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Abstract
Infrared thermography analyzes changes in the surface temperature of the skin and has been used in companion animals to identify inflammatory processes, neoplasia, pain, and neuropathies. This study evaluated and compared surgical wound surface temperatures in Nigerian Indigenous Dogs (NID). Nigerian indigenous dogs are a medium-sized breed that weighs between 8 to 30 kg with moderate hair length, and a mesocephalic cranial index. The dogs were randomly allocated into groups A, B, and C for castration, otectomy, and gastrotomy, respectively. The wound surface temperature (WST) in the NID that underwent gastrotomy were significantly higher particularly at 18-48 h compared with Pre and other sampling periods within the group. It was also found that, at 0 h versus 48 h, 18 h versus 48 h, week 1 versus 18h; 24h; 48h; and 72h showed significant (p < 0.05) differences among NID subjected to gastrotomy (group C). However, the WST of NID subjected to castration and otectomy were significantly higher than that of gastrotomy. At 48 and 72 h, and week 1, the WST of NID in otectomy also known as ear cropping (group B) and castration (group A) were significantly (p < 0.05) higher than that of gastrotomy (Group C). Thermography of the surgical wounds aided postoperative wound management in the NID that underwent castration, otectomy and gastrotomy. Hence, the study suggests that guided WST with the aid of infrared thermography could be deployed as a useful tool to aid post operative wound management.
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References
- Arruda, T. Z., Brass, K. E. and Flavio, D. (2011). Thermographic assessment of saddles used on jumping horses. Journal of Equine Veterinary Science, 31 (11): 625-629 DOI: http://dx.doi.org/10.1016/j.jevs.2011.05.011.
- Bailey, C., Kitchell, R., Haghighi, S. and Johnson, R. (1984). Cutaneous innervation of the thorax and abdomen of the dog. American Journal of Veterinary Research, 45 (9): 1689-1698.
- Bappah, M., Awasum, C., Chom, N., Lawal, M., Bada, A., Ochube, G., Umar, M., Hassan, A. and Hassan, F. (2019a). Relationship between ultrasonographic kidney bipolar length and body weight in normal Nigerian indigenous dogs. Savannah Veterinary Journal, 2 (2): 24-28 DOI: 10.36759/svj.2019.037.
- Bappah, M., Awasum, C., Chom, N., Lawal, M., Bello, U., Bada, A., Idris, S. and Ochube, G. (2019b). Correlation of ultrasonographic renal volume with modified body mass index in Nigerian indigenous dogs. Sokoto Journal of Veterinary Sciences, 17 (3): 9-16. DOI: 10.4314/sokjvs.v17i3.2.
- Biondi, F., Dornbusch, P. T., Sampaio, M. and Montiani‐Ferreira, F. (2015). Infrared ocular thermography in dogs with and without keratoconjunctivitis sicca. Veterinary Ophthalmology, 18 (1): 28-34 DOI: http://dx.doi.org/10.1111/vop.12086.
- Brunn, A. (2022). Surgical castration in dogs: does the incision approach influence postoperative recovery? Veterinary Evidence, 7 (4): DOI: doi.org/10.18849/ve.v7i4.587.
- Busch, T. (1983). Canine ear cropping. New Zealand Veterinary Journal, 31 (11): DOI: doi.org/10.1080/00480169.1983.35032.
- Cilulko, J., Janiszewski, P., Bogdaszewski, M. and Szczygielska, E. (2013). Infrared thermal imaging in studies of wild animals. European Journal of Wildlife Research, 59 (1): 17-23 DOI: http://dx.doi.org/10.1007/s10344-012-0688-1.
- Cole, L. K. (2009). Anatomy and physiology of the canine ear. Veterinary Dermatology, 20 (5‐6): 412-421 DOI: http://dx.doi.org/10.1111/j.1365-3164.2009.00849.x.
- Cusack, B. and Buggy, D. (2020). Anaesthesia, analgesia, and the surgical stress response. BJA education, 20 (9): 321 DOI: http://dx.doi.org/10.1016/j.bjae.2020.04.006.
- Dai, F., Cogi, N. H., Heinzl, E. U. L., Dalla Costa, E., Canali, E. and Minero, M. (2015). Validation of a fear test in sport horses using infrared thermography. Journal of Veterinary Behavior, 10 (2): 128-136 DOI: http://dx.doi.org/10.1016/j.jveb.2014.12.001.
