Genetic analysis of growth, visual scores, height, and carcass traits in Nelore cattle
© 2021 Japanese Society of Animal Science..
Covariance components were estimated for growth traits (BW, birth weight; WW, weaning weight; YW, yearling weight), visual scores (BQ, breed quality; CS, conformation; MS, muscling; NS, navel; PS, finishing precocity), hip height (HH), and carcass traits (BF, backfat thickness; LMA, longissimus muscle area) measured at yearling. Genetic gains were obtained and validation models on direct and maternal effects for BW and WW were fitted. Genetic correlations of growth traits with CS, PS, MS, and HH ranged from 0.20 ± 0.01 to 0.94 ± 0.01 and were positive and low with NS (0.11 ± 0.01 to 0.20 ± 0.01) and favorable with BQ (0.14 ± 0.02 to 0.37 ± 0.02). Null to moderate genetic correlations were obtained between growth and carcass traits. Genetic gains were positive and significant, except for BW. An increase of 0.76 and 0.72 kg is expected for BW and WW, respectively, per unit increase in estimated breeding value (EBV) for direct effect and an additional 0.74 and 1.43, respectively, kg per unit increase in EBV for the maternal effect. Monitoring genetic gains for HH and NS is relevant to maintain an adequate body size and a navel morphological correction, if necessary. Simultaneous selection for growth, morphological, and carcass traits in line with improve maternal performance is a feasible strategy to increase herd productivity.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:92 |
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| Enthalten in: |
Animal science journal = Nihon chikusan Gakkaiho - 92(2021), 1 vom: 19. Jan., Seite e13611 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
da Silveira, Daniel Duarte [VerfasserIn] |
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| Links: |
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| Themen: |
Animal breeding |
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| Anmerkungen: |
Date Completed 10.09.2021 Date Revised 03.05.2023 published: Print Citation Status MEDLINE |
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| doi: |
10.1111/asj.13611 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM329743910 |
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| 245 | 1 | 0 | |a Genetic analysis of growth, visual scores, height, and carcass traits in Nelore cattle |
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| 520 | |a © 2021 Japanese Society of Animal Science. | ||
| 520 | |a Covariance components were estimated for growth traits (BW, birth weight; WW, weaning weight; YW, yearling weight), visual scores (BQ, breed quality; CS, conformation; MS, muscling; NS, navel; PS, finishing precocity), hip height (HH), and carcass traits (BF, backfat thickness; LMA, longissimus muscle area) measured at yearling. Genetic gains were obtained and validation models on direct and maternal effects for BW and WW were fitted. Genetic correlations of growth traits with CS, PS, MS, and HH ranged from 0.20 ± 0.01 to 0.94 ± 0.01 and were positive and low with NS (0.11 ± 0.01 to 0.20 ± 0.01) and favorable with BQ (0.14 ± 0.02 to 0.37 ± 0.02). Null to moderate genetic correlations were obtained between growth and carcass traits. Genetic gains were positive and significant, except for BW. An increase of 0.76 and 0.72 kg is expected for BW and WW, respectively, per unit increase in estimated breeding value (EBV) for direct effect and an additional 0.74 and 1.43, respectively, kg per unit increase in EBV for the maternal effect. Monitoring genetic gains for HH and NS is relevant to maintain an adequate body size and a navel morphological correction, if necessary. Simultaneous selection for growth, morphological, and carcass traits in line with improve maternal performance is a feasible strategy to increase herd productivity | ||
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| 700 | 1 | |a Campos, Gabriel Soares |e verfasserin |4 aut | |
| 700 | 1 | |a de Vargas, Lucas |e verfasserin |4 aut | |
| 700 | 1 | |a de Souza, Fabio Ricardo Pablos |e verfasserin |4 aut | |
| 700 | 1 | |a Roso, Vanerlei Mozaquatro |e verfasserin |4 aut | |
| 700 | 1 | |a Boligon, Arione Augusti |e verfasserin |4 aut | |
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