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Volume 44, issue 6
Arch. Anim. Breed., 44, 661–670, 2001
https://doi.org/10.5194/aab-44-661-2001
© Author(s) 2001. This work is distributed under
the Creative Commons Attribution 3.0 License.
Arch. Anim. Breed., 44, 661–670, 2001
https://doi.org/10.5194/aab-44-661-2001
© Author(s) 2001. This work is distributed under
the Creative Commons Attribution 3.0 License.

  10 Oct 2001

10 Oct 2001

Ein Vergleich des Lernerfolges von Zwergziegen bei simultaner Zweifach- oder Vierfachwahlmöglichkeit in visuellen Differenzierungsaufgaben

H. Franz and E. Roitberg H. Franz and E. Roitberg
  • Forschungsinstitut ftlr die Biologie landwirtschaftlicher Nutztiere (FBN), Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany

Abstract. Title of the paper: A comparison of learning Performance of dwarf goats in Visual discrimination tasks with two or four simultaneously offered Stimuli
A comparison of learning Performance of dwarf goats in visual discrimination tasks with two or four simultaneously offered Stimuli (two-choice and four-choice design) was carried out with the automatic learning device 'Field Monitor'. One S+ Stimulus and three identical S- Stimuli by the four-choice design, and one S+ Stimulus and one S− Stimulus (the same patterns as by four choice) by two-choice design were offered. In both experimental designs the positions of Stimuli (simple geometric figures) on the screen changed pseudo-randomly after each choice.

Since the seventh test day the proportion of successfully learning kids by the four-choice design was substantially higher than that for the two-choice design. Our finding makes it questionable whether the internationally accepted two-choice design is really optimal. In our further experiments in which over 200 animals have been examined for several months the four-choice design has been involved providing a very successful learning.

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