Effect of nicotinic acid supplementation on digestion, metabolism, microbiome, and production in late-lactation Holstein cows
R.B. Standish; A.D. Wright; N.L. Whitehouse; P.S. Erickson · 2024 · Journal of Dairy Science
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Abstract
ABSTRACT: The purpose of this experiment was to determine if nicotinic acid (NA) effects on dairy cows and rumen microbial characteristics are forage-type dependent (corn silage, CS; grass silage, GS). Four late-lactation (DIM = 225 ± 12 d) Holstein cows were used in a 4 × 4 Latin square design with a 2 × 2 factorial arrangement of treatments. The main effects were a CS (66.10% CS) based diet or a GS (79.59%) based diet with or without 12 g/d NA. Each experimental period lasted for 28 d. Milk production and milk components, blood metabolites, apparent total-tract nutrient digestibilities, minu
Abstract by R.B. Standish; A.D. Wright; N.L. Whitehouse; P.S. Erickson, Journal of Dairy Science (2024) — licensed CC BY 4.0.
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Metadata source: DOAJ · DOI 10.3168/jds.2023-24483