Seasonal variations in thermoregulatory patterns enable Morada Nova sheep to adapt to Brazilian semi-arid
DOI:
https://doi.org/10.5433/1679-0359.2019v40n4p1577Keywords:
Adaptive characteristics, Coat characteristics, Phenotypic markers.Abstract
The present study aimed evaluate possible modifications of thermoregulatory morphophysiological responses of Morada Nova sheep throughout the year in 4 properties of the nucleus of participatory genetic breeding. In the months of March, June, September and December, respiratory rate (RR), rectal temperatures (RT) and surface (ST) were recorded as well as the environmental variables air temperature (airT), relative humidity (RH) wind (Ws). Calculated the radiant heat load (RHL) and the Black Globe Humidity Index (BGHI). The coat thickness was measured and hair samples were collected and determined hair density, hair length and hair diameter. Blood collection was collected for determination of T3 and total T4 concentrations. In the rainy season, which includes the months of March and June, higher values of RR and RT, probably due to the combination of high RH, associated to RHL, BGHI and airT were recorded, as these hamper loss and heat. All values of RT independent of month and flocks remained within values considered normal for the species. September and December are inserted in the dry season, with a low RH factor that can facilitate heat loss through evaporation. In these months, lower values of RT and RR were observed when compared to the rainy season, lower values of RR were recorded between 40 and 60 mov.min-1 . The secretion of thyroid hormones was greater in the environmental conditions considered more comfortable. The homeothermia was maintained by Morada Nova sheep at different times evaluated as indicated by the normal physiological parameters. The rainy season was considered the most stressful for the animals, since they used a more intense set of variables in order to thermoregulate and maintain the homeothermia, which justifies the importance of providing shelters, with the objective of reducing the overheating, even in view of their great adaptive capacity, already demonstrated in previous studies. Changes in the coat characteristics were observed during all the months of the year, assisting for either physical protection or heat dissipation and could therefore be indicated as a thermotolerance phenotypic marker with the potential to be used as selection criteria in breeding programs and conservation of resistant animals to heat.Downloads
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AL-HAIDARY, A. A.; ALJUMAAH, R. S.; ALSHAIKH, M. A.; ABDOUN, K. A.; SAMARA, E. M.; OKAB, A. B.; ALFURAIJI, M. M. Thermoregulatory and physiological responses of Najdi sheep exposed to environmental heat load prevailing in Saudi Arabia. Pakistan Veterinary Journal, Faisalabd, v. 32, n. 4, p. 515-519, 2012.
BAÊTA, F. C.; SOUZA, C. F. Ambiência em edificações rurais: conforto animal. Viçosa, MG: UFV, 1997. 246 p.
BERTIPAGLIA, E. C. A.; SILVA, R. G.; CARDOSO, V.; MAIA, A. S. C. Estimativas de parâmetros genéticos e fenotípicos de características do pelame e de desempenho reprodutivo de vacas Holandesas em clima tropical. Revista Brasileira de Zootecnia, Viçosa, MG, v. 36, n. 9, p. 351-359, 2007. DOI: dx.doi.org/10.1590/S1516-35982007000200011.
BRTKO, J.; PASCUAL, A.; ARANDA, A. 3.5.3’-Triiodothyronine nuclear receptors and their role in the thyroid hormone action. Endocrine Regulations, Bratislava, v. 28, n. 3, p. 107-115, 1994.
CENA, K.; MONTEITH, J. L. Transfer processes in animal coats. Radiative transfer. Proceedings of Royal Society of London, London, v. 188, n. 2, p. 377-393, 1975. DOI: doi.org/10.1098/rspb.1975.0026
COLLIER, R. J.; GEBREMEDHIN, K. G. Thermal biology of domestic animals. Annual Review of Animal Biosciences, California, v. 3, n. 2, p. 513-532, 2015. DOI: doi.org/10.1146/annurev-animal-022114-110659
COSTA, W. P.; FAÇANHA, D. A. E.; LEITE, J. H. G. M.; SILVA, R. C. B.; SOUZA, C. H.; CHAVES, D. F.; VASCONCELOS, A. M.; SOTO-BLANCO, B.; VALE, A. M.; PIMENTA-FILHO, E. C. Thermoregulatory responses and blood parameters of locally adapted ewes under natural weather conditions of Brazilian semiarid region. Semina: Ciências Agrárias, Londrina, v. 36, n. 6, p. 4589-4600, 2015. DOI: 10.5433/1679-0359.2015v36n6Supl2p4589
DIAS, M. I. R.; CARNEIRO, M. J. R.; AZEVEDO, J. M. T.; FERREIRA, A. J.; CABRITA, A. M. S. Parâmetros hematológicos de bioquímica sanguínea geral, eletrólitos plasmáticos e das hormonas relacionadas com a função da tiroide na ovelha da raça Churra da Terra Quente. Revista Portuguesa de Ciências Veterinárias, Lisboa, v. 99, n. 550, p. 99-107, 2004.
