ESTIMATION OF GENETIC PARAMETERS FROM DIALELIC CROSSBREEDING WITH THREE BREEDS USING STATISTICAL SOFTWARE

ESTIMATION OF GENETIC PARAMETERS FROM DIALELIC CROSSBREEDING WITH THREE BREEDS USING STATISTICAL SOFTWARE

The objective of this work was to develop a SAS® routine to facilitate the estimation of dialelic crossbreeding parameters with three breeds. Dialelic model allows to estimate the individual average heterosis (hI), between two breeds (hIi-j), maternal genetic effects (gM) and between two breeds (gMi-j), direct genetic effects (gI) and between two breeds (gIi-j). Backcrosses model allows to estimate maternal heterosis effects (hM) and between two breeds (hM). The data used were from Wilson and Johnson (1981) with the variable numbers of pigs at 42 days (ncv42d). Swine breeds were  Duroc (DD), Hampshire (HH) and Yorkshire (YY), their reciprocal crosses and backcrosses. From SAS® means were estimated by PROC MEANS, means transposition by PROC TRANSPOSE and the genetic parameters by mean contrast. Means of pure breeds, reciprocal crosses and backcrosses were estimated. Comparisons of values from Magofke and Garcia (2001) with those of the SAS® values showed no discrepancies in gMi-j but there was a discrepancy of 6,25% in YY. No discrepancy was found in gIi-j, but in gIi, the discrepancy was not higher than 0,5%. Discrepancy in hM,  in units and percentage, were not higher than 0,2%. The higher discrepancy in hMi-j was 5,37%. Discrepancies were in function of rounding figures and significant figures being considerate. SAS® routine estimated correctly the genetic parameters.

