Effects of long distance transportation and CO2 stunning on critical blood values in pigs |
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| Authors: | Mota-Rojas D Becerril-Herrera M Roldan-Santiago P Alonso-Spilsbury M Flores-Peinado S Ramírez-Necoechea R Ramírez-Telles J A Mora-Medina P Pérez M Molina E Soní E Trujillo-Ortega M E |
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| Affiliation: | a Universidad Autónoma Metropolitana, Campus Xochimilco, Stress Physiology and Farm Animal Welfare, Department of Animal Production and Agriculture, Calzada del Hueso 1100, Col. Villa Quietud, 04960, México, D.F., Mexicob Benemérita Universidad Autónoma de Puebla, PE Ingeniería Agronómica y Zootecnia, Reforma 165, Col. Centro Tlatlauquitepec, 73800 Puebla, Mexicoc Department of Livestock Sciences, Universidad Nacional Autónoma de México (UNAM), Facultad de Estudios Superiores Cuautitlán (FESC), Cuautitlán Izcalli, Estado de México, 54714, Mexicod Universidad Autónoma de San Luis Potosí. Facultad de Ciencias Químicas, Av. Dr. Manuel Nava No. 6. Zona Universitaria, San Luis Potosí, S.L.P. C.P. 78210. Mexicoe Universidad Complutense de Madrid, Magíster en Etología Clínica y Bienestar Animal, Avda. Puerta de Hierro s/n, s/n. Ciudad Universitaria. 28040, Madrid, Spainf Universidad Nacional Autónoma de México, Facultad de Medicina Veterinaria y Zootecnia, Ciudad Universitaria, Circuito exterior, México, DF 04510, Mexico |
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| Abstract: | The aim of the study was to evaluate the effect of two stressful stimuli, long transportation and 80% CO2 stunning on metabolic-physiological variables, hemodynamic and gas exchange in slaughter pigs imported from the U.S. to Mexico City with a journey time of 27 h, with 8 h of lairage at the abattoir. A total of 589 pigs from three genders were monitored. Overall results show that both stimuli caused metabolic and physiological disturbance. Gilts were more efficient in controlling glycemia after a long transport journey (24 h), than castrated males (P < 0.05), whose glucose was increased above the 30 mg/dL basal level. Females on arrival had 23 mg/dL more lactate compared to basal levels (P < 0.05). Stunning caused more physiological effects compared to transportation. Regarding the gender factor, females and entire males were more susceptible to transport stress and stunning compared to the castrated pigs, and entire males showed more complications restoring the gas exchange compared to females and barrows. |
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| Keywords: | Transport CO2 stunning Animal welfare Blood variables Pigs |
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