Gross and Histomorphological Studies on Forestomach of Wild Ruminants in Comparison with Domestic Ruminants
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Date
2014-05-10
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Karnataka Veterinary, Animal and Fisheries Sciences University, Bidar
Abstract
The gross and histomorphological study was conducted on forestomachs of wild
and domestic ruminants. The wet rumino-reticular content (% BW) was more in
blackbuck and buffaloe so larger rumino-reticulum. The ruminal papillae were unevenly
distributed throughout the rumen in blackbuck, nilgai, buffaloe and sheep where as
evenly distributed in spotted deer and goat. The ruminal pillar was thick in blackbuck and
buffaloe. The papillae were absent on the ruminal pillars of blackbuck, nilgai, buffaloe
and sheep but found on the ruminal pillars of spotted deer and goat. Cellulae reticuli
division was more pronounced in buffalo and was absent in spotted deer, sheep and goat.
The highest primary crest was found in buffaloe, black buck and least in goat and spotted
deer. The omasum was smaller in spotted deer and goat compared to other species.
Histologically, forestomach was made up of stratified squamous keratinized epithelium.
In rumen, lamina muscularis mucosae was absent but found only in primary reticular
crest of reticulum and was distinct in omasum. Histochemically, various intensity of
reactions for carbohydrate, protein, fat, keratin and iron were seen. Micromertically, the
keratin layer was thicker in spotted deer, sheep and goat. The tunica muscularis of
forestomach was thicker in blackbuck and buffaloe. Based on these morphological
parameters buffaloe and blackbuck had characteristics of the grazers, goat and spotted
deer as browser, where as sheep and nilgai showed the overlapping morphology of both
grazer and browsers hence they are classified as intermediates.
Description
Ph.D. Thesis
Keywords
livestock, biological phenomena, animal tissues, layering, proteins, diseases, breeding, area, grasses, fruits