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<p>The impact of road transportation stress is raising a lot of welfare concerns among consumers. Dark cutting and poor meat appearances have been reported in the meat of animals exposed to transportation stress just before slaughter. Data on the effects of oxidative stress responses in transported cattle during rainy conditions are lacking. The aim of the study was to determine the effect of 15-h transportation through tarred and untarred roads on haematological and oxidative responses of cattle during the rainy season. Haematological parameters (packed cell volume (PCV), haemoglobin concentration (Hb), red blood cell (RBC), white blood cell (WBC), neutrophil, lymphocyte, monocyte, basophil, eosinophil and neutrophil lymphocyte ratio (N/L), erythrocyte osmotic fragility (EOF)) and markers of oxidative stress (acetylcholinesterase (AchE), superoxide dismutase (SOD), glutathioneS-transferase (GST), glutathione peroxidase (GPx), nitric oxide (NO), malondialdehyde (MDA), total protein (TP), hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>), glutathione (GSH)) were measured in thirty cattle in 3 separate groups of 10 animals each. Group A consisted of cattle (transported) transported for 15-h from the north to the southern part of Nigeria, and samples were collected 30 min after transportation. Group B consisted of cattle (recovered) transported for 15-h from the same location but had rested at least 3 days after the journey before sample collection. Group C cattle (control) were not transported. Environmental parameters (dry-bulb temperature (DBT), relative humidity (RH) and temperature-humidity Index (THI)) were measured concurrently during the sample collection. Though the DBT value (25.95 ± 1.3 ℃) was within the established thermoneutral zone for cattle in the tropics, some of the transported cattle were observed shivering. The RBC, neutrophil, lymphocyte, N/L, and EOF were significantly (<i>p</i> &lt; 0.05) altered in transported cattle compared to the recovered and the control cattle. The findings of the study indicated that the transported cattle were exposed to both environmental and transportation stresses as shown by decreased lymphocyte count, increased neutrophil count, EOF, N/L ratio, and H<sub>2</sub>O<sub>2</sub> generated. The study also showed that resting transported cattle for at least 3 days before slaughter decreased the oxidative stress level in the animals.</p>

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Effects of 15-h road transportation on the haematological, erythrocyte osmotic fragility, and oxidative stress responses of cattle during the rainy season

  • 期刊论文

  • 发表日期：

    2025年6月7日

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  • Ayodele Stephen Ake,
  • Deborah Pelumi Ishola,
  • Odunayo Ibraheem Azeez,
  • Adewumi Victoria Adeogun,
  • Ademola Adetokunbo Oyagbemi,
  • Samson Olalekan Agboola,
  • Elizabeth Oluwayemi Olaoye,
  • Temidayo Olutayo Omobowale

摘要

The impact of road transportation stress is raising a lot of welfare concerns among consumers. Dark cutting and poor meat appearances have been reported in the meat of animals exposed to transportation stress just before slaughter. Data on the effects of oxidative stress responses in transported cattle during rainy conditions are lacking. The aim of the study was to determine the effect of 15-h transportation through tarred and untarred roads on haematological and oxidative responses of cattle during the rainy season. Haematological parameters (packed cell volume (PCV), haemoglobin concentration (Hb), red blood cell (RBC), white blood cell (WBC), neutrophil, lymphocyte, monocyte, basophil, eosinophil and neutrophil lymphocyte ratio (N/L), erythrocyte osmotic fragility (EOF)) and markers of oxidative stress (acetylcholinesterase (AchE), superoxide dismutase (SOD), glutathioneS-transferase (GST), glutathione peroxidase (GPx), nitric oxide (NO), malondialdehyde (MDA), total protein (TP), hydrogen peroxide (H2O2), glutathione (GSH)) were measured in thirty cattle in 3 separate groups of 10 animals each. Group A consisted of cattle (transported) transported for 15-h from the north to the southern part of Nigeria, and samples were collected 30 min after transportation. Group B consisted of cattle (recovered) transported for 15-h from the same location but had rested at least 3 days after the journey before sample collection. Group C cattle (control) were not transported. Environmental parameters (dry-bulb temperature (DBT), relative humidity (RH) and temperature-humidity Index (THI)) were measured concurrently during the sample collection. Though the DBT value (25.95 ± 1.3 ℃) was within the established thermoneutral zone for cattle in the tropics, some of the transported cattle were observed shivering. The RBC, neutrophil, lymphocyte, N/L, and EOF were significantly (p < 0.05) altered in transported cattle compared to the recovered and the control cattle. The findings of the study indicated that the transported cattle were exposed to both environmental and transportation stresses as shown by decreased lymphocyte count, increased neutrophil count, EOF, N/L ratio, and H2O2 generated. The study also showed that resting transported cattle for at least 3 days before slaughter decreased the oxidative stress level in the animals.