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1999 Journal Article Changes in some water quality conditions in recycling water using three types of biofiltration systems during the production of the sharptooth catfish Clarias gariepinus (Burchell): Part II: Growth and production of sharptooth catfish over a period of 78 daysPrinsloo, J. F., Roets, W., Theron, J., Hoffman, L. C. and Schoonbee, H. J. (1999). Changes in some water quality conditions in recycling water using three types of biofiltration systems during the production of the sharptooth catfish Clarias gariepinus (Burchell): Part II: Growth and production of sharptooth catfish over a period of 78 days. Water SA, 25 (2), 253-256. |
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1999 Journal Article Changes in some water quality conditions in recycling water using three types of biofiltration systems during the production of the sharptooth catfish Clarias gariepinus (Burchell): Part I: Relative efficiency in the breakdown of nitrogenous wastes by the different biofiltration unitsPrinsloo, J. F., Roets, W., Theron, J., Hoffman, L. C. and Schoonbee, H. J. (1999). Changes in some water quality conditions in recycling water using three types of biofiltration systems during the production of the sharptooth catfish Clarias gariepinus (Burchell): Part I: Relative efficiency in the breakdown of nitrogenous wastes by the different biofiltration units. Water SA, 25 (2), 239-252. |
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1997 Journal Article Partial replacement of fish meal with either soybean meal, brewers yeast or tomato meal in the diets of African sharptooth catfish Clarias gariepinusHoffman, L. C., Prinsloo, J. F. and Rukan, G. (1997). Partial replacement of fish meal with either soybean meal, brewers yeast or tomato meal in the diets of African sharptooth catfish Clarias gariepinus. Water SA, 23 (2), 181-186. |
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1997 Journal Article A comparison of allozyme heterozygosity and life history variables in four strains of african catfish (clarias gariepinus)Grobler, J. P., Hoffman, L. C., Prinsloo, J. F. and Hoffman, L. C. (1997). A comparison of allozyme heterozygosity and life history variables in four strains of african catfish (clarias gariepinus). Southern African Journal of Aquatic Sciences, 23 (1), 31-41. doi: 10.1080/10183469.1997.9631386 |
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1995 Journal Article Genetic and nutritional influence on the total lipid fatty acid profile of Clarias gariepinus muscleHoffman, Louwrens C. and Prinsloo, Jacobus F. (1995). Genetic and nutritional influence on the total lipid fatty acid profile of Clarias gariepinus muscle. Aquatic Living Resources, 8 (4), 415-421. doi: 10.1051/alr:1995049 |
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1995 Journal Article Consumer perspectives on the African sharptooth catfish in rural and urban areas of the Northern ProvinceHoffman, L. C., Donaldson, S. E. and Prinsloo, J. F. (1995). Consumer perspectives on the African sharptooth catfish in rural and urban areas of the Northern Province. Development Southern Africa, 12 (5), 725-732. doi: 10.1080/03768359508439852 |
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1995 Journal Article THE INFLUENCE OF DIFFERENT DIETARY LIPIDS ON THE GROWTH AND BODY-COMPOSITION OF THE AFRICAN SHARPTOOTH CATFISH, CLARIAS-GARIEPINUS (BURCHELL)HOFFMAN, LC and PRINSLOO, JF (1995). THE INFLUENCE OF DIFFERENT DIETARY LIPIDS ON THE GROWTH AND BODY-COMPOSITION OF THE AFRICAN SHARPTOOTH CATFISH, CLARIAS-GARIEPINUS (BURCHELL). South African Journal of Science, 91 (6), 315-320. |
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1995 Journal Article A chemical comparison between the golden and normal coloured strains of the African sharptooth catfish, Clarias gariepinus (Burchell 1822)Hoffman, L. C., Prinsloo, J. F., Theron, J. and Casey, N. H. (1995). A chemical comparison between the golden and normal coloured strains of the African sharptooth catfish, Clarias gariepinus (Burchell 1822). Journal of Applied Ichthyology, 11 (1-2), 71-85. doi: 10.1111/j.1439-0426.1995.tb00007.x |
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1995 Journal Article The genotypic influence of four strains of Clarias gariepinus on the larvae body proximate, total lipid fatty acid, amino acid and mineral compositionsHoffman, L. C., Prinsloo, J. F., Theron, J. and Casey, N. H. (1995). The genotypic influence of four strains of Clarias gariepinus on the larvae body proximate, total lipid fatty acid, amino acid and mineral compositions. Comparative Biochemistry and Physiology -- Part B: Biochemistry and, 110 (3), 589-597. doi: 10.1016/0305-0491(94)00178-W |
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1994 Journal Article Comparison of fish gonads and fish meal as major components in the diets of young african sharptooth catfish, clarias gariepinus (Burchell)Hoffman, L. C., Prinsloo, J. F. and Theron, J. (1994). Comparison of fish gonads and fish meal as major components in the diets of young african sharptooth catfish, clarias gariepinus (Burchell). Southern African Journal of Aquatic Sciences, 20 (1-2), 79-87. doi: 10.1080/10183469.1994.9631351 |
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1993 Journal Article COMPARISON OF HUMIDITY CHAMBER, MARISOURCE HATCHING-TRAY AND ZUGER GLASS FUNNEL INCUBATION SYSTEMS FOR BREEDING OF CYPRINUS-CARPIO (L) AND CLARIAS-GARIEPINUS (BURCHELL)PRINSLOO, JF, HOFFMAN, LC and THERON, J (1993). COMPARISON OF HUMIDITY CHAMBER, MARISOURCE HATCHING-TRAY AND ZUGER GLASS FUNNEL INCUBATION SYSTEMS FOR BREEDING OF CYPRINUS-CARPIO (L) AND CLARIAS-GARIEPINUS (BURCHELL). Water Sa, 19 (2), 167-170. |
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1992 Journal Article THE USE OF HOLDING CAGES FOR THE SPAWNING OF CLARIAS-GARIEPINUSHOFFMAN, LC and PRINSLOO, JF (1992). THE USE OF HOLDING CAGES FOR THE SPAWNING OF CLARIAS-GARIEPINUS. Water Sa, 18 (3), 225-226. |
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1992 Journal Article Aspects of the chemical control of Xenopus laevis tadpoles under laboratory conditionsTheron, J., Hoffman, L. C. and Prinsloo, J. F. (1992). Aspects of the chemical control of Xenopus laevis tadpoles under laboratory conditions. South African Journal of Wildlife Research, 22 (4), 110-113. |
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1991 Journal Article Observations on the effects of decreasing water temperatures on survival of Clarias gariepinus juvenilesHoffman, L. C., Prinsloo, J. F., Pretorius, D. M. and Theron, J. (1991). Observations on the effects of decreasing water temperatures on survival of Clarias gariepinus juveniles. South African Journal of Wildlife Research, 21 (2), 54-58. |
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1990 Journal Article A comparison of the fecundity of two strains of the sharptooth catfish Clarias gariepinusPrinsloo, J. F., Schoonbee, H. J. and Hoffman, L. C. (1990). A comparison of the fecundity of two strains of the sharptooth catfish Clarias gariepinus. South African Journal of Wildlife Research, 20 (3), 100-103. |
