Bovine Crosses
Mostrando 1-11 de 11 artigos, teses e dissertações.
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1. Molecular marker heterozygosities and genetic distances as correlates of production traits in F1 bovine crosses.
The objective of the present study was to evaluate the influence of the degree of heterozygosity and genetic distance on growth, carcass and reproductive related features in F1 bovine crosses. We tested 10 polymorphic markers in 330 purebred cattle (Nelore, Canchim, Aberdeen Angus and Simental) and 256 crossbred cattle belonging to four crossbred groups. Ind
Genetics and Molecular Biology. Publicado em: 2011
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2. Microsatellites and RFLP heterozygosities as correlates of growth feature in F1 bovine crosses.
2002
CONGRESSO NACIONAL DE GENÉTICA. Publicado em: 2011
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3. A survey of nellore breed based on nine molecular markers.
The Brazilian Nellore is a Bos indicus brees developed from animals imported from india up to the middle of this centry. Due to its high tolerance ti the tropical environment, the Nellore became the most popular beef cattle brees in Brazil. Besidies its importance as pure breed, it has been successfully used in commeercial crosses and in the composition of n
GLOBAL CONFERENCE ON CONSERVATION OF DOMESTIC ANIMAL GENETIC RESOURCES. Publicado em: 2011
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4. Characterization of mitochondrial genotypes in the foundation herd of the Canchim beef cattle breed
The Canchim (5/8 Charolais + 3/8 Zebu) beef cattle breed was developed at Southeast-Embrapa Cattle to take advantage of hybrid vigor and to combine the higher growth rate and beef quality of Charolais with tropical adaptations of Zebu. The development of three lineages (old, new, and crossbred) has increased its genetic basis. The genotypic origin (Bos tauru
Genetics and Molecular Research. Publicado em: 2011
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5. QTL identification in bovine chromosomes 10, 11 and 12 associated with heat stress / Identificação de QTL nos cromossomos 10, 11 e 12 associados ao estresse calórico em bovinos
Heat stress impacts greatly animal production systems on tropical regions causing economical losses and affects milk production, meat production, physiology, reproduction, calf mortality and utter health. One way to reduce these losses is to use the genetic variation between Bos taurus and Bos indicus breeds for heat tolerance coupled with linked molecular m
Publicado em: 2007
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6. Polimorfismos dos genes CAPN1, CAST, LEP, TG e DGAT1 como possíveis indicadores da qualidade da carne em bovinos zebuínos e cruzados abatidos em idade jovem / Polymorphisms of the genes CAPN1, CAST, LEP, TG and DGAT1 as possible markers for bovine meet quality traits in zebu and crosses slaughtered in young age
Mais de 200 milhões de bovinos, em sua maioria animais da raça Nelore ou produtos de cruzamento com Nelore, compõem o rebanho do maior exportador de carne in natura do mundo, o Brasil. No entanto, o faturamento por kg de carne exportada poderia ser elevado se a qualidade do produto atendesse a mercados mais exigentes. A maciez da carne, a quantidade de go
Publicado em: 2007
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7. Molecular marker heterozygosities and genetic distances as correlates of production traits in F1 bovine crosses
Several studies have investigated the relationship between heterozygosity, genetic distance and production traits. The objective of the present study was to evaluate the influence of the degree of heterozygosity and genetic distance on growth, carcass and reproductive related features in F1 bovine crosses. We tested 10 polymorphic markers in 330 purebred cat
Genetics and Molecular Biology. Publicado em: 2005
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8. Association between Sscp Haplotypes at the Bovine Growth Hormone Gene and Milk Protein Percentage
The bovine Growth Hormone gene (bGH) is an attractive candidate gene for milk production in cattle. Single-strand conformation polymorphisms at bGH were identified and used to define haplotype configurations at this gene in the Israeli Holstein dairy cattle population (Bos taurus) and in the parent animals of the International Bovine Reference Family Panel (
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9. Water flow across the walls of single muscle capillaries in the frog, Rana pipiens.
Individual capillaries of the transilluminated frog muscle cutaneous pectoris were perfused with suspensions of human red cells in frog Ringer solution containing 1 g/dl bovine serum albumin. The modified Landis technique (Michel, Mason, Curry & Tooke, 1974) was used to measure hydraulic conductivities of the capillary wall. Sucrose osmotic reflexion coeffic
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10. Experimental study of transplacental passage of alpha interferon by two assay techniques.
Two methods of assaying alpha interferon (IFN-alpha) were compared during an experiment aimed at determining whether IFN-alpha crosses the human placenta. Human placentas, collected after delivery following a normal pregnancy to term, were catheterized on both sides: fetal and maternal. The IFN-alpha was introduced in known amounts in the maternal circulatio
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11. The Gene Locus yijP Contributes to Escherichia coli K1 Invasion of Brain Microvascular Endothelial Cells
Most cases of Escherichia coli meningitis develop as a result of hematogenous spread, but it is not clear how circulating E. coli crosses the blood-brain barrier. A TnphoA mutant of E. coli K1 RS218 was shown to be significantly less invasive than its parent strain in bovine and human brain microvascular endothelial cells (BMEC), which constitute the blood-b
American Society for Microbiology.