Listar por autor UPNA "Alfonso Ruiz, Leopoldo"
Mostrando ítems 1-19 de 19
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Adipose tissue modification through feeding strategies and their implication on adipogenesis and adipose tissue metabolism in ruminants
Dietary recommendations by health authorities have been advising of the importance of diminishing saturated fatty acids (SFA) consumption and replacing them by polyunsaturated fatty acids (PUFA), particularly omega-3. ... -
Adiposity and adipogenic gene expression in four different muscles in beef cattle
Anatomical site and divergent functionalities of muscles can be related to differences in IMF content, metabolism and adipogenic gene expression. Then, potential differences in different muscles in beef cattle were ... -
Análisis de la relación entre el espesor de la grasa dorsal y el tamaño de los adipocitos en cerdas reproductoras
La correcta gestión de las reservas grasas durante el ciclo productivo de las cerdas reproductoras es un factor clave para la obtención de unos buenos resultados productivos. El principal depósito graso en las cerdas lo ... -
Ayuda a las decisiones de apareamiento en poblaciones animales con información genealógica incompleta
Los coeficientes de parentesco y de relación media de parentesco son dos herramientas útiles para determinar apareamientos con el objetivo de controlar, de forma práctica, el aumento de la consanguinidad en poblaciones ... -
Caracterización de la distribución del tamaño de los adipocitos para el estudio del tejido adiposo en producción animal
El tamaño de los adipocitos, principales células constituyentes del tejido adiposo, ha sido objeto de numerosos estudios por el hecho de estar relacionado con el grado de desarrollo y la actividad metabólica de ese tejido. ... -
Comparative description of growth, fat deposition, carcass and meat quality characteristics of Basque and Large White pigs
Characteristics of growth, fat deposition, carcass and meat quality of pigs from the Basque Black Pied breed were described and compared with those of Large White pigs. Four pens, two per breed, of eleven pigs born during ... -
Conversión de las explotaciones de vacuno de leche a la producción de leche A2 ante una posible demanda del mercado: posibilidades e implicaciones
El mercado de la leche de vaca, tras la desaparición de las cuotas lácteas, está provocando una importante restructuración en el sector. Una de las alternativas que están desarrollando, fundamentalmente las pequeñas ... -
Development of a duplex qPCR assay with locked nucleic acid probes for A, B and E kappa-casein variants detection
Milk proteins determine important milk technological characteristics. Among caseins, Ƙ-casein has been correlated with fat and protein content and cheese yield. Fourteen Ƙ-caseins variants have been described but the alleles ... -
DNA extraction procedures and validation parameters of a real-time PCR method to control milk containing only A2 β-casein
Bovine milk mainly contains two types of β-casein: A1 and A2 variants. In recent years, a new variety of cows’ milk has emerged in the dairy sector called “A2 milk”. This novel product is characterised by the absence of ... -
The effects of selective breeding against scrapie susceptibility on the genetic variability of the latxa black-faced sheep breed
Breeding sheep populations for scrapie resistance could result in a loss of genetic variability. In this study, the effect on genetic variability of selection for increasing the ARR allele frequency was estimated in the ... -
Expression of key myogenic, fibrogenic and adipogenic genes in Longissimus thoracis and masseter muscles in cattle
Adipogenesis, myogenesis and fibrogenesis are related processes that can contribute to meat quality. Therefore, extending the knowledge of these processes would facilitate the identification of molecular markers that predict ... -
An expression of mixed animal model equations to account for different means and variances in the base population
This paper presents a general expression to predict breeding values using animal models when the base population is selected, i.e. the means and variances of breeding values in the base generation differ among individuals. ... -
Impact of incorporating greenhouse gas emission intensities in selection indexes for sow productivity traits
Genetic improvement programmes should incorporate emerging challenges about environmental concerns into breeding goals. The large volume of pig meat production implies important greenhouse gas (GHG) emissions despite its ... -
Mipob: un programa de simulación para el aprendizaje en mejora genética animal
Se ha desarrollado un programa de simulación de apoyo a la docencia de los cursos introductorios a la Mejora genética animal. El programa surgió ante la ausencia de este tipo de herramientas docentes orientadas a estudiantes ... -
Molecular traceability of beef from synthetic Mexican bovine breeds
Traceability ensures a link between carcass, quarters or cuts of beef and the individual animal or the group of animals from which they are derived. Meat traceability is an essential tool for successful identification and ... -
Quality characteristics of Huacaya alpaca fibre produced in the Peruvian Andean Plateau region of Huancavelica
(Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 2008) Artículo / ArtikuluaSe describe la calidad de la fibra de alpacas Huacaya producida en la región de Huancavelica (Perú), utilizando una muestra de 203 alpacas pertenecientes a ocho comunidades de alpaqueros ubicadas entre 4.100 y 4.750 m de ... -
Textile characteristics of fiber from Huacaya alpacas (Vicugna pacos)
(Universidad Nacional de Trujillo (Perú). Facultad de Ciencias Agropecuarias, 2019) Artículo / ArtikuluaFiber from alpacas represents a substantial component of economic output for South American countries. In this study it determined the textile characteristics of fibers obtained from Huacaya alpacas raised at the South ... -
Use of meta-analysis to combine candidate gene association studies: application to study the relationship between the ESR PvuII polymorphism and sow litter size
This article investigates the application of meta-analysis on livestock candidate gene effects. The PvuII polymorphism of the ESR gene is used as an example. The association among ESR PvuII alleles with the number of piglets ... -
Worldwide research trends on milk containing only A2 β-casein: a bibliometric study
The protein fraction of β-casein may play a key role in the manifestation of a new intolerance: milk protein intolerance. The most common forms of β-casein among dairy cattle breeds are A1 and A2 β-casein. During ...