The exact detailed procedure for setting up the operations of data card punching and processing was demonstrated. Constraints for both left-hand and right-hand statements on the data cards and instructions were described. Column and row ranging was reviewed. Parametric analysis was discussed, but probably will not be appropriate until more exact constraints on nutrient content and requirements for various species size and husbandry type fish and for commodities are accumulated. Actual employment of this formulation technique must await the availability at Haki, of the necessary computer programme for linear programming of feeds. It was recommended that the station consider becoming a part of the INFIC3 system as a source point for Hungarian commodities.
At the request of Dr Müller, the author went to Debrecen to visit BIOGAL, the largest pharmaceutical plant in the vicinity which could supply premix preparations of vitamin and mineral concentrates for large scale feed manufacture. The company pledged cooperation in supplying those vitamins and other pharmaceuticals which Haki would need to manufacture small test lots of premixes for experiments with carp and catfish. The company currently produces 66 percent of the animal premixes used in Hungary. The drawback was the problem of supplying premix in small quantities. Only 1 t of material can be mixed at one time and this amount, even with extenders, would supply Haki for several years. Therefore a compromise was agreed to: BIOGAL would supply materials for the Haki feed mill to make its own small amounts of premixes needed, and the formulations developed and tested successfully would then be made available to BIOGAL for formulations and supply to larger scale commercial demands from the larger state fish farms and fish rearing cooperatives. One logical premix for use in the sheatfish diets to be made from the fish waste at Bikal and from the dry mix manufactured in the Haki mill can be found in Appendix 1.
3 International Network of Feed Information Centres
