Nutrition Basics
This term is defined as the interrelated steps by which an organism assimilates food for growth, repair, and maintenance.
What is nutrition?
This industry sector relies on feed efficiency because livestock nutrition directly impacts profitability.
What is agriculture?
This classic system of chemical feed evaluation separates feed into crude protein, crude fat, crude fiber, ash, nitrogen-free extract, and moisture.
What is proximate analysis?
This system replaced crude fiber analysis and separates plant materials into NDF, ADF, and cell contents
What is the Van Soest system (detergent fiber analysis)?
This fiber system replaced crude fiber analysis and uses detergents to separate plant material into fractions
What is the Van Soest system (detergent fiber analysis)?
A chemical element or compound that supports growth, reproduction, lactation, or life processes is known as this.
What is a nutrient?
Feed costs typically account for this percentage of total animal production costs.
What is 50–60%?
In the proximate system, crude protein is measured by determining this element.
What is nitrogen?
n the Van Soest system, Neutral Detergent Fiber (NDF) contains these three plant components.
What are cellulose, hemicellulose, and lignin?
The Neutral Detergent Fiber (NDF) fraction contains these three structural components of plants.
What are cellulose, hemicellulose, and lignin?
These are the six classes of nutrients.
What are water, protein, carbohydrates, lipids, vitamins, and minerals?
Animal nutrition is important for society, agriculture, and these three key productive functions.
What are growth, reproduction, and lactation?
The Kjeldahl and Leco methods are two techniques for determining this nutrient fraction.
What is crude protein?
In the Van Soest system, Acid Detergent Fiber (ADF) contains only these two components.
What are cellulose and lignin?
This Van Soest fiber fraction is most useful for predicting an animal’s voluntary feed intake.
What is Neutral Detergent Fiber (NDF)?
One gram of carbohydrate or protein provides this many kilocalories of energy.
What is 4 kcal?
he success of animal production depends on this key concept: efficient use of ________.
What are nutrients?
The “ether extract” portion of proximate analysis primarily measures this nutrient category.
What are fats (lipids)?
This rapid, nondestructive method uses light reflectance to predict nutrient content in feed samples.
What is Near Infrared Reflectance (NIR) spectroscopy?
Feeds high in NDF are generally less digestible and cause this effect on animal feed intake.
What is a reduction in feed intake (because feed stays longer in the digestive tract)?
This nutrient is the most abundant in the body and critical for life, making up over 50% of animal body composition.
What is water?
This chronic disease is the leading cause of death in the United States and is closely tied to nutrition.
What is heart disease?
This proximate fraction is calculated, not measured directly, and represents highly digestible carbohydrates.
What is nitrogen-free extract (NFE)?
A key limitation of Near Infrared Reflectance (NIR) spectroscopy is its dependence on this process involving hundreds of samples.
What is calibration?
This fraction of the Van Soest system includes lipids, sugars, pectins, soluble proteins, starch, and other soluble matter.
What are cell contents?