African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6688

Full Length Research Paper

Chemical profile, somatic cell count and milk production of Holstein, Girolando and Jersolando cows

Rafaella Belchior Brasil
  • Rafaella Belchior Brasil
  • Programa de Pós-Graduação em Ciência Animal, Escola de Veterinária e Zootecnia, Universidade Federal de Goiás. Brazil.
  • Google Scholar
Marco Antonio Pereira da Silva
  • Marco Antonio Pereira da Silva
  • Google Scholar
Thiago Soares Carvalho
  • Thiago Soares Carvalho
  • Instituto Federal Goiano ? Câmpus Rio Verde, Brazil.
  • Google Scholar
Jakeline Fernandes Cabral
  • Jakeline Fernandes Cabral
  • Instituto Federal Goiano ? Câmpus Rio Verde, Brazil.
  • Google Scholar
Julliano Costa Garcia
  • Julliano Costa Garcia
  • Instituto Federal Goiano ? Câmpus Rio Verde, Brazil.
  • Google Scholar
Edmar Soares Nicolau
  • Edmar Soares Nicolau
  • Laboratório de Qualidade do Leite - Centro de Pesquisa em Alimentos, Escola de Veterinária e Zootecnia, Universidade Federal de Goiás. Brazil.
  • Google Scholar
Rodrigo Balduino Soares Neves
  • Rodrigo Balduino Soares Neves
  • Google Scholar
Moacir Evandro Lage
  • Moacir Evandro Lage
  • Laboratório de Qualidade do Leite - Centro de Pesquisa em Alimentos, Escola de Veterinária e Zootecnia, Universidade Federal de Goiás. Brazil.
  • Google Scholar


  •  Received: 07 October 2014
  •  Accepted: 09 February 2015
  •  Published: 19 February 2015

Abstract

The aim of this study was to evaluate the chemical profile, somatic cell count (SCC) and milk production of Holstein, Girolando and Jersolando cows. Fresh milk samples were collected from 34 high-production cows, averaging 31 L/day, belonging to three genetic groups (Holstein, Girolando and Jersolando). Experimental design was completely randomized, in which data collected were submitted to analysis of variance considering the effects of genetic group on milk quality and production. Correlations between milk volume and fat, protein, lactose, total dry extract, defatted dry extract and SCC were assessed. Jersolando herd produced milk with higher content of solids compared to the Holstein and Girolando. In relation to milk production, Girolando cows stood out over the others. Correlations between volume and fat, protein, total dry extract and defatted dry extract were negative; however, lactose showed positive correlation. The dairy system evaluated in this study demonstrated potential to meet the quality requirements of milk related to SCC in the current period and also from 2014, showing that large investments in facilities are not required to obtain quality milk.

 

Key words: Correlation, mastitis, racial group, productivity, milk quality.