02338nab a2200313 i 4500 BR-BrBNA 20240902123751.0 240902b2018 bl.|r|pooa||| 00| 0 por | BR-BrBNA por L01 5214 Oliveira-Brochado, N.C. Chiodi, M.S. Souza-Cáceres, M.B. Abreu, U.G.P. Luz, D.F. Salla, L.E. Oliveira, M.V.M. Potencial leiteiro de animais da raça Pantaneira na região do Alto Pantanal do Mato Grosso do Sul Publicação online; 11 ref.; 3 tables; Summary (En) ABSTRACT - The Pantaneira breed is in danger of extinction. Due to the lack of scientific information on the Pantanal milk potential, this work had the objective of determining the lactation period and a physical-chemical composition of the milk of cows in second order of parturition. The animals were managed in a pasture system rotated in mombaça grass (Panicum maximum) and individually supplemented with concentrate The milking was performed mechanically twice a day and the milk weighed daily. The physical-chemical characteristics of the milk were evaluated by the ultrasound method and the lactation curves were estimated using the univariate parameter. The average milk yield was 5.34kg/milk/ day and the fat, protein, lactose and total non-fat solids contents were 5.3, 3.7, 6.0 and 10.7%, respectively. Lactation of the cows in second order of calving ended naturally at 180 days and the peak of milk production was reached between 51 and 60 days. Furthermore, there was no difference in milk composition in the different lactation periods. Keywords: cattle naturalized, conservation, lactation curve, lactation persistence BOVINO PRODUÇÃO LEITEIRA PROPRIEDADE FÍSICO QUÍMICA LACTAÇÃO 1643 317355 Belo Horizonte-MG Universidade Federal de Minas Gerais - Escola de Veterinaria 1983 2024-4007 Arquivo Brasileiro de Medicina Veterinária e Zootecnia (Brazil) 0102-0935 v. 70(2) p. 644-648; (2018) BR2024002351 https://www.scielo.br/j/abmvz/a/9JP6QxV8xfQDzPtxYg6cmLF/?format=pdf&lang=pt Analítica 301090 301090