Resumen

PARIACOTE¹, Fidel. A; RUIZ¹, Leyberth  y  PIMENTEL², Xiomara. Cutaneous appendixes in the venezuelan creole goat population. Zootecnia Trop. [online]. 2004, vol.22, n.2, pp.201-208. ISSN 0798-7269.

The cutaneous appendixes are visible characteristics of genetic origin that are most useful in animal husbandry. The frequency of wattled, horned, curled and bearded individuals was evaluated in the base population of a project on conservation and improvement of the Creole goat. The nuclei of the project are localized in regions geographically distantly and genetically less related to each other than the average and conformed by adult females randomly selected in a frequency of 80 heads per herd. Flocks are of the most typical and representative of each region.. The selected animals were characterized and coded with 1 and 0 for the presence or absence of wattles, horns, curl and beard, respectively. Records were also classified by region: Paraguaná, Pedregal, and Carora, Venezuela; direct fraction of genes coming from the Creole, Alpine, Nubian, Canaria, and other breeds; and buck sires (n=13). A buck’s directory was created as far ago as it was possible, and from there groups of half sib progeny. An univariate analysis of the variance for the presence or absence of wattles, horns, curl and beard was done using the Proc. Mixed of SAS. The statistical model included region and buck sire as random effects, and the covariables fraction of genes of the different breeds as fixed effects. The raw frequency of horned individuals seems to correspond with results from European native goats, but the frequency of wattled and bearded individuals observed in this study seems to be higher and lower, respectively, regarding European native goats. A statistically significant difference at least between two regions was observed for all variables. The variance associated with buck sire was superior to the regions’ variance. More studies are needed to determine the source of the differences.

Palabras clave : goat; Creole; cutaneous appendixes.