectively retracted.
First, what is a good seedling, how to choose the seedlings to be pure Chinese seedlings as the first choice. In East and Southeast Asia, there are many species of Chinese sturgeon, and it is true that the Chinese Yangtze River and Yellow River have grown in two major river systems. Both of them have high nutrition, medicinal and economic value, and they have strong resistance to disease. Their excellent germplasm is the result of natural selection for thousands of years. In some large-scale breeding farms in Guangdong, their parents are basically derived from the Dongting Lake area in the Yangtze River water system. The germplasm resources are authentic.
In addition, it is worth noting that the Chinese sturgeon grows in the “hometown of the hometown†from ancient times to the present and naturally adapts to the specific environmental conditions in the area. However, the Chinese eel has migrated from the tropics to this “other countryâ€. Because of different regions, the climate Differences make it difficult to adapt, resulting in declining physique and easy-to-disease diseases. In the past, the history of many farms "annihilated" is worth learning.
Second, pay attention to the selection of non-inbreeding seedlings scientific experiments and many facts have proved that the inbreeding seedlings inbreeding, prone to deformity, and frail and sick, poor immunity. In many markets nowadays, due to the small scale of breeding and the limited number of close relatives, it is worth noting that many offspring will mate to breed by supplementing their parents.
Third, the correct choice of seed breeding sites There are many farmers in the purchase of seedlings, there are several misunderstandings: First, that the purchase of cheap seedlings can save costs, regardless of whether it is a good seed; Second, that as long as the convenience of the nearest The material can be taken without regard to the big field and small field. As everyone knows, small field conditions are poor, a variety of poor health, mixed with sterile bacteria mixed in a pool of cross-infection, the result "hundred seedlings" got "hundred", because of small loss.
Choosing good seed farms to purchase good seedlings is the beginning and key to successful breeding. Its reason is self-evident. For large-scale, large-scale seed farms, their parents take wild quail originating from their origins, and after introduction, they purify and rejuvenate and implement isolation and culture in line with a set of “good-breed laws†that meet national standards. Inbreeding, and there are sufficient parental resources for non-inbreeding, relatives can avoid alienation. At the same time, due to the large number of seedlings, there is room for selection. The emergence is also relatively neat and uniform. In order to ensure the healthy development of the nation’s aquaculture industry, the Ministry of Agriculture has officially named 25 state-level aquatic progeny and fine seed farms after field inspections, scientific assessments, and expert appraisals. Among them, there are two kinds of Chinese sturgeon seed farms, the Hunan Chinese sturgeon seed farm, and the Shaoxing Chinese sturgeon seed farm in Zhejiang, while the national Chinese sturgeon seed farm is only Guangdong Green Card Industrial Co., Ltd. The establishment of original and improved seed farms at all levels has played a key role in protecting the germplasm resources of Chinese sturgeon.
Fourth, when selecting seedlings, we must understand their health status through sight, touch, and investigation.
1. The body weight of newly hatched juveniles is generally more than 3 g. It is good quality. If the dissatisfaction is less than 3 g, it is due to the fact that their parents are of light weight, are under-aged or malnourished, and are of poor constitution.
2. The color of the juvenile web is orange, and the redder the better. On the contrary, the body is poor in light red or yellow. But after weighing 20 grams, the web turned grey or black as normal.
3. The body is better, the skirt is thicker and straighter, and the skirt is soft and thin, indicating malnutrition. There were no white spots or white spots on the abdomen of the dorsal and ventral limbs. Otherwise, the infected bacteria were found. No disability, lively action, and responsiveness, especially if you gently pull your back leg, it is a good physical condition that can be effectively retracted.
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