Both Xiangyun and Xiangyunjing are triploid puffer and squid produced by artificial hybridization between the parent of the tetraploid fish and the female parent of the diploid carp and carp. Therefore, the fish of Xiangyun and Xiangyun need specialized techniques. Personnel and specialized equipment for production. At present, China's Xiangyun Mountain and Xiangyun Mountain are all produced and supplied by Hunan Xiangyun Biotechnology Co., Ltd., which owns the independent intellectual property rights of Xiangyunjing and Xiangyunjing. There are no other seed production sites in the country, and the majority of producers It is necessary to guard against the purchase of counterfeit and inferior seed to affect production.
C. yunnanensis and C. yunnanensis have strong resistance to diseases, and they are easier to breed with low temperature and low oxygen tolerance. However, seedlings are precious and it is crucial to improve the survival rate of the seedlings. At the same time, the cultivation stages of the seedlings of C. yunnanensis and clams are in the early spring, low temperatures and rainy seasons, which poses great difficulties for the seedling cultivation and must be combined with their breeding characteristics. Only when nurturing can get a high survival rate, the following points are noted.
First, the preparation of the fish before the pool
1, strict disinfection of seed ponds due to seedlings during the incubation phase of the water temperature is relatively low, the growth of seedlings of C. yunnanensis is relatively slow. If the clear pond does not completely give disease organisms a chance to directly affect the survival rate of the seedlings of C. sichuanensis or C. oleifera and even lead to “grain-free harvestâ€, it is necessary to disinfect the four-species fish seedlings pool with drugs such as quicklime and bleaching concentrate. The standard is as strict as the disinfection of clear ponds, and before emptying, the net is checked again.
2. Adherence to the manure underwater pool As the Xiangyun sculpin and Xiangyun bonito fish fry were fed with plankton in the early stage, the cloudy and rainy weather during flowering caused the plankton breeding to be slow, and the lack of fry food would affect the seedlings of Xiangyun and Xiangyun. The species grows. Therefore, 5 to 7 days before the fry drop, new water should be added and basal fertilizer should be properly applied to make the pool water green or brownish yellow in the lower pool. Water quality of tender fertilizer is very beneficial to the growth of fry and increase the survival rate, but it is necessary to prevent the survival rate of the “old water†(that is, over-fertilization or old pond water) affecting the lower pool.
Second, summer flower cultivation management matters needing attention
1. The appropriate stocking density is suitable for the rearing ponds of Xiangyun Aquilegia and Eel larvae with a density of 80,000 to 100,000 tails per 667 feet. If special circumstances need to increase the stocking density should also be dialed as soon as possible in order to avoid excessive density affect the growth rate and survival rate.
2, when the next pool to pay attention to the temperature difference Xiangyun wolfberry, Xiangyun larvae during the lower pool temperature changes, the fish pool should pay special attention when the pool water and the temperature of the fry bag in the water does not exceed 2 °C, such as excessive temperature, the temperature should be gradually adjusted After the pool is uniform, the difference between the water temperature at the bottom of the pool and the surface (especially noticeable when the rain turns sunny) should be prevented. If the temperature difference is too large, the fish will be killed in a large number without adjusting.
3, timely supplement concentrate Xiang Yun, Xiang Yun fish seedlings lower pool 8 to 10 days that began to change the food, from plankton-based food to artificial feeding bait mainly, then pay attention to in addition to daily fertilizer and water management, should be gradually Appropriate amount of wheat, soaked cakes, or thicker soymilk is added to meet its food conversion needs. If the fry is found swimming along the pool, it is necessary to immediately feed the concentrate along the edge of the pool to prevent the fry's disease from affecting the survival rate.
Third, Xiangyun 鲫, Xiangyun 鲤 片 片 片 ç®¡ç† æ¹˜ 湘 湘 鲫 鲫 湘 湘, 湘 鲤 湘 鲤 鲤 鲤 鲤 鲤 生长 生长 生长 生长 生长 生长 鲤 鲤 鲤 鲤 鲤 鲤 鲤 鲤 鲤 鲤 鲤 鲤 直接 è¿˜å¯ è¿˜å¯ è¿˜å¯ è¿˜å¯ è¿˜å¯ è¿˜å¯ è¿˜å¯The following methods are mainly used.
