scholarly journals Taste preference behavior in Long-Evans rats and Egyptian spiny mice

1993 ◽  
Vol 31 (4) ◽  
pp. 307-310 ◽  
Author(s):  
Nicholas Kolodiy ◽  
Gary M. Brosvic ◽  
David Pak ◽  
Sheryl Loeffler
Keyword(s):  
Taste Preference ◽  
Preference Behavior ◽  
Spiny Mice ◽  
Long Evans

Taste preference behavior of laboratory versus wild Norway rats.

1971 ◽  
Vol 77 (3) ◽  
pp. 489-494 ◽  
Author(s):  
Stephen A. Shumake ◽  
R. Dan Thompson ◽  
Charles J. Caudill
Keyword(s):  
Taste Preference ◽  
Preference Behavior ◽  
Norway Rats

Hypogeusia and taste preference behavior in the rat

Life Sciences ◽  
1967 ◽  
Vol 6 (7) ◽  
pp. 743-748 ◽  
Author(s):  
William B. Vance
Keyword(s):  
Taste Preference ◽  
Preference Behavior

scholarly journals Water and NaCl consumption in Long-Evans rats and Egyptian spiny mice

1993 ◽  
Vol 31 (4) ◽  
pp. 261-264 ◽  
Author(s):  
Nicholas Kolodiy ◽  
Gary M. Brosvic ◽  
Stacey Bailey ◽  
Kevin Hawley ◽  
David Pak ◽  
...  
Keyword(s):  
Spiny Mice ◽  
Long Evans

Increased oral and decreased intestinal sensitivity to sucrose in obese, prediabetic CCK-A receptor-deficient OLETF rats

2005 ◽  
Vol 288 (1) ◽  
pp. R292-R300 ◽  
Author(s):  
Bart C. De Jonghe ◽  
Andras Hajnal ◽  
Mihai Covasa
Keyword(s):  
Type 2 Diabetes ◽  
Weight Gain ◽  
Taste Preference ◽  
Separate Experiment ◽  
Sucrose Intake ◽  
Oletf Rats ◽  
Oral Stimulation ◽  
Preference Functions ◽  
Long Evans

CCK-A receptor-deficient Otsuka Long-Evans Tokushima fatty (OLETF) rats are hyperphagic and develop obesity and Type 2 diabetes. In this strain, taste preference functions have not been investigated. Therefore, a series of short-access, two-bottle tests were performed in age-matched prediabetic OLETF and nonmutant Long-Evans Tokushima Otsuka (LETO) rats to investigate preference for sucrose (0.03, 0.1, 0.3, or 1.0 M) presented with a choice of water. To discern orosensory from postgastric factors that may contribute to this preference, in a separate experiment, rats were allowed to sham feed sucrose in the absence or presence of duodenal sucrose infusion (0.3, 0.6, or 1.0 M). In the two-bottle real-feeding tests, OLETF rats exhibited a greater preference for 0.3 M sucrose (91.2 ± 1.7 and 78.5 ± 3.4% for OLETF and LETO, respectively; P < 0.01) and 1.0 M sucrose (65.3 ± 1.2 and 57.5 ± 2.7% for OLETF and LETO, respectively; P < 0.05) than LETO rats. OLETF rats also sham fed less of the lowest (0.03 M; 33.8 ± 4.8 and 58.3 ± 7.3 ml for OLETF and LETO, respectively; P < 0.05) and more of the highest (1.0 M; 109.9 ± 6.5 and 81.0 ± 3.9 ml for OLETF and LETO, respectively; P < 0.01) concentration of sucrose relative to LETO rats. Finally, intraduodenal sucrose infusions (0.6 and 1.0 M) produced a smaller reduction of 0.3 M sham sucrose intake [14.1 ± 8.1 vs. 52.5 ± 3.3 ml and 49.4 ± 8.0 vs. 82.4 ± 3.2 ml for 0.6 M ( P < 0.01) and 1.0 M ( P < 0.05) infusions in OLETF and LETO, respectively]. These findings demonstrate that OLETF rats display an increased preference for sucrose, an effect that is at least partially influenced by the orosensory stimulating effect of sucrose. This enhanced responsiveness to oral stimulation, coupled with the deficit in responding to the postingestive feedback of intestinal sucrose, may contribute additively to the development of hyperphagia and weight gain in OLETF rats.

