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DIGITAL.CSIC
Article . 2018 . Peer-reviewed
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Herencia del número de mamas en una piara cerrada consanguínea de ganado porcino

Authors: Solano Uriarte, Alfonso;

Herencia del número de mamas en una piara cerrada consanguínea de ganado porcino

Abstract

[ES] En las 2.615 camadas obtenidas durante 50 años de desarrollo de una piara cerrada de ganado porcino se ha computado el número de mamas de los progenitores. paterno (NP), materno (NM) y de cada uno de los 20.940 lechones (NC). La distribución de NC para cada número promedio de mamas de los progenitores (NPM) es leptocúrtica, con presentación sesgada hacia números pares. La paridad de NP y NM no influye significativamente en la paridad de NC. El valor modal de NC es 14. Los coeficientes de regresión simple de NC sobre NPM toman los valores significativos de 0.57, 0.47 y 0.38 para los grupos de camadas (A. B y C) con consanguinidad media de 12.5%, 28.2% y 60.9%. Las ordenadas en origen son 5.51, 7.08 y 8.73 respectivamente. Los coeficientes de regresión parcial de NC sobre NP y NM son: 0.21 y 0.32; 0.20 y 026; 0,16 y 0.39 para los grupos A. B y C, y los de correlación múltiple 0.97, 0.96 y 0.93. Se aprecian efectos maternos sobre NC y no se observan efectos de depresión consanguínea en el mismo carácter.

[EN] The number of teats of the parents (NP=male, NM=female) and of each of 20.940 piglets (NC) have been computed in 2.615 litters obtained along 50 years in a closed herd of swine. The distribution of NC for parent teat average (NPM) is leptocurtic with a bias tendency toward even numbers. This tendency for NP and NM does not affect the tendency of NC. The mode of the latter was 14. The Simple regression coefficients of NC on NPM were significant with values of 0.57, 0.47 and 0.38 for the litter groups with inbreeding means of 12.5%(group A), 8.2% (group B), and 60.9% (group C), respectively. The Y—interceps were 5.51, 7.08 and 8.73 respectively. The partial regression coefficients of NC on NP and NM were 0.21 and 0.32 for group A, 0.20 and 0.26 for group B, and 0.16 and 0.39 for group C. The multiple correlation coefficients were, for the same three groups, 0.97, 0.96 and 0.93 respectively. Maternal effects on NC are noted, while there is no inbreeding depression for the same trait.

10 páginas y 5 tablas.

Peer reviewed

Country
Spain
Related Organizations
Keywords

Número de mamas, Ganado porcino, Caracteres hereditarios, Poblaciones cerradas

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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