Theses and Dissertations


Title: Effects of feeding, mesh size, and stocking size on the growth of Tilapia aurea (Steindachner) in cage culture

Name: Suwanasart, Pramot

Degree: MS

Chair: Dr. Eddie W. Shell

Resides: FAA Library

University: Auburn

Location: Auburn, Alabama

Date: 1972

Pages: 55

Keywords: Feeding,Mesh Size,Stocking Size,Growth,Tilapia aurea,Cages.

Abstract:

A study to obtain information on cage culture of Tilapia aurea (Steindachner) was conducted at the Fisheries Research Unit of the Auburn University Agricultural Experiment Station, Auburn, Alabama, during the Sumner, 1971. The study was designed to compare the growth of fed fish and unfed fish stocked at two different sizes (larger and smaller than 3.5 inches in total length), to compare growth of fish receiving a floating pellet (Purina Trout Chow) with fish receiving a sinking pellet (Auburn No. 3), to compare growth of fish stocked in cages with two different mesh sizes, and to compare the growth rate of males and females in cages. Mean net productions per cage of fed larger and smaller fish (49.91 and 42.14 lb.) were significantly different from net productions per cage of unfed larger and smaller fish (28.99 and 25.99 lb.). There was also a significant difference between net production per cage of fed larger and smaller fish but the difference between the net production per cage of unfed larger and smaller fish was not significant. Mean net production of fish which received a floating pelleted feed per cage (17.70 lb.) was significantly higher than the mean net production per cage of fish which received a sinking pelleted feed (12.70 lb.). There was a significant difference between net productions per cage of unfed fish stocked in 0.50-inch mesh cages (4.80 lb.) and unfed fish stocked in 0.19-inch mesh cages (3.80 lb.) after nine weeks. Males grew faster than females in all of the experiments except those unfed fish which were stocked in wire cages.

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