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September 5, 2025Veterinariya Zootekhniya i Biotekhnologiya

The ability to maintain productive qualities with age in holstein cows

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Authors

AKAnna V. KharchenkoFBFerdaus R. BakayAKAnna N. Krovikova

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Overview

Observational analysis finds improved milk yield in lactating Holstein cows, indicating stable fat and protein levels.

Key Points

  • Milk yield during the second lactation increased to 10,571 kg, revealing the productive potential of Holstein cows.
  • The fat content in milk remained stable at around 3.96%, which is significant for high-yield dairy cows.
  • A repeatability coefficient of r=0.97 was found between the second and third lactation, demonstrating consistent productivity.
  • Milk yield growth continued through the sixth lactation, achieving a peak of 11,490 kg, supporting long-term productivity.

Cite This Study

Kharchenko et al. (2025) studied this question.

synapsesocial.com/papers/68bb5f586d6d5674bcd036c5https://doi.org/10.36871/vet.zoo.bio.202509113
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