The part ic ipat ion of the University of Debrecen in MAHOP project - demonstrat ion of the most important research

and development results and investments

Dr. Stünd l Lász lópro jec t l eader

DEBRECENI EGYETEM

MEZŐGAZDASÁG-, ÉLELMISZERTUDOMÁNYI ÉS

KÖRNYEZETGAZDÁLKODÁSI KAR

„Development of technology, knowledge transfer and innovation infrastructure supporting the breeding and production of significant fish

spices from angling and fish farming.” MAHOP-2.1.1-2016-2017-00002 (RESEARCHFISH)

Gödöllő, 2020. szeptember 29.

Financial background

- Total budget of the University Of Debrecen

Costs Amount (Gross)

Personnel costs 46 100 080 HUF

Acquisition costs 84 265 913 HUF

Construction costs 23 000 000 HUF

Material costs 28 083 560 HUF

Dissemination costs 948 360 HUF

Service costs 7 350 000 HUF

Procurement costs 340 000 HUF

Total 190 087 913 HUF

Main aims of the project

- WP1: Improve the production technology of Europian Perch (Perca fluviatilis)

- WP3: Reducing the organic matter content of effluent water by using aquaponics

- WP5: Development of innovative feeding technologies, based on alternative protein sources in intensive perchrearing

- WP6: Development of a floating cage prototype for the post-rearing of perch

- WP9: Creation of a website and social media in Hungarian and English

- WP10: Project implementation

University of Debrecen: 11 project activities

Activities of University of Debrecen in MAHOP-2.1.1-2016-2017-00002 project

Investment elements1. Design of a modular experimental aquarium system: 12 units of aquaria with a

volume of 36 litres, 24 units of aquaria with a volume of 18 litres

2. Larval rearing units: water recirculation system with 6 tanks, conical tanks

(black superficies and white cone)

3. Lighting with LED technology for aquaponics: lighting and heating devices

4. Effluent water treatment system: zooplankton production units and macro-

invertebrate reactors

5. Feed production system

Activities of University of Debrecen in MAHOP-2.1.1-2016-2017-00002 project

5. Floating cage prototype: development of a platform for the optimal farm technology conditions during outdoorrearing

6. Computer equipment: PCs, laptops, multifunctional printer

7. Reconstruction of the puffer pond: construction of a water reservoir with a water volume of 300 m3, which is suitablefor the treatment and passivation of the effluent water from different systems

8. Reconstruction of the slab of the Laboratory, shielding, security system

Research and development activities of UD in MAHOP-2.1.1-2016-2017-00002 project

1. Support the market introduction and involvement in production of new aquaculture species with good market potential

1.1. Development of the production technology of European perch in RAS

- Europian perch: subsidiary role in extensive fish production, significant market interest

- Increased market demand: expansion of aquaculture production, development of farming and feeding technology required

- Our goal was to identify the optimal parameters of farming technology rearing

- We studied the effect of light intensity in a few-month-old stock of perch: the most favorable production parameters were achieved

under moderate lighting. Increasing the turbidity of the water had the best results compared to the stock grown in full light, in the case

of the treatments kept in full darkness it had no effect on the production parameters.

Research and development activities of UD in MAHOP-2.1.1-2016-2017-00002 project

1. Support the market introduction and involvement in production of new aquaculture species with good market potential

-During intensive rearing, the color of the tank influences the stress status of the fishes and the production parameters. Our aim wasto investigate how the darkening of different parts of the tank affects on the production and stress parameters of the perch juveniles

-Fish reared in dark-bottomed tank (DB) showed significantly higher vitamin - E and vitamin - C concentration and statistically lowercortisol and catalase concentration compared to other treatments

Survival rate

(%)BWf (g) SGR (%/day) FCR (g/g) CV% Condition factor

DS 10048,70 ±

11,21a0,76 ± 0,08a 1,40 ± 0,19 22,44 ± 4,66 2,66 ± 0,25

DB 100 54,24 ± 9,70b 1,00 ± 0,06b 1,29 ± 0,13 17,51 ± 2,46 2,70 ± 0,27

K 10049,22 ±

11,21a0,84 ± 0,14ab 1,38 ± 0,24 22,40 ± 6,56 2,62 ± 0,25

Research and development activities of UD in MAHOP-2.1.1-2016-2017-00002 project

1. Support the market introduction and involvement in production of new aquaculture species with good

market potential

- Development of perch feeding technology: production and enrichment of living feed organisms, development of age-specific feed

recipes, using alternative protein sources and bioactive feed supplements

- Slow growth, low feeding intensity

- Juveniles: use of sinking feeds, continuous feeding, feeding rate does not affect production parameters

- One- and two-years rearing: sensitive for water temperature and strong light, feed waste, feeding: twice a day, use floating feed

Research and development activities of UD in MAHOP-2.1.1-2016-2017-00002 project

1. Support the market introduction and involvement in production of new aquaculture species with good market potential

1.3. Development of off-seasonal artificial propagation technology of perch

• Breeding stock from fish pond, natural spawning, then the fertilized eggs were collected and hatched under artificialconditions

• The best option to produce the broodstock in own RAS (disadvantages of imported broodstock: stress, diseases)

Research and development activities of UD in MAHOP-2.1.1-2016-2017-00002 project

2. Reducing the organic matter content of effluent water from fish farms by using innovative water treatment technologies:

2.1. Utilization of effluent water generated by perch farming in an aquaponic system for growing various plants

- Excellent results for basil and chili pepper varieties (jalapeno, red and yellow habanero)

Research and development activities of UD in MAHOP-2.1.1-2016-2017-00002 project

2. Reducing the organic matter content of effluent water from fish farms by using innovative water treatment technologies:

2.2. Treatment of effluent water by zooplankton species, development of technology for enrichment ofplanktonic organisms of different sizes with bioactive substances

- Production of zooplankton stocks (Paramiceum sp., Daphnia sp., Artemia sp.) and enrich with traceelements (Co and Mn)

Research and development activities of UD in MAHOP-2.1.1-2016-2017-00002 project

2. Reducing the organic matter content of effluent water from fish farms by using innovative water treatment technologies:

- Utilization of solid parts of effluent water by production of macroscopic organisms

- Development the production technology and enrichment of Tenebrio molitor (flour beetle) larvae

- Evaluate the biological value of the Tenebrio molitor meal by model animals (rats)

Research and development activities of UD in MAHOP-2.1.1-2016-2017-00002project

3. Reducing the dependence on fish oil and fishmeal by introducing innovative feedingtechnologies

- Use of alternative protein sources to reduce the fishmeal content in the compound feed for perch

- Study of perch digestion: study of protein, fat and carbohydrate digestion from a lyophilized tissuesample

- Create an In vitro digestion model

Research and development activities of UD in MAHOP-2.1.1-2016-2017-00002 project

4. Support sustainable production methods

Development of a floating cage prototype for the post-rearing of perch in lake: solar-powered platform with automatic feeder and lightening: units with 20 - 5 - 2 m3

useful water volume

14-weeks production test: 1,500 fish with avarage weight of:72.9gramms

Results: 87.5% survival rate, 137gramms body weight

SGR: 0.64%/day; FCR: 1.3kg/kg; 60% biomass increase

Thank you for your attention!

The work was supported by MAHOP- 2.1.1-2016-2017-00002 (RESEARCHFISH)project