Influencia del manejo de la alimentación y del sexo sobre la calidad de la canal del Cavia porcellus

Abstract

It was evaluated the influence of feeding management and sex on the quality of the guinea pig carcass. In the first experiment, 60 guinea pigs were used, separated by sex females and males. Those animals were grouped by diet; first group was fed with lucerne plus balanced feed (ASI), second group with agricultural waste (DNO) and the last group with agricultural waste plus balanced feed (DSI). In the second experiment, 40 guinea pigs were used, which fed with agricultural wastes and raised together (females and 5 males) and separation (10 females and 10 males). They were taken or calculated: 23 morphological measurements, weight and carcass performance, the non carcass components, 10 measurements of the carcass, the quartering of se carcass an finality it was registered the color and pH, at 15 min, 45 min, 24 hours postmortem. The main results were: the animals fed with waste plus balanced feed reached similar weights in comparison with control treatment (alfalfa plus balanced feed). Meat pH and color parameters were not affected by sex management or the food. However, pH was affected by the postmortem time from 45 min to 24 hours. pH is reduced un test muscles. Also, meat color evidenced an effect of postmortem time between 45 min and 24 hours, the color of guinea pig meat becomes less yellow and more red and light. In conclusion, the guinea pigs fed with agricultural wastes plus balanced feed do not show effects on carcass quality