Premium
Causes of Preferences Exhibited by Animals for Certain Inbred Lines of Corn 1
Author(s) -
Roberts E.,
Hoener Irwin R.
Publication year - 1941
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1941.00021962003300050007x
Subject(s) - agricultural experiment station , animal husbandry , citation , inbred strain , library science , fertility , agricultural science , microbiology and biotechnology , biology , sociology , agriculture , computer science , genetics , demography , ecology , population , gene
CCORDING to previous work by Roberts, Holbert, and QuisenA berry,3 rats showed distinct preferences for certain inbred lines of corn. The extremes of the lines tested were Wisconsin R3 and Illinois 90, R3 being referr red.^ These two lines were chosen for further work, especially in respect to the cause of preference. Circular cages were used and the positions of the feed dishes were changed daily. The corn was ground in a Hobart mill. Nearly all passed through a 20-mesh sieve and approximately 53y0 passed through a sj-mesh sieve. Daily feed consumption was recorded and dishes refilled. Animals were kept on test for 4 days, after which they were placed on the laboratory stock ration for 3 days or more before being used on another preference test. The peference tests involving R3 and 90 grown in I937 showed a marked preference for R3. The amount of R3 eaten was nearly four times that of 90 (Table I ) .