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Archivos de Zootecnia

versión impresa ISSN 0004-0592

Resumen

SANZ, A. et al. Undertaken activities to recover and preserve the Churra Tensina sheep breed. Arch. zootec. [online]. 2011, vol.60, n.231, pp.381-384. ISSN 0004-0592.  http://dx.doi.org/10.4321/S0004-05922011000300016.

This work aims to present the research activities in the Churra Tensina sheep breed, raised on the mountain area of Huesca Pyrenees. The population structure was prospected and the farming system was characterized through surveys to farmers. The animal morphology was studied through zoometric measurements and phaneroptic characters assessment of the individuals belonging to the breeders' Association (ATURA), showing a mediolineous, dolicocephalous and eumetric breed. The productive and reproductive parameters were analysed, and the commercial value of the suckling, light and heavy lamb categories was confirmed. The genetic studies showed that Churra Tensina is an homogeneous breed, with high genetic variability and low inbreeding. This breed was self-genetic differentiated, and has no crossbreeding with other Churro group populations. Finally, semen and embryos banks were established, being the different Scrapie resistance genotypes represented. The increasing census evolution in the past 10 years and the observed commercial viability assure the long term maintenance of this breed in their original location.

Palabras clave : Endangered breeds; Sheep; Churro; Germplasm; Genetics.

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