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Home » Authors » Gustavo Cruz

Articles by Gustavo Cruz

Q

The language of nutrition: MP (Metabolizable protein)

February 6, 2015
Gustavo Cruz
In layman’s terms, what does metabolizable protein (MP) mean? Metabolizable protein (MP) is the total amount of amino acid absorbed in the small intestine. The main sources of amino acid to the intestine are rumen-undegradable protein (RUP), microbial crude protein (MCP), and to a lesser extent, endogenous crude protein (ECP).
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The benefits, challenges and future of rumen pH sensors

October 24, 2014
Gustavo Cruz
Ruminal acidosis continues to be a common digestive disorder in feedlot cattle and in dairy cows, and it occurs when the rate of acid production is greater than the rate at which acid is neutralized (saliva buffering) and cleared (absorption) from the rumen.
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Impaired gut integrity and its consequences

July 24, 2014
Gustavo Cruz and Bethany Oglesby
Gut integrity is the unimpaired condition of the gut and maintenance of its essential functions to absorb nutrients and act as a barrier to pathogens. The inside of the gastrointestinal tract is considered to be a part of the external environment because it is a continuous tube connected to the exterior and contains ingested foreign material.
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Acidosis and the ‘hungry games’

November 24, 2013
Gustavo Cruz, Rodrigo Pacheco, and Ana Verdugo
For millions of years, as the result of natural selection, ruminants developed the capability to obtain the greatest part of the energy necessary to reproduce and maintain vital function by ruminal microbial fermentation.
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Maternal nutrition and its effect on calf growth, development

October 24, 2013
Gustavo Cruz and Ana Verdugo
Since 2002, when Dr. David Barker and colleagues proposed the hypothesis of maternal nutrition impacting post-natal characteristics, animal scientists have started to take a closer look into this area.
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Milk fat depression: An old issue with new insights

May 20, 2013
Gustavo Cruz and Guillermo Schroeder
Low-milk-fat syndrome, commonly known as milk fat depression (MFD), has been studied for approximately 170 years. Many hypotheses have been evaluated in order to explain the biological mechanisms by which nutrition could modulate milk fat percentage.
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Updates on feeding transition cows

February 28, 2013
Christopher Canale and Gustavo Cruz
During the postpartum period, dairy cows enter a period of tissue catabolism called negative energy balance (NEB). Simply put, the amount of energy consumed is less than what’s required; this imbalance causes a cascade of metabolic failures that can be minimized by using a holistic approach.
Read More

Grain vs. grass finishing: Tracing the end results

July 24, 2012
Gustavo Cruz
Currently, the U.S. is the world’s largest beef producer, representing approximately 21 percent of the world’s beef production – but it’s the fourth-leading country in world beef exports, behind Brazil, Australia and India.
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