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espanolEn la provincia de Chimborazo se analizaron las correlaciones entre valores geneticos de Produccion, Tipo y Reproduccion en toros de la raza Jersey, mediante el uso de una base de datos correspondiente a dichos toros disponible en EEUU y comercializados en Ecuador. Se seleccionaron 25 toros. Los datos fueron analizados mediante estadistica descriptiva y a su vez se realizo un analisis de correlacion lineal por el metodo de Pearson, utilizando el software SPSS version Statistic 19. Para la correlacion entre parametros productivos y reproductivos, el 65% de las caracteristicas no se correlacionan, es decir, son independientes; mientras que el parametro tasa de prenez de las hijas (DPR) se correlaciona con la vida productiva (PL) y habitabilidad (LIV). Ademas, la tasa de concepcion de las hijas (HCR) se correlaciona con la habilidad predicha de trasmision de proteina (PTAP) y la tasa de concepcion de la vaca (CCR) con la LIV. Con respecto a las correlaciones entre parametros productivos y de tipo, se indica que el 88% de las caracteristicas son independientes; mientras que hay correlacion directa entre el temperamento lechero (DF) con la PTAP y la habilidad predicha de trasmision de grasa (PTAF). Para la correlacion entre parametros reproductivos y de tipo, el 72% de las caracteristicas son independientes, mientras que los que progresan de manera directa son: PTAT con la tasa de concepcion del toro (SCR) y el indice ubre Jersey (JUI) con SCR, por lo que se recomienda a los productores, seleccionar los sementales tomando en consideracion las caracteristicas que se correlacionan, ya que influyen en el desarrollo del Hato. EnglishIn Chimborazo´s province study of correlations between genetic values Production-, type,and Reproduction of Jersey sires were analysed, using the database of bulls available in the US, marketed in Ecuador; 25 bulls were selected; the data were processed by descriptive statistics, and linear correlation analysis was performed by the Pearson method using SPSS Statistic version 19. In the correlation between productive and reproductive parameters, this indicated that 65% of the characteristics are not correlated, so, they are independent. That progress directly (correlated) are: daughters’ pregnancy rate (DPR) with productive life (PL) and habitability (LIV). In addition the daughter’s conception rate (HCR) was correlated with predicted ability to transmit protein (PTAP) and cow’s conception rate (CRC) with LIV. In reference to the correlations between productive and type parameters, it was observed that 88% of the characteristics were independent. Dairy temperament (DF) was correlated with PTAP and predicted ability of fat transmission (PTAF). For the correlation between reproductive and type parameters, 72% of the characteristics are independent. PTAT was directly correlated with cup of conception of the bull (SCR) same as index udder Jersey (JUI) with SCR. For this reason, the producers should select the studs looking for the characteristics that are are correlated, because this influence the development of livestock.

Estudio de las correlaciones entre valores genéticos de producción – reproducción y tipo de los toros Jersey en Ecuador