Ancho understanding has been described in the foregoing discussion is a tool used to control the feeding programs, growth and quality of shrimp on a daily / incidental. Ancho is usually a square the size of 1 mx 1m with a framework of wood / iron, and its center is associated with streameen (a kind of netting made of nylon) that are given weight / ballast in order to reach the bottom of ponds.
Materials / Equipment
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Materials / Equipment
- Ancho which is one of the tools already available in a ponds. Reviewed based on sampling equipment, hence ancho serves as a tool for shrimp sampling
- Container (plastic bucket) that has been filled with water as a place to collect shrimp from some ancho be sampled.
- Small container (bucket / pail small) as a place of shrimp that his condition will be observed and measured the average weight.
- Sit scales with a capacity of 1 kg, as a tool to measure the average weight of shrimp
- Calculator is required to calculate the average shrimp weight.
- Stationery used to document the results of counting the number and average weight of shrimp and other observations.
- Prepare all the necessary tools like the above and confirm that all existing ancho already in the pond bottom so that the process will be carried out sampling activities can run smoothly.
- Remove the ancho from pond bottom slowly so that the shrimp does not jump out of the ancho (this meant that the number of shrimp that can be taken in the maximum amount that is expected to represent the existing conditions and populations in these ponds).
- Catch all the shrimp that is in the ancho and place on the container (bucket) that has been filled with water, continue this process on other existing anchos in the pond and collect on the container.
- After the shrimps from the ancho-making process has been completed, then collect the shrimps in a small container to measure the total weight of shrimp samples.
- Put a small container which already contains samples of shrimp sitting on the scales (make sure the scales are in normal / good condition)
- Measure and record the total weight of shrimp samples in the container based on the pointer in the sit scale.
- Measure the container heavy of shrimp in a state where a blank sample to determine total weight of shrimp samples with the actual result of how heavy the item 6) above less the weight item 7). Example if the item 6) weight = 500 grams, and item 7) weight = 250 grams, then the actual total weight of shrimp samples = 500 grams - 250 grams = 250 grams..
- Calculate the total number of shrimps in the container such as observed conditions / quality of shrimp. If found the shrimp which is indication of a problem then the note issue as a material technical decisions related to farming or other aspects. The shrimp that have been measured and observed to be immediately returned to the pond to prevent water quality degradation of shrimp samples..
- Calculate the average weight of shrimp (average body weight / ABW) on the sampling results with the formula: total weight divided by the total number of shrimp shrimp. For example if the shrimp total weight = 250 grams, a total of 100 shrimps then the ABW = 250 grams: 100 shrimps = 2.5 grams / shrimp.
- Record the results of calculations and observations as a reference in the decision making process.
- The process of sampling using ancho activities should be performed approximately 2.5 - 3 hours after feeding in order to the number of shrimp taken in order to maximize.
- Sampling using activities should be performed quickly enough to avoid a decline in the quality of the shrimp samples.
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