Lecture 1 - Intro to Livestock Nutrition

Yes

Is animal protein considered a complete protein, in that it supplies all 9 essential amino acids?

Recall

What type of livestock (use) play a major role in waste recycling and nutrient cycling?

Beef cattle

Which type of livestock (use and species) produces the greatest amount of GHG emissions?

Yes

Does the potential for complications in livestock management significantly increase with intensive production of livestock?

Nutrition

What is the term for the process of converting energy stored in food to useful products?

Concentrate

What is the term for a feed formulated to contain high amounts of nutrients per unit?

Diet

What is the term for the combination of ingredients designed to deliver nourishment?

Ration

What is the term for the quantity and frequency of delivering a particular diet to an animal?

Forage

What term, also known as fodder, refers to plant based material used to feed livestock?

Digestibility

What is the term for the ability of a feed to deliver nutrients upon digestion?

Supplement

What is the term for a substance used to fortify the diet?

Palatability

What is the term for the degree to which an animal will consume a feed voluntarily?

Yes

Do species, stage of life cycle, live weight, level of production, physiological well-being, and availability of feed stuff all affect the selection of diets for animals?

Gross

What type of energy contains all the energy in feed?

Metabolizable

Which type of energy refers to that used for heat or as retained energy (used for maintenance, growth, lactation)?

Energy

What is the term for the concept that is not considered a nutrient but represents molecules that carry calories?

Heat increment

What is the term for the energy lost through physiological processes such as respiration and digestion?

Net

Which category of energy is what is gained from metabolism, minus losses, that is used to maintain the body and carry out auxiliary functions and produce?

Yes

Is water considered a nutrient?

Nutrient

Wet chemistry and rapid dry analysis are both used to evaluate what content of feed stuff?

Dry matter, moisture

What are the two broad components into which all feeds are broken down?

Lipids

Which macromolecules are removed during ether extraction to produce ether extract, which is produced from dry matter during proximate analysis?

Crude fiber

What product, plus ash, is produced from boiling ether extract in acid and then alkali? This is called the Van Soest method of extraction.

Crude protein

What component of feed is measured via the Kjeldahl method and determines the nitrogen content of a sample, converting it to a level of this?

Ash

Which component of feed is produced by combustion of the sample to eliminate all organic content, of which this product is the remnant and contains all the inorganic material and minerals?

Nitrogen free extract

Which component of feed estimates the amount of sugars and starches in a feed?

60-90

Generally, the amount of water required by an animal is equal to what range in ml/Kg of liveweight? This is equal to 1 gallon per 100 pounds of an animal.

Cu, Co, I, Mg, Fe, Se, Zn

List the seven main trace minerals, using abbreviations.

Nutrition

What production factor has the most significant impact on an animals well-being and productivity? This includes effects on reproduction, thermoregulation, growth and tissue development, and health.