Publication: Influencia de factores nutricionales sobre la expresión génica y la composición tisular en cerdo ibérico
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2020-03-31
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Universidad Complutense de Madrid
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Abstract
El cerdo ibérico se caracteriza por un crecimiento poco eficiente, un escaso desarrollo muscular y una gran capacidad de acumulación de grasa, además de una gran adaptación al medio y rusticidad. Al igual que otras razas autóctonas tradicionales, su rendimiento es menor al de las razas seleccionadas, lo que suele ir asociado a una menor rentabilidad. Su producción es un claro ejemplo de sistema productivo sostenible orientado a la obtención de productos cárnicos de alta calidad, en el que, además de los aspectos genéticos, los aspectos ambientales y de manejo (especialmente los nutricionales) tienen una influencia decisiva en la composición tisular y en la calidad de los productos. Debido a su bajo rendimiento productivo y con el objetivo de mejorarlo se ha cruzado de forma habitual con la raza duroc, siendo la mayoría de la producción del sector del ibérico correspondiente a cebo intensivo y cruce con duroc. Aunque numéricamente su producción sea menor, la producción de animales 100% ibéricos y de bellota es más relevante,por su excelente calidad y su gran valor económico...
The Iberian pig is characterized by low growth efficiency, poor muscle development and a high capacity for fat accumulation, as well as a good adaptation to the environment and rusticity. As other traditional autochthonous breeds, its productive yield is lower than in selected breeds, which is usually associated with low profitability. The Iberian pig production is a clear example of a sustainable production system aimed at obtaining high quality meat products, in which, in addition to genetic aspects, environmental and management aspects (especially nutritional ones) have a decisive influence on tissue composition and products’quality. Due to its low productive yield and with the aim of improving it, the Iberian pig has been usually crossed with the Duroc breed, with the majority of the production of the Iberian sector corresponding to intensive fattening and Duroc crossbreeding. Although numerically lower, the production of purebred Iberian and acorn-fed animals is more relevant, due to its excellent quality and great economic value...
The Iberian pig is characterized by low growth efficiency, poor muscle development and a high capacity for fat accumulation, as well as a good adaptation to the environment and rusticity. As other traditional autochthonous breeds, its productive yield is lower than in selected breeds, which is usually associated with low profitability. The Iberian pig production is a clear example of a sustainable production system aimed at obtaining high quality meat products, in which, in addition to genetic aspects, environmental and management aspects (especially nutritional ones) have a decisive influence on tissue composition and products’quality. Due to its low productive yield and with the aim of improving it, the Iberian pig has been usually crossed with the Duroc breed, with the majority of the production of the Iberian sector corresponding to intensive fattening and Duroc crossbreeding. Although numerically lower, the production of purebred Iberian and acorn-fed animals is more relevant, due to its excellent quality and great economic value...
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Tesis inédita de la Universidad Complutense de Madrid, Facultad de Veterinaria, leída el 21-11-2019