Data/hora: 06/06/2024 04:51:21

Provedor de dados: | 65
País: | Brazil
Título: | Association between molecular markers linked to the Leptin gene and weight gain in postpartum beef cows
Autores: | Almeida,Sabrina Esteves Matos; Almeida,Erik Amazonas de; Terra,Gustavo; Neves,Jairo Pereira; Gonçalves,Paulo Bayard Dias; Weimer,Tania de Azevedo.
Data: | 2007-02-01
Ano: | 2007
Palavras-chave: | Leptin; STRs; SNPs; Beef cattle; Weight gain; Post-partum.
Resumo: | Three short tandem repeats (STRs), BMS1074, BM1500, IDVGA-51, and three single nucleotide polymorphisms (SNPs), LEPSau3AI (A/B), LEPSau3AI (+/-) and LEPKpn2I linked to the LEP gene were investigated to verify associations with productive performance in postpartum cows of two beef cattle breeds, Aberdeen Angus (AA, n=98) and Charolais (C, n=83). After polymerase chain reaction, STRs were analyzed by vertical electrophoresis and SNPs in agarose gel after endonucleases cleavage. In AA herd 79% of BMS1074*151 carriers had a lower average daily weight gain (ADG) when compared with the population mean daily weight gain (103g), while 62% of BMS1074*151 non-carriers presented a higher ADG (P&lt;0.01); AA animals with at least one BMS1074*151 allele showed a ADG about 159g lower than that of other animals (P&lt;0.01). In both herds, carriers of the BM1500*136 allele presented higher ADG (about 75g day-1 higher in AA, P&lt;0.05, and 96g day-1 in C, P&lt;0.10); animals with one BM1500*136 allele had about a 3-fold higher chance of having a higher ADG than non-cariers, in both populations.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782007000100033
Editor: | Universidade Federal de Santa Maria
Relação: | 10.1590/S0103-84782007000100033
Formato: | text/html
Fonte: | Ciência Rural  v.37 n.1 2007
Fonte: | info:eu-repo/semantics/openAccess