Theses and Dissertations


Title: Culture of channel catfish, Ictalurus punctatus (Rafinesque), Tilapia aurea, and Israeli carp, Cyprinus carpio, in separate and contiguous pens

Name: Miller, James W.

Degree: MS

Chair: Dr. John S. Dendy

Resides: FAA Library

University: Auburn

Location: Auburn, Alabama

Date: 1972

Pages: 86

Keywords: Channel Catfish,Tilapia aurea,Israeli Carp,Separate Pens,Contiguous Pens,Cyprinus carpio.

Abstract:

Channel catfish, Tilapia aurea and Israeli carp were cultured in combinations or as separate species in thirty-eight separate and contiguous 0.025-acre (0.01 ha) pens constructed in shallow, marginal areas of a fertilized 25.5-acre (10.3 ha) pond. Pens were constructed of one-inch mesh nylon netting attached to wooden frames supported by metal fence posts and enclosed about 91 cubic meters of water. Pens were built singly in groups of three and five to determine how contiguity versus separateness of pens influenced production of fish. Fish in thirty-one pens received a daily ration of Auburn No. 3 pellets during a 175-day growing period. Thirty-six fed or non-fed pens were stocked with channel catfish in multi-species combinations or as mono-species at rates ranging from 37 to 446 catfish per pen. Two-hundred Tilapia were stocked in multi-species combinations or as mono-species in each of thirty-five fed and non-fed pens. Israeli carp were stocked in multi-species combinations in six fed pens at rates of either five or ten fish per pen.Maximum net production of stocked fish was 16,872 pounds per acre (18,896.6 kg/ha) in a single fed pen stocked with 223 catfish and 200 Tilapia. Some results were affected by escape of fish through holes that developed in the netting of thirteen pens. The maximum stocking rate did not appear to be high enough to limit production in fed pens. Contiguity of pens did not appear to influence production. In non-fed pens catfish gained little weight after thirty days, but Tilapia increased in weight during the entire experiment. Stomach analysis of fed and non-fed catfish indicated limited utilization of natural food organisms, but Tilapia were found to consume considerable plankton.

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