International Journal of Advanced Research and Development

Authors
Rosaiah Kotikalapudi, Rajesh Kumar Patel, Nagaraju Naik Sugali, Murali Kommuri

Abstract
The coexistence of two or more genetically distinct cell populations derived from a single zygote is mosaicism which may be because of numerical or structural alteration in autosomes or sex chromosomes or both at any stage of development, from two-cell stage onward. Present study reveal a case of mosaicism due to structural alteration in one of the chromosome number 3. Peripheral blood was collected from a phenotypically normal and fertile Murrah buffalo bull aged between 40 to 42 months for routine cytogenetic investigation. A conventional whole blood culture was set up for chromosomal preparation. The Giemsa stained and GTG banding exhibited one field normal with 50, XY chromosomal complement out of 50 fields whereas other fields exhibited partial monosomy (3q-) due to terminal deletion in chromosome number 3. Bull was appeared to be normal with normal libido and normal semen quality. The bull is under collection. However, it is advisable that the bull having mosaicism should be checked for the fertility before use in artificial Insemination and breeding programmes.