The objective of this study was to compare the presence of ovarian activity and pregnancy rates to temperature variation at the vulvar skin measured by infrared thermography (IRT). In addition, we also aimed to evaluate the IRT as a non-invasive method to evaluate animal breeding from fixed timed artificial insemination (FTAI). The study comprises 150 non-lactating beef Braford cows (5/8 Hereford × 3/8 Nellore) aged between 3 and 10 years. Data were collected along the FTAI protocol period during animal management. Animals were subjected to reproductive ultrasound evaluation and thermal images were performed by an infrared camera. Mean skin vulvar temperature (°C) and ovarian structures data were compared using Tukey’s t test used as follow-up test to ANOVA. We observed a statistical difference in the mean vulvar skin temperature between animals that had the presence of ovarian follicles (34.2 ± 1.8) compared to no activity (35.4 ± 1.0; P < 0.05). However, vulvar skin temperature were similar between pregnant (34.5 ± 1.5) compared to non-pregnant (34.3 ± 1.9) animals (P > 0.05). In conclusion, the IRT technique was efficient to detect changes on vulvar skin temperature observed during FTAI protocol in Braford cows. Therefore, the use of IRT as an indirectly diagnostic tool to detect ovarian activity seems promising and further studies are required to validate their potential in beef cattle production.
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Bó, G.A. and Baruselli, P.S., 2014. Synchronization of ovulation and fixed-time artificial insemination in beef cattle, Animal, 8, 144--150
Carvalho, J.B., Carvalho, N.A., Reis, E.L., Nichi, M., Souza, A.H. and Baruselli, P.S., 2008. Effect of early luteolysis in progesterone-based timed AI protocols in Bos indicus, Bos indicus x Bos taurus, and Bos taurus heifers, Theriogenology, 69, 167--175
Hockey, C.D., Norman, S.T., Morton, J.M., Boothby, D., Phillips, N.J. and McGowan, M.R., 2010. Use of vaginal electrical resistance to diagnose oestrus, dioestrus and early pregnancy in synchronized tropically adapted beef heifers, Reproduction in Domestic Animals, 45, 629--636
Hoffmann, G., Schmidt, M., Ammon, C., Rose-Meierhöfer, S., Burfeind, O., Heuwieser, W. and Berg, W., 2013. Monitoring the body temperature of cows and calves using video recordings from an infrared thermography camera, Veterinary Research Communications, 37, 91--99
Hurnik, J.F., Webster, A.B. and DeBoer, S., 1985. An investigation of skin temperature differentials in relation to estrus in dairy cattle using a thermal infrared scanning technique, Journal of Animal Science, 61, 1095--1102
Justino, E., Nääs, I.A., Carvalho, T.M.R., Neves, D.P. and Salgado, D.D’A., 2014. The impact of evaporative cooling on the thermoregulation and sensible heat loss of sows during farrowing, Engenharia Agrícola, 34, 1050--1061
Lüttgenau, J., Mang, H., Borel, N., Bruckmaier, R.M. and Bollwein, H., 2016. Ultrasonographic examination reduces the percentage of unsuccessful inseminations in dairy cows, Theriogenology, 85, 664--670
McManus, C., Tanure, C.B., Peripolli, V., Seixas, L., Fischer, V., Gabbi, A.M., Menegassi, S.R.O., Stumpf, M.T., Kolling, G.J., Dias, E. and Costa, J.B.G., 2016. Infrared thermography in animal production: an overview, Computers and Electronics in Agriculture, 123, 10--16
Meneghetti, M. and Vasconcelos, J.L.M., 2008. Mês de parição, condição corporal e resposta ao protocolo de inseminação artificial em tempo fixo em vacas de corte primíparas, Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 60, 786--793
Nääs, I.A., Garcia, R.G. and Caldara, F.R., 2014. Infrared thermal image for assessing animal health and welfare, Journal of Animal Behaviour and Biometeorology, 2, 6
Rekant, S.I., Lyons, M.A., Pacheco, J.M., Arzt, J. and Rodrigues, L.L., 2016. Veterinary applications of infrared thermography, American Journla of Veterinary Research, 77, 98--107
Sá Filho, M.F., Nasser, L.F., Penteado, L., Prestes, R., Marques, M.O., Freitas, B.G., Monteiro, B.M., Ferreira, R.M., Gimenes, L.U. and Baruselli, P.S., 2015. Impact of progesterone and estradiol treatment before the onset of the breeding period on reproductive performance of Bos indicus beef heifers, Animal Reproduction Science, 160, 30--39
Sakatani, M., Takahashi, M. and Takenouchi, N., 2016. The efficiency of vaginal temperature measurement for detection of estrus in Japanese Black cows, Journal of Reproduction and Development, 62, 201--207
Simões, V.G., Lyazrhi, F., Picard-Hagen, N., Gayrard, V., Martineau, G.P. and Waret-Szkuta, A., 2014. Variations in the vulvar temperature of sows during proestrus and estrus as determined by infrared thermography and its relation to ovulation, Theriogenology, 82, 1080--1085
Soerensen, D.D. and Pedersen, L.J., 2015. Infrared skin temperature measurements for monitoring health in pigs: a review. Acta Veterinaria Scandinavica, 3, 57--65
Suthar, V.S., Burfeind, O., Patel, J.S., Dhami, A.J. and Heuwieser, W., 2011. Body temperature around induced estrus in dairy cows, Journal of Dairy Science, 94, 2368--2373
Suthar, V.S., Burfeind, O., Bonk, S., Dhami, A.J. and Heuwieser, W., 2012. Endogenous and exogenous progesterone influence body temperature in dairy cows, Journal of Dairy Science, 95, 2381--2389
Talukder, S., Kerrisk, K.L., Ingenhoff, L., Thomson, P.C., Garcia, S.C. and Celi, P., 2014. Infrared technology for estrus detection and as a predictor of time of ovulation in dairy cows in a pasture-based system, Theriogenology, 81, 925--935
Talukder, S., Thomson, P.C., Kerrisk, K.L., Clark, C.E. and Celi, P., 2015. Evaluation of infrared thermography body temperature and collar-mounted accelerometer and acoustic technology for predicting time of ovulation of cows in a pasture-based system, Theriogenology, 83, 739--748
Unruh, E.M., Theurer, M.E., White, B.J., Larson, R.L., Drouillard, J.S. and Schrag, N., 2017. Evaluation of infrared thermography as a diagnostic tool to predict heat stress events in feedlot cattle, American Journal of Veterinary Research, 78, 771—777
This study was supported by CNPq (Universal Grant; No.456724/2014-1) and CAPES (Project CAPES/PNPD). The authors thank Leme Pecuária for providing the animals and technical assistance for this study.
Conflict of interest
The authors declare that they have no conflict of interest.
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Radigonda, V.L., Pereira, G.R., da Cruz Favaro, P. et al. Infrared thermography relationship between the temperature of the vulvar skin, ovarian activity, and pregnancy rates in Braford cows. Trop Anim Health Prod 49, 1787–1791 (2017). https://doi.org/10.1007/s11250-017-1378-5
- Infrared thermography
- Non-invasive method
- Timed-fixed artificial insemination
- Beef cows