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Birsa Agricultural University, Ranchi

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19872
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Author: Baba, Mushtak Ahmed × End date: 2022 ×
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    ThesisItemOpen Access
    Comparative histological and histochemical studies on the eyelids of goat (Capra Hircus) and sheep (Ovis Aries)
    (Birsa Agricultural University, Ranchi, 1987) Baba, Mushtak Ahmed; Sinha, R. D.
    Comparative histological and histochemical studies were conducted on the upper, lower and third eyelid (nictitating apparatus) of goat and sheep. Twelve healthy Black Bengal goats and an equal number of Chotanagpuri sheep between 1-2 years of age were utilized for the investigation. HISTOLOGY SYELIDS (PALPEBRAS):Histologically, the eyelids in goat and sheep consisted of skin, subcutis, muscular layer, tarsus, tarsal glands and palpebral conjunctiva. The skin comprised of epidermis, dermis with dermal elements hairs and hair follicles, sweat and sebaceous glands. Average thickness of epidermis in goat (41.01± 1.67 ) was significantly higher than that of sheep (28.70 ± 1.24 μ). It was composed of keratinized stratified squamous epithebium having rate pags towards the free lid margin. Rete pags ware more prominent in goat. Stratum lucidum was absent in both. Epidermis was pigmented mainly towards the free edge of the lid. Pigmentation was more intense in goat than in sheep. Dermis was composed of collagen, reticular and elastic fibres and was divisible into superficial (papillary) and deep (reticular) layers. In goat, collagen fibres in the papillary layer were mostly arranged parallel to surface, whereas in sheep, these were arranged irregularly.
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    ThesisItemOpen Access
    Comparative Histological and Histochemical studies on thr eyelids of goat (Sapra Hircus) and Sheep (Ovis Aries)
    (Birsa Agricultural University, Ranchi, 1987) Baba, Mushtak Ahmed; Sinha, R. D.
    Sepithelium of nictitating membrane manifested positive reactions for glycogen, alkaline phosphate, 1ipids, proteins and acid mucopolysaccharides in both the species. Basement membrane exhibited mild PAS-positive reaction. Cartilage showed positive reaction for acid mucopolysa chariden, glycogen, lipids and carbohydrates. Nictitating gland manifested positive reactions for glycogen, lipids, protein, alkaline phosphatase and acid mucopolysaccharidas.