Browsing WorldFish Community by Author "Verdegem, M."
Now showing items 1-17 of 17
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Aquaculture in action: reducing the need for feed
(2019)Type: News Item/Press ItemA novel aquaculture feeding concept is exploiting the pond ecosystem to encourage farmed fish and shrimp to ingest naturally occurring food alongside feed – a system that has the potential to reduce both production costs ... -
CGIAR Research Program on Fish Agri-Food Systems: A synthesis
(2021)Type: BriefThe fish agri-food system connects supplies of fish and other aquatic foods through multiple pathways and scales to diverse consumers across the planet and is a key component of the global agri-food systems. Fish and other ... -
Comment on Water footprint of marine protein consumption -- aquacultures link to agriculture
(2014)Type: Journal ArticleIn their article Freshwater savings from marine protein consumption (2014 Environ. Res. Lett. 9 014005), Gephart and her colleagues analyzed how consumption of marine animal protein rather than terrestrial animal protein ... -
Dietary non-starch polysaccharides influenced natural food web and fish production in semi-intensive pond culture of Nile tilapia
(2020)Type: Journal ArticleDietary non-starch polysaccharides (NSP) changes the nutrient digestibility and faecal characteristics in fish. This study assessed the effect of the type of dietary NSPs on fish production and the contribution of natural ... -
Effect of dietary carbohydrate to lipid ratio on performance of Nile tilapia and enhancement of natural food in pond aquaculture
(2020)Type: Journal ArticleThis study tested the effect of two diets differing in carbohydrate to lipid (CHO:LIP) ratio (4.7 vs. 19.5 g/g) on the contribution of natural food and the total fish production in tilapia ponds. Eight ponds, each divided ... -
Effect of dietary protein to energy ratio, stocking density and feeding level on performance of Nile tilapia in pond aquaculture
Type: Journal ArticleThere is growing interest to understand the dietary P:E requirements for the supplemental feed used in tilapia pond culture where natural food contributes to production. In an on-farm trial, we tested the effect of lowering ... -
Effects of carbohydrate addition frequencies on biofloc culture of Pacific white shrimp (Litopenaeus vannamei)
(2021)Type: Journal ArticleIn Pacific white shrimp culture, adding organic carbohydrate to the pond besides feed improves water quality and shrimp performance. While the feeding frequency has significant effects on shrimp production, how often ... -
Effects of carbohydrate sources on a biofloc nursery system for whiteleg shrimp (Litopenaeus vannamei)
(2021)Type: Journal ArticleIn biofloc technology carbohydrate is added to stimulate the biofloc growth, the latter helps to improve water quality, reduce the need for water exchange and may serve as natural shrimp feed. The large diversity among ... -
Feeding both pond and fish: A pathway to ecological intensification of aquaculture systems
(2019)Type: OtherThe nutritious pond concept is a novel approach that enables the pond itself to contribute significantly to the diet of the farmed fish/shrimp. Our research shows that feeding the pond by balancing the carbon-to-nitrogen ... -
How is innovation in aquaculture conceptualized and managed? A systematic literature review and reflection framework to inform analysis and action
(2017)Type: Journal ArticleAquaculture has experienced spectacular growth in the past decades, during which continuous innovation has played a significant role, but it faces increasing criticism regarding its ecological and social sustainability ... -
In situ fatty acid production supports shrimp yields in diets lacking fish oil and fishmeal
(2020)Type: Journal ArticleUsing capture fishery‐derived fish oil and fishmeal in aquafeeds is unsustainable. This study mimicked semi‐intensive shrimp ponds, including primary producers, in mesocosm tanks. Fatty acid mass balances were computed to ... -
Metabolic growth, plankton selectivity, haemato-biochemical and intestinal morphometry of Nile tilapia (Oreochromis niloticus) fed a lysine-deficient diet in earthen ponds
(2022)Type: Journal ArticleSustainable aquaculture requires the efficient use of natural pond resources as well as supplements to meet the dietary requirements of fish species. However, aquaculture diets are often produced without considering the ... -
Nitrogen retention, nutrient digestibility and growth efficiency of Nile tilapia (Oreochromis niloticus) fed dietary lysine and reared in fertilized ponds
(2021)Type: Journal ArticleTwo diets were formulated, a low lysine (LowL) and a balanced lysine diet (BalL), containing 9.10 and 13.10 g lysine kg−1 feed, respectively. Twenty fish (30.2 ± 1.9 g) per tank were stocked in 110-L tanks, mounted in a ... -
The Nutritious pond project
(2016)Type: NewsletterThe Nutritious Pond System has now implemented its activities on the ground for a year. The project is a partnership between a research organization (WorldFish), universities (Wageningen University and Can Tho University), ... -
Sustainable and accessible fish feeds for small-scale fish farmers
(2021)Type: BriefImproving feed accessibility for small-scale fish farmers is crucial to the inclusive growth of aquaculture. “Nutritious pond feeds” nourish the farmed fish and the pond organisms that help break down fish wastes and produce ... -
The seafood gap in the food-water nexus literature--issues surrounding freshwater use in seafood production chains
(2017)Type: Journal ArticleFreshwater use for food production is projected to increase substantially in the coming decades with population growth, changing demographics, and shifting diets. Ensuring joint food-water security has prompted efforts to ... -
WUR_Report to NWO Nutritious Pond 2017_September 2016 - September 2017
Type: Donor ReportDonor report on the Nutritious Pond project actvitiies for the year 2017. It includes all activities and outputs of the project , not only the one WorldFIsh is invovled in.
