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Association between IGF-IR gene polymorphisms and productive and reproductive traits in Holstein cows



Association between IGF-IR gene polymorphisms and productive and reproductive traits in Holstein cows



Arquivo Brasileiro de Medicina Veterinaria e Zootecnia 57(6): 772-776



The association between the single strand conformation polymorphism (SSCP) in the gene of insulin-like growth factor-I receptor (IGF-IR) and age at first calving (AFC), calving interval (CI), lactation length (LL) and milk yield (MY) was studied using 106 graded Holstein cows. The polymerase chain reaction (PCR) with specific initiating oligonucleotides resulted to an amplified fragment of 335 pb. The population genotype frequencies were 82.1 and 17.9% for AA and AB genotypes, respectively.

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Accession: 004400564

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DOI: 10.1590/s0102-09352005000600011


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