Theses and Dissertations


Title: Growth and production of Java tilapia, Tilapia mossambica Peters, alone and in combination with grass carp, Ctenopharyngodon idellus Cuvier and Valenciennes, when fed with ground leaves of kudzu, Pueraria thunbergiana

Name: Aguru, Prasit

Degree: MS

Chair: Dr. G.N. Greene

Resides: FAA Library

University: Auburn

Location: Auburn, Alabama

Date: 1966

Pages: 43

Keywords: Tilapia mossambica Peters,Grass Carp,Ctenopharyngodon idellus Cuvier and Valenciennes,Kudzu,Pueraria thunbergiana.

Abstract:

Four 0.002 hectare concrete ponds were stocked with thirty-five Java tilapia, Tilapia mossambica Peters, each, and four 0.002 hectare ponds were stocked with thirty-five Java tilapia plus two grass carp, Ctenopharyngodon idellus Cuvier and Valenciennes, on July 9, 1965. The fish were fed ground leaves of kudzu for six days a week at the rate of five per cent of their body weight at each feeding. Upon draining on October 1965, the production of tilapia stocked alone averaged 1046 grams per pond, while tilapia in the combination ponds averaged 1252 grams per pond. The production of grass carp averaged 70.75 grams per pond. Statistically, there was no significant difference between the two treatments in the weight gain of both kinds of fish. The degree of digestion of ground leaves of kudzu as determined by microscopic examination of the cells in the food and feces was 34.57 per cent for tilapia and 32.20 per cent for grass carp. Microchemical tests showed that both tilapia and grass carp digested all protein and fat in kudzu but could only digest some of the starch and perhaps some of the glucose.

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