Effect of shading in physiological responses, milk yield and quality of Girolando cows
Keywords:Chemical composition of milk; Crossbred cows; Environment; Physiology; Thermal stress.
The aim of this study was to evaluate the effect of providing shade to Girolando cows on milk yield and composition, physiological parameters, hemogram and blood pH. Two treatments were used: paddocks with and without shade. Animals were alternately kept in each treatment for a period of 15 days for three times. Milk production was recorded and measurements were taken for rectal temperature, skin surface and udder surface temperatures. A total of 24 blood samples were collected form each cow during the experimental procedure. This was done to compare the mean milk yield and chemical composition as well as physiological and blood parameters. The t-test was applied at 5% significance level. Milk urea was higher when the animals were kept in a shaded area. The morning recording for blood erythrocyte counts hematocrit, milk urea, rectal temperature, skin surface and udder surface temperatures showed interaction with respect to temperature ranges whereas the udder temperature in the afternoon showed a similar response. Girolando cows with 3/4 Holland + 1/4 Gyr and 7/8 Holland + 1/8 Gyr blood levels present an ability to adapt to the environment, and there was no effect of shading on milk yield and composition, physiological and blood parameters evaluated.
Barbosa, O. R., Boza, P. R., Santos, G. T., Sakagushi, E. S., & Ribas, N. P. (2004). Efeitos da sombra e da aspersão de água na produção de leite de vacas da raça Holandesa durante o verão. Acta Scientiarum. Animal Sciences, 26(1), 115–122. https://doi.org/10.4025/actascianimsci.v26i1.1961
Cinar, M., Serbester, U., Ceyhan, A., & Gorgulu, M. (2015). Effect of somatic cell count on milk yield and composition of first and second lactation dairy cows. Italian Journal of Animal Science, 14(1), 105–108. https://doi.org/10.4081/ijas.2015.3646
Collier, R. J., Dahl, G. E., & Vanbaale, M. J. (2006). Major advances associated with environmental effects on dairy cattle. Journal of Dairy Science, 89(4), 1244–1253. https://doi.org/10.3168/jds.S0022-0302(06)72193-2
Façanha, D. A. E., Silva, R. G., Maia, A. S. C., Guilhermino, M. M., & Vasconcelos, A. M. (2010). Variação anual de características morfológicas e da temperatura de superfície do pelame de vacas da raça Holandesa em ambiente semiárido. Revista Brasileira de Zootecnia, 39(4), 837–844.
Fagnani, R., Beloti, V., & Battaglini, A. P. P. (2014). Acid-base balance of dairy cows and its relationship with alcoholic stability and mineral composition of milk. Pesquisa Veterinaria Brasileira, 34(5), 398–402. https://doi.org/10.1590/S0100-736X2014000500002
Gonzalez, H. L., Fischer, V., Ribeiro, M. E. R., Gomes, J. F., Stumpf Jr, W., & Silva, M. A. (2004). Avaliação da Qualidade do Leite na Bacia Leiteira de Pelotas, RS. Efeito dos Meses do Ano. Revista Brasileira de Zootecnia, 33(6), 1531–1543.
IDF. (2006). ISO 13366-2/IDF 148-2 – Milk - Enumeration of somatic cells – Part. 2: Guidance on the operation of fluoro-opto-electronic counters (2nd ed.).
IDF. (2013). ISO 9622/IDF 141C – Determination of milkfat, protein and lactose content – Guidance on the operation of mid-infrared instruments. (2nd ed.).
Kim, W. S., Lee, J. S., Jeon, S. W., Peng, D. Q., Kim, Y. S., Bae, M. H., Jo, Y. H., & Lee, H. G. (2018). Correlation between blood, physiological and behavioral parameters in beef calves under heat stress. Asian-Australasian Journal of Animal Sciences, 31(6), 919–925. https://doi.org/10.5713/ajas.17.0545
Marai, I. F. M., & Haeeb, A. A. M. (2010). Buffalo’s biological functions as affected by heat stress - A review. Livestock Science, 127(2–3), 89–109. https://doi.org/10.1016/j.livsci.2009.08.001
Marques, T. C., Leão, K. M., Viu, M. A. O., & Sartori, R. (2014). The effects of progesterone treatment following artificial insemination on the reproductive performance of dairy cows. Tropical Animal Health and Production, 46(2). https://doi.org/10.1007/s11250-013-0504-2
Paes, P. R. O., Lopes, S. T. A., Lopes, R. S., Kohayagawa, A., Takahira, R. K., & Langon, H. (2003). Efeitos da administração de vitamina E na infecção mamária e na contagem de células somáticas de cabras primíparas desafiadas experimentalmente com Staphylococcus aureus. Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 55(1), 15–20. https://doi.org/10.1590/S0102-09352000000300011
Pereira, A. S., Shitsuka, Dorlivete Moreira Parreira, F. J., & Shitsuka, R. (2018). Metodologia da Pesquisa Científica. [eBook]. Santa Maria. UAB/NTE/UFSM.
Perissinoto, M., & Moura, D. J. (2007). Determinação Do Conforto Térmico De Vacas Leiteiras Utilizando a Mineração De Dados / Evaluation of Thermal Comfort in Dairy Cattle Using Data Mining. Revista Brasileira de Engenharia de Biossistemas, 1(2), 117. https://doi.org/10.18011/bioeng2007v1n2p117-126
Santos, L. V., Carvalho, C. C. S., Ruas, J. R. M., Diniz, T. A., Silva, E. A., & Moreira, S. J. M. (2018). Impact of microclimate on the physiology, hair coat and milk production of dairy cows at different seasons. Revista de Ciencias Agroveterinarias, 17(3), 368–376. https://doi.org/10.5965/223811711732018368
SAS. (2004). SAS Enterprise guide Software (9.1). Institute Inc. Cary.
Severinghaus, J. W., Astrup, P., & Murray, J. F. (1998). Blood gas analysis and critical care medicine. American Journal of Respiratory and Critical Care Medicine, 157, S114-112. https://doi.org/10.1164/ajrccm.157.4.nhlb1-9
Silva, D. J., & Queiroz, A. C. (2002). Análise de alimentos: métodos químicos e biológicos (3rd ed.). UVF.
Silva, F. A. S., & Azevedo, C. A. V. (2016). The Assistat Software Version 7.7 and its use in the analysis of experimental data. African Journal of Agricultural Research, 11(39), 3733–3740. https://doi.org/10.5897/ajar2016.11522
Smith, B. I., & Risco, C. A. (2005). Management of periparturient disorders in dairy cattle. Veterinary Clinics of North America - Food Animal Practice, 21, 503–521. https://doi.org/10.1016/j.cvfa.2005.02.007
West, J. W. (2003). Effects of heat-stress on production in dairy cattle. Journal of Dairy Science, 86(6), 2131–2144. https://doi.org/10.3168/jds.S0022-0302(03)73803-X
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Copyright (c) 2021 Mariana Borges de Castro Dias; Karen Martins Leão; Marco Antônio Pereira da Silva; Karen Sofia R. Santos; Francisco Ribeiro de Araújo Neto; José Flávio Neto; Thaisa Campos Marques; Edmar Soares Nicolau
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