Morphology and morphometry of buffalo mammary papillae

Diogo A.S. Santos Rose E.G. Ricci Isaura M.M. Prado Ana F. Carvalho Pedro P. Bombonato Carlos E. Ambrósio Dulcinea G. Teixeira Tatiana C. Santos Francisco J. Hernandes-Brazquez Daniele S. Martins Adriana C. Morini José R. Kfoury Jr Maria Angélica Miglino About the authors

Fifteen papillae from female water buffaloes and one bovine female were obtained in a slaughter house for this study, which consisted in morphologic and biometrical analyses, histology and histometric and mesoscopical analyses. The means were: right cranial papilla (RCP) 20.95g; right caudal papilla (RCaP) 21.49g; left cranial papilla (LCP) 23.52g; and left caudal papilla (LCaP) 21.35g. Papillary duct average length, numbers of folds and papillary cisterns length were, respectively: 0.67/5,5 e 2.17cm for RCP; 0.62/6.0 e 2.26cm for RCaP; and for the left antimere: RCP: 0.71/6.0 e 2.26cm and for RCaP: 0.74/5.7 e 2.57cm. Pearson's analysis revealed negative correlation between body weight and mammary glandular weight. Sampling of proximal, middle and distal area was taken and fixed into a 10% formaldehyde solution, followed by mesoscopical investigation through 10, 20 and 40µm thickness cuts stained by Azan, F3BA Picrosirus and Weigert-Van Gieson techniques. Histological and morphometric analyses were applied on 5µm thick samples and showed that the muscular layer was disposed into two arrangements, internal circular and external longitudinal with a bi-stratified cuboidal epithelium. A well developed muscular layer were related to the middle portion revealing thickness of 22.90mm with a great amount of connective tissue (7.10mm).

Buffaloes; mammary papilla; morphometry; morphology; Buballus bubalis

Colégio Brasileiro de Patologia Animal - CBPA Pesquisa Veterinária Brasileira, Caixa Postal 74.591, 23890-000 Rio de Janeiro, RJ, Brasil, Tel./Fax: (55 21) 2682-1081 - Rio de Janeiro - RJ - Brazil