Animal Science Chps. 1,2,5,6

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Of the total energy in human food provided by plants what plant-based food group provides the greatest percent?

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1

Of the total energy in human food provided by plants what plant-based food group provides the greatest percent?

cereals

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2

Which of these continents contains the smallest population of sheep

north and central america

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3

Meat provides ________ of the animal protein consumed in the world.

48.4%

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4

Which animal by-product is used to produce buttons and jewelry

bones

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5

The highest population of swine can be found on which continent

Asia

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6

Which of the following is the least important contributor to total world meat supplies

goat

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7

What portion of the feed used in the USA livestock industry is inedible to humans

2/3

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8

_____ is the very fine underfur of the Kashmir goat

cashmere

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9

Pigs, cattle, and _____ provide the majority of the world's meat (excluding fish)

poultry

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10

Desertification is often the result of people acquiring too much livestock which ______ the land

fallow

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11

In the USA ____% of the protein consumed by the human population is derived from animal products

66

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12

The process of replacing a human organ with one from an animal is known as

xenotransplantation

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13

Although oxen and buffalos are both powerful draft animals _____ are faster on dry land

oxen

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14

On a worldwide basis, the animal that is the second largest producer of milk is the

buffalo

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15

two disciplines of animal science.

Physiology and biotechnology

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16

Biomedical research on animals has failed to add significantly to the average human lifespan

false

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17

the study of behavior in domestic animals is called animal rights

false

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18

in developed countries, animals generally contribute a lower percentage of total calories to the human diet than plants do

true

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19

Approximately what percent of the world's total calories are provided by plants

82%

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20

The production of pork has increased by ______ from 1995-2005

22.4%

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21

which of the following animals produce a fiber that is used to make the best horse blankets

yak

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22

Donkeys were domesticated by ______ BC

4000

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23

______ is the study of how diseases, parasites and environmental factors affect the productivity and welfare of an animal

animal health

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24

Livestock and aquatic animals provide ________ of the food supply for the United States.

27%

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25

In developed countries the term used to describe edible animal by-product is

variety meats

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26

____ is the discipline of animal science dealing with the study of the physical and chemical processes of an animal or the body systems and cells of an animal

physiology

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27

_____ is the term used to describe the relationship of the nutrients found in a food compared to the calories of the food

nutrient density

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28

The dependence of humans on domesticated animals was carefully planned by the early domesticators.

false

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29

three items produced from animal products

Cellophane, insecticides, and water filters

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30

the proportion of animal foods in the human food supply can be used to gauge a country's living standard

true

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31

___ the study of the body's need and mechanism of acquiring, digesting, transporting and metabolizing nutrients

Nutrition

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32

A _____ is a chemical element or compound that supports normal growth, reproduction, lactation or maintenance of life processes

nutrient

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33

___ is equal to fecal loss from the animal subtracted from the gross energy of the nutrients

digestible energy

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34

Basic types of analytical method used in analyzing feed for nutrient content

microbiological, biological and chemical procedures

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35

essential amino acids

methionine, histidine, arginine

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36

water soluable vitamins are

Vitamin B and C

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37

Factors affecting nutrient utilization of feed by animals

species of animal, physical form of feed, nutrient balance, age

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38

_____ partitions feed into water, ash, crude protein, crude fiber, ether extract, and nitrogen extract

proximate analysis

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39

a basic nutritionist is first and foremost interested in maximal cost effective feeding in a production setting

false

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40

____ is the name of the material consisting of food, saliva and gastric secretions as it leaves the stomach

chyme

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41

____ the secretion from the liver that is stored in the gallbladder prior to being released into the duodenum

bile

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42

____ is composed of the rumen, reticulum, and omasum in ruminants

forestomach

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43

What percent of a ruminant animal's total energy needs is provided by volatile fatty acids

