Microstructure of the hoof capsule of pigmented and partial albino buffaloes.

Autor: Assis BM; Faculdade Una - Unidade Jataí, Jataí, Brazil., Queiroz PJB; Universidade Federal de Goiás (UFG), Escola de Veterinária e Zootecnia (EVZ), Goiânia, Brazil., de Oliveira Lima CR; Universidade Estadual de Goiás (UEG), Jataí, Brazil., Vulcani VAS; Universidade Federal de Jataí (UFJ), Jataí, Brazil., Rabelo RE; Aprimory Vet - Cursos e Consultoria, Jataí, Brazil., da Silva LAF; Universidade Federal de Goiás (UFG), Escola de Veterinária e Zootecnia (EVZ), Goiânia, Brazil.
Jazyk: angličtina
Zdroj: Anatomia, histologia, embryologia [Anat Histol Embryol] 2022 Jul; Vol. 51 (4), pp. 435-442. Date of Electronic Publication: 2022 Apr 29.
DOI: 10.1111/ahe.12805
Abstrakt: In this study, atomic force microscopy (AFM), microtomography (MCT-2D and MCT-3D) and energy-dispersive X-ray fluorescence spectrometry (EDXRF) were used to generate parameters of the microstructure of the hoof capsule of pigmented and partial albino buffaloes. Seventy-two digits of adult pigmented buffaloes and 16 of partial albino buffaloes were used and equally divided into thoracic and pelvic limbs and medial and lateral claws. Fragments of 10 mm × 10 mm of the dorsal wall, abaxial wall and pre-bulbar sole were collected. The parametric assumptions were tested using a Shapiro-Wilk test (normality). The independent t-test was used to compare the means at a 5% significance level. AFM demonstrated that the hoof surface of pigmented buffaloes presented with higher average surface roughness (Ra) and root mean square roughness (Rms) (p < 0.05) than the hoof surface of partial albino buffaloes. MCT-2D revealed that pigmented buffaloes had extra tubular keratin with a higher density than intratubular keratin. No pores were observed in the hoof capsule of the buffalo digits. MCT-3D demonstrated that pigmented buffaloes have a higher percentage of large and intermediate horn tubules than partial albino buffaloes. However, this difference was not statistically significant. Partial albino buffaloes showed a statistically higher number of horn tubules/mm 2 than pigmented buffaloes (p < 0.05). EDXRF revealed a higher amount of sulphur (S) in the hoof capsule of pigmented buffaloes, and the partial albino buffaloes presented a higher number of minerals such as calcium (Ca), potassium (K), zinc (Zn) and copper (Cu).
(© 2022 Wiley-VCH GmbH.)
Databáze: MEDLINE
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