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Título del libro: Nutrient Delivery
Título del capítulo: Supplementing selenium and zinc nanoparticles in ruminants for improving their bioavailability meat

Autores UNAM:
JACINTO EFREN RAMIREZ BRIBIESCA; ATMIR ROMERO PEREZ;
Autores externos:

Idioma:

Año de publicación:
2016
Palabras clave:

meat; nanoparticles; ruminants; selenium; zinc


Resumen:

Selenium (Se) and zinc (Zn) are microelements that are required in various vital functions of the organism. Rumen microorganisms transform dietary Se and Zn into insoluble forms of lower bioavailability. There is a growing interest in the development of novel and innovative controlled release vehicles to dose microminerals into the rumen. For instance, Se and Zn nanoparticles elaborated with polymers that prevent their degradation in the rumen can be administered to animals using bolus or pellets. This technology improves bioavailability and absorption of these minerals in the small intestine and enhances the organic mineral concentration in the meat. Human requirements for Se and Zn are 55?400 µg/day and 8?15 mg/day, respectively. Typically, Se and Zn concentrations in wet tissue of steers range between 0.42?1.30 µg g?1 and 2.14 mg per 100 g Zn, respectively. Supplementing beef cattle with Zn and Se nanoparticles is a strategy that can improve the nutritional quality of meat. © 2017 Elsevier Inc. All rights reserved.


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