Effects of earthworm (Lubricus terrestris) as major feed ingredient in formulated diets for juvenile fresh water shrimp (Macrobrachium rosenbergii) / Nerrie Anne M. Dela Merced

Experimental Research Methodology

Thesis BSF University of Rizal System. Cardona 2002

The effects of earthworm (Lubricus terrestris) as major feed ingredient in formulated diets for juvenile freshwater shrimp Macrobrachium rosenbergii were tested in three concentrations, which were replicated thrice using Completely Randomized Design (CRD). For treatment 1 30 g of earthworm was utilized mixed with rice bran and fish meal of 25g each and 20g for cornstarch. Another treatment was tested having 40 g of earthworm, 20g of rice bran and cornstarch of 15 g each, fish meal of 20g and the major ingredient, earthworm, for 50 g Three shrimps were stocked in each container with one liter of water. Water parameters were taken to observe the effect in the experiment. Feeding of the species was done twice a day, which lasted for two weeks with monitoring and observation. There were two samplings done, first was after seven days and the final sampling was done after fourteen days from the first day of stocking. Prior to which was the consideration of the final weight of a shrimp. Every sampling, the mean weight and standard length of the stock was recorded. Using Analysis of Variance, result revealed that there is no significant difference among treatments, since the computed value for the growth, which is .011 is lower that the tabular value at 5% level of probability, which is 6.94. So as in terms of mortality rate, there is still no significant difference (CF .76; T value 6.94). Therefore, the null hypothesis is accepted and the alternative is rejected. It can be said, then, that no difference will be gained, in terms of mortality and weight, if earthworm will be given at different concentrations as feed for juvenile fresh water shrimp (Macrobrachium rosenbergii.) This explains that the percentage or amount of concentration of earthworm in the diet for juvenile freshwater shrimp (Macrobrachium rosenbergii) as formulated feeds has minimal effect in its growth and mortality. This study, therefore, is limited only on the different concentrations tested in the experiment.

Dela Merced, N. A. M. (2002). Effects of earthworm (Lubricus terrestris) as major feed ingredient in formulated diets for juvenile fresh water shrimp (Macrobrachium rosenbergii). Cardona: University of Rizal System.