shrimp culture information

at 11/08/2009 03:38:00 PM

At a morning, Akhmad as a shrimp culture technician seen hurry to pond location undertaken, because there are some pond compartments that scheduled be conducted routine sampling. Enter pond location, Akhmad so spirit because seen several shrimp farmers who wait him with shrimp sampling equipments. “Thank God they ready, if not, can be retarded sampling activity today” Akhmad mumble at heart. Akhmad speed up the footstep while pay attention to pond waters condition that he passes. Before come up to place where shrimp farmers wait him, suddenly Akhmad stop and go up at pond compartments wall that want conducted to sampling. He eye stares carefully up at pond waters because seen little bubbles that appear on water surface at several places. Those bubbles has been seen by him because at that moment water wheel in a deaden condition to give a chance for shrimp to consume feed that given. After a few moments Akhmad devolve the footstep to approach the shrimp farmers who ready help him to conduct sampling activities.

“Good morning all, whew appear spirit here to sampling today. ” said Akhmad to shrimp farmers while take outside note and little calculator from the coat pocket. “Really spirit sir, even less shrimps that we will sampling are 'funnies “, said Fulan who assigned to care shrimps in pond that want conducted to sampling. “ That’s you, ” answered Akhmad while smile and atmosphere at there be cheerful when the other farmers comes to laugh to receive Fulan's statement.

“Ok, if ready, we sampling right now, ” said Akhmad. While get ready, he approach to Fulan, “When you latest clean pond bottom ? ” asked Akhmad. While take sampling net, Fulan answered swiftly “Two days ago, I am here most discipline to clean pond bottom, Sir” answered Fulan with his unique style. His friends who around him hear little statement from Fulan, reply Fulan statement one another. “So you guarantee the pond bottom is clean .” shout Akhmad with smile. “Guarantee clean, like me” answered fulan shortly and again that thing evoke reaction noisy from the other. “You’re really, lier, ” said Akhmad in the heart sea can predict condition of Fulan’s pond bottom actually.

To prove his predictions, Akhmad choose several sampling points at pond area that he perceive previous. “Let we try to sampling here Fulan” said akhmad. Hear order like that, so Fulan throw the sampling net with swiftly to sampling point that meant. Fulan lift the net slowly, and then begin seen black mud sediment appears at pond water surface. See that phenomenon Akhmad pretends doesn't pay attention it, on the contrary Fulan seen restless and more restless when sampling net entire upraised. Fulan restlessness caused by net color that becoming blackness because black mud influence from pond bottom that comes brought by net.

“Whew …. . great, Fulan’s pond is really clean, but if like this is clean, like what the dirty Fulan” said Akhmad while laugh that greeted by belittling comments Fulan’s friends according to almost concurrent so that heard like choir. Fulan that felt lie only can quiet while his arms release trapped shrimps at net to be putted into pail sampling. “Whew .. my shrimp also dark colored compared has the friends, ” mumble Fulan while pay attention shrimps that come into pail.

Based on story above, there one basic question that can be made learning matters for us, that is: why Akhmad as a shrimp culture technician can detect that Fulan lie about pond bottom condition? If we are thorough, so actually Akhmad can predict pond bottom condition based on observation towards pond water surface at water wheel not operated that conducted before sampling activity. In water surface seen little bubbles that appear from pond bottom. That phenomenon as base in predict pond bottom condition.

There are some matter that we can make as learning matters from story above, among others:

There are many nature phenomenon at pond terrace also at its around environment although unimportant appear can be made as indicator in predict a condition related to shrimp culture process.
Through accurate observation and strong curiosity will make our knowledge to predict causality relationship on a shrimp culture process.
There are found tight correlation between composers elements of pond waters ecosystem. if happen change at one particular element, so will have another elements.
Make nature phenomenon likes to meant at item no. 1 as our teacher for increase comprehension and insight that we cannot get from another person.

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at 11/04/2009 09:17:00 AM

Season factors have real influence towards shrimp culture process especially related to pond water quality management, condition and quality of shrimps. As tropical country, Indonesia has two seasons that is dry season and rain season which each has different characteristics towards shrimp culture process. The characteristics related to sun’s rays intensity and rainwater intensity into pond waters. Based on the characteristics difference so it is on the right track if shrimp culture management system in both of season also differ so that doesn't happen treatment error that can harm shrimp culture effort in the period.

The tabulation hereunder is a matrix of difference between dry season and the rains with the influence towards water quality and condition / shrimp quality.

Based on tabulation above seen that sun’s rays intensity very influential towards pond water quality and finally also come along influential to shrimp growth. Although has different characteristics, shrimp culture process in both of season same need accurate handling especially in pond water quality management. The accurate handling is needed as efforts prevents water quality change inclination drastically that caused by the both of season characteristics.

A basic knowledge’s about dry season and the rain season characteristics for shrimp culture process properly has been understood by shrimp culture actors, because in generally shrimp culture process in Indonesia conducted at two season periods in one year according to by turns.

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at 10/23/2009 12:22:00 AM

At discussion before have explained the basic understanding related to shrimp uniformity level. As have explained, the shrimps population within pond mainly can be grouped on 3 (three), there are: (i) uniform shrimp, (ii) medium shrimp uniformity level, and (iii) serious shrimp uniformity level. Besides the explanation, understanding related to alternative method of its management based on condition that met in field.

