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27 October, 2007

Know The Condition of Shrimp

As noted in previous discussions one of the characteristics of shrimp aquaculture is the nature of the sensitivity of shrimp. When compared with their natural environment then in the pond which is an artificial habitat, shrimp is very sensitive to changes in the environment either due to natural factors (the changing seasons, weather, water), as well as technical treatment factor within a ponds.

Referring to the above rationale, in addition to knowledge about the criteria of fry quality (previously discussed), other aspects are also important to note is that the knowledge about the condition of the shrimp in a practical way that can be applied directly in the field. This knowledge is needed as a reference in making decisions related to their problems from the shrimp and the treatment needed to be implemented in a timely, appropriate and effective and efficient.

Some parameters that can be used in determining the condition of the shrimp at the time carried out such:

  1. Digestive tract / intestinal.. Through visual observation, the digestive tract / bowel of shrimp can indicate the conditions of shrimp at that time. In normal conditions the digestive tract of shrimp contains a full and did not falter, and color according to the feed consumed at that time. If the digestive tract of shrimp are not under normal conditions, we must observe towards other shrimp samples and if the other samples in the same condition it can be said shrimp serve targeted populations have started to get into trouble. Another thing to watch out for is if the digestive tract / intestinal most shrimp in the population of red, this condition can be interpreted shrimp carcass has been consumed by other shrimp. This indicates there has been "mass death" of shrimp in the population caused by an illness or other factors.

    Observation of the digestive tract / intestinal of shrimp practically can be done directly and will be more clearly seen when viewed under the light / sunlight

  2. Hepatopancreas. In the previous explanation has been mentioned that this organ is identical to the stomach is the center of shrimp and shrimp digestive located in the head and in normal condition formed triangle-shaped and brownish color. In certain cases the condition hepatopanchreas shrinking size / smaller and pale, white, or blue. These conditions indicate the shrimp have been exposed to a problem and needs to give cultivation technical treatments in accordance with these conditions.

    Like the digestive tract / intestinal of shrimp, the hepatopanchreas observation practically can be done directly and will be more clearly seen when viewed under the light / sunlight

  3. Shrimp body suppleness. Observation of the suppleness of the body of shrimp can be done via pressing the shrimp body by using two fingers. In normal circumstances the body will feel rubbery shrimp, in contrast to the troubled condition of the shrimp body will feel hollow and soft.
  4. Shell color of shrimp, Shell color is closely related to pond water quality at the time. Shrimp shell is composed by chitin that is skin-forming substance consisting of calcium and protein. Chitin is very sensitive to changes in the surrounding environment, so that when the shrimp do moulting (shell replacement) will adjust the color of shrimp pond water quality at that time. In normal conditions the shrimp shell will look clean and shiny. Conditions that need to be aware of is if the shell is reddish shrimp (red gill disease indications), there is a white spot (indicative of white spot disease), and shrimp shell is blue (an indication of lack of oxygen, nutrients and nutrient feed less). Another condition to consider water quality is associated with mossy shells caused by the relatively high water clarity allowing moss to grow on the pond bottom.

  5. Gills of shrimp. These organs are parameters that need to be careful in observing the condition of the shrimp. In normal circumstances, the gills of shrimp in a clean condition and there is no dirt in it. Thing that needs to be aware of is that if the gills of shrimp was dirty (lots of dirt) and the reddish color and relatively passive indicating shrimp have been exposed to red gill.

  6. Completeness of the organs. Shrimp organs under normal conditions is relatively complete and perfect. Some situations that need to be examined is if the shrimp are found in the porous condition of the tail, the antenna / antennae broken, broken leg, torn skin and other organs that have been lost. This condition can be caused by cannibalism or disease.

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  7. Shrimp Fry Quality Criteria

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