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From its establishment in 1974, the International Livestock Center for Africa (ILCA) has followed a systems approach. Research planning and implementation incorporates description of systems, diagnosis of constraints, development and evaluation of interventions, and transfer of appropriate techno...


Rey, B.Fitzhugh, H.K.[Systems approach to livestock development oriented research: ILCA's experience]Systems approach to livestock development oriented research: ILCA's experience

Annual estimates of production traits over a 22 year period (1965-1987) for Black Head Persian sheep (BHP) from Malya and West Kilimanjaro research centers in Tanzania were utilized to analyse variation of flock productivity over time. Principal component analysis was used to anlyse the variation...


Rey, B.Das, S.M.[A systems analysis of inter-annual changes in the pattern of sheep flock productivity in Tanzanian livestock research centres]A systems analysis of inter-annual changes in the pattern of sheep flock productivity in Tanzanian livestock research centres

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