The wintering period in Brazil is relatively short in the south and longer in the north, and in the eastern China from November to April in the second year, it lasts for half a year. During the entire wintering period, whether Brazil can safely survive the winter and maintain a good constitution does not affect the reproductive production in the second year, which is closely related to the quality of day-to-day management. If the husbandry and management work is slightly neglected, it may lead to the death of a large number of overwintering fish. Therefore, there must be someone responsible for the feeding and management during wintering. The winter management of brazilian bran is focused on the following aspects.
(I) Management of Brazilian bran from the rearing pond to the overwintering pool at the beginning of winter, and the fish is relatively easy to be injured due to the operation of the pond pulling and during the transportation. Therefore, before entering the pool should first use 1-2 mg / l methylene blue bath after 30 minutes disinfection into the pool, if possible, first increase the water temperature, preferably around 25 °C, until the fish adapt to the wintering pool environment After the food is normal, the temperature of the pool water is adjusted to the temperature of the overwintering water. The temperature of the fingerling pool can be maintained at about 20-23°C. In order to strengthen the cultivation of broodstock, the temperature of the broodstock pool can be adjusted to 22-26 °C according to the actual situation. One week into the pool, Brazil was the peak of death. It was discovered that the dead fish should be removed in time to prevent deterioration of the pool water and further fish diseases. Keep changing the water about 30% every day, but be careful when changing the water temperature difference should not be too large.
(b) Daily management
1. Feed selection and feeding of Brazilian quail vegetative omnivorous fish, so the feed requirements are not high, in addition to the Brazilian quail special feed, can also be used general squid or squid feed. Feeding amount of brazilian bran is different at different water temperatures and different growth stages. For overwintering fish species, they are required to grow properly and overwintering smoothly. The water temperature is controlled at 20-23 °C, and the daily feed is about 3%. It is fed 3 times a day and fed at 8 o'clock, 12 o'clock and 16 o'clock respectively. For overwintering adult fish, wintering is only required and water temperature is controlled. At 18-21 °C, daily feed was 1%-2%, feeding twice a day, feeding at 9 o'clock and 15 o'clock respectively; and for overwinter broodstock, gonadal development during wintering for its second year Successful reproduction has a decisive role. Therefore, it should be carefully managed, the water temperature should be controlled at 22-26°C, and the daily feed should be 3%-5%. It should be fed once a day and in the afternoon. It should be fed at 9 o'clock and 15 o'clock respectively. Feed 1/3 of the total amount of the day and feed 2/3 of the whole amount in the afternoon.
Feeding of feed during the winter period is the same as during the pond cultivation, and the "four timing" principle of "time, fixed point, quantitative, and qualitative" should be adhered to. The food platform was set up in the wintering pool, and the food intake was checked daily. The amount of feed was adjusted according to the changes in water quality and water temperature.
2. Adjusting the water quality of wintering ponds will directly affect the feeding, growth, development, and survival of Brazilian bran. In the wintering pool, the water is generally not frequently changed for the purpose of heat preservation, and the feces and residual baits accumulated in the pool are continuously consuming the dissolved oxygen in the water, and at the same time, they decompose and release some toxic substances, which affect the feeding and growth of the fish. Therefore, we must always observe and measure the water quality, and regularly discharge the pollutants. The method of sewage disposal is relatively simple. When changing the water, sweep the dirt to the drain outlet. If there are more residual bait in the pool, the residual bait can be sucked out by siphoning.
Although the suffocation point of Brassica rapa is relatively low, in order to make full use of the wintering pond, the stocking density is generally high. Therefore, an aerator or other oxygen-adding equipment should be installed in the wintering pond to prevent the water quality from deteriorating. It should be turned on every 4 hours for half an hour. To ensure that there is sufficient dissolved oxygen in the pool water, to ensure the normal feeding of Brazilian bran.
3. Specialist management, responsibility to the people during the entire winter period, there must be someone on duty management, observe the daily record of fish feeding activities, measure and regulate water temperature, timely feeding, remove residual baits, feces. Pay attention to changes in water quality, and increase oxygen and water in time. If it is found that fish often upstream alone, around, or food intake suddenly reduced, should promptly check the fish, analyze water quality, measure water temperature, identify the cause and pathogens, and take timely treatment measures.
4. Fish Disease Prevention During wintering in Brazil, due to high stocking density, water temperature and water quality are prone to change. If management measures cannot keep up, fish diseases can easily be infected. Usually every other week with bleaching powder l mg / l Quanchiposa, or methylene blue 0.2 mg / l Quanchiposa.
