Brangus Cattle
Mostrando 1-12 de 13 artigos, teses e dissertações.
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1. Copper and selenium supplementation in the diet of Brangus steers on the nutritional characteristics of meat
Twenty-eight Brangus cattle were used to determine the effect of copper and selenium supplementation on the carcass characteristics, fatty acid composition of the longissimus dorsi muscle and on the copper and selenium concentrations in the liver. The treatments were: no supplementation of copper or selenium; 2 mg Se/kg DM as sodium selenite; 40 mg Cu/kg DM
R. Bras. Zootec.. Publicado em: 2013-01
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2. Mitochondrial control region genetic diversity and maternal ancestry of a Brangus-Ibage cattle populations
The genetic diversity of 277 nucleotides in the mitochondrial DNA control region (nt 15,964 to 16,240 in reference sequence) was analyzed in crossbreed beef cattle (Brangus-Ibage, 5/8 Bos primigenius taurus x 3/8 Bos primigenius indicus) as well as in some Nellore samples (B. p. indicus). Fifty-seven mutations were found in Brangus-Ibage comprising 18 haplot
Publicado em: 2010
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3. Genetic characterization of a brangus-ibage cattle population-biochemical polymorphisms and reproductive efficiency / Caracterização genética de uma população de bovinos brangus-ibagé –polimorfismos bioquímicos e eficiência reprodutiva
Técnicas bioquímicas foram utilizadas para determinar a variabilidade genética numa população de bovinos da raça Brangus-Ibagé com relação a 18 sistemas protéicos sangüíneos: Hemoglobina - Cadeia b (Hb), Albumina (Alb), Amilase (Am), Transferrina (Tf), Anidrase Carbônica (CA), Ceruloplasmina (Cp), Enzima Málica (ME), Diaforase I and II (Dia I a
Publicado em: 2010
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4. Association between reproductive traits and four microsatellites in Brangus-Ibagé cattle
The aim of the present study was to verify associations between reproductive efficiency and four microsatellite markers located in synteny with genes involved in the regulation of reproductive mechanisms. A sample of 107 females from a Brangus Ibagé population (5/8 Aberdeen Angus x 3/8 Nelore) was characterized for ETH225 (D9S1) and MM12E6 (D9S20) microsate
Publicado em: 2010
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5. Reproductive deficiency in bulls from synthetic breeds according to the type of crossbreed and the morphology of the Y chromosome
We used 550 Braford and 214 Brangus-lbagé bulls to study the association between Y chromosome morphology and the evaluation of breeding-soundness, karyotyping and breeding records were used to assess Y chromosome morphology. In general, no direct association was detected between the individual type of Y chromosome and reproductive fitness as previously esti
Publicado em: 2010
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6. Genetic polymorphisms at the leptin receptor gene in three beef cattle breeds
The genetic diversity of a single nucleotide polymorphism (SNP) at the exon 20 (T945M) of the leptin receptor gene (LEPR) and of three short tandem repeats (STRs BM7225, BMS694, and BMS2145) linked to LEPR was investigated in three beef cattle herds (Brangus Ibagé, Charolais, and Aberdeen Angus). A cheap and effective new method to analyze the T945M polymor
Genetics and Molecular Biology. Publicado em: 2008
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7. Influence of copper and selenium supplementation on lipid metabolism in cattle / Influência da suplementação de cobre e selênio no metabolismo de lipídeos em bovinos
Vinte e oito bovinos Brangus foram usados para se determinar o efeito da suplementação de cobre e selênio no desempenho, características de carcaça, composição de ácidos graxos no músculo Longissimus dorsi (LD) e na concentração de colesterol sérico e no músculo LD . Os tratamentos foram : 1) C(Controle) - sem a suplementação de cobre e selên
Publicado em: 2007
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8. Mitochondrial control region genetic diversity and maternal ancestry of a Brangus-Ibage cattle populations
The genetic diversity of 277 nucleotides in the mitochondrial DNA control region (nt 15,964 to 16,240 in reference sequence) was analyzed in crossbreed beef cattle (Brangus-Ibage, 5/8 Bos primigenius taurus x 3/8 Bos primigenius indicus) as well as in some Nellore samples (B. p. indicus). Fifty-seven mutations were found in Brangus-Ibage comprising 18 haplot
Genetics and Molecular Biology. Publicado em: 2005-03
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9. Association between reproductive traits and four microsatellites in Brangus-Ibagé cattle
The aim of the present study was to verify associations between reproductive efficiency and four microsatellite markers located in synteny with genes involved in the regulation of reproductive mechanisms. A sample of 107 females from a Brangus Ibagé population (5/8 Aberdeen Angus x 3/8 Nelore) was characterized for ETH225 (D9S1) and MM12E6 (D9S20) microsate
Genetics and Molecular Biology. Publicado em: 2005-03
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10. EFFECT OF THE INCLUSION OF THE DIRECT-MATERNAL COVARIANCE ON THE ESTIMATIVE OF GENETIC PARAMETERS AND ON THE PREDICTION OF THE GENETIC VALUES FOR WEIGHT GAIN FOR CATTLE / EFEITO DA INCLUSÃO DA COVARIÂNCIA GENÉTICA DIRETA-MATERNA, NA ANÁLISE PARA ESTIMAR PARÂMETROS GENÉTICOS E PREDIZER VALORES GENÉTICOS PARA GANHO DE PESO EM BOVINOS DE CORTE.
The present study has as objective to evaluate the effect of the inclusion in the model of analysis, the covariance between the additive genetic direct and maternal effects, on the estimation of genetic parameters for average daily gain from birth to weaning (GMDND) and from weaning to 550 days of age (GMDDS), and on the prediction of genetic values and rank
Publicado em: 2005
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11. Performance and carcass characteristics of steers fed diets with different fat sources. / Desempenho e características da carcaça de novilhos alimentados com dietas contendo diferentes fontes de gordura.
Several fat sources have been utilized in feedlot diets to improve animal performance. This study carried out at the Beef Cattle Sector of the FZEA, USP, evaluated the performance and carcass and meat characteristics of 36 crossbred steers (approximately ¾ Bos taurus taurus, offspring of crossbred Simental cow x Brangus sire), with 14 months old on the aver
Publicado em: 2003
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12. Exigências de proteína e energia líquidas para o ganho de peso de tourinhos das raças Nelore e Brangus alimentados com dietas com diferentes proporções de concentrado. / Protein and energy requirements for weight gain of Nellore and Brangus bulls fed with different concentrate levels.
The determination of energy and protein requirements for maintenance and growth of beef cattle is very important for an efficient animal production. Nellore and crossed breeds like Brangus are very used in Brazil, but the main source of information about nutritional requirements is the NRC, whose data was obtained with different breeds and environments. The
Publicado em: 2002