Process of Molting in Shrimp and How to Handle It
The molting process is often the thing that most farmers worry about. Because shrimp will be more susceptible to disease in this phase, however, the molting process will always occur as the life of the shrimp develops.
WhatIs Molting in Shrimp?
In simple terms, molting can be referred to as replacing the outer shell layer in shrimp. During the molting process, after the outer shell layer of the shrimp is shed, the same layer of skin will grow to replace it.
Molting Process in Shrimp
The molting process in vannamei shrimp is divided into four stages: post-molt, molting, inter-molt, and pre-molt.
1. Post Molt
Post-molt is the phase where the shrimp has just experienced the release of the exoskeleton from the previous molt process. Usually, in this phase, the shrimp will absorb a lot of water to strengthen their new cuticles.
2. Molting
Molting is the phase when the shrimp begins to shed its outer shell. For the shrimp’s exoskeleton to fall off entirely, the shrimp will relax its muscles and slowly start to come out of its old body.
3. Inter-Molt
The shrimp exoskeleton will harden during the inter-molt phase because the shrimp absorbs more protein and minerals during this phase. Meanwhile, shrimp appetite is not disturbed and even tends to increase.
4. Pre-Molt
Pre-Molt is when the shrimp prepares for the following molting process. The cuticle layer will slowly grow and be visible to the naked eye. Usually, in this phase, the shrimp appetite will decrease than usual.
How Often Does Molting Occur?
Under healthy conditions, adult shrimp molt or change their skin every 3 to 4 weeks. However, younger shrimp will change their skin more frequently, every 1 to 2 weeks, to be precise. This is because young shrimp experience a faster growth process.
Meanwhile, replacing old shells with new shells in shrimp only takes a few hours.
How to Handle Shrimp When Molting
In a way, molting is a reasonably crucial phase in shrimp farming. The reason is shrimp that fail in the molting phase will die. Therefore farmers need to ensure the molting process runs smoothly.
In this case, several technical conditions must be considered for the smooth running of the molting process, starting from the quality of pond water maintained, the level of calcium and other minerals in the water remaining stable, and so on.
In addition, remember to adjust the shrimp feed given. Remember, during the inter-molt phase, the shrimp’s appetite will increase. Meanwhile, during the pre-molt phase, shrimp appetite tends to decrease.
Cre: delosaqua.com
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Ngày đăng : 20/01/2025
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