What feed is better to give shrimp during the liver transition period?
Generally, when small shrimp have been stocked and farmed for about 18 days (15 days for mid-season or late-season shrimp), the seedlings have already grown into small shrimp of 3-4cm. At this point, liver development enters the liver transition period, which is the most important period for the sound functioning of the shrimp liver. So, what to feed shrimp during liver transition?
1. What to feed shrimp during liver transition?
During the shrimp liver transition, some animal-based feed can be appropriately given, such as rotifers, crushed snails, mussels, and slaughterhouse offal, etc. Some phytoplankton can also be added, for example: diatoms, euglenoids, etc. In addition, tape grass and hydrilla can serve both as habitat during the shrimp liver transition period and as natural bait.
2. What are the main factors affecting the shrimp liver?
(1) Pond environment:
Toxic and harmful substances produced by the deterioration of water quality and bottom sediment (such as ammonia nitrogen, hydrogen sulfide, nitrite, methane, heavy metals, etc.) directly damage the shrimp liver, reduce the liver's defensive capacity, and thereby trigger various diseases.
(2) Insufficient nutrients needed by the liver:
For example, insufficient or imbalanced nutrients such as fats, proteins, carbohydrates, and vitamins can affect the normal growth and functioning of the liver, block normal cell metabolism, and make the liver prone to lesions.
(3) Abuse of chemical drugs:
Antibiotics, disinfectants, and insecticides all directly damage the liver.
(4) Pathogenic bacteria and viruses:
The toxicity of pathogenic bacteria and viruses to the liver and even the entire organism is devastating, for example: white spot disease, yellow head disease, Taura syndrome, luminous vibriosis, etc.
The shrimp liver transition period is an important period for shrimp growth. At this time, they eat feed and grow faster, so attention should be paid to feeding regularly in small amounts and multiple meals.