Browsing Department of Fisheries and Natural Resources by Title
Now showing items 26-45 of 107
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Culture Trials of Nile Perch Juveniles in Cages and Earthen Ponds
(2019-09)Fish were obtained from Asembo Bay, Dunga, Kendu Bay, Homa Bay and Mbita beaches around Lake Victoria using beach seines (< 10-mm mesh). Fish were sorted by size and stocked into hapa nets, each measuring 3 m× 3 m× 1 m, ... -
Culturing Brachionus rotundiformis Tschugunoff (Rotifera) using dried foods: application of gamma-aminobutyric acid (GABA)
(Springer International Publishing, 2017-07-01)This study investigated the population growth of the rotifer Brachionus rotundiformis (S-type) in batch cultures using dried Nannochloropsis oculata and Chlorella vulgaris with gamma-aminobutyric acid (GABA) supplementation. ... -
Culturing live foods for fish larviculture using non‐microalgal diet: The role of waste‐generated bacteria and selected commercial probiotics—A review
(Aquaculture, Fish and Fisheries, 2022)Condensed suspension of live microalga cells, for example, Chlorella vulgaris, Nannochloropsis oculata and Tetraselmis tetrathele is often utilized as diets for mass production of live food resources, that is, rotifers, ... -
Determinants of fish farmers’ awareness of insect-based aquafeeds in Kenya; the case of black soldier fly larvae meal
(Cogent, 2023-03-09)It is evident from scientific studies that black soldier fly larvae can replace the widely used fishmeal, which is costly and unsustainable for smallholder farmers, in aquafeeds. The purpose of this study was to evaluate ... -
DETERMINATION OF FISH VALUE ADDED PRODUCT-PREFERENCES AMONG THE RESIDENTS OF WOTE TOWN, MAKUENI...
(Research gate, 2016)2012). Fish preferences and purchasing different attributes. According to (Polanco and Luna, 2010), food purchasing decisions are directed by cultural, psychological, lifestyles, culinary trends and diet restrictions. ... -
Dietary Value of Waste-Fed Rotifer Brachionus rotundiformis on the Larval Rearing of Japanese Whiting Sillago japonica
(E3S Web of Conferences, 2020-02-12)Abstract. Live food resources are useful for larval fish rearing. However, production of sufficient live food resources is expensive. This study employed a cost-effective rotifer culture technique using fish waste diet ... -
Earthworm, Eisenia fetida, bedding meal as potential cheap fishmeal replacement ingredient for semi-intensive farming of Nile Tilapia, Oreochromis niloticus
(Aquaculture Research, 2020-02-11)The study amalgamated earthworm and agro-industrial wastes through vermicomposting and then evaluated the potential of the bedding (mixture of Eisenia fetida and vermicompost) to replace fishmeal in semi-intensive farming ... -
Ecological implications of Rastrineobola argentea (omena) fishery: A rapid assessment of bycatch diversity at Dunga Beach, Lake Victoria, Kenya
(AfricArXiv, 2022-06)Rastrineobola argentea (omena) is the second most important species in the fisheries of Lake Victoria after Nile perch. However, its fisheries have negative impacts on the ecology of the lake especially because of the high ... -
Effect of replacing marine protein with hydrolyzed feather meal on growth, apparent digestibility and body composition of juvenile tilapias; Oreochromis mossambicus (peters, 1852)
(KENYA MARINE AND FISHERIES RESEARCH INSTITUTE, 2017)The effects of substituting hydrolyzed feather meal for fresh water shrimp meal on growth, apparent digestibility and body composition in tilapia Oreochromis mossambicus were evaluated under laboratory condition. Five ... -
Effect of starvation and accumulation of generations on mixis induction in offspring of the monogonont rotifer Brachionus manjavacas hatched from resting eggs
(Springer International Publishing, 2017-07-01)The effect of starvation on sexual reproduction in cyclic parthenogenetic rotifers has been studied using life history experiment. Short-time starvation of rotifers that experienced starvation immediately after hatching ... -
Effectiveness of Sodium Bicarbonate as an Anaesthetic for different sizes of Nile tilapia (Oreochromis niloticus L., 1758) Juveniles
(Kenya Marine and Fisheries Research Institute, National Aquaculture Research Development and Training Center,, 2013-06-01)The effectiveness of sodium bicarbonate as an anaesthetic for Nile tilapia (Oreochromis niloticus) juveniles ranging from 2 to 27g was investigated. The juveniles were exposed to different concentrations of 0 (control), ... -
Effects of aerated and non-aerated biofilters on effluent water treatment from a small-scale recirculating aquaculture system for Nile tilapia (Oreochromis niloticus L.)
