2012•Unpublished venueOpen access
Prenatal Development of Sternum and Ribs of Buffalo
Jaya Lakshmi, P. Jagapathi Ramayya, T.S. Chandrasekhara Rao, Ch. Srilatha
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Abstract
The cartilaginous precursor of sternum was noticed histologically at 54 days as the bilateral cores of cartilage cells. The earliest appearance of ossification was observed in 7th segment of sternum at 88 days of gestation. The 6th sternal segment showed ossification at 89 days. The last 4 segments of sternum i.e from 7th to 4th sternebra showed ossification at 92 days. Ossification began at 96 days in 3rd segment. At 59 days, ossification was first noted in the shaft (diaphysis) of the 2nd to 6th rib. At 64 days, diaphysis of all ribs i.e from 1st to 13th showed ossification. Key words: Sternum, Development, Buffalo Sternum develops from two ventral longitudinal cartilaginous bars in domestic animals (McGeady et al., 2006). Prenatal development of sternum and ribs has been studied in sheep (Wenham, 1981) and other domestic animals (Latshaw, 1987) but information is meagre in buffalo. Hence, the present study has been undertaken. MATERIALS AND METHODS