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Home » Authors » Marc-Antoine Guesthier
Marc-Antoine Guesthier

Marc-Antoine Guesthier

Dairy Technology Development / Purina/Cargill Animal Nutrition & Health
Email Marc-Antoine Guesthier
Articles

ARTICLES

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Durabilité des vaches laitières : un chemin vers un avenir plus vert

Les producteurs laitiers peuvent améliorer leur rentabilité tout en contribuant à un environnement plus durable en améliorant l’efficacité alimentaire, en réduisant la production de méthane, en gérant efficacement le fumier et en améliorant le bien-être animal.
June 16, 2025
Marc-Antoine Guesthier

Ces dernières années, l’impact sur l’environnement et le développement durable est devenue un enjeu crucial dans divers secteurs, y compris l’agriculture. 


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Dairy cow sustainability: A path to a greener future

Dairy producers can improve profitability while simultaneously creating a more sustainable environment by improving feed efficiency, reducing methane production, efficiently managing manure and improving animal welfare.
June 3, 2025
Marc-Antoine Guesthier

In recent years, sustainability has become a crucial focus in various industries, including agriculture. Dairy farming has made significant strides toward more sustainable practices and more importantly toward understanding dairy production's environmental impacts.


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What is your herd's lifetime productivity?

Genetics, environment, nutrition and overall health contribute to the longevity of a cow. Consider how your management style affects the durability of your herd.
October 22, 2024
Marc-Antoine Guesthier

By focusing on key factors that can influence your herd lifetime productivity and taking a holistic view of your farms, you can identify opportunities to maximize your herd efficiency and the long-term sustainability of your operation.


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Enhancing milkfat yield in dairy cows: Proven techniques and best practices

A dairy's bottom line depends on milkfat. Look at nutrition and beyond to improve your yield.
September 12, 2023
Marc-Antoine Guesthier

By optimizing nutrition, maintaining optimal rumen health, utilizing genetics and breeding strategies, and focusing on good cow comfort and management practices, producers can significantly improve milkfat production.


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Changements physiologiques et métaboliques causés par le stress thermique chez les vaches laitières

Le stress dû à la chaleur en été peut entraîner des problèmes qui perdurent en automne et en hiver.
April 28, 2023
Catherine Delorme Tetreault and Marc-Antoine Guesthier

Le stress thermique peut être défini comme la condition qu’une vache laitière éprouve lorsqu'elle est incapable de dissiper l'excès de chaleur de son environnement.


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Physiological and metabolic changes caused by heat stress

Heat stress in summer can lead to problems even in fall and winter.
March 23, 2023
Catherine Delorme Tetreault and Marc-Antoine Guesthier

Heat stress and its effects can begin at relatively low temperatures combined with high humidity. The effects can be long-lasting and wreak havoc on production, reproduction.


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The protein balancing act

March 31, 2021
Marc-Antoine Guesthier
It is a balancing act when it comes to feeding protein. Dairy cows do not have a requirement for crude protein – instead, they require amino acids, the building blocks of protein. The main sources of amino acids are:
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Feed bioactive metabolites to support growth, immunity and better calf performance

March 1, 2020
Marc-Antoine Guesthier
Raising replacement animals is a key segment of many dairy operations. Not only does it represent a significant cost, but it also demands an important investment in time and dedication to raise highly performing heifers.
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Milk fatty acid analysis: How will it help your farm?

December 9, 2019
Marc-Antoine Guesthier and Maxime Tarte
Canada’s dairy industry has made great progress in access and usage of data available on-farm in the past years. Information on milk, specifically data on milk component and urea analysis at each delivery, can improve our knowledge of the feed efficiency of our herds and dramatically speed up the response time to a change.
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How to maximize the strength of the herd by addressing the weakness of the individual

August 29, 2019
Marc-Antoine Guesthier and Clemence Nash
Precision dairy technologies are advancing at an exponential rate. These technologies are allowing us to track and monitor an individual cow’s activity, rumination, production and even location in a pen on a daily (or even hourly) basis. But with these advancements in individual cow monitoring, we sometimes forget that these individual cows do not function independently of one another in a herd. A cow is affected by how well she can access the resources she needs in a herd, both in a tiestall and a freestall environment.
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View All Articles by Marc-Antoine Guesthier
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