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International Journal of Poultry Science

.: Home > International Journal of Poultry Science > 2012 > Volume 11 Number 6 > Leena Chandrasekhar, R.V. Prasad and K.V. Jamuna

Ultrastructural Studies of Involuting Bursa and Thymus of Giriraja Birds (Gallus domesticus)

Leena Chandrasekhar, R.V. Prasad and K.V. Jamuna
Karnataka Veterinary Animal and Fisheries Science University, 560024, Bangalore, India
Abstract :

The ultra structural changes of involuting cells of bursa of fabricius and thymus could be classified as nuclear and cytoplasmic changes. Major cytoplasmic changes include arrangement of cytoskeletal filaments in parallel arrays, cytoplasmic membrane blebbing and dilatation of endoplasmic reticulum. Nuclear changes included clumping of chromatin, elongation and appearance of convolutions of the nuclear membrane with karyorrhexis, karyolysis and nucleolar disintegration. There is consequent cell volume reduction, detachment of cell from surroundings, formation of several membrane bound apoptotic bodies and its ingestion by neighboring cells.

Keywords :
Ultrastructure, involution, bursa, thymus

Date Deposited : 27 Feb 2015 14:10

Last Modified : 27 Feb 2015 14:10

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Volume 11, Number 6, - 2012 , ISSN 1682-8356

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