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Main Author: Guerra-Martínez, Pedro
Format: Digital revista
Language:spa
Published: Instituto de Innovación Agropecuaria de Panamá 2017
Online Access:http://www.revistacienciaagropecuaria.ac.pa/index.php/ciencia-agropecuaria/article/view/23
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spelling oai:ojs.revistacienciaagropecuaria.ac.pa:article-232021-07-06T15:37:30Z ESTIMATION OF GENETIC PARAMETERS FROM DIALELIC CROSSBREEDING WITH THREE BREEDS USING STATISTICAL SOFTWARE ESTIMACIÓN DE PARÁMETROS GENÉTICOS DEL CRUZAMIENTO DIALÉLICO CON TRES RAZAS USANDO UN PROGRAMA ESTADÍSTICO COMPUTARIZADO Guerra-Martínez, Pedro The objective of this work was to develop a SAS® routine to facilitate the estimation of dialelic crossbreeding parameters with three breeds. Dialelic model allows to estimate the individual average heterosis (hI), between two breeds (hIi-j), maternal genetic effects (gM) and between two breeds (gMi-j), direct genetic effects (gI) and between two breeds (gIi-j). Backcrosses model allows to estimate maternal heterosis effects (hM) and between two breeds (hM). The data used were from Wilson and Johnson (1981) with the variable numbers of pigs at 42 days (ncv42d). Swine breeds were  Duroc (DD), Hampshire (HH) and Yorkshire (YY), their reciprocal crosses and backcrosses. From SAS® means were estimated by PROC MEANS, means transposition by PROC TRANSPOSE and the genetic parameters by mean contrast. Means of pure breeds, reciprocal crosses and backcrosses were estimated. Comparisons of values from Magofke and Garcia (2001) with those of the SAS® values showed no discrepancies in gMi-j but there was a discrepancy of 6,25% in YY. No discrepancy was found in gIi-j, but in gIi, the discrepancy was not higher than 0,5%. Discrepancy in hM,  in units and percentage, were not higher than 0,2%. The higher discrepancy in hMi-j was 5,37%. Discrepancies were in function of rounding figures and significant figures being considerate. SAS® routine estimated correctly the genetic parameters. El objetivo de este trabajo fue desarrollar una rutina de SAS® para facilitar la estimación de parámetros genéticos del cruzamiento dialélico con tres razas. El modelo dialélico permite estimar la heterosis individual promedio (hI), entre dos razas (hIi-j), los efectos genéticos maternales (gM) y entre dos razas (gMi-j), efectos genéticos directo (gI) y entre dos razas (gIi-j). El modelo de retrocruzas permite estimar los efectos heterócicos maternales (hM) y entre dos razas (hMi-j). Los datos utilizados fueron de Wilson y Johnson (1981) con la variable número de cerdos a los 42 días (ncv42d). Las razas porcinas fueron Duroc (DD), Hampshire (HH) y Yorkshire (YY), sus cruces recíprocos y retrocruzas. Del SAS® se estimaron las medias a través del PROC MEANS, la transposición de las medias por PROC TRANSPOSE y los parámetros genéticos a través de contrastes de medias. Se estimaron las medias para las razas puras, cruces recíprocos y retrocuzas. Al comparar los valores reportados por Magofke y García (2001) con los del Sistema SAS® no discreparon en gMi-j, pero en gMi hubo una discrepancia de 6,25% en YY. No discreparon los valores de gIi-j. En gIi, la discrepancia no fue mayor al 0,5%. La hI en porcentaje, la discrepancia mayor fue 1,32% y entre HH y YY fue 1,15%. La discrepancia en hM en unidades y porcentaje no fue mayor al 0,2%. La mayor discrepancia en hMH-Y con 5,37%. Las discrepancias están en función del redondeo de los datos y las cifras significativas consideradas. La rutina de SAS® estima acertadamente los parámetros genéticos. Instituto de Innovación Agropecuaria de Panamá 2017-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo revisado por pares application/pdf http://www.revistacienciaagropecuaria.ac.pa/index.php/ciencia-agropecuaria/article/view/23 Ciencia Agropecuaria; Núm. 27 (2017); 54-67 2414-3278 0258-6452 spa http://www.revistacienciaagropecuaria.ac.pa/index.php/ciencia-agropecuaria/article/view/23/15
institution IDIAP
collection OJS
country Panamá
countrycode PA
component Revista
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databasecode rev-cienciaagropecuaria
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region America Central
libraryname Centro de Información Documental Agropecuaria
language spa
format Digital
author Guerra-Martínez, Pedro
spellingShingle Guerra-Martínez, Pedro
ESTIMATION OF GENETIC PARAMETERS FROM DIALELIC CROSSBREEDING WITH THREE BREEDS USING STATISTICAL SOFTWARE
author_facet Guerra-Martínez, Pedro
author_sort Guerra-Martínez, Pedro
title ESTIMATION OF GENETIC PARAMETERS FROM DIALELIC CROSSBREEDING WITH THREE BREEDS USING STATISTICAL SOFTWARE
title_short ESTIMATION OF GENETIC PARAMETERS FROM DIALELIC CROSSBREEDING WITH THREE BREEDS USING STATISTICAL SOFTWARE
title_full ESTIMATION OF GENETIC PARAMETERS FROM DIALELIC CROSSBREEDING WITH THREE BREEDS USING STATISTICAL SOFTWARE
title_fullStr ESTIMATION OF GENETIC PARAMETERS FROM DIALELIC CROSSBREEDING WITH THREE BREEDS USING STATISTICAL SOFTWARE
title_full_unstemmed ESTIMATION OF GENETIC PARAMETERS FROM DIALELIC CROSSBREEDING WITH THREE BREEDS USING STATISTICAL SOFTWARE
title_sort estimation of genetic parameters from dialelic crossbreeding with three breeds using statistical software
description The objective of this work was to develop a SAS® routine to facilitate the estimation of dialelic crossbreeding parameters with three breeds. Dialelic model allows to estimate the individual average heterosis (hI), between two breeds (hIi-j), maternal genetic effects (gM) and between two breeds (gMi-j), direct genetic effects (gI) and between two breeds (gIi-j). Backcrosses model allows to estimate maternal heterosis effects (hM) and between two breeds (hM). The data used were from Wilson and Johnson (1981) with the variable numbers of pigs at 42 days (ncv42d). Swine breeds were  Duroc (DD), Hampshire (HH) and Yorkshire (YY), their reciprocal crosses and backcrosses. From SAS® means were estimated by PROC MEANS, means transposition by PROC TRANSPOSE and the genetic parameters by mean contrast. Means of pure breeds, reciprocal crosses and backcrosses were estimated. Comparisons of values from Magofke and Garcia (2001) with those of the SAS® values showed no discrepancies in gMi-j but there was a discrepancy of 6,25% in YY. No discrepancy was found in gIi-j, but in gIi, the discrepancy was not higher than 0,5%. Discrepancy in hM,  in units and percentage, were not higher than 0,2%. The higher discrepancy in hMi-j was 5,37%. Discrepancies were in function of rounding figures and significant figures being considerate. SAS® routine estimated correctly the genetic parameters.
publisher Instituto de Innovación Agropecuaria de Panamá
publishDate 2017
url http://www.revistacienciaagropecuaria.ac.pa/index.php/ciencia-agropecuaria/article/view/23
work_keys_str_mv AT guerramartinezpedro estimationofgeneticparametersfromdialeliccrossbreedingwiththreebreedsusingstatisticalsoftware
AT guerramartinezpedro estimaciondeparametrosgeneticosdelcruzamientodialelicocontresrazasusandounprogramaestadisticocomputarizado
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