Now showing items 1-14 of 14

    • Actuality and future of a breeding program in retinto beef cattle 

      Mayer Valor, M.; Molina Alcalá, Antonio; Burgos, A.; Serrano, I.; Salado de la Torre, F.; Jiménez, J.M.; Rodero Franganillo, Antonio (Universidad de Córdoba, Servicio de Publicaciones, 1992)
      We describe the present process of genetic improvement in Retinto cattle breed and the investigations supporting the selection program. The effects of different environmental factors have been analyzed. We have obtained ...
    • Análisis crítico del acceso a series de testaje del esquema de selección de la raza retinta 

      Molina Alcalá, Antonio; Jiménez, J.M.; Salado de la Torre, F.; Delgado, F.; Álvarez, F. (Universidad de Córdoba, Servicio de Publicaciones, 1995)
      This study aims to evaluate the incidence of various requirements that male animals had to meet for their participation in 1995 testing series developed by the National Selection Plan of Retinto Beef Cattle. In a stratified ...
    • Análisis de los factores que afectan a la curva de crecimiento del ganado vacuno retinto hasta el destete 

      Berlanga García, M.E.; Luque Moya, A.J.; Molina Alcalá, Antonio; Jiménez Fernández, J.M.; Delgado-Bermejo, J.V. (Universidad de Córdoba, Servicio de Publicaciones, 1995)
      A study was made of the growth of Retinto beef cattle through analysis of factors affecting the characteristic linear growth curve of this breed in its developmental environment. By addressing these factors, growth and ...
    • Análisis del flujo de sementales retintos 

      Valera Córdoba, M.; Molina Alcalá, Antonio; Rodero Franganillo, Antonio (Universidad de Córdoba, Servicio de Publicaciones, 1995)
      In Retinto Beef cattle breeding, a series of farms have stood out as leaders in animal production in the supply of sires to other farms. In this paper we have made an analysis of these outstanding farms in order to study ...
    • Análisis genético de los niveles de consanguinidad en la raza retinta 

      Molina Alcalá, Antonio; Valera Córdoba, M.; Rodero Franganillo, Antonio (Universidad de Córdoba, Servicio de Publicaciones, 1995)
      Within the improvement plan, inbreeding crosses may prove to be a tool that the Retinto cattle breeder might use along with selection to increase the genetic merits of his breed. The majority of breeders know the effects ...
    • Caracterización productiva de la raza vacuna Retinta 

      Mayer Valor, M.; Molina Alcalá, Antonio; Serrano, I.; Burgos, A.; Jiménez, J.M.; Salado de la Torre, F.; Rodero Franganillo, Antonio (Universidad de Córdoba, Servicio de Publicaciones, 1992)
      We have studied 1863 animals, including males, females and offsprings, from the Retinto breed of cattle, belonging to different farmers in the Cadiz province. The effect of birth type, offspring sex, month of the birth, ...
    • Estimación de la curva de crecimiento en vacuno retinto desde el nacimiento hasta el destete 

      Luque Moya, A.J.; Berlanga García, M.E.; Molina Alcalá, Antonio; Salado de la Torre, F.; Delgado-Bermejo, J.V. (Universidad de Córdoba, Servicio de Publicaciones, 1995)
      Several growth equations exist according to different approaches of authors that have studied this matter, but practically all coincide, on analyzing the growth up to mature age, that the curve acquires a sigmoid form; ...
    • Evolución de la incidencia de la translocación robertsoniana 1/29 en la raza vacuna retinta en los últimos seis años 

      Ocaña Quero, J.M.; Rodero Franganillo, Antonio; Moreno-Millán, M. (Universidad de Córdoba, Servicio de Publicaciones, 1995)
      Dés 1989 on étude chez le Laboratoire de Cytogénétique Animale Appliquée du Departement de Génétique de la Faculté de Veterinaire de l"Université de Cordoba (Espagne), la presence de la translocation robertsonienne 1/29 ...
    • Evolución de la metodología de la mejora genética en el vacuno de carne 

      Molina Alcalá, Antonio; Camacho Vallejo, M.E.; Rodero Franganillo, Antonio; Delgado-Bermejo, J.V. (Universidad de Córdoba, Servicio de Publicaciones, 1995)
      The evolution of the genetic improvement methodology in the beef cattle has been based, as in other species, in our capacity to detect the best genotypes for using as reproducers. In this paper are described three phases ...
    • Experiencias sobre inseminación artificial en hembras bovinas retintas tras tratamientos estimuladores de celo 

      Salado de la Torre, F.; Jiménez Fernández, J.M.; Pérez Gómez, J.M.; Molina Alcalá, Antonio (Universidad de Córdoba, Servicio de Publicaciones, 1995)
      We have realised artificial insemination oí 877 females of the Retinto cattle breed. Previously we applied three different treatments for estrus stimulation. The first and the second were induction treatments, with Syncro-Mate ...
    • Factores que afectan a la edad al primer parto en el ganado vacuno de raza retinta 

      Tapia Román, N.; Molina Alcalá, Antonio; Muñoz Vilches, P. (Universidad de Córdoba, Servicio de Publicaciones, 1995)
      It is posible to get an increase of reproductive efficiency by decreasing age at first calving. In this study we show the influence of some enviromental factors that affect this parameter in Retinto cattle. 1786 first ...
    • Inbreeding situation in a retinto beef cattle population 

      Mayer Valor, M.; Serrano, I.; Molina Alcalá, Antonio; Rodero Franganillo, Antonio (Universidad de Córdoba, Servicio de Publicaciones, 1994)
      In a sample of Retinto Beef Cattle under control of a breeding program in Andalusia, the average current inbreeding coefficient has been estimated. Ancestral information on 492 dams and 25 sires was analysed. The average ...
    • Paquetes informáticos en la mejora genética del vacuno de carne 

      Crespo Giráldez, M.C.; Molina Alcalá, Antonio; Rodero Franganillo, Antonio; Delgado-Bermejo, J.V. (Universidad de Córdoba, Servicio de Publicaciones, 1995)
      In the last decades, we have witnessed a growing calculation power of computers and a dramatic cheapening of these. This has permitted development of mathematical models for problem resolution in increasingly complex animal ...
    • Sobre el origen de la raza retinta 

      Peña Blanco, Francisco; Herrera García, M.; Rodero Serrano, E.; Gutiérrez Cabezas, M.J. (Universidad de Córdoba, Servicio de Publicaciones, 1995)
      There is enough coincidence in considering as an antecesor of the Retinta breed and in general of the red subconvex spanish bovine the african origin Bos primigenius, Hahni variety, considered alone or by means of its union ...