(I) Management of Brazilian bran from the rearing pond to the overwintering pool at the beginning of winter, and the fish is relatively easy to be injured due to the operation of the pond pulling and during the transportation. Therefore, before entering the pool should first use 1-2 mg / l methylene blue bath after 30 minutes disinfection into the pool, if possible, first increase the water temperature, preferably around 25 °C, until the fish adapt to the wintering pool environment After the food is normal, the temperature of the pool water is adjusted to the temperature of the overwintering water. The temperature of the fingerling pool can be maintained at about 20-23°C. In order to strengthen the cultivation of broodstock, the temperature of the broodstock pool can be adjusted to 22-26 °C according to the actual situation. One week into the pool, Brazil was the peak of death. It was discovered that the dead fish should be removed in time to prevent deterioration of the pool water and further fish diseases. Keep changing the water about 30% every day, but be careful when changing the water temperature difference should not be too large.
(b) Daily management
1. Feed selection and feeding of Brazilian quail vegetative omnivorous fish, so the feed requirements are not high, in addition to the Brazilian quail special feed, can also be used general squid or squid feed. Feeding amount of brazilian bran is different at different water temperatures and different growth stages. For overwintering fish species, they are required to grow properly and overwintering smoothly. The water temperature is controlled at 20-23 °C, and the daily feed is about 3%. It is fed 3 times a day and fed at 8 o'clock, 12 o'clock and 16 o'clock respectively. For overwintering adult fish, wintering is only required and water temperature is controlled. At 18-21 °C, daily feed was 1%-2%, feeding twice a day, feeding at 9 o'clock and 15 o'clock respectively; and for overwinter broodstock, gonadal development during wintering for its second year Successful reproduction has a decisive role. Therefore, it should be carefully managed, the water temperature should be controlled at 22-26°C, and the daily feed should be 3%-5%. It should be fed once a day and in the afternoon. It should be fed at 9 o'clock and 15 o'clock respectively. Feed 1/3 of the total amount of the day and feed 2/3 of the whole amount in the afternoon.
Feeding of feed during the winter period is the same as during the pond cultivation, and the "four timing" principle of "time, fixed point, quantitative, and qualitative" should be adhered to. The food platform was set up in the wintering pool, and the food intake was checked daily. The amount of feed was adjusted according to the changes in water quality and water temperature.
2. Adjusting the water quality of wintering ponds will directly affect the feeding, growth, development, and survival of Brazilian bran. In the wintering pool, the water is generally not frequently changed for the purpose of heat preservation, and the feces and residual baits accumulated in the pool are continuously consuming the dissolved oxygen in the water, and at the same time, they decompose and release some toxic substances, which affect the feeding and growth of the fish. Therefore, we must always observe and measure the water quality, and regularly discharge the pollutants. The method of sewage disposal is relatively simple. When changing the water, sweep the dirt to the drain outlet. If there are more residual bait in the pool, the residual bait can be sucked out by siphoning.
Although the suffocation point of Brassica rapa is relatively low, in order to make full use of the wintering pond, the stocking density is generally high. Therefore, an aerator or other oxygen-adding equipment should be installed in the wintering pond to prevent the water quality from deteriorating. It should be turned on every 4 hours for half an hour. To ensure that there is sufficient dissolved oxygen in the pool water, to ensure the normal feeding of Brazilian bran.
3. Specialist management, responsibility to the people during the entire winter period, there must be someone on duty management, observe the daily record of fish feeding activities, measure and regulate water temperature, timely feeding, remove residual baits, feces. Pay attention to changes in water quality, and increase oxygen and water in time. If it is found that fish often upstream alone, around, or food intake suddenly reduced, should promptly check the fish, analyze water quality, measure water temperature, identify the cause and pathogens, and take timely treatment measures.
4. Fish Disease Prevention During wintering in Brazil, due to high stocking density, water temperature and water quality are prone to change. If management measures cannot keep up, fish diseases can easily be infected. Usually every other week with bleaching powder l mg / l Quanchiposa, or methylene blue 0.2 mg / l Quanchiposa.
There are different packagings cans, sachet and drum. We can meet your needs for processing and production. For Drum Tomato Paste, it is in 220L aseptic bag in steel drum. you can choose different specifications 28-30%, 30-32%, 36-38%, etc. Welcome you to make inquiries to our factory, I hope we can set up long-term cooperation!
Drum Tomato Paste
Drum Tomato Paste,Wholesale Tomato Paste,Fresh Tomato Paste,Bulk Tomato Paste,36-38 Tomato Paste in Barrel,Cold Break and Hot Break Tomato Paste
Hebei Tomato Industry Co., Ltd. , https://www.hebeitomato.com