Musicoterapia na temperatura superficial e ocular de porcas alojadas em sistema convencional e cobre solta após a cobertura.

Abstract

The study was conducted with the objective of evaluating the effects of music therapy on the surface and eye temperature of pregnant and lactating sows housed in two types of systems after covering (conventional and copper and loose). 56 sows of commercial lineage were used, between the 2nd and 6th order of birth, submitted to the treatments of artificial insemination until the weaning of the piglets (21 days). The sows were distributed in a randomized block design in a 2x2 factorial scheme in the treatments: Copper and Loose - Music (CS-M), Conventional - Music (CV-M), Copper and Loose - Control (CS-C), Conventional - Control (CVC). The sows of the treatments with music therapy were exposed daily to six hours of classical music (Bach symphonies) in periods of two hours each. The superficial skin (TS) and ocular (TO) temperatures were assessed throughout the gestation period (once a week) and lactation (twice a week), using an infrared thermography camera (Caterpillar Cat cellular equipment S60). The images were always recorded at two different times, before and during music playback. The eye temperature of pregnant sows housed in a copper and loose system was lower than those housed in a conventional system, as well as for sows submitted to music therapy in relation to those that did not have access to the same sound stimulus (P<0,05). During the lactation phase, sows that underwent music therapy showed lower TS compared to the control groups. The eye temperature of lactating sows submitted to music therapy was lower (P <0.05) than those who did not have access to the sound stimulus during the gestation and lactation phases. Music therapy, as well as the copper and loose housing system, reduced the eye temperature of pregnant sows, indicating their potential to reduce stress, extending the beneficial effects of sound enrichment to the lactation phase.