FAÇANHA-MORAIS, D. A. E.; MAIA, A. S. C.; SILVA, R. G.; VASCONCELOS, A. M.; LIMA, P. O.; GUILHERMINO, M. M. Variação anual de hormônios tireoidianos e características termorreguladoras de vacas leiteiras em ambiente quente. Revista Brasileira de Zootecnia, Viçosa, MG, v. 37, n. 3, p. 538-545, 2008. DOI: dx.doi.org/10.1590/S1516-35982008000300020
FELDMAN, E, C.; NELSON, R. W. Canine and feline endocrinology and reproduction. 3th ed. Philadelphia: Saunders, 2004. 1089 p.
FERREIRA, A. C. H.; NEIVA, J. N. M.; RODRIGUEZ, N. M.; CAMPOS, W. E.; BORGES, I. Avaliação nutricional do subproduto da agroindústria de abacaxi como aditivo de silagem de capim-elefante. Revista Brasileira de Zootecnia, Viçosa, MG, v. 38, n. 2, p. 223-229, 2009. DOI: dx.doi.org/10.1590/S1516-35982009000200002.
FERREIRA, J. B.; BEZERRA, A. C. D.; GUILHERMINO, M. M.; MORAIS-LEITE, J. H. G.; SILVA, W. E.; PAIAVA, R. D. M.; BARBOSA, T. N.; SOUZA, J. E. R.; FAÇANHA, D. A. E. Performance, endoparasitary control and blood values of ewes locally adapted in semiarid region. Comparative Immunology. Microbiology and Infectious Diseases, Lyon, v. 52, n. 1, p. 23-29, 2017. DOI: dx.doi.org/10.1016/j.cimid.2017.05.004
FERREIRA, J. B.; PAIVA, R. D. M.; BEZERRA, A. C. D.; SOUSA, J. E.; FAÇANHA, D.A.E. A multivariate approach to the diagnosis of gastrointestinal infection in ewes. Veterinary Parasitology, Amsterdam, v. 252, p. 95-97, 2018. DOI: doi.org/10.1016/j.vetpar.2018.02.015
GEBREMEDHIN, K. G.; HILLMAN, P. E.; LEE, C. N.; COLLIER, R. J.; WILLARD, S. T.; ARTHINGTON, J. D.; BROWN-BRANDL, T. M. Sweating rates of dairy cows and beef heifers in hot conditions. Transaction of the ASABE, St. Joseph, v. 51, n. 6, p. 2167-2178, 2008.
HILLMAN, P. E.; GEBREMEDHIN, K. G.; PARKHURST, A.; FUQUAY, J.; WILLARD, S. T. Evaporative and convective cooling of cows in a hot and humid environment. American Society of Agricultural and Biological Enginners, St. Joseph, v. 1, n. 1, p. 343-350, 2001. DOI: 10.13031/2013.24114
HOFFMANN, I. Climate changes and the characterization, breeding and conservation of genetic animal resources. Animal Genetics, Malden, v. 41, n. 1, p. 32-46, 2010. DOI: 10.1111/j.1365-2052.2010.02043.x
JOHNSON, H. D.; KATTI, P. S.; HAHN, L.; SHANKLIN, M. D. Short-term heat acclimation effects on hormonal profile of lactating cows. Missouri: Agri. Exp. Sta, p. 1-30, 1988. RESEARCH BULLETIN 1061.
