Theses and Dissertations


Title: Preliminary studies on Tilapia mossambica Peters relative to experimental pond culture

Name: Kelly, Hugh David

Degree: MS

Chair: Dr. John S. Dendy

Resides: FAA Library

University: Auburn

Location: Auburn, Alabama

Date: 1955

Pages: 68

Keywords: Tilapia mossambica Peters,Experimental Pond Culture.

Abstract:

Preliminary studies were conducted on the exotic cichlid, Tilapia mossambica Peters, to determine the possibilities of incorporating this fish into the farm ponds program in the Southeast. In an 18-week experiment in concrete ponds, T. mossambica proved to be a more efficient fish than the bluegill, Lepomis macrochirus Raf. Where these fish were fed a standard trout food at the rate of 6 per cent of the body weight every other day, the former gave an average production per acre of 370.2 pounds and the latter 86.1 pounds, with inorganic fertilization 257.8 pounds and 149.7 pounds and with manuring 270.6 pounds and 116.6 pounds, respectively. Food habit studies conducted revealed that planktonic forms of plants and animals made up the bulk of the diet under natural conditions. The minimum temperatures tolerated by T. mossambica were determined in a thermostatically controlled cold room. This fish ceased feeding at approximately 60oF., and deaths began at 52 to 58oF. with 100 per cent mortality occurring at 47 to 49oF.The conclusion reached was that this fish cannot survive the winter conditions in most of the Southeast.

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