- Dewitt, S., Chavez, S. A., Perkins, J., Long, B. and Koyfman, A. (2017). Evaluation of fever in the emergency department. The American Journal of Emergency Medicine, 35 (11): 1755-1758 DOI: doi.org/10.1016/j.ajem.2017.08.030.
- Eugster, S., Schawalder, P., Gaschen, F. and Boerlin, P. (2004). A prospective study of postoperative surgical site infections in dogs and cats. Veterinary surgery, 33 (5): 542-550 DOI: doi.org/10.1111/j.1532-950X.2004.04076.x.
- Fonseca, B., Alves, A. L. G., Nicoletti, J., Thomassian, A., Hussni, C. A. and Mikail, S. (2006). Thermography and ultrasonography in back pain diagnosis of equine athletes. Journal of Equine Veterinary Science, 26 (11): 507-516 DOI: http://dx.doi.org/10.1016/j.jevs.2006.09.007.
- Garcia, R. A. and Sajjad, H. (2019). Anatomy, abdomen and pelvis, scrotum. In: StatPearls [Internet]. Treasure Island (FL) [Online]. [Accessed 2022 Jan–2022 Jul 25].
- Gethin, G., Ivory, J. D., Sezgin, D., Muller, H., O'connor, G. and Vellinga, A. (2021). What is the “normal” wound bed temperature? A scoping review and new hypothesis. Wound Repair Regeneration, 29 (5): 843-847 DOI: http://dx.doi.org/10.1111/wrr.12930.
- Grossbard, B. P., Loughin, C. A., Marino, D. J., Marino, L. J., Sackman, J., Umbaugh, S. E., Solt, P. S., Afruz, J., Leando, P. and Lesser, M. L. (2014). Medical infrared imaging (thermography) of type I thoracolumbar disk disease in chondrodystrophic dogs. Veterinary Surgery, 43 (7): 869-876 DOI: http://dx.doi.org/10.1111/j.1532-950X.2014.12239.x.
- Kanitakis, J. (2002). Anatomy, histology and immunohistochemistry of normal human skin. European Journal of Dermatology 12 (4): 390-399 DOI: 12095893.
- Levet, T., Martens, A., Devisscher, L., Duchateau, L., Bogaert, L. andVlaminck, L. (2009). Distal limb cast sores in horses: risk factors and early detection using thermography. Equine Veterinary Journal, 41 (1): 18-23 DOI: http://dx.doi.org/10.2746/042516408X343046.
- Lin, Y.H., Chen, Y.C., Cheng, K.S., Yu, P.J., Wang, J.L. and Ko, N.Y. (2021). Higher periwound temperature associated with wound healing of pressure ulcers detected by infrared thermography. Journal of Clinical Medicine, 10 (13): 2883.
- Marino, D. J. (2011). Medical infrared imaging (thermography) in veterinary neurology. American College of Veterinary Surgeons, Chicago, Chicago. 244-245.
- Matera, A., PezzuttiHolzchuh, M., Spicciati, W. and Elias Randi, R. (1989). Simplified surgical technique of ear cropping. Brazilian journal of veterinary research and animal science, 26 (2): 213-221 DOI: vti-726949.
- Mccafferty, D., Gilbert, C., Paterson, W., Pomeroy, P., Thompson, D., Currie, J. and Ancel, A. (2011). Estimating metabolic heat loss in birds and mammals by combining infrared thermography with biophysical modelling. Comparative Biochemistry Physiology Part A: Molecular Integrative Physiology, 158 (3): 337-345 DOI: http://dx.doi.org/10.1016/j.cbpa.2010.09.012.
- Mccafferty, D. J., Currie, J. and Sparling, C. E. (2007). The effect of instrument attachment on the surface temperature of juvenile grey seals (Halichoerus grypus) as measured by infrared thermography. Deep Sea Research Part II: Topical Studies in Oceanography, 54 (3-4): 424-436 DOI: http://dx.doi.org/10.1016/j.dsr2.2006.11.019.
- Meola, C. and Carlomagno, G. M. (2004). Recent advances in the use of infrared thermography. Measurement science technology, 15 (9): R27 DOI: http://dx.doi.org/10.1088/0957-0233/15/9/R01.
- Pavelski, M., Silva, D., Leite, N., Junior, D., De Sousa, R., Guérios, S. andDornbusch, P. (2015). Infrared T hermography in Dogs with Mammary Tumors and Healthy Dogs. Journal of veterinary internal medicine, 29 (6): 1578-1583 DOI: https://doi.org/10.1111/jvim.13597.
