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Home » Authors » David Ledgerwood
David Ledgerwood

David Ledgerwood

Technical Service Manager – Silage Inoculants and Cattle Probiotics / Chr. Hansen Animal Health & Nutrition
Articles

ARTICLES

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Gestion des mangeoires : Fournir un accès illimité à des aliments uniformément mélangés

Une opportunité de réduire le coût marginal de l’alimentation peut être trouvée dans des rations parfaitement formulées avec des fourrages stables ajustés pour la matière sèche et des refus à 1 %.
April 28, 2023
Keith A. Bryan, David Ledgerwood, and Kimberley Morrill

L’art de la nutrition laitière a beaucoup évolué au fil des ans. L’époque où les nutritionnistes laitiers se contentaient d’équilibrer les rations est révolue.


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Feedbunk management: Access to uniformly mixed feed 24 hours a day

Marginal milk opportunity can be found in perfectly formulated rations with stable forages adjusted for dry matter and 1% refusals.
January 12, 2023
Keith A. Bryan, David Ledgerwood, and Kimberley Morrill

One very important management practice that may be the least expensive with the greatest potential return is proper feedbunk management.


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The rumen and beyond: Effective spore-forming bacteria as probiotics

September 29, 2022
Keith A. Bryan, David Ledgerwood, and Jennifer Schutz

As we progress through summer grazing of spring-calving cow-calf pairs and prepare for fall calving, fall run of preconditioned and high-risk calves, and the threat of increased pathogen loads (E. coli, clostridium, salmonella) in feedlot cattle, herd health and overall performance should be top of mind.


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Having the best of both worlds in your dairy

August 12, 2022
Keith A. Bryan, David Ledgerwood, and Kimberley Morrill

When was the last time you experienced “the best of both worlds?” As a figure of speech, you simply enjoyed the advantages of two very different things or situations at the same time.


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A pen of misfits: Don’t let your transition calves be the weak link

February 22, 2022
Keith A. Bryan, David Ledgerwood, and Kimberley Morrill
When we hear the phrase “challenges in the transition pen,” we often think about the lactating herd, paying particular attention to the transition from a dry, non-lactating animal to a highly productive lactating animal.
Read More
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On-farm dry manure bedding management: Goals and pitfalls

October 27, 2021
Keith A. Bryan and David Ledgerwood
As we continue to improve on-farm efficiencies, it’s important to look at new areas of opportunities. One area needing review is manure management, specifically the process of converting manure solids, separated or not, into safe, high-quality bedding.
Read More
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March ‘mycotoxin madness’

February 5, 2021
Keith A. Bryan, David Ledgerwood, and Kimberley Morrill
Every March, the madness begins. Avid college basketball fans will recognize the reference as more than 130 men’s and women’s Division 1 college basketball teams vie for the championship trophies, knowing full well that for all but two teams, their final game of the season will be a loss.
Read More

Supporting normal with probiotics

June 11, 2020
Keith A. Bryan, David Ledgerwood, Steve Lerner, and Kimberley Morrill
According to the American Institute of Stress, a popular definition of stress is “a condition or feeling experienced when a person perceives that demands exceed the personal and social resources the individual is able to mobilize”.
Read More

Probiotics play an essential role in early calfhood diarrhea prevention

May 6, 2020
Keith A. Bryan, David Ledgerwood, and Kimberley Morrill
Day in and day out, dairy farmers provide the best in animal husbandry. There are occasions when animals get sick and need antimicrobial therapy to overcome a specific disease challenge.
Read More

First-cutting haylage in the western U.S.

April 30, 2020
David Ledgerwood
Forage quality is of paramount importance to modern dairy operations where efficient production of home-grown forages drives profitability. With the price of alfalfa hay on the rise, and availability decreasing, a focus on producing and feeding quality over quantity has been a primary factor for producers looking to make milk versus “buying it.”
Read More
View All Articles by David Ledgerwood
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