production of meat and characteristics of lamb carcass non-castrated, castrated and induced to cryptorchidism /
produção de carne e caracteristicas da carcaça de cordeiros não castrados, castrados e induzidos ao criptorquidismo

Clicks: 165
ID: 130193
2010
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Abstract
The characteristics of lamb meat are influenced by a series of factors, among which the testicular hormone production. In order to estimate the influence on meat characteristics, 24 Suffolk, Ile de France, Santa Inês and Texel crossbred lambs male, in a completely casualised delineation, with three treatments and eight repetitions. All animals were managed in the same way, pasture-raised and fed on native grass, in a Voisin system. The experiment treatments were constituted of non-castrated, castrated and cryptorchid animals. Live weight measurements were recorded at birth, once a month to assess body development and before slaughter. The warm carcass weight at slaughter and the 24 hours post-slaughter weight of the carcass cooled in refrigeration chamber at 5ºC were recorded. Also, the weights of the variables related to the carcass were obtained. The results were analyzed using GLM Procedure and the means compared by Tukey’s test at the 5% significance level. No differences in production were found in the components and in the characteristics of the ovine meat and carcass of non-castrated, castrated and cryptorchid lambs raised on pasture land, fed on native grass and slaughtered young.

As características da carne de cordeiro são influenciadas por uma série de fatores, entre os quais a produção hormonal a nível testicular. Para estimar a influência sobre a produção e as características da carne, foram utilizados 24 cordeiros machos cruzas entre as raças Suffolk, Ile de France, Santa Inês e Texel em um delineamento completamente casualizado com três tratamentos e oito repetições. Todos os animais foram submetidos ao mesmo manejo e criados sobre pastagens de campo nativo em um sistema Voisin. Os tratamentos foram constituídos de animais não castrados, castrados e induzidos ao criptorquidismo. O peso vivo foi obtido ao nascimento e posteriormente, uma vez por mês para o controle do desenvolvimento corporal, e antes do abate. Após o abate foi tomado o peso da carcaça quente e 24 horas após, o peso da carcaça resfriada em câmara fria a 5ºC. Também foram obtidos os pesos das variáveis relacionadas à carcaça. Os resultados foram analisados através do GLM Procedure e as médias comparadas através do Teste de Tukey a 5% de significância. Não houve diferenças na produção, nos componentes e nas características da carne e da carcaça ovina produzidas por cordeiros não castrados, castrados e induzidos ao criptorquidismo criados em condições de pastagem nativa e abatidos jovens.

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rocha2010semina:production Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Filipe dos Santos Rocha;Rogério dos Passos Nadal;Dileta Cecchetti;Leandro Oliveira da Costa;Rafael Streinstrasser Fonseca;Maria Isabel Botelho Vieira;Hélio Carlos Rocha
Journal frontiers in neuroendocrinology
Year 2010
DOI
10.5433/1679-0359.2010v31n3p783
URL
http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/6522
Keywords Keywords not found

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