Banca de DEFESA: ANNA CAROLINA NOGUEIRA BORZANI

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : ANNA CAROLINA NOGUEIRA BORZANI
DATE: 08/09/2020
TIME: 09:00
LOCAL: Videoconferência
TITLE:
KEY WORDS:
PAGES: 75
BIG AREA: Ciências Humanas
AREA: Psicologia
SUMMARY:

Stable differences in behavioral patterns, also called personality, have been studied in farm animals, particularly to improve their welfare and production. In horses, studies show that personality is linked to performance, risk of accidents, and animals’ health. The most common traits in horse personality are: reactivity, gregariousness, reactivity to humans, sensory sensitivity and locomotor activity. However, methodologies for studying personality in horses vary, with few studies testing for consistency in personality structure. Our objective was to test whether different methods (questionnaire, test and behavioral observation) present congruent results when assessing a horse's personality. This study included 40 animals housed in two riding schools, one in Natal / RN and another in João Pessoa / PB. We used a personality questionnaire with 24 adjectives, which was answered by at least two people. In addition, the animals participated in six personality tests, which were repeated after one month, being: reactivity (three tests), neophobia, gregariousness and reactivity with humans. Finally, we performed 60 min of behavioral observation of the animals in the stall. To verify the temporal consistency and among the respondents, we used analysis of interclass correlation tests. With the relevant variables, we performed principal component analyzes to define the dimensions found by each method. As a way to check the consistency between methods, we performed the Person test with the values of Z-scores of the individuals in each factor found. Of the adjectives in the questionnaire, only nine were considered valid and grouped into two characteristics: sociability and openness. Seventeen out of 34 variables from tests showed e temporal consistency test and were grouped into six traits: fear, locomotor activity, sociability towards human beings, neophobia, aggressiveness towards human beings and food. The behavioral observation variables comprised six stereotyped behavior groups: locomotor, related to food, social eating, threatening, restlessness and scratching. Six correlations were found between all traits that suggests the existence of only one personality axis: proactive-reactive or bold-shy. Locomotor behavior in the tests, openness to new experiences in the questionnaire and threatening behavior in the stall was considered a proactive behavioral syndrome. Reactivity in the tests had a negative correlation with neophobia and a positive correlation with food stereotypes and scratching, indicating more reactive animals. Altogether, we found more correlations between tests and behavior than between these and the questionnaire, suggesting that different methods may not be measuring the same personality traits. The use of diverse methods in conjunct reveal that individual differences in horse can be resumed in one single proactive-reactive axis.

BANKING MEMBERS:
Externa à Instituição - ALINE CRISTINA SANTANNA - UFJF
Interna - 1350337 - FIVIA DE ARAUJO LOPES
Presidente - 2696495 - RENATA GONCALVES FERREIRA