Use of soy protein concentrate in practical diets for Pacific white shrimp (Litopenaeus vannamei) reared under field conditions |
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| Authors: | Daranee Sookying D Allen Davis |
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| Institution: | (1) Department of Fisheries and Allied Aquacultures, Auburn University, 203 Swingle Hall, Auburn, AL 36849-5419, USA |
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| Abstract: | The objective of this study was to evaluate the production response of Litopenaeus vannamei fed with production diets containing increasing percentages (0, 4, 8, and 12%) of soy protein concentrate (SPC). The diets
were commercially produced and evaluated in outdoor tanks and 0.1-ha production ponds. In the outdoor green water tank system,
the four test diets and a commercial reference diets were offered to juvenile shrimp (1.0 g initial weight) reared over a
10-week period at a stocking density of 30 shrimp per tank. At the conclusion of the tank trial, there were differences in
final weight (13.5–15.0) biomass (399 g–432 g), and FCR (1.17–1.28) with the reference diet generally producing significantly
better results than the test diets albeit there were no significant differences among the SPC test diets. In addition, the
test diets were evaluated in 0.1-ha ponds using four replicates per diet. Nursed juvenile shrimps (0.013 g initial weight)
were stocked at 35 shrimp m−2 and were cultured under standardized pond production conditions for 18 weeks. At the conclusions, net yield (4,190–5,051 kg/ha),
final mean weight (13.5–15.7 g), survival (86.7–93.3%), and FCR (1.3–1.59) were evaluated with no significant differences
between dietary treatments. The results from this study demonstrated that SPC inclusion up to 12% SPC in soybean-based diet
can be used in commercial feed formulations for L. vannamei without causing negative effect on growth, feed conversion, survival and net yield. |
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