National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
This study was conducted on the kidneys of 18 goat foetii divided into three age groups with six number of foetii in each group. At 45 days of gestation (CRL=5.3 cm), cord like differentiating mesenchymal cells near the capsule were observed and at few places, they were arranged in clusters. The mesenchymal cells in some areas of the cortex, aggregated as nephrogenic vesicles. A vesicle at one of the end of a dividing ampulla grew into a double walled S-shaped body. At 48 days of gestation (CRL=7.5 cm), the kidney (metanephros) showed differentiating nephrogenic vesicles. At 50 days of gestation (CRL=7.6 cm), formation of the nephrogenic vesicles and their elongation into S-shaped structures increased in all the three zones of the cortex. The Bowman’s capsule was nearly spheroidal in shape and numerous angioblasts were identified at this age. In the foetus of 50 days gestational age (CRL=7.6 cm), the afferent arterioles were lined by differentiating elongated mesenchymal cells, which would be future juxtaglomerular cells. At 50 days of gestation (CRL=7.60 cm), some cells which were the forerunners of the macula densa were noticed. At 62 days (CRL=10.10 cm) of foetal age, true juxta glomerular cells were noticed.
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