Data/hora: 16/06/2024 00:45:23

Provedor de dados: | 45
País: | Brazil
Título: | Genetic evaluation of milking buffaloes (Bubalus bubalis): bull ranking
Autores: | Marques,L.C.; McManus,C.; Peripolli,V.; Araújo,C.V.; Matos,A.S.; Costa,J.S.; Silva,C.S.; Sales,R.L.; Camargo Júnior,R.N.C.; Laureano,M.M.M.; Marques,J.R.F.
Data: | 2019-10-01
Ano: | 2019
Palavras-chave: | Genetic management; Heritability; Correlation; Reproductive efficiency.
Resumo: | ABSTRACT The objective of this study was to evaluate genetic aspects related to production and reproductive efficiency of Murrah and Mediterranean buffaloes and their crosses. A ranking of bulls from Embrapa Eastern Amazonia was also composed to guide assisted mating. Birth records of 2,322 Murrah, Mediterranean, and crossbred buffaloes from the Embrapa Eastern Amazon herd, from 1953 to 2013, as well as information on production and reproductive traits were used. Genetic analyzes were performed in the WOMBAT software using the animal model with two-trait analysis. While heritability (h2) for total milk production (TMP) and fat milk percentage (F) were generally high, for reproductive traits h2 tended to be low. Genetic correlations for TMP with the other traits were low and negative, except for TMP with calving interval (CI) and service period (SP) in the Mediterranean breed and with age at first calving (AFC) and SP in crossbred, which were positive and high. Bull 1001 had high predicted transmitting ability (PTA) for TMP, so it should transmit a greater volume of milk to his offspring, although it had a lower PTA for F. There was sufficient variability within the herd to work with genetic management for both production and reproductive efficiency.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000501712
Editor: | Universidade Federal de Minas Gerais, Escola de Veterinária
Relação: | 10.1590/1678-4162-10819
Formato: | text/html
Fonte: | Arquivo Brasileiro de Medicina Veterinária e Zootecnia  v.71 n.5 2019
Fonte: | info:eu-repo/semantics/openAccess