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Experiments on the food preferences of wild rats (Rattus norvegicus Berkenhout)

Published online by Cambridge University Press:  15 May 2009

S. A. Barnett  and
Mary M. Spencer
S. A. Barnett
Affiliation:
Department of Zoology, Glasgow
Mary M. Spencer
Affiliation:
Ministry of Agriculture and Fisheries, Tolworth, Surrey
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1. Colonies of wild Rattus norvegicus Berkenhout were kept in closed rooms containing nesting sites. The conditions permitted breeding.

2. Seventy-six experiments, each lasting 6–35 days, were done to test the rats' food preferences. In each experiment except two, a choice was given between two foods, both available in excess. In the two exceptional experiments a choice between three foods was given.

3. Although marked preferences were shown, a food was rarely quite rejected in favour of an alternative.

4. Among cereals, wholemeal was preferred to wheat grains, but wheat grains were preferred to white flour; little or no white flour was eaten if wholemeal was available. Wheat germ was eaten only in small quantities when an alternative cereal was available, but in larger quantities if the alternative was sugar or a sugar-cereal mixture.

5. The addition of sugar or saccharin to cereals increased acceptability; sugar was preferred to saccharin.

6. The addition of arachis oil to wholemeal or wheat increased acceptability.

7. Cod-liver oil at 2·4 % acted as a deterrent.

8. Total calorific intake remained steady over short periods, but over several weeks rose as the mass of the rat colony increased. The higher the mean weight of the rats in a colony, the lower the calorific intake per unit weight of rat.

9. The amount of food eaten was partly determined by its calorigenic capacity: in particular, wet foods were eaten in much larger quantities than dry foods.

10. The food preferences of wild rats differ in several respects from those of white Rattus norvegicus.

11. Apart from palatability or flavour, the main factors influencing food preference were (a) previous experience and probably (b) the nutritional value of the food. The effect of previous experience was often observed when rats, accustomed to one food, gradually changed from the accustomed food to another. The stages of a change to a new food, or the establishment of a particular preference, varied, and are discussed in detail.

Type
Research Article
Information
Journal of Hygiene , Volume 51 , Issue 1 , March 1953 , pp. 16 - 34
Copyright
Copyright © Cambridge University Press 1953

References

Adolph, E. F. (1947). Urges to eat and drink in rats. Amer. J. Physiol. 151, 110–25.CrossRefGoogle ScholarPubMed
Armour, C. J. & Barnett, S. A. (1950). The action of dicoumarol on laboratory and wild rats, and its effect on feeding behaviour. J. Hyg., Camb., 48, 158–70.CrossRefGoogle ScholarPubMed
Barnett, S. A. & Spencer, M. M. (1951). Feeding, social behaviour and interspecific competition in wild rats. Behaviour, 3, 229–42.Google Scholar
Barnett, S. A. & Spencer, M. M. (1952). Responses of wild rats to offensive smells and tastes. Brit. J. Anim. Behav. (in the Press).Google Scholar
Cameron, A. T. (1947). The taste sense and the relative sweetness of sugars and other sweet substances. Sugar Res. Found. Inc., N.Y., Sci. Rep. Ser. no. 9.Google Scholar
Carlson, A. J. & Hoelzel, F. (1949). Influence of texture of food on its acceptance by rats. Science, 109, 63–4.CrossRefGoogle ScholarPubMed
Chitty, D. Bureau of Animal Population Reports (in the Press).Google Scholar
Chitty, D. & Shorten, M. (1946). Techniques for the study of the Norway rat (Rattus norvegicus). J. Mammal. 27, 63–78.CrossRefGoogle Scholar
Harris, L. J. & Moore, T. (1928). H‘ypervitaminosis’ and ‘vitamin balance’. Biochem. J. 22, 1461–77.CrossRefGoogle ScholarPubMed
Hausmann, M. F. (1932). The behaviour of albino rats in choosing food and stimulants. J. comp. Psychol. 13, 279–309.CrossRefGoogle Scholar
Hausmann, M. F. (1933). The behaviour of albino rats in choosing foods. II. Differentiation between sugar and saccharin. J. comp. Psychol. 15, 419–28.CrossRefGoogle Scholar
Miller, N. E. (1944). Experimental studies of conflict, in Hunt, J. McV. (ed.), Personality and the Behaviour Disorders. New York.Google Scholar
Moore, T. & Neuhaus, W. (1950). Über das Riechvermögen der Ratten. Schädlingsbekämpfung, 42, 108–11.Google Scholar
Scott, E. M. (1946). Self-selection of diet. I. Selection of purified components. J. Nutrit. 31, 397–406.CrossRefGoogle ScholarPubMed
Scott, E. M. & Quint, E. (1946). Self-selection of diet. III. Appetites for B vitamins. J. Nutrit. 32, 285–91.CrossRefGoogle Scholar
Scott, E. M. & Verney, E. L. (1947 a). Self-selection of diet. V. Appetite for carbohydrate. J. Nutrit. 34, 401–8.CrossRefGoogle Scholar
Scott, E. M. & Verney, E. L. (1947 b). Self-selection of diet. VI. The nature of appetites for B vitamins. J. Nutrit. 34, 471–80.CrossRefGoogle Scholar
Scott, E. M. & Verney, E. L. (1948). Self-selection of diet. VIII. Appetite for fats. J. Nutrit.36, 91–8.CrossRefGoogle Scholar
Spencer, M. M. (1953). Observations on the behaviour of rats and mice feeding on whole grains. J. Hyg., Camb., 51, 35–7CrossRefGoogle Scholar