Anais da Academia Brasileira de Ciências (Nov 2020)

Effects of the inclusion of açai oil in diet of prepartum Holstein cows on milk production, somatic cell counts and future lactation

  • DAIANE S. DOS SANTOS,
  • VANDERLEI KLAUCK,
  • CARINE F. SOUZA,
  • MATHEUS D. BALDISSERA,
  • CLEITON THEISEN,
  • BRUNA BORDIGNON,
  • DAVI F. ALBA,
  • JOÃO H. REIS,
  • ROGER R. GEBERT,
  • MARCELO VEDOVATTO,
  • ALEKSANDRO S. DA SILVA

DOI
https://doi.org/10.1590/0001-3765202020200149
Journal volume & issue
Vol. 92, no. 4

Abstract

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Abstract We measured the effects of açai oil in the diets of prepartum cows to evaluate health, milk production and quality. Sixteen Holstein cows were divided into two groups: SOY used as control, and AÇAI, test group. Occurred inclusion of 4% soybean or açai oils was provided in the concentrate starting at 20 days prepartum [d -20 to d 0 (partum-day)]. The AÇAI diet increased (P=0.01) milk production (d 10 and 20) and reduced somatic cell count (d 20). In milk, no effects were detected (P≥0.10) for concentration of fat, lactose or protein as well as in terms of serum concentration of calcium, albumin or triglycerides. AÇAI diet tended to increase (P=0.09) serum concentrations of total protein, glutathione transferase (d 4), and total antioxidant capacity (d 4 and 10) and increased (P≤0.05) globulin, gamma-glutamyl transferase, superoxide dismutase and glutathione peroxidase (d 4). Further, AÇAI diet reduced the serum concentration of creatine kinase (P≤0.05) (d 0, 4 and 10), reactive oxygen species (d 0 and 4) and lipoperoxidation (d 0) and tended to reduce aspartate transaminase activity (P=0.07; d 0 and 4). Açai oil in the diets in prepartum cows improved their health as well as milk production and quality.

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