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OJVRTM

Online Journal of Veterinary Research©

Volume 20(2):75-81, 2016.

 

Ultrastructure of foot coronary corium in Nelore cattle.

 

Luiz Antônio Franco da Silva DVM, PhD1*, Marcelo Emílio Belett DVM, PhD2, Duvaldo Eurides2, Rogério Elias Rabelo DVM3, Sabrina Lucas Ribeiro de Freitas MSc4,  Paulo José Bastos Queiroz5, Jéssica Alves da Silva5

  

1Escolas de Veterinária e Zootecnia, Universidade Federal de Goiás, ,5Rodovia Goiânia – Nova Veneza, Goiás, 2Faculdade de Medicina Veterinária, Universidade Federal de Uberlândia, 3Universidade Federal de Goiás, Campus Jataí, 4Instituto Federal Goiano, Campus Urutaí, Goiás, Brazil

 

ABSTRACT


Franco da Silva LA, Belett ME, Eurides D, Rabelo RE, Ribeiro de Freitas SL, Bastos Queiroz PJ,  Alves da Silva J., Ultrastructure of foot coronary corium in Nelore cattle, Onl J Vet Res., 20(2):75-81, 2016. Nelore cattle are known to have a low incidence of foot diseases even under extensive raising conditions. We describe transmission electron microscopy (TEM) of the coronary band structures of the hoof from 15 intensively grazed Nelore cattle. Samples of three 1mm coronary bands were excised after slaughter. TEM and photographic analysis was performed with image capture MegaaviewG2 and Olympus Soft Imaging Solutions. Ultrastructural analysis identified keratinocytes, desmosomes and tono-filaments in the coronary band. Findings suggested that the method could reveal ultrastructural differences in hooves of different breeds or species. However, delays in processing time induced brittleness of the coronary band and the shell affecting sampling.

Key words: Bovine, hoof, electron microscopy, keratin, Nelore breed.

 

 

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