Date of Award:
5-1988
Document Type:
Thesis
Degree Name:
Master of Science (MS)
Department:
Animal, Dairy, and Veterinary Sciences
Committee Chair(s)
Michael J. Arambel
Committee
Michael J. Arambel
Committee
Ray Cartee
Committee
Robert Lamb
Abstract
Third-cutting alfalfa hay harvested at bud stage in each of 2 yrs, treated with a live bacterial inoculant, packed in polyethylene-bonded bags and allowed to ensile. In both years, treated haylage had a lower pH, and a period effect was found for pH and mold count, regardless of treatment. In year 1, there was a period effect found for acid detergent fiber. In year 2, mean lactic-acid-producing bacteria numbers (log 10) were significantly higher for treated haylage (9.69 and 10.36) for control and treated haylage, respectively). Regardless of treatment, lactic-acid-producing bacteria numbers and water soluble carbohydrates significantly declined through time.
For both years, treated haylage was fed to early-lactating dairy cows at 60% of the ration dry matter. In year 1, lactating cows were fed treated haylage for a 10-wk period, and no differences were observed in milk production performance or dry matter intake over cows fed untreated haylage.
In year 2, cows were fed for a 6-wk period, and no differences were detected between treatments for milk production, milk composition, or dry matter intake.
Checksum
80629ce42fdea08bc7d4fd17bca1f015
Recommended Citation
Kent, Barb, "Effect of Bacterial Inoculant on Alfalfa Haylage: Ensiling Characteristics and Milk Production Response when Fed to Dairy Cows in Early Lactation" (1988). All Graduate Theses and Dissertations, Spring 1920 to Summer 2023. 4083.
https://digitalcommons.usu.edu/etd/4083
Included in
Copyright for this work is retained by the student. If you have any questions regarding the inclusion of this work in the Digital Commons, please email us at .