What question did this study set out to answer?

The study aimed to assess the effects of increasing narasin doses on performance and morphology in Nellore cattle.

March 21, 2026PLoS ONEOpen Access

Effects of increasing narasin doses on feedlot performance, feeding behavior, carcass traits, and rumen-cecum morphometrics in Nellore cattle

View Full Paper

Ask AI

Bookmark

Authors

Research evaluates narasin impact on performance and carcass quality in feedlot Nellore cattle, suggesting optimal dosing levels.

The study aimed to assess the effects of increasing narasin doses on performance and morphology in Nellore cattle.
128 Nellore yearling bulls allocated to 32 pens, 4 bulls/pen
Treatment groups: control, 13, 20, or 27 ppm of narasin
After a 14-day adaptation, animals fed a high-concentrate diet for 98 days
Parameters measured include feed performance, feeding behavior, and carcass traits
Positive linear effect of narasin on body weight (P = 0.02) and average daily gain (P = 0.01) during initial period
20 ppm of narasin improved feed efficiency (P = 0.03)
Increased meal durations noted at 20 ppm (P = 0.05)
Thickness of fat at the 12th rib improved at 20 ppm (P = 0.05)
Higher narasin levels reduced goblet cells in the cecum (P = 0.01)

Silva et al. (2026) studied this question.

View Full Paper

Ask AI

Bookmark