Skip to main content Skip to main navigation menu Skip to site footer
Agricultural Science
Published: 2018-11-13

Influence of different materials for covering mobile shelters in the thermal comfort of calves in the climatic conditions of Sinop / MT

Embrapa
##plugins.generic.jatsParser.article.authorBio##
×

L. B. Lopes

Produção Animal
Welfare temperature bovine

Abstract

The use of mobile shelters to raise calves has been a practical alternative to farmers, taking into account their importance in reducing the spread of diseases as well as thermal stress. Despite the fact that individual shelters are widely employed in the country, there is little information on the thermal efficiency of materials that are normally used to build them (Barnabé et al, 2014), as well as the high cost involved in their construction. The aim of this study was to evaluate the following variables: temperature, relative humidity and temperature-humidity index (THI), and the cost-benefit ratio of the recyclable materials used to cover the shelters. Bottle PET (T2), tires (T3), milk packaging (Tetrapack™) (T4) and one sensor as baseline left in full sun. During a 40 days period, the temperature and relative humidity data were recorded hourly, to obtain daily averages. There was no statistical difference (p> 0.05) between materials related to temperature, relative humidity and ITU averages. Even the critical temperature and humidity do not presented significant variation between the treatments (p> 0.05). Considering the results, there is no significant differences among the materials used related to the thermal efficiency based on the above mentioned variables . Therefore, it can be concluded that thereplacement of the conventional roof (Eternit®) by these alternative materials becomes feasible, based on the lower costs and the ecological appeal for recycle materials.

References

  1. Associação Brasileira da Industria de PET – ABIPET. (2010). Reciclagem: beneficio da reciclagem do PET. São Paulo. Disponível em: http://www.abipet. org.br/index.html?method=mostrarInstitucional&id=49. Acessado em: 23 out. 2017.
  2. BAÊTA, F.C.; SOUZA, C.F. Ambiência em edificações rurais: Conforto animal. 2.ed. Viçosa: Editora UFV, 2010. 269 p.
  3. BARNABÉ, J.M.C et al. Conforto térmico e desempenho de bezerras Girolando alojadas em abrigos individuais com diferentes coberturas. Revista Brasileira de Engenharia Agrícola e Ambiental, v.1, n.5, p.481–488, 2015.http://dx.doi.org/10.1590/1807-1929/agriambi.v19n5p481-488
  4. CAMPOS, A.T et al. Análise térmica de abrigos individuais móveis e sombrite para Bezerros. Acta Scientiarum Animal Sciences, v. 27, n. 1, p.153-161, 2005.
  5. CAMPOS, O.F; LIZIEIRE, R.S. Alimentação e manejo de bezerros de reposição em rebanhos leiteiros. Juiz de Fora: Embrapa Gado de Leite, 1995. (Embrapa Gado de Leite Circular Técnica, 34).
  6. CARGIL, B.F.; STEWART, R.E. Effect of humidity on total heat and total vapor dissipation of Holstein cows. Transaction of the ASAE, v.51, n.9, p.202-207. 1966.
  7. CEMPRE, 2010. O mercado para reciclagem, disponível em: http://www.cempre.org.br/fichas_tecnicas.php?lnk=ft_emp_longa_vida.php. Acesso em 27 de outubro de 2017
  8. DIKMEN, S.; HANSEN, P. J. Is the temperature-humidity index the best indicator of heat stress in lactating dairy cows in a subtropical environment? Journal of Dairy Science, v.92, p.109-116, 2009.http://dx.doi.org/10.3168/jds.2008-1370
  9. EMBRAPA PECUÃRIA SUDESTE. Casinha Tropical: abrigo para bezerros simples, barato e eficiente. São Carlos, SP: EMBRAPA CPPSE, [2011]. 1 Folder. Disponível em:< http://www.cppse.embrapa.br/sites/default/files/principal/publicacao/casinha-0712.pdf>. Acesso em: 30 jul. 2017.
  10. INMETRO. Ciclo de vida dos pneus, 2010. Dinsponível em: http://www.inmetro.gov.br/painelsetorial/palestras/Zilda-Maria-Faria-Veloso-Ciclo-Vida-Pneus.pdf. Acesso 23 out. 2017
  11. KAWABATA, C. Y. et al. Ãndices de conforto térmico e respostas fisiológicas de bezerros da raça holandesa em bezerreiros individuais com diferentes coberturas. Engenharia Agrícola, Jaboticabal, v. 25, n. 3, p. 598-607, 2005.
  12. NEVES,F.L. & ZUBEN, F.J. Recycling of Aluminum and Polyethylene from Tetra Pak Carton Packages as Plastic Composite. GPEC - Global Pastics Environmental Concil, Detroit- USA, p.371-378, 2003. Proceeding Book.
  13. PEREIRA, C.C.J. Fundamentos de Bioclimatologia Aplicados à Produção Animal. Belo Horizonte: FEPMVZ, 2005.

How to Cite

Kamchen, S. G., Lopes, L. B., Zolin, C. A., & Gomes, F. J. (2018). Influence of different materials for covering mobile shelters in the thermal comfort of calves in the climatic conditions of Sinop / MT. Scientific Electronic Archives, 11(6), 32–36. https://doi.org/10.36560/1162018601