Liver metabolic and histopathological profile in finishing lambs fed licuri (Syagrus coronata(Mart.)Becc.) cake

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• 作者：Jonival Barreto Costa ; Ronaldo Lopes Oliveira…
• 关键词：By ; product ; Hepatic ; Hepatopathy ; Histopathology ; Sheep
• 刊名：Tropical Animal Health and Production
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：48
• 期：3
• 页码：501-507
• 全文大小：284 KB
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• 作者单位：Jonival Barreto Costa (1)
  Ronaldo Lopes Oliveira (1)
  Thadeu Mariniello Silva (1)
  Maria Consuêlo Caribé Ayres (1)
  Alessandra Estrela-Lima (1)
  Silvana Texeira Carvalho (1)
  Rebeca Dantas Xavier Ribeiro (1)
  Géssica Ariane Melo de Cruz (1)
  
  1. Department of Animal Science, School of Veterinary Medicine and Animal Science/Federal University of Bahia, 41170110, Salvador, Bahia, Brazil
  
• 刊物类别：Medicine
• 刊物主题：Medicine & Public Health
  Veterinary medicine
  Zoology
  
• 出版者：Springer Netherlands
• ISSN：1573-7438

文摘

The objective of this study was to determine the impact of including licuri cake in the diet of Santa Inês crossbred finishing lambs by examining their liver metabolic and histopathological profile. Forty-four uncastrated lambs with an average age of 6 months and an average weight of 21.2 kg ± 2.7 kg. The animals were fed diets with 40 % Tifton 85 hay and 60 % of a mixture consisting of corn and soybean meal, 1 % urea, a mineral-vitamin premix, and an inclusion of licuri cake at a level of 0, 8, 16, and 24 % of the dietary dry matter (DM), which composed the treatments. The experimental design was completely randomized, and the data were analyzed by variance and regression analyses. The animals were confined in individual stalls for 70 days. Blood was collected on the last day of the experimental period, and metabolite, protein, energy, and enzyme profiles of the liver were determined for these samples. Histopathological evaluations of the liver parenchyma were also undertaken. The increase in the level of the licuri cake in the diet caused a linear increase (P < 0.05) in the serum urea content. The protein metabolism was not affected by the licuri cake inclusion levels in the diet. Regarding energy metabolism, a linear increase (P < 0.01) was observed in the serum triglyceride concentrations, but there were no effects on serum cholesterol levels. Regarding the functioning of the liver and muscle, the inclusion of the licuri cake had no effect on the enzymatic activities, except on gamma-glutamyltransferase, which decreased linearly (P < 0.05). The values found for the evaluated parameters varied within a range considered normal for this species. In the postmortem examination at slaughter, no macroscopic alterations in the liver were observed. Histopathological analysis revealed the presence of discrete and nonspecific alterations common to all treatments, suggesting no effect of the level of inclusion of the licuri cake. The use of the licuri cake in composing up to 24 % of the diet did not cause metabolic or liver disorders in the lambs.