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The World of Protozoa, Rotifera, Nematoda and Oligochaeta

Ref ID : 2766

Claudia Ricci; [Tasso Intrinseco di Accrescimento naturale in Esperimenti su coorti e su colture di Massa]. Memorie dell'Istituto Italiano di Idrobiologia (Mem.Ist.Ital.Idrobiol.) 37:223-232, 1979

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Starting from homogeneous clone of Philodina roseola two sets of experiments for both life table studies and mass culture growths have been performed. The mass culture experiments have been achieved by using five replicates for both experiments. Two parallel studies by using life tables experimental design have been performed culturing a sufficient number of animals in each case. The r for mass cultures have been estimated by using a least-square algorithm on logistic model. Moreover following the usual procedure of life table methodology, the r have been estimated for these cases, also. The results achieved in parallel experiments by the two methods are compared and discussed.