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Principal component and cluster analyses of production and fertility traits in Red Sindhi dairy cattle breed in Brazil
The objective of this study was to investigate the relationship among functional traits (age at first calving (AFC), calving interval (CI), reproductive efficiency (RE), total milk yield (TMY), and lactation period (LP)) in Red Sindhi breed through multivariate techniques. For this goal, performance...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer Netherlands
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6969864/ https://www.ncbi.nlm.nih.gov/pubmed/31372883 http://dx.doi.org/10.1007/s11250-019-02009-7 |
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author | Mello, Raquel Rodrigues Costa Sinedino, Letícia Del-Penho Ferreira, Joaquim Esquerdo de Sousa, Sabrina Luzia Gregio de Mello, Marco Roberto Bourg |
author_facet | Mello, Raquel Rodrigues Costa Sinedino, Letícia Del-Penho Ferreira, Joaquim Esquerdo de Sousa, Sabrina Luzia Gregio de Mello, Marco Roberto Bourg |
author_sort | Mello, Raquel Rodrigues Costa |
collection | PubMed |
description | The objective of this study was to investigate the relationship among functional traits (age at first calving (AFC), calving interval (CI), reproductive efficiency (RE), total milk yield (TMY), and lactation period (LP)) in Red Sindhi breed through multivariate techniques. For this goal, performance data provided by the Brazilian Association of Zebu Breeders related to 560 Red Sindhi dairy cattle from 28 different herds in Brazil, born in the period from 1987 to 2011, were used. Principal component analysis with correlation matrix was used to find the relationship among AFC, CI, RE, TMY, and LP. It was found that for all functional traits, first 3 principal components explained more than 90% of the total variation. Clustering analysis was performed based on Tocher method, and results showed physiological relationships among functional traits. By cluster analysis, twelve different groups were generated from the pool of Sindhi herds analyzed, with a great homogeneity among females for the traits evaluated and only few females generating separate groups. Four hundred and twenty-nine females were clustered in one group, representing 76.60% of the genotypes. Total milk yield (TMY) showed 71.92% of the total variation, and age at first calving (AFC) contributed with 23.06% of the variation, being the two most important traits for the variability of the data set. In conclusion, the multivariate procedures were effective in generating the correlations among the functional traits, showing that CI is correlated with RE and all these functional traits are related with total milk yield. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1007/s11250-019-02009-7) contains supplementary material, which is available to authorized users. |
format | Online Article Text |
id | pubmed-6969864 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Springer Netherlands |
record_format | MEDLINE/PubMed |
spelling | pubmed-69698642020-01-30 Principal component and cluster analyses of production and fertility traits in Red Sindhi dairy cattle breed in Brazil Mello, Raquel Rodrigues Costa Sinedino, Letícia Del-Penho Ferreira, Joaquim Esquerdo de Sousa, Sabrina Luzia Gregio de Mello, Marco Roberto Bourg Trop Anim Health Prod Regular Articles The objective of this study was to investigate the relationship among functional traits (age at first calving (AFC), calving interval (CI), reproductive efficiency (RE), total milk yield (TMY), and lactation period (LP)) in Red Sindhi breed through multivariate techniques. For this goal, performance data provided by the Brazilian Association of Zebu Breeders related to 560 Red Sindhi dairy cattle from 28 different herds in Brazil, born in the period from 1987 to 2011, were used. Principal component analysis with correlation matrix was used to find the relationship among AFC, CI, RE, TMY, and LP. It was found that for all functional traits, first 3 principal components explained more than 90% of the total variation. Clustering analysis was performed based on Tocher method, and results showed physiological relationships among functional traits. By cluster analysis, twelve different groups were generated from the pool of Sindhi herds analyzed, with a great homogeneity among females for the traits evaluated and only few females generating separate groups. Four hundred and twenty-nine females were clustered in one group, representing 76.60% of the genotypes. Total milk yield (TMY) showed 71.92% of the total variation, and age at first calving (AFC) contributed with 23.06% of the variation, being the two most important traits for the variability of the data set. In conclusion, the multivariate procedures were effective in generating the correlations among the functional traits, showing that CI is correlated with RE and all these functional traits are related with total milk yield. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1007/s11250-019-02009-7) contains supplementary material, which is available to authorized users. Springer Netherlands 2019-08-01 2020 /pmc/articles/PMC6969864/ /pubmed/31372883 http://dx.doi.org/10.1007/s11250-019-02009-7 Text en © The Author(s) 2019 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
spellingShingle | Regular Articles Mello, Raquel Rodrigues Costa Sinedino, Letícia Del-Penho Ferreira, Joaquim Esquerdo de Sousa, Sabrina Luzia Gregio de Mello, Marco Roberto Bourg Principal component and cluster analyses of production and fertility traits in Red Sindhi dairy cattle breed in Brazil |
title | Principal component and cluster analyses of production and fertility traits in Red Sindhi dairy cattle breed in Brazil |
title_full | Principal component and cluster analyses of production and fertility traits in Red Sindhi dairy cattle breed in Brazil |
title_fullStr | Principal component and cluster analyses of production and fertility traits in Red Sindhi dairy cattle breed in Brazil |
title_full_unstemmed | Principal component and cluster analyses of production and fertility traits in Red Sindhi dairy cattle breed in Brazil |
title_short | Principal component and cluster analyses of production and fertility traits in Red Sindhi dairy cattle breed in Brazil |
title_sort | principal component and cluster analyses of production and fertility traits in red sindhi dairy cattle breed in brazil |
topic | Regular Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6969864/ https://www.ncbi.nlm.nih.gov/pubmed/31372883 http://dx.doi.org/10.1007/s11250-019-02009-7 |
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