- Pets - Nairaland, F. (2023). All About the Nigerian Shepherd Dog (Ekuke, Nkita) [Online]. Nigeria: Nairaland. Available: https://www.nairaland.com/4747625/all-nigerian-shepherd-dog-ekuke [Accessed 24/03/2023 2023].
- Rainwater-Lovett, K., Pacheco, J. M., Packer, C. and Rodriguez, L. L. (2009). Detection of foot-and-mouth disease virus infected cattle using infrared thermography. The Veterinary Journal, 180 (3): 317-324 DOI: http://dx.doi.org/10.1016/j.tvjl.2008.01.003.
- Ramirez-Garcialuna, J. L., Rangel-Berridi, K., Bartlett, R., Fraser, R. D. and Martinez-Jimenez, M. A. (2022). Use of Infrared Thermal Imaging for Assessing Acute Inflammatory Changes: A Case Series. Cureus, 14 (9): DOI: 10.7759/cureus.28980.
- Redaelli, V., Bergero, D., Zucca, E., Ferrucci, F., Costa, L. N., Crosta, L. and Luzi, F. (2014). Use of thermography techniques in equines: principles and applications. Journal of Equine Veterinary Science, 34 (3): 345-350 DOI: http://dx.doi.org/10.1016/j.jevs.2013.07.007.
- Soroko, M., Henklewski, R., Filipowski, H. and Jodkowska, E. (2013). The effectiveness of thermographic analysis in equine orthopedics. Journal of equine veterinary science, 33 (9): 760-762 DOI: http://dx.doi.org/10.1016/j.jevs.2012.11.009.
- Stewart, M., Webster, J., Verkerk, G., Schaefer, A., Colyn, J. and Stafford, K. (2007). Non-invasive measurement of stress in dairy cows using infrared thermography. Physiology behaviour, 92 (3): 520-525 DOI: http://dx.doi.org/10.1016/j.physbeh.2007.04.034.
- Szpaderska, A. M. and Dipietro, L. A. (2005). Inflammation in surgical wound healing: friend or foe? Surgery, 137 (5): 571-573 DOI: doi.org/10.1016/j.surg.2005.01.006.
- Turner, T. A. (2001). Diagnostic thermography. Veterinary Clinics of North America: Equine Practice, 17 (1): 95-114.
- Vainionpää, M. (2014). Thermographic imaging in cats and dogs: usability as a clinical method. PhD Thesis, University of Helsinki.
- Vainionpää, M., Tienhaara, E.-P., Raekallio, M., Junnila, J., Snellman, M. and Vainio, O. (2012). Thermographic Imaging of the Superficial Temperature in Racing Greyhounds before and after the Race. The Scientific World Journal, 2012 DOI: http://dx.doi.org/10.1100/2012/182749.
- Vainionpää, M. H., Raekallio, M. R., Junnila, J. J., Hielm-Björkman, A. K., Snellman, M. P. and Vainio, O. M. (2013). A comparison of thermographic imaging, physical examination and modified questionnaire as an instrument to assess painful conditions in cats. Journal of Feline Medicine Surgery, 15 (2): 124-131 DOI: http://dx.doi.org/10.1177/1098612X12463926.
- Van Hoogmoed, L. M. and Snyder, J. R. (2002). Use of infrared thermography to detect injections and palmar digital neurectomy in horses. The Veterinary Journal, 164 (2): 129-141 DOI: http://dx.doi.org/10.1053/tvjl.2002.0719.
- Walters, T. J., Blick, D. W., Johnson, L. R., Adair, E. R. and Foster, K. R. (2000). Heating and pain sensation produced in human skin by millimeter waves: comparison to a simple thermal model. Health physics, 78 (3): 259-267 DOI: http://dx.doi.org/10.1097/00004032-200003000-00003.
- Wang, Z., Ying, Z., Bosy-Westphal, A., Zhang, J., Schautz, B., Later, W., Heymsfield, S. B. and Müller, M. (2010). Specific metabolic rates of major organs and tissues across adulthood: evaluation by mechanistic model of resting energy expenditure. The American journal of clinical nutrition, 92 (6): 1369-1377 DOI: 10.3945/ajcn.2010.29885.
- Webb, P. I., Speakman, J. R. and Racey, P. A. (1993). The implication of small reductions in body temperature for radiant and convective heat loss in resting endothermic brown long-eared bats (Plecotusauritus). Journal of thermal biology, 18 (3): 131-135.
