NDLI: Effects of physical attributes and chemical composition of novel foods on food selection by Norway rats (Rattus norvegicus)

Content Provider	Springer Nature Link
Author	Hegab, Ibrahim M. Pan, Hemin Dong, Junyan Wang, Aiqin Yin, Baofa Yang, Shengmei Wei, Wanhong
Copyright Year	2013
Abstract	An organism’s food is a fundamental aspect of its survival niche. Free-ranging rodents are presented regularly with different types of novel food. To investigate the novel food selection process in Norway rats concerning chemical and physical characteristics, 288 laboratory bred Norway rats (Rattus norvegicus) were tested with a 2-h free choice for each animal. First, rats were tested against eight kinds of novel foods: corn, beans, broiler ration, soybeans, peanuts, rice, potatoes, and millet. Rats preferred corn over the other novel food types, and there was a significant positive correlation between the selective coefficient and carbohydrate content; rats chose novel food with highest energy content. Rats also appeared to be less neophobic to foods of high sugar content. Regarding physical characteristic, rats effectively differentiated between spectral colors of different wavelengths, and red-colored food was more attractive for rats than foods of four other colors. Small-sized food received the highest numbers of visits and longest feeding bouts compared to other sizes. These results suggest that the carbohydrates content, red color, and small size of novel food play a role in the novel food selection of Norway rats.
Starting Page	99
Ending Page	106
Page Count	8
File Format	PDF
ISSN	16124758
Journal	Journal of Pest Science
Volume Number	87
Issue Number	1
e-ISSN	16124766
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2013-06-18
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Rattus norvegicus Novel food Food selection Food composition Food shape Food color Entomology Agriculture Plant Pathology Ecology Forestry Plant Sciences
Content Type	Text
Resource Type	Article
Subject	Ecology Plant Science Ecology, Evolution, Behavior and Systematics Insect Science Agronomy and Crop Science

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