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1 August 2006 EFFECT OF DIFFERENT LEVELS OF DIETARY α-TOCOPHEROL ON OVARIAN MATURATION AND REPRODUCTIVE PERFORMANCE OF BROODSTOCK LITOPENAEUS VANNAMEI (BOONE)
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Abstract

Effects of 4 grade levels of dietary α-tocopherol (37.82, 115.64, 349.42 and 522.56 mg kg−1 diet) on ovarian maturation and reproductive performance of broodstock shrimp, Litopenaeus vannamei were investigated. The α-tocopherol concentrations in hepatopancreas, ovaries, eggs and muscle of female shrimp increased significantly as dietary α-tocopherol levels increased. Survival, spermatophore weight, sperm count, gonadosomatic index (GSI), hepatosomatic index (HSI), fecundity and egg diameter were not significantly affected by dietary α-tocopherol levels. Average daily spawns, hatching rate and fertilization rate significantly increased as dietary α-tocopherol levels increased. Results of this study confirmed the importance of supplementation of α-tocopherol to broodstock diets fed to L. vannamei, and suggested that at least 350 mg α-tocopherol kg−1 of diet was needed to achieve significantly better ovarian maturation and reproductive performance.

SHAOBO DU, CHAOQUN HU, SHIQING CAI, QI SHEN, and SHIXUAN ZHENG "EFFECT OF DIFFERENT LEVELS OF DIETARY α-TOCOPHEROL ON OVARIAN MATURATION AND REPRODUCTIVE PERFORMANCE OF BROODSTOCK LITOPENAEUS VANNAMEI (BOONE)," Journal of Shellfish Research 25(2), 589-593, (1 August 2006). https://doi.org/10.2983/0730-8000(2006)25[589:EODLOD]2.0.CO;2
Published: 1 August 2006
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