Consulta: creatorFacets:"Almeida,Sabrina Esteves Matos"
Registros recuperados: 2
Data/hora: 01/06/2024 00:39:37

Identification of molecular markers on bovine chromosome 18 associated to calving interval in a Brangus-Ibagé cattle herd
Provedor de dados: 65
Autores: Weimer,Tania de Azevedo; Steigleder,Clara Sabina; Machado,Márcia Silveira; Almeida,Sabrina Esteves Matos; Oliveira,João Francisco Coelho; Moraes,José Carlos Ferrugem; Henkes,Luis Ernani.
In the detection phase of a bovine marker assisted selection program, this paper investigated the genetic variability of three microsatellites on the chromosome 18 (BTA 18). The possible associations between genotypes or alleles of these markers versus weight at first calving and a lifetime calving interval (as indicators of reproductive performance) were evaluated in a beef cattle herd (5/8 Aberdeen Angus x 3/8 Nelore). Eleven alleles were detected in TGLA227 and ILSTS002 and three in BMS3004, the most frequent being TGLA227*79, ILSTS002*133, ILSTS002*135 and BMS3004*129. Polymorphic information content ranged from 0.41 to 0.84, while heterozygosity ranged from 49% to 86%, with an average value of 77%. The association analyses performed between genotype...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Microsatellites; Reproduction; Marker assisted selection; BTA 18.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782007000500050

Association between molecular markers linked to the Leptin gene and weight gain in postpartum beef cows
Provedor de dados: 65
Autores: Almeida,Sabrina Esteves Matos; Almeida,Erik Amazonas de; Terra,Gustavo; Neves,Jairo Pereira; Gonçalves,Paulo Bayard Dias; Weimer,Tania de Azevedo.
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...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Leptin; STRs; SNPs; Beef cattle; Weight gain; Post-partum.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782007000100033