Reactivity in behavioral test and impact in the stress indicators in swine / Reatividade em teste comportamental e impacto nos indicadores de estresse de suínos
áviaFláviaFláviaFláviaFlávia; Francisquine Delgado, Eduardo; Goretti Romano, Gislaine.
Bol. ind. anim. (Impr.);
71: 14-14, 2014.
Artigo
em Inglês
|
LILACS-Express
| ID: biblio-1466649
Resumo
The swine is constantly exposed to potential numerous stressors related to physiological changes that impact on the muscles during production, transport and slaughter. Studies have demonstrated the relationship between behavioral and physiological measures of stress in swine at slaughter and subsequent effects on meat quality. One way to study this relationship is through behavioral tests. The test Y maze is used especially to determine the relationship of aversion front the different procedures for handling. The objective of this study was to test the effectiveness of Y-maze to detect behavioral differences that allow categorizing crossbred pigs in groups of high and low reactivity, and the relationship between physiological parameters and muscle. Two experimental trials were conducted. In the first trial, 40 females were used to test the sound stimuli in the maze, categorized as "aversive" or "not aversive." The experiment considered the variables as significant to categorization in groups of reactivity: number of times the animal enters into each arm (NEA); time of main arm (TMA); time in initial main arm (TIMA) and total time of stay in each arm (TTSA). There was no effect of type sound stimulus for reactivity categorization (P>0.05). In the second trial forty eight animals (24 females and 24 males) were identified as animals with high (HR) or low reactivity (LR) and sO artigo não apresenta resumo em português.
Biblioteca responsável:
BR68.1
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