September 20, 2025Journal of Dairy ScienceOpen Access

Effect of a blend of palmitic and stearic acid on transfer of preformed fatty acids into milk fat using an 18 C n-3 fatty acid perturbation model

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Observational analysis demonstrates altered transfer of fatty acids into milk fat in cows, highlighting dietary influences.

Increasing dietary fat improved milk yield by 2.2 kg/d, indicating dietary composition significantly impacts milk production.
In the low-fat diet, total transfer of α-linolenic acid was 51.9%, but decreased to 43.3% with higher dietary fat.
Transfer efficiency of milk fat was responsive to fat supply, showing dynamic partitioning of absorbed fatty acids.
Majority of fatty acids transferred to milk fat occurred within 24 hours, reinforcing acute dietary influence on fat dynamics.

Adeniji et al. (2025) studied this question.

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