About
18
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Introduction
Marta works on fish nutrition research. Her main research interest is to investigate the role of fatty acids on fish physiology, and development. She has been also working with protein and aminoacid roles in fish physiology and the replacement of FM and FO by alternative sources.
Additional affiliations
August 2014 - September 2017
January 2014 - January 2015
Position
- BSc Student
Description
- Exogenous enzymes supplementation enhanced digestibility of DDGS based diets for turbot (Scophthalmus maximus L.) juveniles
Education
April 2018 - May 2022
September 2015 - July 2017
September 2012 - July 2015
Publications
Publications (18)
A trial was conducted to evaluate the effect of dietary exogenous enzymes supplementation on apparent digestibility of macronutrients, energy and amino acids, and on digestive enzymes activity and gut microbiota of turbot (Scophthalmus maximus) juveniles fed diets rich in plant feedstuffs. For that purpose, a control diet was formulated to contain...
Study of the essential fatty acids requirements for meagre juveniles
The sustainable development of the aquaculture industry relies on the use of alternative conventional and emergent raw materials that contributes to a circular economy and to reduce the dependency on fish meals and fish oils coming from oceanic fish populations. Additionally, the genetic selection of farmed fish that can display higher growth and f...
In recent years, the aquaculture research and industry has undertaken intensive efforts to identify novel alternatives to fish meal, in an attempt to convert feeds to more effective and sustainable food for fish in response to the continuous growth of this sector. Among the several potential candidates, insect meals and single-cell proteins from ba...
Diversification of species and ingredients is essential for further developing aquaculture production. The present study aimed to evaluate the potential of a blend of microalgae oils and poultry oil as total replacers of fish oil in aquafeeds, a fast-growing species for aquaculture diversification, that was shown to require high dietary n-3 LC-PUFA...
The aim of the present study was to evaluate the effect of different n-3 LC-PUFA-rich microalgae replacing FO in larval diets, on performance, biochemical composition and health of gilthead sea bream (Sparus aurata). Dietary fish oil (FO) was replaced with oleic acid (OA) or 3 n-3 LC-PUFA-rich algae products (2 commercial products: All G Rich and D...
N-3 long-chain polyunsaturated fatty acids (LC-PUFA), particularly docosahexaenoic acid (22:6n-3, DHA), are the most important fatty acids with physiological significance in brain function of all vertebrates. Recently, novel lipid sources are available for the industry, including products obtained from microorganisms. Dietary fatty acid profiles ma...
A sustainable growth of the aquaculture sector implies the use of sustainable novel raw materials as replacers of the traditional fishmeal (FM) and fish oil (FO) ingredients. This fact has led to the development of sustainable and functional diets as part of a management strategy to reduce the effects on fish growth performance and health derived f...
The main objective of this study was to determine the effect of two feeding additives (cMOS: Actigen®, Alltech Inc., USA) and a phytogenic specifically designed for reducing ectoparasite incidence, combining garlic and labiatae herbal extracts (HERB; Delacon, Austria) on growth performance, stress and immune response of greater amberjack (Seriola d...
The present work investigated how the combination of poultry oil with microalgae oils, rich in eicosapentaenoic acid and docosahexaenoic acid (ED diets) or n-6 docosapentaenoic acid and n-3 docosahexaenoic acid (DD diets) modulates hepatic lipid metabolism in gilthead sea bream juveniles. Diets were tested using two different fishmeal contents (15%...
Few ingredients allow the complete replacement of fish meals (FM) and fish oils (FO) in aquaculture feeds without affecting fish performance or fillet nutritive value. This is due to the adequate content of essential nutrients, including the n-3 long-chain polyunsaturated fatty acids (n-3 LC PUFA), and the unique high palatability of FM and fish oi...
The replacement of fish oils in aquafeeds by vegetable oil sources is known to cause a depletion in dietary n-3 LC-PUFA, particularly in DHA and EPA. This decrease may influence several performance indicators in fish, including health status and stress resistance and response. The present study aimed to evaluate the effect of dietary n-3 LC-PUFA le...
Meagre (Argyrosomus regius) is a promising new aquaculture species, however with some bottlenecks to high-scale commercial production. One of those constraints are the scarce information about its nutritional requirements, which difficult the production of optimized diets and can lead to pathological alterations in liver, such as hepatic steatosis....
Meagre (Argyrosomus regius) is a promising new aquaculture species, with great potential due to its high growth rate, feed efficiency and easy adaptation to captivity. Essential fatty acids (EFA) are required to sustain growth, development, immune status and survival (Watanabe, 1982; Izquierdo, 2005). EFA requirement of meagre fingerlings were prev...
Questions
Questions (4)
Is Ethovision XT able to analyze fast start response in fish (200 fps)? Videos from a high speed camera at 200 fps
I want to isolate fish brain specific zones like telencephalon, cerebelum, opticum tectum. I am encoutering with the problem of hardness of tissue because in the moment we try to take fish brain from the skull the tissue is very soft and it is very tough to collect the whole tissue to further separate specific zones. Anyone who can give me some tips to carry out this sucessfully?
Thank you
I am looking for some software to analyse fish behaviour and activity (for instance swimming velocity and fast startle response) from video recorded files.
We are going to do a behaviour trial with fish. We will video record each fish individually behaviour after different stimuli. I was wondering how many individuals should we used for the correct replication levels for each treatment? Thank you very much