- Whalen, L. and Kitchell, R. (1983). Electrophysiologic and behavioral studies of the cutaneous nerves of the concave surface of the pinna and the external ear canal of the dog. American Journal of Veterinary Research, 44 (4): 628-634.
- Willot, M. (1980). Otectomy (ear cropping) of Briard dogs. Point Veterinaire, 10 (48): 16-25 DOI: 19802259172.
- Woodruff, K., Rigdon-Brestle, K., Bushby, P., Wills, R. and Huston, C. (2015). Scrotal castration versus prescrotal castration in dogs. Veterinary Medicine, 110 (5): 131-135.
- Yoon, H. Y., Kang, M. G. and Jeong, S. W. (2009). Gastrotomy approach retrieval of esophageal foreign body using long forceps technique in five dogs. Journal of Veterinary Clinics, 26 (6): 628-631.
References
Arruda, T. Z., Brass, K. E. and Flavio, D. (2011). Thermographic assessment of saddles used on jumping horses. Journal of Equine Veterinary Science, 31 (11): 625-629 DOI: http://dx.doi.org/10.1016/j.jevs.2011.05.011.
Bailey, C., Kitchell, R., Haghighi, S. and Johnson, R. (1984). Cutaneous innervation of the thorax and abdomen of the dog. American Journal of Veterinary Research, 45 (9): 1689-1698.
Bappah, M., Awasum, C., Chom, N., Lawal, M., Bada, A., Ochube, G., Umar, M., Hassan, A. and Hassan, F. (2019a). Relationship between ultrasonographic kidney bipolar length and body weight in normal Nigerian indigenous dogs. Savannah Veterinary Journal, 2 (2): 24-28 DOI: 10.36759/svj.2019.037.
Bappah, M., Awasum, C., Chom, N., Lawal, M., Bello, U., Bada, A., Idris, S. and Ochube, G. (2019b). Correlation of ultrasonographic renal volume with modified body mass index in Nigerian indigenous dogs. Sokoto Journal of Veterinary Sciences, 17 (3): 9-16. DOI: 10.4314/sokjvs.v17i3.2.
Biondi, F., Dornbusch, P. T., Sampaio, M. and Montiani‐Ferreira, F. (2015). Infrared ocular thermography in dogs with and without keratoconjunctivitis sicca. Veterinary Ophthalmology, 18 (1): 28-34 DOI: http://dx.doi.org/10.1111/vop.12086.
Brunn, A. (2022). Surgical castration in dogs: does the incision approach influence postoperative recovery? Veterinary Evidence, 7 (4): DOI: doi.org/10.18849/ve.v7i4.587.
Busch, T. (1983). Canine ear cropping. New Zealand Veterinary Journal, 31 (11): DOI: doi.org/10.1080/00480169.1983.35032.
Cilulko, J., Janiszewski, P., Bogdaszewski, M. and Szczygielska, E. (2013). Infrared thermal imaging in studies of wild animals. European Journal of Wildlife Research, 59 (1): 17-23 DOI: http://dx.doi.org/10.1007/s10344-012-0688-1.
Cole, L. K. (2009). Anatomy and physiology of the canine ear. Veterinary Dermatology, 20 (5‐6): 412-421 DOI: http://dx.doi.org/10.1111/j.1365-3164.2009.00849.x.
Cusack, B. and Buggy, D. (2020). Anaesthesia, analgesia, and the surgical stress response. BJA education, 20 (9): 321 DOI: http://dx.doi.org/10.1016/j.bjae.2020.04.006.
Dai, F., Cogi, N. H., Heinzl, E. U. L., Dalla Costa, E., Canali, E. and Minero, M. (2015). Validation of a fear test in sport horses using infrared thermography. Journal of Veterinary Behavior, 10 (2): 128-136 DOI: http://dx.doi.org/10.1016/j.jveb.2014.12.001.
Dewitt, S., Chavez, S. A., Perkins, J., Long, B. and Koyfman, A. (2017). Evaluation of fever in the emergency department. The American Journal of Emergency Medicine, 35 (11): 1755-1758 DOI: doi.org/10.1016/j.ajem.2017.08.030.
Eugster, S., Schawalder, P., Gaschen, F. and Boerlin, P. (2004). A prospective study of postoperative surgical site infections in dogs and cats. Veterinary surgery, 33 (5): 542-550 DOI: doi.org/10.1111/j.1532-950X.2004.04076.x.
Fonseca, B., Alves, A. L. G., Nicoletti, J., Thomassian, A., Hussni, C. A. and Mikail, S. (2006). Thermography and ultrasonography in back pain diagnosis of equine athletes. Journal of Equine Veterinary Science, 26 (11): 507-516 DOI: http://dx.doi.org/10.1016/j.jevs.2006.09.007.
