WWW.WAS.ORG • WORLD AQUACULTURE • DECEMBER 2012 57 ovaries (Fig. 2D) were evident. Finally, before arriving at a conclusion in interpreting channel catfish ovarian reproductive condition, the interpreter should take into consideration the geographic location, temperature, time of year, health status, and age of broodstock — all of which influence ovarian development and therefore play a crucial role in interpretation of images. Notes 1 Louisiana State University Agricultural Center, Aquaculture Research Station 2410 Ben Hur Road, Baton Rouge, Louisiana 70820 * Corresponding author 2 Telavet 1000 (Classic Medical, Tequesta, Florida) 3 Model LV7.5/60/96Z Acknowledgement This work was supported in part by funding from the USDA-SBIR program, LSU-ACRES Cooperative Research Program, and the USDA-CSREES. We thank Baxter Land Company for for collaboration, and Dr. Rafael Cuevas-Uribe, Josh Patterson, E. Hu, and Matthew O’Neal for friendly review. This manuscript was approved for publication by the Director of the Lousiana Agricultural Experiment Station as number 2012244-7692. References Argue, B. J., Z. Liu and R. A. Dunham. 2003. Dress-out and fillet yields of channel catfish Ictalurus punctatus, blue catfish, Ictalurus furcatus, and their F1, F2 and backcross hybrids. Aquaculture 228:81-90. Dunham, R.A., D. M. Lambert, B. J. Argue and C. Ligeon. 2000. Comparison of manual stripping and pen spawning for production of channel catfish x blue catfish hybrids and aquarium spawning of channel catfish. North American Journal of Aquaculture 62:260-265. Guitreau, A.M., D. Heikes, J. Baxter and T. R. Tiersch. 2007. Evaluation of ultrasonography as a production tool to improve efficiency of artificial spawning in channel catfish females. Annual meeting of the World Aquaculture Society, San Antonio, Texas. Guitreau, A., B. Eilts, N. Novelo and T. R. Tiersch. 2012. Fish handling and ultrasound procedures for viewing the ovary of submersed, non-anesthethized, unrestrained channel catfish. North American Journal of Aquaculture 74:182-187. Hu, E, H. Yang and T. R. Tiersch. 2011. High-throughput cryopreservation of spermatozoa of blue catfish (Ictalurus furcatus): Establishment of an approach for commercial-scale processing. Cryobiology 62:74-82. Kremkau, F. W. Diagnostic Ultrasound: Principles and Instrument, Fifth Edition. W. B. Saunders Company, Philadelphia, PA. Krisanto A. H., G. Umali, R. Beam and R. A. Dunham. 2009. Effect of post-manufacturing processing and shipping of luteinizing hormone releasing hormone analog on induced ovulation in production of channel catfish female x blue catfish male hybrid fry. North American Journal of Aquaculture 71:307-311. Lang, R. P., R. P. Romaire and T. R. Tiersch. 2003. Induction of early spawning of channel catfish in heated earthen ponds. North American Journal of Aquaculture 65:73-81. Lang, R. P. and T. R. Tiersch. 2007. Early out-of-season induced spawning of channel catfish Ictalurus punctatus (Rafinesque) conditioned in heated earthen ponds. Aquaculture Research 38:498-507. Novelo, N. D., D. Kuenz, C. C. Green and T. R. Tiersch. 2011. Ultrasonographic monitoring of channel catfish ovarian development. Pages 134-144 In: T.R. Tiersch and C. C. Green, editors. Cryopreservation in Aquatic Species, 2nd Edition. World Aquaculture Society, Baton Rouge, LA. (CONTINUED ON PAGE 56)
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