1. The area of ​​the spring pool for single-cultivation is generally not to exceed 0.67 hectares, and the water depth is 1.5-2 meters. It is advisable to enter and drain water, and strictly disinfect the fish before putting it into use. Generally, 8000 to 10,000 tails of summer fishes are stocked per acre. In addition to 10% of cod, 5% grass, and squid summer flowers, the pool can no longer be used with other cockroaches and squid. Because Xiang Yun and Xiang Yun are mild temperament, collocations with other ferocious and squid species that catch more food will seriously affect the growth rate. If you feed artificial bait and collaborate with aeration facilities, you can produce 400 to 600 kg of Xiangyun Qu and Qichun tablets per 667, and 100 kg of other fish.
2. Polyculture mode Generally, as long as the spring pool is not used for feeding other quail and carp species, it can be mixed with carassius amurensis and summer flowers without affecting the normal production of other fish. It is advisable to put 500 to 1,000 tails per 667 投放. , Out of survival rate of up to 90%.
3. The cage culture method can use the cage to cultivate spring fish species by using the characteristics of Xiangyun crickets, temperate temperament and intensive cultivation. The cage should be set on a large surface of the water to avoid waves, the water quality should be relatively fresh, and there should be micro-flowing water for better results. The cages are suitable for small and medium-sized cages. The mesh size must be matched with the specifications of the fish species to be put in. The bottom of the tank should be at least 2 meters away from the bottom of the water, and 600 to 800 fish species can be placed per square meter of cages. Sticking to the principle of “Four Dedications†every day, it is usually fed 4 to 6 times a day. A small amount can reduce food waste several times. Management must be diligent, detailed, strict, and do a good job of preventing escape, damage, and disease prevention. Generally, 30 to 40 kg of spring fish can be produced per square meter. Similarly, the effects of high-density industrial breeding of Xiangyunjing and Qichun films are also significant.
The genus Xiangyun and squid have few diseases, but if they are not well stocked, white head and white beak disease and parasitosis can also occur when the fish is poorly cultured or high-density culture. As long as the medicine is cured in time, it is not difficult to cure, and the general survival rate is Can reach more than 90%.
C. yunnanensis and C. yunnanensis have strong resistance to diseases, and they are easier to breed with low temperature and low oxygen tolerance. However, seedlings are precious and it is crucial to improve the survival rate of the seedlings. At the same time, the cultivation stages of the seedlings of C. yunnanensis and clams are in the early spring, low temperatures and rainy seasons, which poses great difficulties for the seedling cultivation and must be combined with their breeding characteristics. Only when nurturing can get a high survival rate, the following points are noted.
First, the preparation of the fish before the pool
1, strict disinfection of seed ponds due to seedlings during the incubation phase of the water temperature is relatively low, the growth of seedlings of C. yunnanensis is relatively slow. If the clear pond does not completely give disease organisms a chance to directly affect the survival rate of the seedlings of C. sichuanensis or C. oleifera and even lead to “grain-free harvestâ€, it is necessary to disinfect the four-species fish seedlings pool with drugs such as quicklime and bleaching concentrate. The standard is as strict as the disinfection of clear ponds, and before emptying, the net is checked again.
2. Adherence to the manure underwater pool As the Xiangyun sculpin and Xiangyun bonito fish fry were fed with plankton in the early stage, the cloudy and rainy weather during flowering caused the plankton breeding to be slow, and the lack of fry food would affect the seedlings of Xiangyun and Xiangyun. The species grows. Therefore, 5 to 7 days before the fry drop, new water should be added and basal fertilizer should be properly applied to make the pool water green or brownish yellow in the lower pool. Water quality of tender fertilizer is very beneficial to the growth of fry and increase the survival rate, but it is necessary to prevent the survival rate of the “old water†(that is, over-fertilization or old pond water) affecting the lower pool.
