General Zootechnics A

Question 1

According to digestive track anatomy and physiology, how are animal grouped? (3)

Answer 1

Simple non-ruminants
Ruminants
Non-ruminant herbivores

Question 2

Of the 3 groups of animal according to digestive track anatomy and physiology, which one does not depend much on microbial digestion in any part of the gut, but instead relies on chemical digestion of food thru secretion of digestive enzymes in the gut

Answer 2

Simple non-ruminants

Question 3

What animals are considered simple non-ruminants/monogastric animals? (6)

Answer 3

Swine
Poultry
Dogs
Cats
Rats
Primates

Question 4

What are the major segments of the simple non-ruminants?

Answer 4

Oral cavity
Stomach
Small intestine
Large intestine

Question 5

What happens in the oral cavity for digestion? (2)

Answer 5

Physical digestion to smaller pieces
Hydrolyzation of starch to maltose by salivary amylases

Question 6

What happens in the stomach of adult simple non-ruminants for digestion? (4)

Answer 6

(1)Storage of ingested food
Hydrochloric acid secretion: (2)kills bacteria, (3)hydrolyzation proteins due to acidic environment, (4)pepsin activation

Question 7

What happens in the stomach of nursing simple non-ruminants for digestion? (3)

Answer 7

(1)Renin secretion: (2)Coagulates casein in milk,(3)Promotes proteolytic milk digestion

Question 8

What happens in the small intestine of adult simple non-ruminants for digestion? (2)

Answer 8

(1)Digestion,
(2)Absorption in duodenum, jejunum and ileum

Question 9

What are the digestive products that the pacreas help degrade in the stomach? (3)

Answer 9

Proteins
Cholesterols
Lipids

Question 10

What are the 14 primary enzymes of the digestive tract?

Answer 10

Amylase
Aminopeptidase
Carboxypeptidase
Chymotrypsin
Dipeptidase
Lactase
Lipase
Maltase
Nucleotidase
Nucleosidase
Pepsin
Rennin
Sucrase
Trypsin

Question 11

What enzymes secreted by the pancreas degrades proteins? (2)

Answer 11

Trypsin
Chymotrypsin

Question 12

Of the two enzymes secreted by the pancreas that degrade proteins, which one turns protein into peptides?

Answer 12

Trypsin

Question 13

Of the two enzymes secreted by the pancreas that degrade proteins, which one turns protein into amino acids?

Answer 13

Chymotrypsin

Question 14

Of the two enzymes secreted by the pancreas that degrade proteins, which one turns protein into amino acids?

Answer 14

Chymotrypsin

Question 15

What enzyme secreted by the pancreas degrade cholesterol/carbohydrates?

Answer 15

Amylase

Question 16

What enzyme secreted by the pancreas degrades lipids/fats?

Answer 16

Lipase

Question 17

What are the most common food sources in digestion? (4)

Answer 17

Carbohydrates
Fats
Oils
Proteins

Question 18

What are the enzymes that breaks down carbohydrates? (4)

Answer 18

Amylase
Maltase
Lactase
Sucrase

Question 19

What is the enzyme that breaks down fats and oils?

Answer 19

Lipase

Question 20

What are the enzymes that breaks down proteins? (8)

Answer 20

Rennin
Pepsin
Trypsin
Chymotrypsin
Carboxypeptidase
Aminopeptidase
Dipeptidase
Nucleotidase

Question 21

Of the 13 primary digestive enzymes, this enzyme originates from the saliva and pancreas

Answer 21

Amylase

Question 22

Of the 13 primary digestive enzymes, these enzyme originates from the small intestine only (6)?

Answer 22

Maltase
Lactase
Sucrase
Aminopeptidase
Dipeptidase
Nucleotidase

Question 23

Of the 13 primary digestive enzymes, this enzyme originates from the gastric mucosa only?

Answer 23

Lipase
Pepsin
Rennin (young)

Question 24

Of the enzymes that breaks down carbohydrates, what are the end product of starch, glycogen or dextrin?

Answer 24

Maltose
Glucose

Question 25

Of the enzymes that breaks down carbohydrates, what are the end product of maltose?

Answer 25

Glucose and glucose

Question 26

Of the enzymes that breaks down carbohydrates, what are the end product of lactose?

Answer 26

Glucose Galactose

Question 27

When proteins and amino acids undergo bacterial fermentation in the large intestine, what is produced?

Answer 27

Ammonia

Question 28

Of the enzymes that breaks down carbohydrates, what are the end product of sucrose?

Answer 28

Glucose Fructose

Question 29

What happens to the ammonia released from microbial fermentation of proteins and amino acids?

Answer 29

-Absorbed via portal blood -Converteed to urea in the liver

Question 30

What sections of the large intestine comprises the hindgut?

Answer 30

Cecum Colon Rectum

Question 31

What vitamin is synthesized in the hindgut due to bacterial growth?

Answer 31

B-complex vitamins

Question 32

What are the animals that are strict carnivores? (2)

Answer 32

Minks Cats

Question 33

Why are cats and minks strict carnivores?

Answer 33

-Shorter intestinal tract -Rapid transit of ingesta -High digestibility of their meat-based diet

Question 34

What animal tends to have long small intestines and an enlarged hindgut with a much more significant microbial population and some fiber digestion?

Answer 34

Omnivores (swine)

Question 35

In terms of digestive track anatomy and physiology. the avian digestive system is special. What are the major segments of the avian digestive tract?

Answer 35

Beak Crop Proventriculus Gizzard

Question 36

Section of the avian foregut that acts as temporary site for moistening of food.

Answer 36

Crop

Question 37

Also known as glandular stomach of avians

Answer 37

Proventriculus

Question 38

Also known as the muscular stomach of avians

Answer 38

Gizzard

Question 39

The two birds that produces crop milk to feed young up to 2 week old

Answer 39

Doves Pigeons

Question 40

What is the main difference of ruminant stomach compared to non-ruminant stomachs?

Answer 40

-Large, compartmentalized stomach -Stomach inhabited by microbes