Composição química dos cascos de eqüinos das raças Pantaneira e Mangalarga Marchador

Abstract

RESUMOPesquisaram-se eventuais diferenças na composição da matéria seca (MS), proteína bruta, extrato etéreo, cinzas, cálcio, fósforo, cobre, zinco, perfil de aminoácidos e biotina entre cascos pretos e claros, de eqüinos das raças Pantaneira e Mangalarga Marchador, criados na região do Pantanal, MS, e no município de Caeté, MG, respectivamente. De cada raça foram coletadas amostras de 10 éguas vazias, não lactantes, com idade entre 5 e 10 anos, sendo que, em um mesmo animal, foram retiradas amostras das duas colorações de casco nas regiões da pinça, ombro, quarto e talão. Na raça Pantaneira, os cascos claros apresentaram maior teor de fósforo que os pretos, e os demais elementos avaliados não foram diferentes segundo a cor. Na Mangalarga Marchador, não houve diferença entre os cascos claros e pretos, quanto a todas as características estudadas.Palavras-chave: eqüino, casco, coloração do casco, proteína, aminoácido, biotina, minerais Chemical composition (dry matter, crude protein, ether extract, ash, calcium, phosphorus, copper and zinc and amino acid profile) ABSTRACT in black and non-pigmented hooves from non-lactating five-to ten-year-old Pantaneira and Mangalarga Marchador mares raised in central and southeastern Brazil was studied. In the Pantaneira breed, phosphorus concentration was higher in non-pigmented than in black hooves, but hoof color did not affect any other composition variables. Likewise, black versus non-pigmented hooves did not differ for any composition variable in the Mangalarga

Preliminary studies on hoof characteristics in Amiata donkey

“…The ashes content was comparable with the hoof ashes content of Anglo-Arabian, Haflinger and Maremmano (Tocci et al, 2010) and lower if compared with Monterufoli pony hoof, that showed percentage values of 1.6 (Tocci et al, 2010) and with Mangalarga Marchador and Pantaneiro hoof that showed on average 1.9 and 2.1, respectively (Faria et al, 2005).…”

“…Nail samples from wall and sole were taken. These samples, were accurately cleaned (Faria et al, 2005) and subjected to chemical analysis and mineralogram. The nail samples were submitted to pre-drying (60°/24 h), followed by the moisture recovery (24 h).…”

Biochemical composition of the hoof capsule of buffaloes and its influence on hoof quality

“…No information about this element in cattle hooves was found in the literature (Mulling et al,1999;Faria et al, 2005;Basurto et al, 2008;Muelling, 2009); hence, it can be inferred that the concentrations of copper (Cu) found in the buffalo hooves of this study can be used as a biochemical parameter for comparisons with other ruminants. The notion that Cu is important to hoof quality is reinforced by studies conducted by Hoblet and Weiss (2001) and Lana (2007), who reported that this element is active in different physiological processes such as the synthesis of melanin and the formation of sulfhydryl groups, among them methionine, cysteine and cystine, which increase the hoof's strength.…”

“…This finding is corroborated by the fact that lower levels of phosphorus were identified in the medial digits of these limbs, which bear a greater portion of the animal's weight, according to Schaller (1999) and Campos (2012). However, Faria et al (2005) found a higher concentration of MM, particularly phosphorus, in the hooves of Pantaneiro horses than in those of Mangalarga Machador horses, and suggested that this could influence the quality and strength of the hoof, although they did not explain whether their analysis involved the fore or hind limbs. This indicates that there are different interpretations of the subject and explains the importance of this study.…”

“…(1997), Nascimento (1999) and Faria et al (2005), revealed that pigmentation did not have a significant effect on the biochemical concentrations in the samples.…”