Second, summer flower cultivation management matters needing attention
1. The appropriate stocking density is suitable for the rearing ponds of Xiangyun Aquilegia and Eel larvae with a density of 80,000 to 100,000 tails per 667 feet. If special circumstances need to increase the stocking density should also be dialed as soon as possible in order to avoid excessive density affect the growth rate and survival rate.
2, when the next pool to pay attention to the temperature difference Xiangyun wolfberry, Xiangyun larvae during the lower pool temperature changes, the fish pool should pay special attention when the pool water and the temperature of the fry bag in the water does not exceed 2 °C, such as excessive temperature, the temperature should be gradually adjusted After the pool is uniform, the difference between the water temperature at the bottom of the pool and the surface (especially noticeable when the rain turns sunny) should be prevented. If the temperature difference is too large, the fish will be killed in a large number without adjusting.
3, timely supplement concentrate Xiang Yun, Xiang Yun fish seedlings lower pool 8 to 10 days that began to change the food, from plankton-based food to artificial feeding bait mainly, then pay attention to in addition to daily fertilizer and water management, should be gradually Appropriate amount of wheat, soaked cakes, or thicker soymilk is added to meet its food conversion needs. If the fry is found swimming along the pool, it is necessary to immediately feed the concentrate along the edge of the pool to prevent the fry's disease from affecting the survival rate.
Third, Xiangyun 鲫, Xiangyun 鲤 片 片 片 ç®¡ç† æ¹˜ 湘 湘 鲫 鲫 湘 湘, 湘 鲤 湘 鲤 鲤 鲤 鲤 鲤 生长 生长 生长 生长 生长 生长 鲤 鲤 鲤 鲤 鲤 鲤 鲤 鲤 鲤 鲤 鲤 鲤 直接 è¿˜å¯ è¿˜å¯ è¿˜å¯ è¿˜å¯ è¿˜å¯ è¿˜å¯ è¿˜å¯The following methods are mainly used.
1. The area of ​​the spring pool for single-cultivation is generally not to exceed 0.67 hectares, and the water depth is 1.5-2 meters. It is advisable to enter and drain water, and strictly disinfect the fish before putting it into use. Generally, 8000 to 10,000 tails of summer fishes are stocked per acre. In addition to 10% of cod, 5% grass, and squid summer flowers, the pool can no longer be used with other cockroaches and squid. Because Xiang Yun and Xiang Yun are mild temperament, collocations with other ferocious and squid species that catch more food will seriously affect the growth rate. If you feed artificial bait and collaborate with aeration facilities, you can produce 400 to 600 kg of Xiangyun Qu and Qichun tablets per 667, and 100 kg of other fish.
2. Polyculture mode Generally, as long as the spring pool is not used for feeding other quail and carp species, it can be mixed with carassius amurensis and summer flowers without affecting the normal production of other fish. It is advisable to put 500 to 1,000 tails per 667 投放. , Out of survival rate of up to 90%.
3. The cage culture method can use the cage to cultivate spring fish species by using the characteristics of Xiangyun crickets, temperate temperament and intensive cultivation. The cage should be set on a large surface of the water to avoid waves, the water quality should be relatively fresh, and there should be micro-flowing water for better results. The cages are suitable for small and medium-sized cages. The mesh size must be matched with the specifications of the fish species to be put in. The bottom of the tank should be at least 2 meters away from the bottom of the water, and 600 to 800 fish species can be placed per square meter of cages. Sticking to the principle of “Four Dedications†every day, it is usually fed 4 to 6 times a day. A small amount can reduce food waste several times. Management must be diligent, detailed, strict, and do a good job of preventing escape, damage, and disease prevention. Generally, 30 to 40 kg of spring fish can be produced per square meter. Similarly, the effects of high-density industrial breeding of Xiangyunjing and Qichun films are also significant.
The genus Xiangyun and squid have few diseases, but if they are not well stocked, white head and white beak disease and parasitosis can also occur when the fish is poorly cultured or high-density culture. As long as the medicine is cured in time, it is not difficult to cure, and the general survival rate is Can reach more than 90%.
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