(Sciendo, 2020-04-21)Most recirculation aquaculture systems (RAS) use aerated biofilters to maintain suitable water quality for fish production. However, application of non-aerated biofilters may provide opportunities to lower aeration costs, ... -
Effects of chicken manure extract on the population growth, mixis induction and body size of the freshwater rotifer Brachionus angularis Gosse 1851
(Asian Fisheries Society, 2015-12-31)This study investigated the effects of chicken manure extract (CME) on the population growth, mixis induction and body size of the freshwater rotifer Brachionus angularis Gosse 1851. Four concentrations of CME (i.e.0.5, ... -
The effects of dietary levels of protein and greenhouse on growth, behaviour and fecundity of Nile tilapia (Oreochromis niloticus L.) Broodstock
(Kenya Marine and Fisheries Research Institute, Kegati Aquaculture Research Station, 2012)The aim of the study was to assess the main and interactive effects of greenhouse and dietary crude protein levels on growth, behavior and fecundity of Nile tilapia at Kegati aquaculture research station, Kisii, Kenya ... -
Effects of fisheries policy implementation strategies on regulatory compliance in the small-scale fisheries sector in Lake Victoria: A case study of Busia County, Kenya
(International Journal of Fisheries and Aquatic Studies, 2021)Lake Victoria is an integral part of Kenya's food production system. Fisheries policies and regulations have been formulated and implemented for sustainable management of the lake's resources, but the lake's ecological ... -
Effects of Nicotina tobacum (Linnaeus) on the survival and behavioral response of the freshwater leeches, Hirudinaria sp.
(2016-01-01)We investigated the efficacy of Nicotina tobacum as an anti-parasitic chemical to freshwater leeches of the genus Hirudinea, by assessing their behavioral and survival responses to different concentrations and ages of N. ... -
Effects of pure and crude papain on the utilization and digestibility of diets containing hydrolysed feather meal by Nile tilapia (Oreochromis niloticus L.)
(KENYA MARINE AND FISHERIES RESEARCH INSTITUTE, 2014)This study was conducted to evaluate the effects of pure and crude papain on the digestibility and utilization of diets containing hydrolysed feather meal (HFM) by Nile tilapia (Oreochromis niloticus L.) under indoor and ... -
Efficiency of pumpkin (Cucurbita pepo), sweet wormwood (Artemisia annua) and amaranth (Amaranthus dubius) in removing nutrients from a smallscale recirculating aquaponic system
(Springer International Publishing, 2019)In aquaponic systems, plants absorb dissolved nutrients from aquaculture wastewater for their growth. The removal of nutrients allows reuse of water and minimises wastewater discharge to the surrounding environment. This ... -
Efficiency of pumpkin (Cucurbita pepo), sweet wormwood (Artemisia annua) and amaranth (Amaranthus dubius) in removing nutrients from a smallscale recirculating aquaponic system
(Aquaculture International, 2019-08-28)In aquaponic systems, plants absorb dissolved nutrients from aquaculture wastewater for their growth. The removal of nutrients allows reuse of water and minimises wastewater discharge to the surrounding environment. This ... -
Entomophagus Response of Indigenous Chicken to Diets Enriched with German Cockroach (Blattela germanica) Meal in Kenya
(2023-05-16)Feeding accounts for 65-70% of cost production in a chicken enterprise. Fishmeal has primarily been used as a source of protein in chicken feed owing to its excellent nutritional value. However, due to its unstable supply ...