Anatomical And Histomorphochemical Changes In Buffalo Stomach During Prenatal Life
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Date
2002
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Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana
Abstract
The present investigation was made on 27 Indian buffalo foetii ranging from
5.0 cm 62 cm crown rump length (CRL), to elucidate gross, histomorphological ,
histochemical and histoenzymological development of prenatal stomach. The gross
anatomical study r evealed that major ity of structures wer e developed at 11.2 cm
CRL. Histomorphologically the forestoamch epithelium was divisible into dark
basal and light superficial zone. The abomasal epithelium was stratified cuboidal to
columnar type which transformed to simple columnar. The papilla appeared in
rumen at 19.6 cm CRL and in reticulum at 14.7 cm CRL. The primary and
secondary omasal lamina and abomasal folds were present at 5.5 cm CRL. At 55
60 cm CRL forestomach epithelium showed signs of keratinization. The lamina
muscularis mucosae appeared in omasal laminae and fundic abomasum at 11.2 cm
CRL whereas in pyloric abomasum at 14.7 cm CRL. The tunica muscularis at places
was having inner longitudinal and outer circular orientation of smooth muscle fibers.
The pyloric and fundic glands were observed in abomasum at 14.7 cm and 19.6 cm
CRL, respectively. The parietal cell s appeared at 45 cm CRL in abomasum. The
neutral mucopolysaccharides decreased in forestomach with increase in CRL
whereas showed increasing trend in abomasum. The moderate to strong alcinophilic
reaction was observed in different tunics of stomach. The lipid droplets were
observed in discrete patches. The phosphatases and oxidoreductases exhibited
moderate to strong activity in basal zone of forestomach epithelium whereas activity
was uniform in epithelium of abomasum. AchEase activity was demonstrated in
neuronal elements in different parts of stomach.