Direct and maternal genetic effects for growth traits in indubrazil cattle.
The objective was to estimate (co)variance components and genetic parameters for birth weight, adjusted 205-day (d) weaning weight, and adjusted 365-d yearling weight of Mexican Indubrazil calves obtained from an experimental herd under tropical conditions. (Co)variance components and genetic param...
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| Format: | Article |
| Language: | English |
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Universidad del Zulia
2013-10-01
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| Series: | Revista Científica |
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| Online Access: | http://www.produccioncientificaluz.org/index.php/cientifica/article/view/15826 |
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| author | íngel Ríos Utrera Víctor Delio Hernández Hernández Eugenio Villagómez Amezcua Manjarrez Juan Prisciliano Zárate Martínez José Alfredo Villagómez Cortés |
| author_facet | íngel Ríos Utrera Víctor Delio Hernández Hernández Eugenio Villagómez Amezcua Manjarrez Juan Prisciliano Zárate Martínez José Alfredo Villagómez Cortés |
| author_sort | íngel Ríos Utrera |
| collection | DOAJ |
| description | The objective was to estimate (co)variance components and genetic parameters for birth weight, adjusted 205-day (d) weaning weight, and adjusted 365-d yearling weight of Mexican Indubrazil calves obtained from an experimental herd under tropical conditions. (Co)variance components and genetic parameters were estimated fitting single-trait animal models with the MTDFREML program. For birth weight, the model included the direct and maternal genetic effects as well as the (co)variance between these two effects. The model for adjusted 205-d weaning weight was similar to the one for birth weight, but also included the maternal permanent environmental effect. The animal model to analyze adjusted 365-d yearling weight included the direct genetic effect. For birth weight and adjusted 205-d weaning weight, direct genetic effects were more important than maternal genetic effects. Estimates of direct heritability were: 0.27, 0.11 and 0.13 for birth weight, adjusted 205-d weaning weight and adjusted 365-d yearling weight, respectively. Estimates of maternal heritability were: 0.10 and 0.09 for birth weight and adjusted 205-d weaning weight, respectively. The estimate of the correlation between direct and maternal effects for adjusted 205-d weaning weight was relatively low (-0.27). Estimates of direct heritability for weaning and yearling weights suggest that such traits could be increased by direct selection.
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| first_indexed | 2024-04-10T06:43:13Z |
| format | Article |
| id | doaj.art-bc8e2b6824454d35bad04a02d295954d |
| institution | Directory Open Access Journal |
| issn | 0798-2259 2521-9715 |
| language | English |
| last_indexed | 2024-04-10T06:43:13Z |
| publishDate | 2013-10-01 |
| publisher | Universidad del Zulia |
| record_format | Article |
| series | Revista Científica |
| spelling | doaj.art-bc8e2b6824454d35bad04a02d295954d2023-02-28T15:22:26ZengUniversidad del ZuliaRevista Científica0798-22592521-97152013-10-01235Direct and maternal genetic effects for growth traits in indubrazil cattle. íngel Ríos Utrera0Víctor Delio Hernández Hernández1Eugenio Villagómez Amezcua Manjarrez2Juan Prisciliano Zárate Martínez3José Alfredo Villagómez Cortés4Campo experimental La Posta-MéxicoCampo experimental La Posta-MéxicoInstituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias-MéxicoCampo experimental La Posta-MéxicoUniversidad Veracruzana-México The objective was to estimate (co)variance components and genetic parameters for birth weight, adjusted 205-day (d) weaning weight, and adjusted 365-d yearling weight of Mexican Indubrazil calves obtained from an experimental herd under tropical conditions. (Co)variance components and genetic parameters were estimated fitting single-trait animal models with the MTDFREML program. For birth weight, the model included the direct and maternal genetic effects as well as the (co)variance between these two effects. The model for adjusted 205-d weaning weight was similar to the one for birth weight, but also included the maternal permanent environmental effect. The animal model to analyze adjusted 365-d yearling weight included the direct genetic effect. For birth weight and adjusted 205-d weaning weight, direct genetic effects were more important than maternal genetic effects. Estimates of direct heritability were: 0.27, 0.11 and 0.13 for birth weight, adjusted 205-d weaning weight and adjusted 365-d yearling weight, respectively. Estimates of maternal heritability were: 0.10 and 0.09 for birth weight and adjusted 205-d weaning weight, respectively. The estimate of the correlation between direct and maternal effects for adjusted 205-d weaning weight was relatively low (-0.27). Estimates of direct heritability for weaning and yearling weights suggest that such traits could be increased by direct selection. http://www.produccioncientificaluz.org/index.php/cientifica/article/view/15826genetic effectsgrowth traitsIndubrazil cattletropic |
| spellingShingle | íngel Ríos Utrera Víctor Delio Hernández Hernández Eugenio Villagómez Amezcua Manjarrez Juan Prisciliano Zárate Martínez José Alfredo Villagómez Cortés Direct and maternal genetic effects for growth traits in indubrazil cattle. Revista Científica genetic effects growth traits Indubrazil cattle tropic |
| title | Direct and maternal genetic effects for growth traits in indubrazil cattle. |
| title_full | Direct and maternal genetic effects for growth traits in indubrazil cattle. |
| title_fullStr | Direct and maternal genetic effects for growth traits in indubrazil cattle. |
| title_full_unstemmed | Direct and maternal genetic effects for growth traits in indubrazil cattle. |
| title_short | Direct and maternal genetic effects for growth traits in indubrazil cattle. |
| title_sort | direct and maternal genetic effects for growth traits in indubrazil cattle |
| topic | genetic effects growth traits Indubrazil cattle tropic |
| url | http://www.produccioncientificaluz.org/index.php/cientifica/article/view/15826 |
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