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Accueil du site → Doctorat → Pays-Bas → 2000 → Development of a decision support system for individual dairy farms in mixed irrigated farming systems in the Nile Delta

Wageningen Universiteit (2000)

Development of a decision support system for individual dairy farms in mixed irrigated farming systems in the Nile Delta

Tabana, A.

Titre : Development of a decision support system for individual dairy farms in mixed irrigated farming systems in the Nile Delta

Auteur : Tabana, A.

Université de soutenance : Wageningen Universiteit

Grade : PhD thesis 2000

Résumé partiel
The principal animal production system in Egypt is the mixed crop-livestock production system with a semi-intensive/semi-commercial orientation. The development strategies emphasized in this study contribute to the development and implementation of improved technologies.

The role and place of the livestock sector and its contribution to the national economy, as well as the development of external trade in milk and dairy products in the past 10 years were studied. The potential for dairy improvement is discussed and it is concluded that rapid population growth along with social and economic changes will further increase the demand for animal products. The traditional mixed farming systems were studied in detail. As part of these studies, on-farm and on-station experiments on animal nutrition and feed utilisation were conducted. Additionally a computerised model of the mixed crop-dairy farming systems was developed to help decision-makers at farm level to obtain an optimal cropping plan and feeding system with maximum income.

The farm management information system was developed in the context of a mixed farming system in the northern part of Egypt. An identification and description of the management practices of both crop and dairy sub-systems resulted in a better understanding of the dairy farming systems and established the boundaries of the components that are used as the base for modelling the whole farming system. The constraints of the systems were also identified with special attention for feeds and feeding. Finally, this information was used to design and perform nutritional studies, which along with other information was was used to develop a decision support system for crop-dairy mixed farms.

One hundred and fifty five samples of maize silages made on-farm were taken to be nutritionally chracterised through visual inspection as well as on the basis of chemical composition. Good quality silages were obtained, indicating adequate preservation for all silages. The highest qualities corresponded to whole-plant maize (without removing ears), ensiled at an average age of 108 days, after 17 days of fermentation, and, up to a 45 days off-take feeding period (after opening of the silo). Variety and type of chopper used in this study, had no significant effect on silage quality. The final conclusion is that, small farmers easily adopted silage-making as an intervention as indicated by the quality of maize silage produced on-farm.

Mots clés : livestock / dairy farming / irrigation / crops / egypt

Présentation

Page publiée le 27 mars 2008, mise à jour le 3 juin 2022