Abstract
Preference for an odor associated with protein is only seen in protein-deprived rats. We hypothesized that rats depleted of the amino acid threonine (THR) would prefer a flavored solution paired with a THR replete diet. Rats were given a flavored drink paired with THR-deficient (DEV) diet followed by a second flavor paired with a corrected (COR) diet. In choice testing, the animals clearly selected the COR-paired flavor, while control rats preferred the other flavor. This did not, however, differentiate between aversion to the DEV-paired flavor and learned preference for the COR-paired flavor. In subsequent tests, an unpaired flavor was given rather than the DEV-paired flavor. The COR-paired flavor was included in the test as before. In the second and third trials, using either DEV or a less profoundly deficient diet, animals depleted of THR selected the COR-paired flavor to a greater extent than control rats. We conclude that animals deficient in the essential amino acid, THR, show a learned preference for the flavor paired with repletion.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 909-914 |
| Number of pages | 6 |
| Journal | Physiology and Behavior |
| Volume | 51 |
| Issue number | 5 |
| DOIs | |
| State | Published - Jan 1 1992 |
| Externally published | Yes |
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Keywords
- Amino acid nutrition
- Amino acid preference
- Conditioned taste aversion
- Food intake
- Learned aversion
- Learned preference
- Rat
- Specific appetite
ASJC Scopus subject areas
- Experimental and Cognitive Psychology
- Behavioral Neuroscience
Cite this
Learned preference for the limiting amino acid in rats fed a threonine-deficient diet. / Gietzen, Dorothy W.; McArthur, Laura H.; Theisen, Jennifer C.; Rogers, Quinton.
In: Physiology and Behavior, Vol. 51, No. 5, 01.01.1992, p. 909-914.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Learned preference for the limiting amino acid in rats fed a threonine-deficient diet
AU - Gietzen, Dorothy W.
AU - McArthur, Laura H.
AU - Theisen, Jennifer C.
AU - Rogers, Quinton
PY - 1992/1/1
Y1 - 1992/1/1
N2 - Preference for an odor associated with protein is only seen in protein-deprived rats. We hypothesized that rats depleted of the amino acid threonine (THR) would prefer a flavored solution paired with a THR replete diet. Rats were given a flavored drink paired with THR-deficient (DEV) diet followed by a second flavor paired with a corrected (COR) diet. In choice testing, the animals clearly selected the COR-paired flavor, while control rats preferred the other flavor. This did not, however, differentiate between aversion to the DEV-paired flavor and learned preference for the COR-paired flavor. In subsequent tests, an unpaired flavor was given rather than the DEV-paired flavor. The COR-paired flavor was included in the test as before. In the second and third trials, using either DEV or a less profoundly deficient diet, animals depleted of THR selected the COR-paired flavor to a greater extent than control rats. We conclude that animals deficient in the essential amino acid, THR, show a learned preference for the flavor paired with repletion.
AB - Preference for an odor associated with protein is only seen in protein-deprived rats. We hypothesized that rats depleted of the amino acid threonine (THR) would prefer a flavored solution paired with a THR replete diet. Rats were given a flavored drink paired with THR-deficient (DEV) diet followed by a second flavor paired with a corrected (COR) diet. In choice testing, the animals clearly selected the COR-paired flavor, while control rats preferred the other flavor. This did not, however, differentiate between aversion to the DEV-paired flavor and learned preference for the COR-paired flavor. In subsequent tests, an unpaired flavor was given rather than the DEV-paired flavor. The COR-paired flavor was included in the test as before. In the second and third trials, using either DEV or a less profoundly deficient diet, animals depleted of THR selected the COR-paired flavor to a greater extent than control rats. We conclude that animals deficient in the essential amino acid, THR, show a learned preference for the flavor paired with repletion.
KW - Amino acid nutrition
KW - Amino acid preference
KW - Conditioned taste aversion
KW - Food intake
KW - Learned aversion
KW - Learned preference
KW - Rat
KW - Specific appetite
UR - http://www.scopus.com/inward/record.url?scp=0026771129&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0026771129&partnerID=8YFLogxK
U2 - 10.1016/0031-9384(92)90069-E
DO - 10.1016/0031-9384(92)90069-E
M3 - Article
C2 - 1615051
AN - SCOPUS:0026771129
VL - 51
SP - 909
EP - 914
JO - Physiology and Behavior
JF - Physiology and Behavior
SN - 0031-9384
IS - 5
ER -