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| Author | Forkman, B.; Boissy, A.; Meunier-Salaün, M.-C.; Canali, E.; Jones, R.B. | ||||
| Title | A critical review of fear tests used on cattle, pigs, sheep, poultry and horses | Type | Journal Article | ||
| Year | 2007 | Publication | Physiology & Behavior | Abbreviated Journal | Physiol. Behav. |
| Volume | 92 | Issue | 3 | Pages | 340-374 |
| Keywords | Fear; Cattle; Sheep; Pig; Poultry; Horse; Open field; Tonic immobility; Novel object | ||||
| Abstract | FORKMAN, B., A., BOISSY, M.-C., SALAUN, E., CANALI, AND R.B., JONES. A critical review of fear tests used on cattle, pigs, sheep, poultry and horses. PHYSIOL. BEHAV. 000-000, 2007. Fear is arguably the most commonly investigated emotion in domestic animals. In the current review we attempt to establish the level of repeatability and validity found for fear tests used on cattle, pigs, sheep and goats, poultry and horses. We focus the review on the three most common types of fear tests: the arena test (open field), the novel object test, and the restraint test. For some tests, e.g. tonic immobility in poultry, there is a good and broad literature on factors that affect the outcome of the test, the validity of the test and its age dependency. However, there are comparatively few of these well defined and validated tests and what is especially missing for most tests is information on the robustness, i.e., what aspects can be changed without affecting the validity of the tests. The relative absence of standardized tests hampers the development of applied ethology as a science. | ||||
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| ISSN | 0031-9384 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 4811 | ||
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| Author | Forkman, B. | ||||
| Title | Domestic hens have declarative representations | Type | Journal Article | ||
| Year | 2000 | Publication | Animal Cognition | Abbreviated Journal | Anim. Cogn. |
| Volume | 3 | Issue | 3 | Pages | 135-137 |
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| Abstract | It is generally considered that information can be stored either as a procedural or as a declarative representation. A devaluation technique was used to determine whether hens have declarative representations. Individual hens (Gallus gallus domesticus) were fed in an enclosure with two containers, each with a new food type. One of the food types was devalued by pre-feeding with that food, after which the hens were tested with empty food containers. The pre-feeding should only affect the choice of the hens if they have learned where a particular food type was (declarative representation) rather than “go left when coming into the enclosure” (procedural representation). A significant proportion of the hens went to the location previously occupied by the non-devalued food (seven out of eight). This supports the hypothesis that domestic hens can form declarative representations. | ||||
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| Notes | Approved | no | |||
| Call Number | Equine Behaviour @ team @ | Serial | 3143 | ||
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