Genotyping of the Holstein-Friesian crossbred cattle for CD18 gene using PCR-RFLP
2014
A. S. Khade | A. Y. Doiphode | U. D. Umrikar | M. P. Sawane | V. D. Pawar
Aim: The present study was undertaken in Holstein-Friesian (HF) crossbred cattle with the objective to find out genotype of HF crossbred cattle for Bovine Leucocyte Adhesion Deficiency (BLAD) by using PCR-RFLP. Materials and Methods: 50 blood samples were collected from HF crossbred cattle and subjected to PCR. The amplified PCR products were digested using Taq I restriction enzyme at 65 oC overnight. After restriction digestion, the final PCR products were electrophoresed on 2.5 % agarose gel. Results: All the 50 animals under present investigation were found to be normal as the amplified PCR product upon digestion with Taq I restriction enzyme, revealed two bands of 313 bp and 54 bp for normal animals. Conclusions: In the present investigation D128G carrier frequency was found to be 0 %. However, recent reports suggest that the mutant gene has already been observed in the HF crossbred cattle population of India, which makes it necessary to screen the animals to avoid the risk of spreading BLAD in the breeding cattle population.
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