Workshop on Food Production and Feeding Technics, Porto, October 19-21 1993

MEDRAP II
RAB/89/005-RER/87/009

FIELD DOCUMENT

93/26

WORKSHOP ON FOOD PRODUCTION AND FEEDING TECHNICS
Porto, October 19–21 1993

Edited by MEDRAP II Regional Center
Tunis - Tunisia

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Preparation of this Document

This document is one of a serics of documents prepared during the course of the Project identified in teh title page. The conclusions and recommcndations given were considered appropriate at the time it was prepared. They may be modified in the light of further knowledge gained at subsequent stages of the Project.

The designations, comployed and the presentation of the material in this document do not imply the expression of any opinion whatsoever on the part of the Food and Agriclture Organisation of the United Nations concering the legal status of any country, territoyr, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.

The opinions expressed by the Authors in this document are not necessarily those of FAO or the Governments of the participating countries.

Abstract

According to its new strategy, MEDRAP II offered to private food producers the opportunity to join the workshop on food production and feeding technics, held in Porto (Portugal) on October 1993, in order to update participants, to exchange information with researchers and to enrich the debate and discussions through their knowledge and experiments in the relevang field.

On the matter of nutritional requirements and processing, it has been focused on the number of uncertainties concerning particularly the methodology accuracy and the need for a permanent monitoring and research to be undertaken in collaborative activities.

Despite the increasing interest for aquaculture of marine finfish within the Medierranean region, there is little quantitative data on the essential nutrient requirements of species such as gilthead, sea-bream and turbot. It was recognised that basic research should be promoted to help create a viable feed industry to ensure sustainable development of aquaculture.

In order to reduce the reliance of member countries on imported feed ingredients, it was stressed the need to develop appropriate feeding technology and to maximise the utilisation of locally available feed ingredient sources.

The session on diet formulation and manufacturing addressed the problems and issues of developing diets that are more specific, profitable and well adapted to the Mediterranean culture conditions. It was recorded three main parameters of great concern to the farmer:

- the feed composition,
- the energetic cœficient of the feed,
- the digestibility of the feed.

Participants noted that protein efficiency was varying according to the ecological conditions of fish growth speed and fish retention amount of protein.

The following recommendations were reported:

the need for the establishment of a data base on the national agricultural feed resources of member countries;
the need for strengthening national expertise in aquaculture nutrient and feed technology by conducting specialised training courses at the technical and the higher scientific levels;
the need to review and harmonise experimental methodologies;
the need to conduct joint research studies on aspects of fish-shrimp nutrition;
the need to evaluate the effect of changes in dietary feeding strategies on the economic viability of aquaculture production systems and their environmental, socio-economic and legal impacts.

Acknowledgements

The Editor would like to thank the Portuguese authorities, namely Mr. Jaime Menezes, the National Coordinator and Prof. A. Oliva Teles at the «Instituto de Zoologia de Porto», for their support to the organisation of this activity. Thanks are also addressed to the participants from the Member/Associated countries who are also addressed to the participants form the Member/Associated countries who accepted to countries who accepted to contribute to the workshop.

Note from the reviser

The revision and publication of this document could only be done a long time after the closure of the project. This has led to some difficulties in finalising the documents and implementing corrections, because authors and contributors as well as some of the original material or files were no longer available.

Therefore contributions from participants and session papers annexed to most of the documents were left in their original form. No language corrections were introduced, the content was not modified and left under their respective authors' responsibility.

Considering the above, we hope that the reader will understand that a standard of publication could not be maintained on a level as high as we would have liked it to be.

United Nations Development Programme

Food and Agriculture Organisation of the United Nations

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Agenda

List of participants

Workshop report

Communications

- National reports on nutrition : Experience on the use of brown fish meal finfish diets
by A. Oliva Teles, Portugal

- Present status and perspectives for aquaculture in portugal
by A. Gouveia, Portugal

- Food production and feeding techniques aquaculture activities in libya
by S. El Ajnaf, Libya

- Nutritional statement in aquaculture in Turkey
by U.Y. Kesici, Turkey

- L'alimentation des poissons en Tunisie (actuelle et perspectives)
by B. Brini, Tunisia

- Elaboration d'un aliment composé sec pour l'élevage de la daurade
by Bechir Brini, Tunisie.

- National food production and feeding techniques in the republic of Croatia
by Miro Kraljevic, Croatia

- Nutritional statement in Malta
by S. Deguarra, Malta