If you want to make squid grow good and fast, you must do a good job in feed management of squid. The author proposes several management experiences for reference.
First, the impact of water temperature on feeding
1, the temperature difference between morning and evening will affect the day of the eel's bait feed, in the non-temperature pool within 3 °C within the water temperature difference is normal, will not affect the eel feed. When the temperature of the water exceeds 4°C during the season, the feeding of common carp is affected. When this happens, it is better to reduce the bait rate and reduce the amount of feed by 30% to 50% to avoid discomfort.
Therefore, the author here suggests that farmers should postpone the insulation shed during the spring and summer alternations, and cover the insulation shed in advance when the fall and winter season alternates, so that the temperature difference between the daily water produced during the season can be avoided.
2. The main influence of seasonal temperature difference is the seasonal change of natural water temperature. We must adjust the appropriate feeding rate according to the change of natural water temperature to ensure that the eel has been in the most vigorous feeding state. Under normal conditions, the bait rate is 2.5% to 3% when the water temperature is between 24°C and 29°C. When the water temperature exceeds 30°C, the bait rate is preferably reduced to 2.2% to 2.6%. When the water temperature is between 20°C and 24°C, The bait rate is 1.6%-2.5%; when the water temperature is 14°C-20°C, the bait rate is 1%-1.6%; when the water temperature is lower than 14°C, the bait rate should also drop to 0.4%-1.0%. The above is the approximate law of the bait rate and water temperature, and each market can adjust slightly according to its own situation.
Second, the relationship between the size of the carp and the amount of feeding
In general, the feeding rate of squid decreases as the squid grows. In the white seedling stage, the amount of white litter should be 5%-6% of carcass weight; in the dark stage, the size of the carp is approximately 500-80p, and the bait rate should be reduced to 5%. 3.5%; while the sturgeon grows to a maximum of 80-50p, the bait rate is preferably controlled at 3.5%-2.5%; when the cod comes within 15p, the feed rate should drop to 2.5%-1.5%.
Third, carp feeding and water quality are also closely related
1. The water environment requires that the water exchange volume in the intensive culture pool should not change too much or the algae phase in the earthen pond should not produce mutations, etc. If the water environment changes too much, it will cause severe reduction of the carp's feeding and even produce no feeding.
2. The changes in physical and chemical factors in water are mainly caused by the deterioration of water quality, mainly due to the excessive levels of harmful substances such as ammonia nitrogen and nitrite nitrogen in water. If the ammonia in the water exceeds 2ppm, the nitrite nitrogen exceeds 0.2ppm, especially if the nitrite nitrogen exceeds the standard, the oxygen of the squid body itself will be abnormal, causing the squid to eat abnormally and not to take power. There is also the best dissolved oxygen in the water can be higher than 5ppm, if less than 3ppm, it will cause abnormal feeding of carp. Therefore, there is a need for a rapid water quality test kit in the farm to conduct regular water quality tests.
Fourth, the impact of light on the feeding of carp
The strong and weak influence of light is mainly the habit of starting from a small age. We don't want to change it at any time after we have formed habits. Normal squid generally prefers a slightly darker water environment.
5. The abrupt change in weather will also reduce the amount of food consumed by the eel.
1. When the weather is suddenly hot, the squid will feel very annoyed and may even have a temporary lack of oxygen. Therefore, in this case, at least half of the feeding amount should be reduced.
2, when the cold air suddenly comes, the carp will also produce discomfort, then reduce the amount of feed more than 1/3 of the feed.
3. When it is raining or after a heavy rain, it is best to stop for a meal and conduct a complete disinfection of the water to reduce some of the adverse effects of the stress response of the catfish.
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