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Effects of stocking densities on growth of the Pacific white shrimp (Litopenaeus vannamei) in earthen ponds
|Title:||Effects of stocking densities on growth of the Pacific white shrimp (Litopenaeus vannamei) in earthen ponds|
|Keywords:||Litopenaeus vannamei, stocking density, survival, water quality, yield, growth|
|LC Subject Headings:||Fish culture--Israel--Periodicals.|
|Publisher:||Israeli Journal of Aquaculture - BAMIGDEH|
|Citation:||Mena-Herrera, A., Gutierrez-Corona, C., Linan-Cabello, M., & Sumano-Lopez, H. (2006). Effects of stocking densities on growth of the Pacific white shrimp (Litopenaeus vannamei) in earthen ponds. The Israeli Journal of Aquaculture - Bamidgeh, 58(3), 205-213.|
|Series/Report no.:||The Israeli Journal of Aquaculture - Bamidgeh|
|Abstract:||The effects of stocking density and physicochemical water characteristics on the growth, sur- vival, and production of the Pacific white shrimp, Litopenaeus vannamei, were assessed in six 500±72.5 m2 earthen ponds during two culture seasons: autumn-winter (20 weeks) and spring- summer (14 weeks). Stocking densities were 50, 60, and 70 shrimp/m2. Water turnover was approximately 15% per day. Aeration was supplied by a 3.5 hp air blower. Mean growth during the autumn-winter did not differ significantly among the stocking densities with final weights of 12.77, 12.72, and 12.40 g and yields of 3,609, 5,093, and 5,618 kg/ha at 50, 60, and 70 shrimp/m2, respectively. In contrast, there were statistically significant differences in mean growth and final yields during the spring-summer. Final mean weights were 18.63, 13.46, and 11.86 g and yields were 7,243, 7,307, and 8,011 kg/ha at 50, 60, and 70 shrimp/m2, respective- ly. Low water temperatures during the winter affected production. Better performance was recorded at higher spring-summer temperatures (≥23°C). Larger shrimp were associated with lower stocking density while higher stocking density produced slightly higher yields. For best per- formance, dissolved oxygen should be maintained above 4 mg/l.|
|Appears in Collections:||IJA Volume 58, Issue 3, 2006|
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