KOLUMAN, N.; DASKIRAN, I. Effects of ventilation of the sheep house on heat stress growth and thyroid hormones of lambs. Tropical Animal Health and Production, Roslin, v. 43, n. 6, p. 1123-1127, 2011. DOI: 10.1007/s11250-011-9811-7
LEE, D. H. K. Manual of field studies on heat tolerance of domestic animals. Roma: FAO, 1953. 161 p.
LEITE, J. H. G. M.; FAÇANHA, D. A. E.; COSTA, W. P.; CHAVES, D. F.; GUILHERMINO, M. M.; SILVA, W. S. T.; BERMEJO, L. A. Thermoregulatory responses related to coat traits of Brazilian native ewes: an adaptive approach. Journal of Applied Animal Research, Grange, Irlanda, v. 45, p. 1-7, 2017. DOI: 10.1080/09712119.2017.1302877
LEITE, J. H. G. M.; SILVA, R. G.; SILVA, W.S.T.; SILVA, W.E.;PAIVA, R.D.M.;SOUSA, J.E.R.;ASENSIO, L.A.B.; FAÇANHA, D.A.E. Locally adapted Brazilian ewes with different colors maintain homeothermy during the year in a equatorial semiarid environment. Internationa Journal Biometeorology, Kent, v. 62, n. 9, p. 1635-1644, 2018. DOI:10.1007/s00484-018-1563-x
MAIA, A. S. C.; SILVA, R. G.; BATTISTON LOUREIRO, C. M. Sensible and latent heat loss from body surface of Holstein cows in a Tropical environment. International Journal of Biometeorology, Kent, v. 50, n. 1, p. 17-22, 2005. DOI: 10.1007/s00484-005-0267-1
MAIA, A. S. C.; SILVA, R. G.; BERTIPAGLIA, E. C. A. Características do pelame de vacas Holandesas em ambiente tropical: um estudo genético e adaptativo. Revista Brasileira de Zootecnia, Viçosa, MG, v. 32, n. 4, p. 843-853, 2003. DOI: dx.doi.org/10.1590/S1516-35982003000400009.
MARAI, I. F. M.; EL-DARAWANY, A. A.; FADIEL, A.; ABDEL-HAFEZ, M. A. M. Physiological traits as affected by heat stress in sheep - a review. Small Ruminant Research, Amsterdam, v. 71, n. 1, p. 1-12, 2007. DOI: doi.org/10.1016/j.smallrumres.2006.10.003
MAURYA, V. P.; SEJIAN, V.; KUMAR, D.; NAQVI, S. M. K. Effect of induced body condition score diferences on sexual behavior, scrotal measurements, semen attributes and endocrine responses in Malpura rams under hot semi-arid environment. Journal of Animal Physiology and Animal Nutrition, Berlin, v. 94, n. 3, p. 308-317, 2010. DOI: 10.1111/j.1439-0396.2010.01012.x.
MCARTHUR, A. J. Thermal interaction between animal and microclimate: a comprehensive model. Journal Theoretica Biology. Ann Arbor, Michigan, v. 126. n. 2, p. 203-238, 1987. DOI: doi.org/10.1016/S0022-5193(87)80229-1
MCDONALD, L. E. Veterinary endocrinology and reproduction. 3th ed. Philadelphia: Lea & Febiger, 1980. 560 p.
MCMANUS, C.; PALUDO, G. R.; LOUVANDINI, H.; GUGEL, R.; SASAKI, L. C. B.; PAIVA, S. R. Heat tolerance in Brazilian sheep: physiological and blood parameters. Tropical and Animal Health Production, Roslin, v. 41. n. 1, p. 95-101, 2009. DOI: 10.1007/s11250-008-9162-1
MCNABB, F. M. Thyroid hormones. their activation. degradation and effects on metabolism. The Journal of Nutrition, Philadelphia, v. 125. n. 6, p. 1773-1776, 1995. DOI: 10.1093/jn/125.suppl_6.1773S
NIXON, A. J.; FORD, C. A.; WILDERMOTH, J. E.; CRAVEN, A. J.; ASHBY, M. G.; PEARSON, A. J. Regulation of prolactin receptor expression in ovine skin in relation to circulating prolactin and wool follicle growth status. Journal of Endocrinology, Melbourne, v. 172, n. 3, p. 605-614, 2002. DOI: 0022-0795/02/0172-605
PANAGAKIS, P. Black-globe temperature effect on short-term heat stress of dairy ewes housed under hot weather conditions. Small Ruminant Research, Amsterdam, v. 100, n. 1, p. 96-99, 2011. DOI: 10.1016/j.smallrumres.2011.06.006
RANDALL, D.; BURGREEN, W.; FRENCH, K. Animal physiology: mechanisms and adaptations. 4th ed. New York: H. W. Freeman and Company, 1997. 727 p.