Garcia, R. A. and Sajjad, H. (2019). Anatomy, abdomen and pelvis, scrotum. In: StatPearls [Internet]. Treasure Island (FL) [Online]. [Accessed 2022 Jan–2022 Jul 25].
Gethin, G., Ivory, J. D., Sezgin, D., Muller, H., O'connor, G. and Vellinga, A. (2021). What is the “normal” wound bed temperature? A scoping review and new hypothesis. Wound Repair Regeneration, 29 (5): 843-847 DOI: http://dx.doi.org/10.1111/wrr.12930.
Grossbard, B. P., Loughin, C. A., Marino, D. J., Marino, L. J., Sackman, J., Umbaugh, S. E., Solt, P. S., Afruz, J., Leando, P. and Lesser, M. L. (2014). Medical infrared imaging (thermography) of type I thoracolumbar disk disease in chondrodystrophic dogs. Veterinary Surgery, 43 (7): 869-876 DOI: http://dx.doi.org/10.1111/j.1532-950X.2014.12239.x.
Kanitakis, J. (2002). Anatomy, histology and immunohistochemistry of normal human skin. European Journal of Dermatology 12 (4): 390-399 DOI: 12095893.
Levet, T., Martens, A., Devisscher, L., Duchateau, L., Bogaert, L. andVlaminck, L. (2009). Distal limb cast sores in horses: risk factors and early detection using thermography. Equine Veterinary Journal, 41 (1): 18-23 DOI: http://dx.doi.org/10.2746/042516408X343046.
Lin, Y.H., Chen, Y.C., Cheng, K.S., Yu, P.J., Wang, J.L. and Ko, N.Y. (2021). Higher periwound temperature associated with wound healing of pressure ulcers detected by infrared thermography. Journal of Clinical Medicine, 10 (13): 2883.
Marino, D. J. (2011). Medical infrared imaging (thermography) in veterinary neurology. American College of Veterinary Surgeons, Chicago, Chicago. 244-245.
Matera, A., PezzuttiHolzchuh, M., Spicciati, W. and Elias Randi, R. (1989). Simplified surgical technique of ear cropping. Brazilian journal of veterinary research and animal science, 26 (2): 213-221 DOI: vti-726949.
Mccafferty, D., Gilbert, C., Paterson, W., Pomeroy, P., Thompson, D., Currie, J. and Ancel, A. (2011). Estimating metabolic heat loss in birds and mammals by combining infrared thermography with biophysical modelling. Comparative Biochemistry Physiology Part A: Molecular Integrative Physiology, 158 (3): 337-345 DOI: http://dx.doi.org/10.1016/j.cbpa.2010.09.012.
Mccafferty, D. J., Currie, J. and Sparling, C. E. (2007). The effect of instrument attachment on the surface temperature of juvenile grey seals (Halichoerus grypus) as measured by infrared thermography. Deep Sea Research Part II: Topical Studies in Oceanography, 54 (3-4): 424-436 DOI: http://dx.doi.org/10.1016/j.dsr2.2006.11.019.
Meola, C. and Carlomagno, G. M. (2004). Recent advances in the use of infrared thermography. Measurement science technology, 15 (9): R27 DOI: http://dx.doi.org/10.1088/0957-0233/15/9/R01.
Pavelski, M., Silva, D., Leite, N., Junior, D., De Sousa, R., Guérios, S. andDornbusch, P. (2015). Infrared T hermography in Dogs with Mammary Tumors and Healthy Dogs. Journal of veterinary internal medicine, 29 (6): 1578-1583 DOI: https://doi.org/10.1111/jvim.13597.
Pets - Nairaland, F. (2023). All About the Nigerian Shepherd Dog (Ekuke, Nkita) [Online]. Nigeria: Nairaland. Available: https://www.nairaland.com/4747625/all-nigerian-shepherd-dog-ekuke [Accessed 24/03/2023 2023].
Rainwater-Lovett, K., Pacheco, J. M., Packer, C. and Rodriguez, L. L. (2009). Detection of foot-and-mouth disease virus infected cattle using infrared thermography. The Veterinary Journal, 180 (3): 317-324 DOI: http://dx.doi.org/10.1016/j.tvjl.2008.01.003.
