Abstract
Genetic and environmental effects on the quality of meat from southern European pig breeds are discussed. In the literature, it is evident that the breeds native to southern Europe have an interesting quality of products with respect to improved pigs. The free-range system increases the value of animal products due to the influence of outdoor rearing on the chemical, physical and organoleptic characteristics of the product. Traditional food products of high quality, such as those obtained from animals reared outdoor, are in high demand. The studies carried out on native pig breeds in southern Europe have focused on various aspects, ranging from studies of population genetics aimed at averting the danger of extinction and reducing inbreeding to studies of the factors affecting the quality of products. The purpose of this review is to analyse the literature on pig breeds native to southern Europe, with particular reference to the effects of genetics and breeding systems on the quality of products.
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