Are Behavioral Tests Capable of Measuring Positive Affective States in Growing Pigs?
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Are Behavioral Tests Capable of Measuring Positive Affective States in Growing Pigs? / Krugmann, Katja; Warnken, Farina; Krieter, Joachim; Czycholl, Irena.
I: Animals, Bind 9, Nr. 5, 274, 05.2019.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Are Behavioral Tests Capable of Measuring Positive Affective States in Growing Pigs?
AU - Krugmann, Katja
AU - Warnken, Farina
AU - Krieter, Joachim
AU - Czycholl, Irena
PY - 2019/5
Y1 - 2019/5
N2 - This study examined whether the human approach test (HAT) or novel object test (NOT), which are considered as suitable tests for assessing the level of fear or anxiety in animals, are suitable to detect a positive affective state in 297 fattening pigs from three different farms. The investigated farms consisted of a barren (farm 1, n = 160) and an enriched (farm 2, n = 106; farm 3, n = 31) husbandry. Each pig was subjected three times to the HAT and NOT during fattening (at the start, middle, and end of fattening). The pigs housed in the barren environment showed quicker approach latencies than the enriched-housed pigs (HAT: farm 1: 7.4 +/- 1.1 s vs. farm 2: 57.1 +/- 1.1 s, respectively, farm 3: 58.3 +/- 1.3 s (end of fattening); NOT: farm 1: 4.5 +/- 1.1 s vs. farm 2: 23.0 +/- 1.1 s, respectively, farm 3: 9.0 +/- 1.2 s (end of fattening)). The same pattern of behavior was observed for the duration of contacts in the HAT but not in the NOT (HAT: farm 1: 83.8 +/- 1.1 s vs. farm 2: 6.3 +/- 1.1 s, respectively, farm 3: 7.6 +/- 1.3 s (end of fattening)). However, due to controversially discussed literature, it is difficult to conclude whether the described differences in the pigs' behavior between the two housing systems might indicate useful indicators to detect their affective state.
AB - This study examined whether the human approach test (HAT) or novel object test (NOT), which are considered as suitable tests for assessing the level of fear or anxiety in animals, are suitable to detect a positive affective state in 297 fattening pigs from three different farms. The investigated farms consisted of a barren (farm 1, n = 160) and an enriched (farm 2, n = 106; farm 3, n = 31) husbandry. Each pig was subjected three times to the HAT and NOT during fattening (at the start, middle, and end of fattening). The pigs housed in the barren environment showed quicker approach latencies than the enriched-housed pigs (HAT: farm 1: 7.4 +/- 1.1 s vs. farm 2: 57.1 +/- 1.1 s, respectively, farm 3: 58.3 +/- 1.3 s (end of fattening); NOT: farm 1: 4.5 +/- 1.1 s vs. farm 2: 23.0 +/- 1.1 s, respectively, farm 3: 9.0 +/- 1.2 s (end of fattening)). The same pattern of behavior was observed for the duration of contacts in the HAT but not in the NOT (HAT: farm 1: 83.8 +/- 1.1 s vs. farm 2: 6.3 +/- 1.1 s, respectively, farm 3: 7.6 +/- 1.3 s (end of fattening)). However, due to controversially discussed literature, it is difficult to conclude whether the described differences in the pigs' behavior between the two housing systems might indicate useful indicators to detect their affective state.
KW - animal welfare
KW - human approach test
KW - novel object test
KW - positive emotions
KW - pigs
KW - SOCIAL BREEDING VALUES
KW - ENVIRONMENTAL ENRICHMENT
KW - ANIMAL BEHAVIOR
KW - OBJECT
KW - WELFARE
KW - FEAR
KW - RESPONSES
KW - BACKTEST
KW - PIGLETS
KW - CATTLE
U2 - 10.3390/ani9050274
DO - 10.3390/ani9050274
M3 - Journal article
VL - 9
JO - Animals
JF - Animals
SN - 2076-2615
IS - 5
M1 - 274
ER -
ID: 328016774