In the farrowing stage, to use heated creeps is crucial for meeting the thermal requirements of newborn piglets and alternatives for environmental enrichment to attract the animals to the creeps. The objective of this study was to evaluate the behavior and productive performance of piglets submitted to creeps enriched with different types of sensory stimuli. The study had a completely randomized design. The animals were (which was not peer-reviewed) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity.The copyright holder for this preprint . http://dx.doi.org/10.1101/346023 doi: bioRxiv preprint first posted online Jun. 13, 2018; 2 every 15 min (on/off), from 8 am to 5:45 pm (21 consecutive days). The environmental conditions of the creeps -air temperature, relative humidity, luminous intensity, and decibels -were evaluated within the creeps with environmental enrichment to determine the influence on the piglets' behavior and productive performance. The results show that piglets submitted to creeps with environmental enrichment with blue artificial light and thyme essential oil showed reduced frequency outside the creeps when compared with treatment T6 (control). This showed the reduction of the stay of piglets in areas susceptible to crushing, in proximities to the mother. Piglets showed greater preference for creeps enriched with fragrance diffusion of thyme essential oil and with blue artificial lighting. 11
Resumo O objetivo foi avaliar o enriquecimento ambiental de escamoteadores para leitões lactentes, por meio de estímulos sensoriais olfativo (aromatizantes), auditivo (música) ou visual (iluminação led), a buscarem ambientes aquecidos, assim evitando o estresse térmico no qual gera prejuízos no ganho de peso dos leitões. Os estímulos sensoriais utilizados apresentaram eficácia com relação ao bem-estar animal. Os leitões apresentaram a maior frequência de acesso nos escamoteadores aquecidos e enriquecidos com com iluminação azul. Porém o ganho de peso leitões não foi significativo (p<0,05) entre os tratamentos. Conclui-se que os leitões reagem ao estímulo visual e preferem o ambiente iluminado com cor azul do que música e aromas.
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