50-70

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44

What alkaline secretions mix with the chyme in the duodenum of the animal

bile, succus entericus, pancreatic juices

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45

What percent of the horses's digestive tract is accounted for by the stomach

8%

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46

the physical and mechanical actions of chewing

mastication

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47

the act of swallowing or passing food or water from the mouth to the first stomach compartment via the esophagus

deglutition

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48

the removal of gas from the rumen via the esophagus

eructation

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49

the cow is the only farm animal in which salivary amylase is secreted in the saliva

false

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50

___ is the combined set of a tions and biological functions of a living being directed at producing an offspring

reproduction

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51

___ is the term used in nutrition to refer to the set of inorganic elements thus far established as necessary for life in one or more animal species

minerals

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52

Carbs contain approximately ___ kilocalories of energy per gram

4.0

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53

Approximately how many dietary essential amino acids are there

50

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54

the finishing phase for livestock requires a higher percentage of the total diet to be protein than does the growth phase

false

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55

mono gastric animal only has ___ stomach

one

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56

_____ is the combination of nutrients needed for basal metabolism and normal animal movement

the maintenance nutrient requirement

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57

the ____ is the common orifice for waste, elimination, copulation and egg laying in female birds

cloaca

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58

How many gallons of saliva might a horse secrete if fed hay

10

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59

how many liters per day of succus entericus might a human secrete

20

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60

How many weeks of age can a ruminant animal begin to ferment solid foods

6-8 weeks

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61

It is impossible to a horse to regurgitate due to the one way peristaltic movement of the esophagus

true

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62

The proventriculus and abomasum are names for the glandular stomachs in some species

true

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63

the main function of the ______ of the ruminate is to allow the animals to utilize roughage as a source of energy

complex stomach

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64

The earliest domestic food-producing animal species was the

sheep

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65

___ is the technological applications of biology

biotechnology

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66

The pelts of the ____ sheep are used for hats and collars in northern Asia

kuche

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67

____ lambs are best known for the persian lambskin produced from them

karakul

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68

Largest number of camels in the world can be found in Asia

false

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69

____ are used by some humans for construction material

animal body wastes

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70

The domestication of cattle was believe to have been accomplished by ____ BC

6500

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71

World production of honey is estimated at _____ million/MT per year by the FAO of the UN

1.7

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72

Which of the by products is from a renewable a source (bone,blood,skin,wool)

wool

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73

________ animals provide power for many Asian, African, and South American farmers.

draft

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74

Buffalo, goats and sheep provide a source of milk for people

true

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75

the majority of ____ in the U.S diet is provided by animal products

vitamin B12

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76

the combination of pigs, poultry and beef produce _____. percent of all meat from domestic species

93.2

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77

Many entertainment industries are based on animal use

true

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78

____ vitamins are generally involved in regulating body functions such as vision, blood clotting and, tissue maintenance

fat-soluble

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79

____ is the major carb found in forages such as hay and silage

cellulose

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80

On equal weight basis, fats provide _____ times more energy to the animal than carbs do

2.25

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81

the ___ is composed of the colon, cecum, and the rectum in animals

large intestine

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82

_____ is the enzyme in saliva that specifically attacks cellulose in herbivores

cellulase

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83

What doesn't enter the bloodstream once its absorbed from the small intestine

fat soluble vitamins

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84

The size of the ceca in the avian is primarily influenced by the amount of protein in the diet

false

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85

Trypsin, chymotrypsin, and carboxypeptidase are three enzymes that continue protein digestion start by pepsin in gastric juices of swine

true

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86

____ is the nutrient whose deficiency will cause death of an animal faster than any other

water

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87

Which components of feed can be analyzes with infrared lights

moisture, protein, lipid

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88

Sodium and chlorine are micromineral

false

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89

the practice of _____ or eating feces is sometimes used by horses if they are on a poor diet

cecotrophy

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90

An ___ is an animal that selects a diet of both plant matter and meat

omnivore

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91

What is the capacity of a full grown pig's stomach

2 gallons

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92

the reticular groove acts as a bypass of the rumen and empties it contents into the omasum in the young calf

true

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93

the ruminant animal provides an excellent method for converting low-quality into high-quality food products

true

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94

A _____ trial measures total intake and secretion of feed so that retention by the animal body's can be measured

metabolism

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95

What is not an essential amino acid

ascorbic acid

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96

___ is the physical, chemical, and enzymatic means the body uses to render a feedstuff ready for absorption

digestion

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97

Egg production by chickens is increasing at a rate of ____ per year on a worldwide basis

2.1%

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98

The combination of pigs, poultry, and beef produce ___ percent of all meat from the domestic species

93.2%

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99

Approximately what percent of the world's total calories are provided by plants?

82.3%

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100

Animal science is define as the combination of disciplines that together comprise the study of ________

domestic animals

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