Ramirez-Garcialuna, J. L., Rangel-Berridi, K., Bartlett, R., Fraser, R. D. and Martinez-Jimenez, M. A. (2022). Use of Infrared Thermal Imaging for Assessing Acute Inflammatory Changes: A Case Series. Cureus, 14 (9): DOI: 10.7759/cureus.28980.
Redaelli, V., Bergero, D., Zucca, E., Ferrucci, F., Costa, L. N., Crosta, L. and Luzi, F. (2014). Use of thermography techniques in equines: principles and applications. Journal of Equine Veterinary Science, 34 (3): 345-350 DOI: http://dx.doi.org/10.1016/j.jevs.2013.07.007.
Soroko, M., Henklewski, R., Filipowski, H. and Jodkowska, E. (2013). The effectiveness of thermographic analysis in equine orthopedics. Journal of equine veterinary science, 33 (9): 760-762 DOI: http://dx.doi.org/10.1016/j.jevs.2012.11.009.
Stewart, M., Webster, J., Verkerk, G., Schaefer, A., Colyn, J. and Stafford, K. (2007). Non-invasive measurement of stress in dairy cows using infrared thermography. Physiology behaviour, 92 (3): 520-525 DOI: http://dx.doi.org/10.1016/j.physbeh.2007.04.034.
Szpaderska, A. M. and Dipietro, L. A. (2005). Inflammation in surgical wound healing: friend or foe? Surgery, 137 (5): 571-573 DOI: doi.org/10.1016/j.surg.2005.01.006.
Turner, T. A. (2001). Diagnostic thermography. Veterinary Clinics of North America: Equine Practice, 17 (1): 95-114.
Vainionpää, M. (2014). Thermographic imaging in cats and dogs: usability as a clinical method. PhD Thesis, University of Helsinki.
Vainionpää, M., Tienhaara, E.-P., Raekallio, M., Junnila, J., Snellman, M. and Vainio, O. (2012). Thermographic Imaging of the Superficial Temperature in Racing Greyhounds before and after the Race. The Scientific World Journal, 2012 DOI: http://dx.doi.org/10.1100/2012/182749.
Vainionpää, M. H., Raekallio, M. R., Junnila, J. J., Hielm-Björkman, A. K., Snellman, M. P. and Vainio, O. M. (2013). A comparison of thermographic imaging, physical examination and modified questionnaire as an instrument to assess painful conditions in cats. Journal of Feline Medicine Surgery, 15 (2): 124-131 DOI: http://dx.doi.org/10.1177/1098612X12463926.
Van Hoogmoed, L. M. and Snyder, J. R. (2002). Use of infrared thermography to detect injections and palmar digital neurectomy in horses. The Veterinary Journal, 164 (2): 129-141 DOI: http://dx.doi.org/10.1053/tvjl.2002.0719.
Walters, T. J., Blick, D. W., Johnson, L. R., Adair, E. R. and Foster, K. R. (2000). Heating and pain sensation produced in human skin by millimeter waves: comparison to a simple thermal model. Health physics, 78 (3): 259-267 DOI: http://dx.doi.org/10.1097/00004032-200003000-00003.
Wang, Z., Ying, Z., Bosy-Westphal, A., Zhang, J., Schautz, B., Later, W., Heymsfield, S. B. and Müller, M. (2010). Specific metabolic rates of major organs and tissues across adulthood: evaluation by mechanistic model of resting energy expenditure. The American journal of clinical nutrition, 92 (6): 1369-1377 DOI: 10.3945/ajcn.2010.29885.
Webb, P. I., Speakman, J. R. and Racey, P. A. (1993). The implication of small reductions in body temperature for radiant and convective heat loss in resting endothermic brown long-eared bats (Plecotusauritus). Journal of thermal biology, 18 (3): 131-135.
Whalen, L. and Kitchell, R. (1983). Electrophysiologic and behavioral studies of the cutaneous nerves of the concave surface of the pinna and the external ear canal of the dog. American Journal of Veterinary Research, 44 (4): 628-634.
Willot, M. (1980). Otectomy (ear cropping) of Briard dogs. Point Veterinaire, 10 (48): 16-25 DOI: 19802259172.
Woodruff, K., Rigdon-Brestle, K., Bushby, P., Wills, R. and Huston, C. (2015). Scrotal castration versus prescrotal castration in dogs. Veterinary Medicine, 110 (5): 131-135.
Yoon, H. Y., Kang, M. G. and Jeong, S. W. (2009). Gastrotomy approach retrieval of esophageal foreign body using long forceps technique in five dogs. Journal of Veterinary Clinics, 26 (6): 628-631.