scholarly journals The effect of anosmia on taste preference behavior as a function of deprivation conditions

1971 ◽  
Vol 23 (1) ◽  
pp. 9-11
Author(s):  
H. E. Marks ◽  
J. D. Seago ◽  
N. R. Remley
Keyword(s):  
Taste Preference ◽  
Preference Behavior

A Comparison of Norway Rats and Spiny Mice on Measures of Activity and Exploration

1981 ◽  
Vol 49 (1) ◽  
pp. 11-14 ◽  
Author(s):  
Jennifer Wheeler Makin ◽  
Richard Deni
Keyword(s):  
Open Field ◽  
Sex Difference ◽  
Adult Male ◽  
Rattus Norvegicus ◽  
Species Differences ◽  
Behavioral Activity ◽  
Acomys Cahirinus ◽  
Spiny Mice ◽  
Long Evans ◽  
Norway Rats

In Exp. 1 6 adult male Long-Evans derived rats ( Rattus norvegicus) and 6 adult male spiny mice ( Acomys cahirinus) were observed individually inside a 60-cm × 30-cm × 30-cm open field during a 15-min. session. Measures of locomotion, immobility, self-grooming, rearing-up, and object contact were obtained. Tests of species differences indicated that spiny mice showed significantly more locomotor and rearing behavior than Norway rats. In Exp. 2 12 adult Norway rats (6 male, 6 female) and 12 adult spiny mice (6 male, 6 female) were observed individually inside a six-compartment maze during a 15-min. session. Although no sex difference in maze exploration was found, spiny mice showed significantly more maze exploration than Norway rats. These results suggest that spiny mice, highly precocial in development relative to Norway rats, exhibit correlates of that neonatal competence as adults evidenced by greater behavioral activity and locomotor exploration in novel environments.

Conditioned Taste Aversions and Latent Inhibition in Egyptian Spiny Mice and Long-Evans Rats

1995 ◽  
Vol 80 (3) ◽  
pp. 995-998
Author(s):  
Gary M. Brosvic ◽  
Pamela Hartsell ◽  
Jill Spruill ◽  
Mary Correla ◽  
Patricia Long ◽  
...  
Keyword(s):  
Taste Aversion ◽  
Latent Inhibition ◽  
Conditioned Taste Aversion ◽  
Double Blind ◽  
First Report ◽  
Spiny Mice ◽  
Control Procedures ◽  
Long Evans

The acquisition and extinction of a conditioned taste aversion in Egyptian spiny mice and Long-Evans rats was compared during 20 posttest sessions using a cross-over design and double-blind control procedures. Spiny mice preexposed to a sucrose CS demonstrated more latent inhibition and a faster rate of extinction than did Long-Evans rats preexposed to the same CS. Preference indices did not differ between control animals or as a function of gender. The present results are the first report of the effects of latent inhibition on learning taste aversion in Egyptian spiny mice.

Ultrastructural Investigation of Spontaneous Pituitary Adenomas in Aging Sprague-Dawley Rats

1982 ◽  
Vol 40 ◽  
pp. 216-217
Author(s):  
D. J. McComb ◽  
J. Beri ◽  
F. Zak ◽  
K. Kovacs
Keyword(s):  
Microscopic Study ◽  
Pituitary Adenomas ◽  
Wistar Rats ◽  
Microscopic Level ◽  
Sprague Dawley ◽  
Prolactin Cells ◽  
Light Microscopic Level ◽  
Ultrastructural Investigation ◽  
Sprague Dawley Rats ◽  
Long Evans

Investigation of the spontaneous pituitary adenomas in rat have been limited mainly to light microscopic study. Furth et al. (1973) described them as chromophobic, secreting prolactin. Kovacs et al. (1977) in an ul trastructural investigation of adenomas of old female Long-Evans rats, found that they were composed of prolactin cells. Berkvens et al. (1980) using immunocytochemistry at the light microscopic level, demonstrated that some spontaneous tumors of old Wistar rats could contain GH, TSH or ACTH as well as PRL.

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