Letter | Published:

Influence of Pregnancy and Social Facilitation on the Behaviour of the Grazing Sheep

Nature volume 166, page 74 (08 July 1950) | Download Citation

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Abstract

BAYER1 has shown that the presence of a hungry hen can increase the food consumption of a well-fed hen by as much as 60 per cent. This social facilitation has also been observed in fish2, rats3 and apes4. It is now reported in grazing sheep.

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References

  1. 1.

    , quoted by Katz, “Animals and Men. Studies in Comparative Psychology” (Longman, Green and Co., London, 1937).

  2. 2.

    , Physiol. Zool., 7, 85 (1934).

  3. 3.

    , J. Genetic Psychol., 41, 211 (1932).

  4. 4.

    , J. Comp. Psychol., 16, 171 (1933).

  5. 5.

    and , Vet. Record, 60, 105 (1948).

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Affiliations

  1. Rowett Research Institute, Bucksburn, Aberdeenshire.

    • D. E. TRIBE

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DOI

https://doi.org/10.1038/166074a0

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