| Registro completo |
| Provedor de dados: |
PAB
|
| País: |
Brazil
|
| Título: |
Estimates of genetic parameters and cluster analysis for worm resistance and resilience in Santa Inês meat sheep
|
| Autores: |
Oliveira,Elisa Junqueira
Savegnago,Rodrigo Pelicioni
Freitas,Luara Afonso de
Freitas,Anielly Paula
Maia,Suellen Rodrigues
Simili,Flávia Fernanda
Faro,Lenira El
Costa,Ricardo Lopes Dias da
Santana Júnior,Mário Luiz
Paz,Claudia Cristina Paro de
|
| Data: |
2018-12-01
|
| Ano: |
2018
|
| Palavras-chave: |
Cluster analysis
Famacha
Genetic correlation
Heritability
K-means
Multivariate analysis
|
| Resumo: |
Abstract: The objective of this work was to estimate genetic parameters for traits related to resistance to endoparasites in Santa Inês sheep, for a possible inclusion in sheep breeding programs, as well as to evaluate the additive genetic pattern of the animals using cluster analyzes, in order to assess whether there are groups within the population that can be used as candidates for selection for resistance to endoparasites. The studied traits were: Famacha score, fecal egg counts (FEC), packed cell volume (PCV), total plasma protein (TPP), body condition score (BCS), and body weight (BW). Heritability estimates ranged from 0.17 (0.05) for TPP to 0.31 (0.07) for BCS. The cluster analyzes based on the breeding values identified four clusters. Famacha and BCS can be recommended as selection criteria for resistance to hematophagous endoparasites because they can respond to selection and are easy to be measured. Animals from cluster 1 have great potential as candidates for selection because of their additive genetic pattern, taking into account body weight and endoparasite resistance due to higher breeding values for BW, BCS, PCV, and TPP and lower breeding values for Famacha and FEC.
|
| Tipo: |
Info:eu-repo/semantics/article
|
| Idioma: |
Inglês
|
| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018001201338
|
| Editor: |
Embrapa Secretaria de Pesquisa e Desenvolvimento
Pesquisa Agropecuária Brasileira
|
| Relação: |
10.1590/s0100-204x2018001200006
|
| Formato: |
text/html
|
| Fonte: |
Pesquisa Agropecuária Brasileira v.53 n.12 2018
|
| Direitos: |
info:eu-repo/semantics/openAccess
|
|