ROGER, P. A. The impact of disease and disease prevention on sheep welfare. Small Ruminant Research, Amsterdam, v. 76, n. 1, p. 104-111, 2008. DOI: doi.org/10.1016/j.smallrumres.2007.12.005
RUST, J. M.; RUST, T. Climate change and livestock production: A review with emphasis on Africa. South African Journal Animal Science, Cape Town, v. 43, n. 3, p. 254-267, 2013. DOI: dx.doi.org/10.4314/sajas.v43i3.3
SEJIAN, V.; MAURYA, V. P.; NAQVI, S. M. K. Adaptability and growth of Malpura ewes subjected to thermal and nutritional stress. Tropical and Animal Health Production, Roslin, v. 42, n. 8, p. 1763-1770, 2010. DOI: 10.1007/s11250-010-9633-z
SILANIKOVE, N. Effects of heat stress on the welfare of extensively managed domestic ruminants. Livestock Production Science, New York, v. 67, n. 1-2, p. 1-18, 2000. DOI: doi.org/10.1016/S0301-6226(00)00162-7
SILVA, R. G. Biofísica ambiental: os animais e seu ambiente. São Paulo: FUNEP, 2008. 386 p.
SILVA, R. G. Estimativa do balanço térmico por radiação em vacas Holandesas expostas ao sol e à sombra em ambiente tropical. Revista Brasileira de Zootecnia, Viçosa, MG, v. 28, n. 6. p. 1403-1411, 1999. DOI: dx.doi.org/10.1590/S1516-35981999000600031
SILVA, R. G. Introdução à bioclimatologia animal. São Paulo: Nobel, 2000. 415 p.
SILVA, R. G.; STARLING, J. M. C. Evaporação cutânea e respiratória em ovinos sob altas temperaturas ambientes. Revista Brasileira de Zootecnia, Viçosa, MG, v. 32, n. 6, p. 1956-1961, 2003. DOI: dx.doi.org/10.1590/S1516-35982003000800020
SILVA, W. E.; MORAIS-LEITE, J. H. G.; SOUSA, J. E. R.; COSTA, W. P.; SILVA, W. S. T.; GUILHERMINO, M. M.; ASENSIO, L. A. B.; FAÇANHA, D. A. E. Daily rhythmicity of the thermoregulatory responses of locally adapted Brazilian sheep in a semiarid environment. Internacional Journal Biometeorology, Kent, v. 61, n. 7, p. 1221-1231, 2017. DOI: 10.1007/s00484-016-1300-2
STARLING, J. M. C.; SILVA, R. G.; NEGRAO, J. A.; MAIA, A. S. C.; BUENO, A. R. Variação estacional dos hormônios tireoidianos e do cortisol em ovinos em ambiente tropical. Revista Brasileira de Zootecnia, Viçosa, MG, v. 34, n. 6, p. 2064-2073, 2005. DOI: org/10.1590/S1516-35982005000600032
UDO, H. M. Hair coat characteristics in Friesian heifers in the Netherlands and Kenya. Wagneingen: Meded. Landbouwhogeschool Wagneingen, 1978. 135 p.
VERÍSSIMO, C. J.; TITTO, C. G.; KATIKI, L. M.; BUENO, M. S.; CUNHA, E. A.; MOURAO, G. B.; OTSUK, I. P.; PEREIRA, A. M. F.; NOGUEIRA FILHO, J. C. M.; TITTO, E. A. L. Tolerância ao calor em ovelhas Santa Ines de pelagem clara e escura. Revista Brasileira de Saúde e Produção Animal, Salvador, v. 10, n. 1, p. 159-167, 2009.
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