| Registro completo |
| Provedor de dados: |
Ciência Rural
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| País: |
Brazil
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| Título: |
Genetic characterization of a brangus-ibage cattle population: biochemical polymorphisms and reproductive efficiency
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| Autores: |
Henkes,Luiz Ernani
Papadopolis,Lídia Gonzalez
Steigleder,Clara Sabina
Moraes,José Carlos Ferrugem
Weimer,Tania de Azevedo
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| Data: |
2000-10-01
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| Ano: |
2000
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| Palavras-chave: |
Brangus-Ibage cattle
Genetic characterization
Reproductive efficiency
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| Resumo: |
Biochemical techniques were used to investigate the genetic variability in a Brangus-Ibage population by determining allele frequencies of 18 blood protein systems: Hemogloin beta-Chain (Hb), Albumin (Alb), Amylase (Am), Transferrin (Tf), Carbonic Anhydrase (CA), Ceruloplasmin (Cp), Malic Enzyme (ME), Diaphorase I and II (Dia I and Dia II), Slow Alpha 2 Macroglobulin (Ap), Acid Phosphatase (ACP), Esterase B and D (EstB and EstD), Phosphogluconate Dehydrogenase (PGD), Glucose-6-Phosphate Dehydrogenase (G-6-PD), Glucose-Phosphate-Isomerase (GPI), Superoxide Dismutase (SOD) and Glyoxalase I (GLO). The percentage of polymorphic loci were estimated at 0.27, the mean number of alleles was 1.33 and the mean heterozygosity was 0.07. There was a good agreement between expected and observed heterozygosity values. The population was in agreement with Hardy-Weinberg expectations in all systems. Reproductive records allowed to estimate three parameters of reproductive efficiency: mean age at first calving (1152.15 ± 166.60 days), mean calving interval (539.23 ± 124.10 days) and mean weight at first calving (391.02 ± 37.59kg). No relationship was found between reproductive efficiency and genetic systems.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782000000500010
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| Editor: |
Universidade Federal de Santa Maria
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| Relação: |
10.1590/S0103-84782000000500010
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| Formato: |
text/html
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| Fonte: |
Ciência Rural v.30 n.5 2000
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| Direitos: |
info:eu-repo/semantics/openAccess
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