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Weik, H., & Altmann, H. J. (1971). [Behavior of blood lipids during fasting in the horse]. Zentralbl Veterinarmed A, 18(2), 131–138.
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Altmann, H. J., & Weik, H. (1971). [Serum fatty acid patterns of phospholipid fractions in horses]. Z Tierphysiol Tierernahr Futtermittelkd, 28(5), 285–288.
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Archer M,. (1971). Preliminary studies on the palatability of grasses, legumes and herbs to horses. Vet Rec, 89, 236–240.
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Bertram, D. S. (1971). Mosquitoes of British Honduras, with some comments on malaria, and on arbovirus antibodies in man and equines. Trans R Soc Trop Med Hyg, 65(6), 742–762.
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SchäFer M,. (1971). Das Sorraiapferd; Anmerkungen zur Problematik des SPEED – EBHARDT'schen Typs III. Säugetierk Mitt, 19, 231–249.
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Bell, R. H. V. (1971). A grazing ecosystem in the Serengeti. Sci Am, 225(1), 86–93.
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Trivers, R. L. (1971). The evolution of reciprocal altruism. Quart Rev Biol, 46(1), 35–57.
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Gardner, E. L., & Engel, D. R. (1971). Imitational and social facilitatory aspects of observational learning in the laboratory rat. Psychon. Sci., 25(1), 5–6.
Abstract: Rats acquired a food-motivated leverpressing response by “observational learning” or by trial-and-error learning under conditions of social facilitation or isolation. Both the observational learning and social facilitation Ss learned faster than did the isolated trial-and-error Ss. There was no difference in speed of learning between the observational learning and social facilitation groups. It is suggested that some previous studies purporting to demonstrate observational learning may have demonstrated socially facilitated trial-and-error learning instead.
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Ogbourne, C. P. (1971). Variations in the fecundity of strongylid worms of the horse. Parasitology, 63(2), 289–298.
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Pellegrini Sw,. (1971). Home range, territoriality and movement patterns of wild horses in the Wassuk Range of Western Nevada.
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