Abstract
The shrimp growth and production can be measured through several components such as the harvest ton, mean body weight, survival rate and feed conversion ratio. According to previous studies, the shrimp feed conversion ratio should have a positive relationship with their mean body weight. Nevertheless, in real scenario, high feed conversion ratio does not necessarily implies maximum increment of mean body weight. The measurement of those components usually can be influenced by many factors such as climates, stocking density and day of culture. This study in particular explores the effect of climates on productivity of the shrimp species, Penaeus Vannamei and investigates whether feed conversion ratio influences the mean body weight when stocking are done at different climate season. First, the one-way MANOVA was used to measure the effect between the climate seasons and P. Vannamei production. Then, the regression analysis was apply to measure the relationship between P. Vannamei feed conversion ratio and mean body weight for different climate seasons. Finally, to find the best season for sustainable production of P. Vannamei, the average score of P. Vannamei production was measured according to their stocking climate season. Result revealed that dry season was more favorable for the growth and production of P. Vannamei compared to wet season.
Highlights
Shrimp larva rearing technique was first mastered by Dr Motosaku Fujinaga in 1934 at Japan [1]
Secondary data is considered in particular the stocking date, harvest ton (HAR_TON), mean body weight (MBW), Survival Rate (SR), and feed conversion ratio (FCR) from year 2012 to January 2015
161 (18.21%) cycles of sample are on dry season and 723 correlation coefficient values obtained for FCR and MBW in both
Summary
Shrimp larva rearing technique was first mastered by Dr Motosaku Fujinaga in 1934 at Japan [1]. Extensive shrimp aquaculture is primarily used in areas with cheaper land price, limited infrastructure, high interest rates and less highly trained aquaculture specialists In these type of environment, family group producers or individual are able to set up operation with few inputs and minimal technical knowledge even though they are not able to access to credit. The second shrimp culture system is semi-intensive This cultivation depends on a reliable shrimp post larvae supply and needs better management intervention in pond’s operation compared to extensive ponds. The third shrimp culture system is intensive shrimp cultivation which is a grow-out systems with high land costs, adequate infrastructure, ample supplies of clean sea water and welldeveloped hatchery and feed industries. In Malaysia, intensive culture systems are commonly used while the rearing facilities are either earthen lakes or solid tanks [2]
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