218 Tamilnadu J Veterinary Animal Sciences 7 5 218220 September October 2011 the birds with cyst ranged from 25 to 32 kgcompared to the birds with out cyst 15 to 20 kgthe entire a ID: 132613
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218 CYSTIC DILATATION OF RIGHT OVIDUCT IN LAYER CHICKENP.Srinivasan* and G.A. BalasubramaniamDepartment of Veterinary Pathology,Veterinary College and Research Institute,Namakkal, Tamil Nadu, India.is reported. Out of 6572 layer carcasses examined the condition was observed in 42 (2.45%)birds, predominantly in the age group of 61 to 80 weeks. Grossly, features were distendedabdomen that contained fluid filled cyst which varies from 2.5 cm to 10 cm in diameter. The20 to 430 ml. Microscopically, the wall of the cyst was lined by a single inner layer ofblood vessels and also an outer serosal layer.have the ability to ovulate more in order to producereproductive disorders. Although it is well known,decreased egg production and increased mortality.MATERIALS AND METHODSperiod (2005 to 2008). A total of 6572 carcasses offarms situated in and around Namakkal district, TamilNadu, India were examined. Cases with cysticweighed. After recording the size of the cysts,representative tissue samples were collected in 10standard procedures and 4 -6 staining method (Luna, 1968).RESULT AND DISCUSSIONlesions were recorded in 1715 cases. Among the1715 cases 42 (2.45 %) had cystic dilatation ofPart of the Ph.D., thesis submitted by the first author to the Tamil Nadu Veterinary and Animal Sciences University, *Corresponding author: e-mail: srinipat2004@yahoo.com Tamilnadu J. Veterinary & Animal Sciences 7 (5) 218-220, September - October, 2011 the birds with cyst ranged from 2.5 to 3.2 kgcompared to the birds with out cyst (1.5 to 2.0 kg).the entire abdominal cavity. The wall of the cystopaque and watery. The quantity varied from 20 toto death. the observations made in this study are inagreement with earlier reports of Dietrich et al. (1999)and Crespo and Shivaprasad, (2003).Microscopicaaly, the wall of the cyst was lined bylayer.in most birds, paired paramesonephric (Mullerian)the expression of AntiMullerian hormone (AMH)expression of ovarian AMH and develops into theundergoes a relatively slow involution after day 12vestige remains attached to the cloacae. At layingestrogen. An interaction of this increased estrogenwere homozygous for the recessive (ro+) usuallyBatra, G.L and Singh. B. (1978). A note on thedomestic fowl in Punjab. Indian J. Anim. Sci.,Poultry. 11th edn, Y.M.Saif, H.J. Barnes, J.R.Barnes, J.R. Glisson, A.M. Fadly, L.R.University Press, Ames, Iowa.Genetics. 3rd edn. Elsevier, Amestrerdam,Dietrich. H.M., Cole R.K and Wick , C. (1999). ALuna. L.G. (1968). Manual of Histological StainingMethods of the Armed Forces Institute ofPathology, 3rd edn, McGrawHill, USA.Tamilnadu J. Veterinary & Animal Sciences 7 (5) 218-220, September - October, 2011 Srinivasan and Balasubramaniam 220 Fluid filled cystic right oviduct, appearing as a large blind sac and attached to the cloacaeTamilnadu J. Veterinary & Animal Sciences 7 (5) 218-220, September - October, 2011 Cystic Dilatation of.....