Exam 1 (Form A) - Intro to Animal Science Lecture

Chapters 1-6

True or False? Explain if false: Domestication of animals brought about convenience of hunter-gathers to transition into farmers.

True

True or False? Explain if false: Main purpose of the digestive tract is to intake nutrients and excrete waste from the body.

False - Its main purpose it to metabolize and absorb nutrients

True or False? Explain if false: Skins and hides are considered a renewable product in animal agriculture.

False - To get the skin/hide you must kill the animal, therefore it is non-renewable

True or False? Explain if false: Carbohydrates are used in nutrition for the development of lean tissue, enzymes, and hormones.

False - Carbohydrates provide energy; Protein is for the development of lean tissue, enzymes, and hormones

True or False? Explain if false: Adaptation is the sum of changes that allow an animal to respond to an environmental stress or stimulus in their lifetime.

True

True or False? Explain if false: In developed countries, edible by products are classified as variety meats.

True

True or False? Explain if false: Internal stressors are those that affect an individual animal by gaining entrance into its body, such as a pathogen or toxin.

True

True or False? Explain if false: Fat soluble vitamins are those that include vitamins A, D, E, and K

True

True or False? Explain if false: Ruminants are those animals that have a simple, one stomach digestive system.

False - Ruminants have a complex stomach; monogastric animals are those with a simple stomach

True or False? Explain if false: Ethology is the science of heredity and variation of trait characteristics.

False - Ethology is the study of breeding and genetics

Arkansas agriculture is in the top five for the production of what?

A. Catfish

B. Turkeys

C. Peanuts

D. A and B

E. A and C

F. B and C

G. All of the Above

H. None of the Above

D. A and B

Major sources of protein supplementation in:

A. Oilseed meal

B. Blood meal

C. Dried skim milk

D. A and B

E. A and C

F. B and C

G. All of the Above

H. None of the Above

G. All of the Above

Some of the stress of natural and/or artificial environment can be classified into which of the following categories:

A. Nutritional

B. Psychological

C. Geographical

D. Physiological

E. A and B

F. A and C

G. A, C, and D

H. A, B, and C

I. All of the Above

J. None of the Above

F. A and C

The parts of proximate analysis include:

A. Ash

B. Gross energy

C. Crude protein

D. A and B

E. A and C

F. All of the Above

G. None of the Above

E. A and C

The large intestine is made up of what parts:

A. Deodenum

B. Jejunum

C. Ileum

D. All of the Above

E. None of the Above

E. None of the Above

Draw a basic sketch of a monogastric digestive system.

Draw a basic sketch of a ruminant digestive system.

During a digestion trial, a steer ate 185 lbs. of alfalfa. The alfalfa contained 765 ppm copper. The digestion trial was 21 days long. During the trial, the steer excreted 525 lbs. of feces, which were analyzed and found to contain 205 ppm of copper. Calculate the digestion coefficient for the manganese concentration of hay.

((185*765) – (525*205)) / (185*765)) * 100 = 24.46%

Meat Science

Handling of meat products

Physiological Change

Adaptive means of the biochemistry of the body

Variety Meat

Specialty food of developed countries

Animal Health

State of homeostasis

Nutrient

Provide nourishment to the body

Prehension

First step of digestion

Finishing

Final feeding stage

Digestibility

Feedstuff can be absorbed

Domestic animals brought the need to understand what (five) management concerns?

Waste, Disease, Health concerns, Nutrition, Mass production

What are four things that nutrition can affect in animal management/welfare?

Finishing, Reproduction, Growth, Lactation, Maintenance of Life, Health

What are the three areas of concern that have helped increased cost effectiveness for livestock management and food production?

Technology, Genetics, Maintenance

Name five essential nutrients that animals need on a daily basis:

Water, Carbohydrates, Proteins, Fats, Vitamins, Minerals

What is the main purpose of the digestive tract? What are the 3 distinct ways this occurs?

Digestive tract breaks down feedstuff so it can be absorbed and metabolized by the body

3 distinct ways in which it occurs: Physical/mechanical chewing (mastication) and muscular action of G.I tract (peristalsis), Chemical breakdown, Enzymatic digestion