alexa Determining Ovarian Maturity in Farmed Sturgeon 1 (Acipenser transmontanus) for Caviar Production Using Fourier Transform Infrared Spectroscopy (FT-IR)
ISSN: 2155-9546

Journal of Aquaculture Research & Development
Open Access

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Research Article

Determining Ovarian Maturity in Farmed Sturgeon 1 (Acipenser transmontanus) for Caviar Production Using Fourier Transform Infrared Spectroscopy (FT-IR)

Lu X1, Talbott MJ2, Eenennaam JPV3, Webb MAH4, Doroshov SI3, Ovissipour M1 and Rasco B1*

1School of Food Science, Washington State University, Pullman, WA 99164-6376, USA

2Montana Cooperative Fishery Research Unit, Montana State University, Bozeman, MT 59717, USA

3Department of Animal Science, One Shields Avenue, University of California, Davis, CA 95616, USA

4Bozeman Fish Technology Center, U.S. Fish and Wildlife Service, 4050 Bridger Canyon Rd, Bozeman, MT 59715, USA

*Corresponding Author:
Barbara Rasco
School of Food Science
Washington State University
P.O. Box 646376, Pullman
Washington 99164-6376, USA
Tel: +1-509-335-1858
Fax: +1-509-335-4815
E-mail: [email protected]

Received Date: September 09, 2013; Accepted Date: October 28, 2013; Published Date: November 16, 2013

Citation: Lu X, Talbott MJ, Eenennaam JPV, Webb MAH, Doroshov SI, et al. (2013) Determining Ovarian Maturity in Farmed Sturgeon (Acipenser transmontanus) for Caviar Production Using Fourier Transform Infrared Spectroscopy (FT-IR). J Aquac Res Development 5: 202. doi:10.4172/2155-9546.1000202

Copyright: © 2013 Lu X, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Ovarian maturity of white sturgeon (Acipenser transmontanus, Acipenseridae) farmed in California (Sterling Caviar, LLC) (N=400) and Idaho (Fish Breeders and Blind Canyon Aqua Ranch) (N=143) was determined by correlating blood plasma spectral features [(Fourier transform infrared (FT-IR, 4000-400 cm-1) spectroscopy] with oocyte polarization index (PI), an index of germinal vesicle migration. A total of ~20,000 spectra were collected over a period of four years (2007, 2008, 2009 and 2010). Mathematical models could predict maturity in fish at a later year of harvest (i.e., 2010) and at either the California or Idaho production sites. PI values of 0.10, 0.15, and 0.20 were selected for segregating fish into subgroups based on ovarian maturity. Spectral features for specific proteins, lipids, carbohydrates and nucleic acids were related to fish maturity stages. Mathematical models could predict the actual PI values based on plasma spectral features in fish from 2010 based on models developed and validated from fish harvested in 2007-2009. These models worked equally well whether the fish were raised in California or Idaho. This research indicates that infrared spectroscopy provides a rapid and less invasive method to segregate sturgeon females according to maturity levels and has the potential to substitute for the traditional surgical biopsy to determine stage of maturity.

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