A carregar...
Publicação
Estudo do impacto de diferentes andamentos da música clássica no comportamento de vitelas
| Nome: | Descrição: | Tamanho: | Formato: | |
|---|---|---|---|---|
| 2.45 MB | Adobe PDF |
Orientador(es)
Resumo(s)
A etologia das espécies animais poderá ser modificada através do enriquecimento ambiental auditivo proveniente dos potenciais benefícios da música. Este estudo avaliou o impacto que os andamentos da música clássica têm na ingestão de leite e concentrado, e no comportamento de 12 vitelas através de indicadores comportamentais de brincadeira e de stress. As 12 vitelas foram expostas e observadas com diferentes estímulos, em 3 horas/dia durante 3 semanas consecutivas – primeiro sem música, semana de controlo (SC); segunda semana com música lenta (SML) e terceira semana com música rápida (SMR).
Especulou-se que a presença musical poderá ter potencializado o disfarce de sons agressivos. Na SC houve, face à SML e SMR, maior atividade do grupo (45% do tempo ativo), menor média diária de animais deitados (6,60 vitelas), maior quantidade de comportamentos de isolamento e desvio de ocasional fonte sonora.
A música de andamentos rápidos (120-210 bpm), com pulsação superior ao ritmo cardíaco normal dos vitelos (120 bpm), poderá ter mostrado benefícios no comportamento alimentar. No entanto, revelou a presença de comportamentos anómalos e menos comportamentos de brincadeira motora (-38,51% vs SC e -5,31% vs SML) e social (+2,13% vs SC e -21,31% vs SML) com maior média de eventos diários (107 eventos/dia).
A SML (60-108 bpm) poderá ter trazido benefícios ao nível da brincadeira social, do relaxamento e da diminuição de comportamentos anómalos. Houve maior inatividade do grupo (34% do tempo ativo), maior média de vitelas deitadas (7,88 vitelas), diferenças na posição de deitar, menor média de eventos diários (84 eventos/dia) e menor quantidade de visitas aos alimentadores e manjedouras (-41,56% vs SC e -47,32% vs SMR). Especulou-se ainda que existe correlação forte (0,866) e moderada (0,635) entre as variáveis do comportamento alimentar com a variável do impacto musical. Presumiu-se que a música poderá influenciar o comportamento das vitelas, tanto a nível da atividade como a nível alimentar.
Ethology of animal species can be modified through auditive environmental enrichment derived from the potential benefits of music. This study evaluated the impact of different tempos of classical music on consumption of milk and concentrate and on the behaviour of 12 female calves, using behavioural indicators of play and stress. These calves were submitted to different auditive stimuli for 3 hours/day on 3 consecutive weeks: first without music, control week (SC); second week with slow music (SML) and third week with fast music (SMR). It was speculated that the musical presence may have potentiated the masking of aggressive sounds. Compared with SML and SMR, SC group showed a higher activity level within the group (45% of active time); lower daily average of lying down animals (6,60 calves); and higher occurrence of isolation behaviours and deviations from occasional sound sources. Music with fast tempo (120-210 bpm), with a pulse higher than normal heart rate (120 bpm), may have shown benefits on alimentary behaviour. However, it revealed more abnormal behaviours and fewer motor play (-38.51% vs. SC and -5,31% vs. SML) and social play (+2,13% vs. SC and -21,31% vs. SML) with a higher daily average of events (107 events/day). The SML (60-108 bpm) may have shown benefits in play behaviour, relaxation and in the reduction of abnormal behaviours. The SML week showed a higher group inactivity (34% of active time); a higher average of calves lying down (7,88 calves); differences in lying position; a lower daily average of events (84 events/day); and fewer visits to the milk feeder and mangers (-41,56% vs. SC and -47,32% vs. SMR). It was also speculated that there was a strong correlation (0,866) and a moderate correlation (0,635) between the variables of alimentary behaviour and musical impact. It was presumed that music can influence the behaviour of calves, both in terms of activity and feeding.
Ethology of animal species can be modified through auditive environmental enrichment derived from the potential benefits of music. This study evaluated the impact of different tempos of classical music on consumption of milk and concentrate and on the behaviour of 12 female calves, using behavioural indicators of play and stress. These calves were submitted to different auditive stimuli for 3 hours/day on 3 consecutive weeks: first without music, control week (SC); second week with slow music (SML) and third week with fast music (SMR). It was speculated that the musical presence may have potentiated the masking of aggressive sounds. Compared with SML and SMR, SC group showed a higher activity level within the group (45% of active time); lower daily average of lying down animals (6,60 calves); and higher occurrence of isolation behaviours and deviations from occasional sound sources. Music with fast tempo (120-210 bpm), with a pulse higher than normal heart rate (120 bpm), may have shown benefits on alimentary behaviour. However, it revealed more abnormal behaviours and fewer motor play (-38.51% vs. SC and -5,31% vs. SML) and social play (+2,13% vs. SC and -21,31% vs. SML) with a higher daily average of events (107 events/day). The SML (60-108 bpm) may have shown benefits in play behaviour, relaxation and in the reduction of abnormal behaviours. The SML week showed a higher group inactivity (34% of active time); a higher average of calves lying down (7,88 calves); differences in lying position; a lower daily average of events (84 events/day); and fewer visits to the milk feeder and mangers (-41,56% vs. SC and -47,32% vs. SMR). It was also speculated that there was a strong correlation (0,866) and a moderate correlation (0,635) between the variables of alimentary behaviour and musical impact. It was presumed that music can influence the behaviour of calves, both in terms of activity and feeding.
Descrição
Mestrado em Engenharia Zootécnica - Produção Animal / Instituto Superior de Agronomia, Faculdade de Medicina Veterinária, Universidade de Lisboa
Palavras-chave
enriquecimento ambiental andamento bovinos etograma comportamento environmental enrichment musical tempo dairy calves ethogram behaviour
Contexto Educativo
Citação
Aragão, M.S.L.D.O. Estudo do impacto de diferentes andamentos da música clássica no comportamento de vitelas. Lisboa: ISA, 2024, 109 p. Dissertação de Mestrado
Editora
Instituto Superior de Agronomia, Universidade de Lisboa