Work

Effects of Saccharomyces cerevisiae CNCM I-1077 delivered via free choice mineral on cow and calf performance parameters in a commercial beef operation

Year: 2025

Type: article

Abstract: • Cow-calf pairs are exposed to forages of varying nutritive quality during the grazing season, and that is converted to live pounds to determine ranch profitability. • Saccharomyces cerevisiae (CNCM I-1077), a well-documented active dry yeast, improves ruminal fiber digestibility of low- to high-quality forages, thus enhancing forage and rangeland use and animal performance. • We offered 436 multiparous red Angus cows a free-choice mineral supplement with and without the referenced active dry yeast, while they were grazing on native rangeland in Kansas between February and August of 2023. • Cows consuming the active dry yeast mineral supplement had greater body-condition scores and weaned heavier calves compared to cows not consuming the active dry yeast at the time of weaning. • Our data suggest that providing Saccharomyces cerevisiae CNCM I-1077 via a free-choice mineral to grazing cow-calf pairs improves both cow and calf performance and the productivity of native rangeland, resulting in greater returns for cattle producers.

Source: Rangelands

DOI: 10.1016/j.rala.2025.11.003

Authors: Paige R. Adams, Melissa Jolly-Breithaupt, Clothilde Villot, Mark Spare, Kip Karges

Institutions: Lallemand (France), Abbotsford Veterinary Clinic, Charles George VA Medical Center, Ashford Hospital, Wansbeck General Hospital

Language: English

Topic: Ruminant Nutrition and Digestive Physiology

Subfield: Agronomy and Crop Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: hybrid

Estimated APC paid: $1,500