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Bose Institute and the Haringhata Farm, W. Bengal, India
Abstract
Hemoglobins of 317 adult Indian zebu cattle of Hariana, Deshi, Sahiwal, Gir, Tharparkar and Red Sindhi breeds and 50 adult buffaloes of Murrah breed were examined by filter paper electrophoresis. All of these breeds of cattle exhibited hemoglobin polymorphism. Individual animals belonged to hemoglobin types A, B or AB. Type C was not detected. Although the law of genetic equilibrium was followed by Hariana, Deshi, Gir and Red Sindhi breeds, there was an excess of AB individuals in all breeds. Chi-square tests showed this deviation to be significant (P<.05) for the total population and for the Sahiwal and Tharparkar breeds taken individually.
The average frequency of Hb-B gene was 0.35, a higher value than that reported elsewhere for African zebus (0.29) or European breeds (0.21), except for Jerseys. The association between hemoglobin types and the origin of various breeds was discussed, and it was shown that the gene frequency of Hb B alone would be an unreliable guide for studying breed origin. Alpha-lactalbumin A was suggested as a possibly more useful alternative.
Two electrophoretic components were detected in 50 samples of buffalo hemoglobin in which polymorphism was not observed. These components differed electrophoretically from those in the blood of cattle.
1 The authors thank A. K. Roychoudhury for discussions.
2 Chemistry Department, Bose Institute, 93/1 Acharya Prafulla Chandra Road, Calcutta 9, India.
3 Central Livestock Research Cum Breeding Station, Haringhata, P.O. Mohanpur, Nadia, West Bengal, India.
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