Browsing Department of Fisheries and Natural Resources by Title
Now showing items 20-39 of 111
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Complete replacement of fish meal in the diet of Nile tilapia (Oreochromis niloticus L.) grow-out with alternative protein sources. A review
(KENYA MARINE AND FISHERIES RESEARCH INSTITUTE, 2014)Tilapia culture is widely practiced in tropical and subtropical regions with an annual growth rate of 12% thanks to their high growth rate, disease resistance, and low trophic feeding levels. The increase of aquacultur ... -
Composting fishwastes as low-cost and stable diet for culturing Brachionus rotundiformis Tschugunoff (Rotifera): Influence on water quality and microbiota
(Elsevier, 2018-02-03)The demand for the rotifers BRACHIONUS spp., which is considered indispensable for larviculture, has increased considerably in the tropical countries. Although freshly cultured microalga is the common rotifer diet, the ... -
COVID-19 disruptions and pivoting in SMEs in the hidden middle of Kenya’s potato and fish value chains
(Wageningen Academic, 2023)Small and medium enterprises (SMEs) in Kenya were severely affected by the COVID-19 pandemic and restrictions put in place to contain it. This study assesses the impact of these restrictions on the midstream of the potato ... -
COVID-19 disruptions and pivoting in SMEs in the hidden middle of Kenya’s potato and fish value chains
(Wageningen academic, 2023)Small and medium enterprises (SMEs) in Kenya were severely affected by the COVID-19 pandemic and restrictions put in place to contain it. This study assesses the impact of these restrictions on the midstream of the potato ... -
Critical aspects of aquafeed value chain in the Kenyan aquaculture sector
(Canadian Center of Science and Education, 2021)This article reviews critical aspects of the aquafeed value chain in the Kenyan aquaculture sector. Aquaculture production in Kenya has grown steadily in recent years, to more than 18,000 tons in 2019. Due to the ... -
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 ... -
Determinants of Households’ Resilience to Covariate Shocks: Empirical Evidence and Policy Implications from the Kenyan Fisheries and Aquaculture Sectors
(MDPI, 2024-09-13)This paper analyzes the factors influencing households’ resilience capacities to shocks within Kenya’s fisheries and aquaculture sectors and draws from primary data collected from 419 fish-dependent households across Kisumu, ... -
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 fish meal with black soldier fly larvae meal on growth performance and economic efficiency of Nile tilapia
(Fundamental and Applied Agriculture, 2024-06-11)This study evaluated the effect of replacing fish meal (FM) with black soldier fly (Hermatia illucens) larvae meal (BSFLM) on growth performance and economic efficiency of Nile tilapia (Oreochromis niloticus) production. ... -
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, ...
