Bioclimatic diagnosis for dairy cattle breeding in João Pessoa, Brazil
Patrícia Venâncio da Silva Medeiros, Fabrício Macêdo Furtado, Matheus Serrano de Medeiros, José Ronaldo Brandão Júnior
Abstract
One of the environmental elements that have a more pronounced effect on animal welfare is the climate, and as a result, negatively impacts productive performance and is considered a regulating or even restrictive element of animal exploitation for economic purposes. The ambient temperature range within which the animal maintains body temperature without the need for activation of thermoregulatory mechanisms is called the thermal comfort zone (TCZ), where the thermal equilibrium occurs naturally. The TCZ varies among the different species of domestic animals, where the minimum and maximum values of this range are influenced by the climate elements. Thus, within the animal bioclimatology, the environmental diagnosis can be highlighted that allows support regarding the information of variation and ideal environmental conditions for animal exploration, as well as, help in management measures that minimize the effect of the thermal challenge and enable the maximization of productivity animal. This research aimed to carry out the environmental diagnosis for dairy cattle in the municipality of João Pessoa, Brazil, based on average, maximum and minimum temperatures, BGHI and relative humidity. According to the results, both dairy cows and calves have thermal discomfort caused by high temperatures. As a way to reduce heat stress, it is necessary for some environmental modifications that aim to mitigate the stressors actions on the animals. According to our analysis, the bioclimatic diagnosis for João Pessoa presents a need for improvement of the facilities to provide the animals with thermal comfort, thus making it possible for these animals to present a higher production yield.
Keywords
References
Baêta FC, Souza FC (2010) Ambiência em edificações rurais: conforto animal. Universidade Federal de Viçosa, Viçosa.
Carvalho PCF, Moraes SA (2005) Comportamento ingestivo de ruminantes: bases para o manejo sustentável do pasto.In: Manejo Sustentável em Pastagem, 1, Maringá. Anais... Maringá: UEM.
Domingos HGT, Maia ASC, Souza Jr JBF, Silva RB, Vieira FMC, Silva RG (2013) Effect of shade and water sprinkling on physiological responses and milk yields of Holstein cows in a semi-arid region. Livestock Science 154:169–174.
FAO - Food and Agriculture Organization of the United Nations. FAOSTAT (2014). Disponível em: Acesso em: 27 janeiro 2015.
Fernandes JT (2011) Código de obras e edificações do DF: inserção de conceitos bioclimáticos, conforto térmico e eficiência energética. 249p. Dissertação de Mestrado em Arquitetura e Urbanismo. Faculdade de Arquitetura e Urbanismo, Universidade de Brasília – UnB, Brasília.
Head HH (1989) The strategic use of the physiological potential of the dairy cow. In: SIMPÓSIO LEITE NOS TRÓPICOS: novas estratégias de produção, Botucatu. Anais... Botucatu: UNESP, 1989. p. 38-89.
Hoffman PC (1997) A new look at our old heifer-rasing rules. Hoard’s Dairyman 142:814-827.
Hoffman, P.C., Brehn, N.M., Howard, W.T. et al. (1995) The influence of nutrition and environment on growth of Holstein replacement heifer in commercial dairy herds. Animal Science 10:49.
Lopes Neto JP (2017) Construções e instalações rurais. NT editora: Brasília, 138p.
IBGE – Instituto Brasileiro de Geografia e Estatística. Censo Agropecuário 2006.
Medeiros, L.F.D.; Vieira, D.H. Bioclimatologia animal. (1997). Disponível em: http://www.iz.ufrj.br/zootecnia_draa/biblioteca/Fernando/apostila%20I.pdf. Acesso em: 12 de novembro 2013.
Pereira CCJ (2005). Fundamentos de bioclimatologia aplicados à produção animal. Belo Horizonte: FEPMVZ, 195p.
Rashamol VP, Sejian V, Bagath M, Krishnan G, Archana PR, Bhatta R (2018) Physiological adaptability of livestock to heat stress: an updated review. Journal of Animal Behaviour and Biometeorology, 6:62-71.
Zanine AM, Vieira BR, Ferreira DJ (2007) Comportamento ingestivo de bovinos de diferentes categorias em pastagem de capim Coast-cross. Bioscience Journal 23:111- 119.
Submitted date:
01/10/2019
Reviewed date:
02/09/2019
Accepted date:
02/24/2019
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