GENETIC AND PHENOTYPIC PROFILES OF ENDANGERED ANDALUSIAN SHEEP AND GOAT BREEDS

SUMMARYThe Grazalema Merino and Lebrija Churro Sheep and the Andalusian White and Andalusian Black goat breeds, previously chosen as priority breeds in need of conservation, were considered as having priority for this study. In order to define the genetic as well as the phenotypic profiles the following characters were used: head profile, ear size, ear orientation, ear consistency, horns, pigmentation of mucous, hoofs, udder, ñneness of fur, hair or wool, length of hair or wool, presence of wattles and goatee bear, supernumerary nipples., udder shape, orientation and pigmentation of nipple, and peculiarities of coat. The allelic frequencies for each system were calculated to obtain the genetic profiles of each breed. In the two goat breeds and in the Grazalema Merino breed, the majority of the loci were genetically in Hardy-Weinberg equilibrium, but this was not true of the Lebrijan Churro breed which seems to indicate that the latter was either subjected to natural or artificial selection for these genes or crosses with outside breeds had taken place. The profiles of the breeds were compared with foreign breeds considered traditional or unmodified by man. The profile of the Andalusian White has already been studied by Rodero and they reached the conclusion that this breed can be considered traditional, completing the studies made on other breeds from the Mediterranean area. The data on the Andalusian Black seems to indicate that this breed might be considered traditional or subtraditional with strong polymorphism in most of its characters. Although less markedly than in the latter breed, the same is true of the Lebrijan Churro. In this breed the deñning characters of Archaism fit well within those common to an archaic breed. The Grazalema Merino is more standardised than the above mentioned not as ñxed than the precocious ones.