Efecto de la concentración de proteína y nitrógeno ureico sobre el rendimiento de proteína de la leche

  1. Govea-Luciano, Alejandra 1
  2. Gómez-Vázquez, Armando 1
  3. Pinos-Rodrígez, Juan Manuel 2
  4. Lorenzo-Rodríguez, Jose Manuel 3
  5. Martínez-Martínez, Ricardo 4
  6. Rojas-García, Adelaido Rafael 4
  1. 1 Universidad Juárez Autónoma de Tabasco
    info

    Universidad Juárez Autónoma de Tabasco

    Villahermosa, México

    ROR https://ror.org/04ee58018

  2. 2 Universidad Veracruzana
    info

    Universidad Veracruzana

    Xalapa, México

    ROR https://ror.org/03efxn362

  3. 3 Universidade de Vigo
    info

    Universidade de Vigo

    Vigo, España

    ROR https://ror.org/05rdf8595

  4. 4 Universidad Autónoma de Guerrero
    info

    Universidad Autónoma de Guerrero

    Acapulco, México

    ROR https://ror.org/054tbkd46

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Revista:
Ecosistemas y Recursos Agropecuarios

ISSN: 2007-901X,  2007-9028

Ano de publicación: 2021

Volume: 8

Número: 2

Tipo: Artigo

DOI: 10.19136/ERA.A8NII.2888 DIALNET GOOGLE SCHOLAR lock_openDialnet editor

Outras publicacións en: Ecosistemas y Recursos Agropecuarios

Resumo

We aimed to determine the effect of production level (low, medium and high) on milk protein (%), urea nitrogen concentrations (mg dL−1 ), and milk protein yield of dual-purpose cows (Bos taurus x Bos indicus). We allocated 30 multiparous cows to the following groups by daily milk production level: low (5.0 ± 1.4 kg), medium (7.5 ± 1.0 kg), and high (10.0 ± 1.4 kg). Urea nitrogen did not correlate with milk protein concentrations. Milk protein concentration decreased linearly (p < 0.05) as production level increased. Conversely, milk protein yield (kg day−1 ) increased linearly (p < 0.05) with production level. Milk urea nitrogen concentrations decreased quadratically (p < 0.05) as production level increased. Low-producing cows had the highest average urea nitrogen concentration. Medium- and high-producing cows had similarly low urea nitrogen concentrations (p > 0.05). Protein and nitrogen concentrations in dual-purpose cow milk are negatively associated with production levels.

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Fonte de datos: Dialnet