Anatomical Studies on the Reticulum of Adult Non-Descript Sheep of Jammu Region
DOI:
https://doi.org/10.48165/ijvsbt.21.3.21Keywords:
Anatomy, Histology, Histochemistry, Reticulum, SheepAbstract
Present study was carried out on six stomach samples from adult apparently healthy non-descript sheep. Reticulum was spherical and was separated from rumen by rumino-reticular groove ventrally. Mucosa was pale brown in colour. Reticular cells were subdivided by secondary and tertiary crests. Mean empty weight of reticulum was 13.11% of the total empty weight of the stomach whereas the capacity was 6.04% of the total volume of the stomach. The dorso-ventral height of reticulum was greater than its cranio-caudal width. Histologically, reticulum consisted of tunica mucosa, tunica submucosa, tunica muscularis and tunica serosa. Lamina epithelialis was lined by keratinized stratified squamous epithelium. Lamina muscularis mucosae was present only towards the tip of primary reticular crests. Tunica muscularis had inner circular and outer longitudinal layers of smooth muscle.Thickness of outer muscular layer, length of reticular crest and width of reticular crest showed significant difference (p<0.05) and were higher at greater curvature. Histochemically, stratum corneum showed strong PAS reaction, stratum granulosum showed strong reaction for Alcian blue (pH 2.5). Distribution of glycogen was moderate in the layers of lamina epithelialis mucosae, except stratum corneum. Lamina epithelialis mucosae and tunica muscularis showed strong reaction for basic proteins. Stratum corneum showed moderate to strong reaction for lipids.
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