Proteins, fats and total solids content in milk from Jersey cows raised in São Paulo State during the first month of lactation

Authors

  • Raquel Fraga Silva Raimondo Universidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Clínica Médica, Centro de Pesquisa e Diagnóstico de Enfermidades de Ruminates, São Paulo, SP
  • João Paulo Elsen Saut Universidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Clínica Médica, Centro de Pesquisa e Diagnóstico de Enfermidades de Ruminates, São Paulo, SP
  • Regiane Machado Souza Universidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Clínica Médica, Centro de Pesquisa e Diagnóstico de Enfermidades de Ruminates, São Paulo, SP
  • Mariana Tikuma Nunes Universidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Clínica Médica, Centro de Pesquisa e Diagnóstico de Enfermidades de Ruminates, São Paulo, SP
  • Eduardo Harry Birgel Junior Universidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Clínica Médica, Centro de Pesquisa e Diagnóstico de Enfermidades de Ruminates, São Paulo, SP

DOI:

https://doi.org/10.11606/issn.1678-4456.bjvras.2009.26784

Keywords:

Milk, Proteins, Fat, Total solids, Cattle Jersey breed, Colostral phase

Abstract

With the aim to establish reference values of the protein, fat and total solids of milk from Jersey cows, raised in the State of São Paulo, during the first month of lactation, as well as to evaluate the influence of the colostral phase, 418 milk samples, obtained from healthy mammary glands without bacterial growth, were analized. Milk samples were aseptically collected before milking and protein, fat and total solids determined by infrared radiation. The milk protein level decrease from first to second day of lactation, while milk total solids level decreased during the first 24 hours after parturition. Milk fat level oscillated in the first 3 days of lactation and then decreased to the minimum values between 15-30 days of lactation. We suggest, for the first 24 hours of lactation (colostral phase) the use of the following reference values: protein- between 7,35 and 11,45 g/dl; fat- between 0,98 and 2,00 g/dl ; total solids - between 12,39 and 19,45 g/dl

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Published

2009-10-01

Issue

Vol. 46 No. 5 (2009)

Section

UNDEFINIED

License

The journal content is authorized under the Creative Commons  BY-NC-SA  license (summary of the license: https://creativecommons.org/licenses/by-nc-sa/4.0 | full text of the license: https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode) 

How to Cite

1.
Raimondo RFS, Saut JPE, Souza RM, Nunes MT, Birgel Junior EH. Proteins, fats and total solids content in milk from Jersey cows raised in São Paulo State during the first month of lactation. Braz. J. Vet. Res. Anim. Sci. [Internet]. 2009 Oct. 1 [cited 2024 Dec. 29];46(5):355-62. Available from: https://revistas.usp.br/bjvras/article/view/26784