Browsing by Author "Ngugi, Charles C."
Now showing items 1-9 of 9
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Assessment of Growth Performance of Monosex Nile Tilapia (Oreochromis Niloticus) in Cages Using Low-Cost, Locally Produced Supplemental Feeds and Training Fish Farmers on Best Management Practices in Kenya
Bundi, James M.; Ngugi, Charles C.; Fitzsimmons, Kevin; Manyala, Julius; Kimotho, Ann N.; Amadiva, Judith M.; Ndogoni, Julius N.; Munguti, Jonathan (2018)Changing technology in aquaculture has been the major driving force for increasing aquaculture production in the phase of dwindling open water stocks. The choice of technologies and their adoption still remain a focus to ... -
Characterization of the nutritional quality of amaranth leaf protein concentrates and suitability of fish meal replacement in Nile tilapia feeds
Okoth, Elijah Oyoo; Ngugi, Charles C.; Manyala, Julius O.; Fitzsimmons, Kevin; Kimotho, Ann (Elsevier, 2017)A number of leafy vegetables,their protein concentrates and hydrolasates are under evaluation as alternative protein ingredients to fish meal(FM)in aqua feeds. This study evaluated the nutritional characteristics and ... -
Dietary administration of probiotics modulates non-specific immunity and gut microbiota of Nile tilapia (Oreochromis niloticus) cultured in low input ponds
Ngugi, Charles C.; Jumbe, James; Opiyo, Mary A.; Charo-Karisa, Harrison (International Journal of Veterinary Science and Medicine, 2019) -
Different levels of probiotics affect growth, survival and body composition of Nile tilapia (Oreochromis niloticus) cultured in low input ponds
Ngugi, Charles C.; Karisa, Harrison Charo; Jumbe, James; Opiyo, Mary A. (Elsevier, 2019)A 7-month experiment was carried out to determine the effects of different levels of probiotics (baker’s yeast (Saccharomyces cerevisiae) and Bacillus subtilis) on Nile tilapia (Oreochromis niloticus) reared in low input ... -
Effects of dietary levels of essential oil (EO) extract from bitter lemon (Citrus limon) fruit peels on growth, biochemical, haemato-immunological parameters and disease resistance in Juvenile Labeo victorianus fingerlings challenged with Aeromonas hydrophila
Okoth, Elijah Oyoo; Muchiri, Mucai; Ngugi, Charles C. (John Wiley & Sons Ltd, 2016-04)Essential oils (EOs) are used in the food industry because of their biological activity. We evaluated the effects of administration of essential oil (EO) extracted from bitter lemon (Citrus limon) fruit peels on the growth ... -
Macroinvertebrate metrics and lipid profiles as potential indicators of land use influence in a high altitude tropical highland stream (Sagana River Basin, Kenya)
Odhiambo, Charles O.; Ngugi, Charles C.; Sharma, Rekha R.; Oyoo-Okoth, Elijah (Elsevier, 2024)Land use practices near river ecotones result in numerous inputs of terrestrial materials into the river ecosystem. While macroinvertebrates population metrics is widely used in monitoring water quality changes, including ... -
Salinity tolerance, growth and survival of three Artemia franciscana (Kellogg, 1906) populations under laboratory conditions
Ngarari, Morine M.; Rugendo, Derrick G.; Nyonje, Betty M.; Hinzano, Sheban M.; Midumbi, David O.; Ngugi, Charles C.; Opiyo, Mary A.; Okalo, Francis A.; Gatune, Charles W. (Wiley, 2024-04-17)In the 1980s, Artemia franciscana from San Francisco Bay (SFB) was introduced into Kenyan saltworks, where it has colonized and established stable populations. However, little is known about its biology, particularly with ... -
Salinity tolerance, growth and survival of three Artemia franciscana (Kellogg, 1906) populations under laboratory conditions
Ngarari, Morine M.; Rugendo, Derrick G.; Nyonje, Betty M.; Hinzano, Sheban M.; Midumbi, David O.; Ngugi, Charles C.; Gatune, Charles W. (Wiley, 2024-04)In the 1980s, Artemia franciscana from San Francisco Bay (SFB) was introduced into Kenyan saltworks, where it has colonized and established stable populations. However, little is known about its biology, particularly with ... -
Spawning interactions between hatchery-reared and wild naturalized rainbow trout (Oncorhynchus mykiss, Walbaum, 1792) in high-altitude tropical streams, Kenya
Njue, Justus N.; Ngugi, Charles C.; Mucai, Muchiri; Opiyo, Mary A. (Wiley, 2022-07)Rainbow trout (Oncorhynchus mykiss) is among the most widely translocated fish species in the world. The current study evaluated the spawning interactions between naturalized and wild rainbow trout from two high-altitude ...