Carcasse performance in goats managed in open fields in southern Ecuador
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Abstract
More than 70% of Ecuador’s goat population is found in the south of the country, where they are managed in open fields, with little technological application and support. The objective was to determine the performance of these animals at hot and cold carcasses and the degree of runoff. A total of 457 goats of different ages, genetic groups, and biotypes, slaughtered at the Municipal Slaughter Center of Zapotillo, were included in the study. Information on ante-mortem weights, and hot and cold carcasses was collected, and factors such as sex, age, breed group, and biotype were included in the analysis using an ANOVA with a randomized linear model. The results show a hot and cold carcass yield of 41.8± 2.6% and 41.1± 2.7% respectively, with no statistical difference in the factors analyzed. It is highlighted that carcass yield decreases minimally with increasing age; males present a slightly higher carcass yield (41.9%) compared to females (41.7%); regarding the breed, there were also slight differences with Chuscos Criollos, Mestizos and Anglo Nubian, presenting 41.8%, 42.1% and 41% of the hot carcass yield respectively; analyzing the biotype, presence and absence of horns, the yield was 41.8% and 41.9 % respectively. It is important to note that there was a minimal level of runoff in this population (1.23%). We conclude that these goats have a low carcass yield compared to other populations, possibly due to the type of management and feeding, where water scarcity predominates. It is worth noting the slight superiority of the Mestizo breed, which could be a good option for improving these variables.
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