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Abstract

Study was conducted on 10 goat fetuses(5 from group I- CR length upto 20 cm and 5 from group II- CR length 20 cm and above), 5 neonatal goats (group III) and 5 adult goats (group IV) to study the configuration of collagen fibers in the skin of Capra hircus. Connective tissue in the dermis is composed of the fibrous proteins collagen, elastin, and reticulin in which collagen accounts for 70% of the total fibres. The observation (Transmission Electron Microscopic study) revealed that the fibre formation in the sections of group I fetuses was not apparent. In group II fetuses the collagen fibres appeared to arise at the angles of the fibroblast cell mainly in deep zone of dermal matrix. Micrographs show very clear histogenesis of fibres in this group. In group II (around 30 to 35 cm CR length) fetuses the growth in due course of time elevated very high. There is clear view of histogenesis of collagen fibres in fetal stage and remarkable changes with the growing age. The collagen assimilation was intense in group III goats coupled with a dynamic rearrangement of the tender collagen bundles in the dermal region. In group IV showing distribution of dense collagen bundles found in rigorously scattered and slack slender groups running parallel to the epidermis. In this group samples the variation is associated with a loss of fibrous tissue, slower rate of cellular renewal, and a reduced vascular and glandular network.