Mainly, a needed management to apply related to shrimp uniformity covering: management of feeding program and management of water quality (assumption: used fry already uniform, both size and its age). The alternative management to above mentioned condition are as follows:

Uniform shrimps. If the shrimp population within pond have size relative uniform, hence needed technically management to apply is how to maintain the ideal condition till the shrimps ready to harvested normally. Feeding program management have to always follow shrimp need level and amount of daily feeding which given as according to shrimp density level within pond. At this condition usually the given feed amount will show tendency which is always increasing pursuant to time (except the shrimps on periodical molting condition). The feeding program has to be managed carefully based on conducted monitoring (through checking ancho and sampling).

Besides feeding program, the alternative needed management to apply is pond waters quality. Usually, there have a correlation between shrimp uniformity and pond water quality (with assumption: applied feeding program like above mentioned), that is: shrimp size will relative uniform if management of waters quality as according to shrimp need level. The needed effort to apply on waters quality management is how to maintain the pond waters quality relative stabilize and its not happened a change fluctuation of waters quality. The discussions related to pond waters quality have been explained before.
The shrimps with medium uniformity level. At this condition, a needed technically management is how to prevent its uniformity not increase to serious level, so an effort to improve it to nice condition. The applied feeding program is need reviewed especially related to shrimp feed size composition also amount of given feed. The feed size composition and amount of its can be estimated through monitoring when sampling and ancho checking conducted. The estimation included percentage of density of each shrimp size at population, so that can be estimated how much the feed size to be used and its amount to be given in once daily feeding frequency daily. The composition is needed to re-accommodate in accordance with conducted monitoring. If the shrimp uniformity aim to better level hence the given feed size will fewer.

For example : within a pond the shrimp population have 3 different size type, hence given feed better also consist of 3 different size feed type which is adapted to the shrimp. If the shrimp uniformity within the pond factually direct to the better level, for example its becoming 2 shrimp size types, hence given feed size type composition is better become 2 shrimp feed type too. Pond water quality management conducted on this condition is same with item of no. 1 above mentioned.
The serious shrimp uniformity level. At this condition, a needed technically management is how to prevent shrimp population within pond is not decrease drastically (caused by cannibalism process). The applied feeding program basically same with item of no. 2 above mentioned, however the composition of feed size type used in once feeding frequency usually also will be more. At more extreme handling, is usually conducted with sorting of shrimp size directly at ancho checking or at of sampling activity (not recommended). Sorting conducted to the shrimps which have extremely size one another so that expected the shrimp uniformity level within the pond will better though its density become to degradation. Pond water quality management conducted on this condition is same with item of no. 1 above mentioned.

The alternative handling like above mentioned basically is an effort to maintain, to improve and prevent a condition so that shrimp uniformity level within the pond can direct to expected condition especially to optimally output.

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at 10/20/2009 02:54:00 AM

In order to add knowledge related to shrimp culture technology, hence this blog will try to present a video from various source related to shrimp culture / aquaculture. Enjoy with it.

Biology and Ecology of Penaeus monodon

Source : http://www.youtube.com/watch?v=9TPOo_Rbv6s

at 10/17/2009 08:48:00 AM

Shrimp size on a population at pond is very affected on to technically shrimp culture management process especially at feeding management to be applied. At the age of shrimps come near to normally harvest, shrimp size is very affected on to its price or equally shrimp size have an important value on determining the financial profit level to be obtained.

Based on above mentioned idea, hence this article will be discussed concerning shrimp uniformity level. Simply, shrimp uniformity level can be interpreted as level of shrimp sizes various on a population at relative same age at period of selected time. Size various levels indicate the shrimp on the population have a different size one another.

Ideally, at early phase the fries entered into the pond have relative same size. During shrimp culture process shrimp size on population can change, so the shrimp size initially relative is same to vary one another. This phenomenon occurred more caused by feeding system mainly at early phase / first-month phase (the discussions related to this have been explained on related post beforel). The variation of shrimp size on a population also can reasoned by fry size used at disperse time have owned the relative vary size.

Mainly, the shrimp uniformity level can be grouped as follows :

Uniform. Shrimp population within pond has a uniform size and this is a best uniformity level. This condition will be more facilitate in feeding management, water quality management and if defensible to normal harvest, it will be more facilitate in biomass estimate and its price. In field for the shrimp on uniform size, technicians usually give the code with thumb (mean nicely / have one size).
Medium uniformity level. Shrimp population within pond relative has not too much various size. This condition need more careful and intensive treatment especially in feeding management, water quality management so expected the shrimp size can reduced its various level. In field for medium uniformity level technicians usually give the code with three fingers (thumb, little finger and forefinger).
Serious uniformity level. Shrimp population within pond relative has the size with high variations. This condition if not handled seriously will be able to complicate management of pond. Extremely, this condition can result shrimp cannibalism (small shrimps will be preyed by bigger shrimps), so that indirectly will result decrease amount of shrimps (survival rate) continuity and finally there will be decrease shrimp biomass.

This condition is needed to handle seriously and need a very careful monitoring, and at some condition the management system ( feed, quality and condition of shrimp) can revised again to be adapted from time to time. In field for serious uniformity level technicians usually give the code with five fingers.

Uniformity level like above mentioned can monitored based on observation through sampling activities (by ancho and fish-net) or at feeding program checking time at anco. If the shrimp uniformity level within pond have been known hence decision making will direct on maintaining (for uniform shrimp), improving (for medium uniformity), or revising (for serious uniformity) depended from observed results.

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