Roopchand farming depends on the correct timing of a series of step that govern the growth of Roopchand fish. Timing is the most important decision to be made in Roopchand farming. If the farmers manage the growth curve correctly, the other aspects of Roopchand farming will succeed.
However, if the growth curve is missed, the costs associated with feeding the Roopchand fish will increase, and the fish will never reach the desired size. The graph that is provided to the farmers depicts the growth curve of the Roopchand fish throughout its life cycle, as well as the weight that the fish should reach at each stage of its life. Using this graph, the farmers can plan the time at which they will begin to stock the ponds with Roopchand fish, the time at which they will change the feed for the fish, and the time at which they will begin to harvest the fish from the ponds.
When to Feed and Harvest Silver Pomfret
Many who farm silver pomfret fish is familiar with the clean flavor and texture of the fish. However, many are surprised by how quickly the silver pomfret fish reach the juvenile growth stage. The egg and larval stages of silver pomfret fish only last for two week.
During this stage, the silver pomfret larvae must receive live feed and the salinity of the water must be stable. If the conditions required for the larvae are not stable, many of the larvae will perish. The survivors of these early stages will carry the disadvantages of that early stage with them for the remainder of their growth cycle.
When silver pomfret fish reach the juvenile growth stage, their bodies become disc shape. The farmers can track the growth of silver pomfret fish each week at this stage, allowing them to begin to plan the date at which they will harvest the silver pomfret fish. The growth rate of silver pomfret fish increases between the juvenile and sub-adult stages of the fish.
The daily weight gain of silver pomfret fish increase to its peak during the juvenile and sub-adult stages of the silver pomfret fish. As depicted in the graph, there is a difference between good management of the fish during these stages versus average management of those fish. During the juvenile and sub-adult stages, the silver pomfret fish are dependent upon the protein content of the feed and the salinity of the water in which they live.
If the protein content is reduced during these stages or if the salinity of the water increases, the daily weight gain of the silver pomfret fish will plateau. If the conditions in the pond are maintained correctly, however, the silver pomfret fish will exhibit a steady increase in there weight. The tolerance of silver pomfret fish to the salinity of the water increases as the fish age.
Additionally, the silver pomfret fish also has a tolerance for the temperature of the water. This information is essential for farmers to decide whether they will begin a second crop of silver pomfret fish in the ponds, or if they will allow for the current crop of silver pomfret fish to grow. Adult silver pomfret fish have greater tolerance for both the salinity and temperature of the water than young silver pomfret fish.
However, the salinity and temperature of the water still must be monitored in the grow ponds. The graph depicts the salinity and temperature that silver pomfret fish tolerate at each life stage. Additionally, many farmers only monitor the salinity and temperature of their ponds when the silver pomfret fish begin to exhibit signs of stress.
By the time that silver pomfret fish exhibit stress, however, the damage to the silver pomfret fish is likely alredy done. The feeding requirements of silver pomfret fish change as the silver pomfret fish grow. In the early (larval) stages of the silver pomfret fish, the fish eat rotifers and artemia.
After the larval stage, however, the feed changes to micro pellets, and later to larger, floating feed for the silver pomfret fish. Additionally, overfeeding of silver pomfret fish once they reach the adult growth stage will waste money for the farms. Additionally, insufficient feeding during the juvenile stage will cause the silver pomfret fish to miss several week of growth before the silver pomfret fish are harvested.
The graph displays how often to feed the silver pomfret fish during each stage of their growth. The types of diseases that affect silver pomfret fish change as the life stage of the silver pomfret fish changes. During the early stages of silver pomfret fish, the type of disease that threatens those young fish is related to the salinity and temperature of the water in which they live.
Later in the life stages of silver pomfret fish, however, those fish are at risk of external parasites and bacterial infections. Crowding of silver pomfret fish and the handling of those fish cause those bacterial infections. The steps that can be taken to prevent disease in silver pomfret fish is the same throughout its life cycle.
Regardless of the age of the silver pomfret fish in a pond, the farmers must maintain the dissolved oxygen in the pond, the salinity and temperature of the water must be regularly exchanged, and the silver pomfret fish in the pond should be graded according to the size of the fish. By grading the silver pomfret fish in the pond, each group of silver pomfret will be of similar sizes. By having silver pomfret fish of similar sizes in each pond, there is less competition among the silver pomfret fish, and it will be easier to spot any diseases among the fish.
In determining when to harvest silver pomfret fish from the ponds, the fish farmers can utilize the graph. The graph allows the silver pomfret fish farmers to determine during which time period the silver pomfret fish will reach a weight of between 300 and 350 grams, which is the weight that buyers prefer for there kitchens. The graph can also reveal the upper limit of the weight of silver pomfret fish during which the feeding efficiency declines for the silver pomfret farms.
Some farms will allow the silver pomfret fish to grow to a larger size to recieve better prices for their silver pomfret fish. Other farms will harvest their silver pomfret fish earlier to allow for more growing cycles of silver pomfret fish within the pond. Both of these methods are acceptable as long as the silver pomfret fish farmers understand the growth rate of their silver pomfret fish and adjust the number of silver pomfret fish in each pond accordingly.
The information and data that is available within the graph is likely the only information available to the silver pomfret fish farmers regarding the silver pomfret life cycle, as experience is the primary means of learning the different stages of the silver pomfret fish life. By utilizing the information in the graph, silver pomfret fish farmers will have an understanding of the length of the silver pomfret fish and the weight of the silver pomfret fish at each stage each month. The farmers can then determine the cause of any issues within their silver pomfret fish populations by knowing their silver pomfret fish’ growth stage, comparing that stage to the graph, and recognizing whether the issue with the silver pomfret fish is related to the feed, the water in which the silver pomfret fish live, or normal variation in the growth of their silver pomfret fish populations.
By using the graph, silver pomfret fish farmers can shift from reactively managing their silver pomfret fish farms to planning the management of their silver pomfret farms according to the life cycle stages of the silver pomfret fish.
