Effect of leptin and IGFBP-3 gene polymorphisms on serum IgG level of cattle calves

Vivek Choudhary, Pushpendra Kumar, V. K. Saxena, T. K. Bhattacharya, Bharat Bhushan, Arjava Sharma, K. A. Ahmed

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


Leptin and IGFBP-3 are two proteins that play an important role in growth and metabolism of the animals. They are also involved in the immune function of animals and, thus, are candidate genes for the study of association with immune functions. Polymerase Chain Reaction-Restriction Fragment Length Polymorphism (PCR-RFLP) of these two genes was done to screen 64 crossbred (Holstein FriesianxHariana) female calves of one year of age. From each RFLPs (fragments) three genotypes were observed. In all the RFLPs the mutant homozygotes were very less in numbers and, hence, were excluded from the least squares analysis. The serum IgG level was estimated using SRID assay. The mean level of serum IgG was 28.8312.73 mg/ml. The effect of these identified genotypes on serum IgG level of calves at one year of age was analysed using least squares analysis. The HaeIII RFLP-AB genotype had significantly (p<0.05) higher serum IgG level (31.86±3.05) than the HaeIII RFLP-AA (25.62±2.96) genotype. There was no significant effect of leptin genotypes on the IgG level. The present results indicated a role of the IGFBP-3 gene on serum IgG level of cattle calves.

Original languageEnglish (US)
Pages (from-to)1095-1099
Number of pages5
JournalAsian-Australasian Journal of Animal Sciences
Issue number8
StatePublished - Aug 2006


  • Association
  • IGFBP-3 Gene
  • Leptin Gene
  • Serum IgG

ASJC Scopus subject areas

  • Food Science
  • Animal Science and Zoology


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