Parámetros bioquímicos y hematológicos en ovinos de pelo con y sin sombra bajo condiciones desérticas

• Autores: Arnulfo Vicente-Pérez, Leonel Avendaño Reyes, Rubén Barajas Cruz, Ulises Macías Cruz, Abelardo Correa Calderón, Ricardo Vicente Pérez, José Luis Corrales-Navarro, Juan Eulogio Guerra-Liera
• Localización: Ecosistemas y Recursos Agropecuarios, ISSN-e 2007-901X, ISSN 2007-9028, Vol. 5, Nº. 14, 2018, págs. 259-269
• Idioma: español
• DOI: 10.19136/era.a5nl4.1544
• Títulos paralelos:
  • Biochemical and hematological parameters in hair sheep with and without shade under desert conditions
• Enlaces
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• Dialnet Métricas: 2 Citas
• Resumen
  • español

    El objetivo del estudio fue determinar el efecto del uso de sombra en corderas de pelo bajo condiciones de estrés calórico sobre parámetros bioquímicos y hematológicos. Veinte corderas de pelo de cruza Dorper x Pelibuey fueron asignadas de forma aleatoria a uno de dos tratamientos: 1) corderas en corraletas individuales cubiertas con sombra (CS, n=10); y 2) corderas en corraletas individuales sin acceso a sombra (SS, n=10). Se tomaron muestras de sangre por punción de la vena yugular, la colecta se realizó durante la mañana (6:00 h), cada tercer día durante los 16 d del estudio. Los parámetros hematológicos se determinaron en muestras de sangre fresca, mientras que los metabolitos y electrolitos se determinaron en muestras de suero. Los datos se analizaron con un diseño de bloques al azar. Las corderas CS presentaron menor (p < 0.05) concentración de colesterol y triglicéridos que las corderas SS. Las concentraciones de K y Cl fueron mayores (p < 0.05) para el grupo SS en relación con el grupo CS. Las corderas CS presentaron mayor (p < 0.05) concentración de plaquetocrito, volumen corpuscular medio, hemoglobina corpuscular media y ancho de distribución eritrocitaria, pero menor concentración de hemoglobina en relación a corderas SS. Los resultados muestran que los ovinos de pelo tienen capacidad de adaptación a altas temperaturas, ya que dado el tiempo de exposición al calor, no se observaron cambios importantes en los componentes hematológicos y bioquímicos.

  • English

    The aim of this study was to determine the effect of shade use on the biochemical and hematological parameters in hair ewe lambs kept under conditions of caloric stress. Twenty Dorper x Pelibuey cross hair ewe lambs were randomly assigned to one of two treatments: 1) ewe lambs in individual shaded pens (WS, n = 10); and 2) ewe lambs in individual pens without access to shade (NS, n = 10). Blood samples were taken by puncturing the jugular vein. The collection was made during the morning (6:00 h), every third day during the 16-d study. The hematological parameters were determined in fresh blood samples, while the metabolites and electrolytes were determined in serum samples. The data were analyzed with a randomized block design. WS ewe lambs had a lower (p < 0.05) concentration of cholesterol and triglycerides than the NS ewe lambs. The K and Cl concentrations were higher (p < 0.05) for the NS group than the WS group. WS ewe lambs showed a higher (p < 0.05) platelet concentration, mean corpuscular volume, mean corpuscular hemoglobin and erythrocyte distribution width, but lower hemoglobin concentration in relation to NS ewe lambs. The results show that hair sheep have the ability to adapt to high temperatures, since no significant changes were observed in their hematological and biochemical components as a result of their exposure time to heat.

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