超星Animal Nutrition期末答案(学习通2023题目答案)
84 min read超星Animal Nutrition期末答案(学习通2023题目答案)
Unit 1：Nutrients and their sources
1、超星( ) is 末答negatively related to animal body water.
A、Fat
B、案学Protein
C、习通Mineral
D、题目Carbohydrate
2、答案（ ）is 超星the most abundant chemical element in plants and animals.
A、Oxygen
B、末答Carbon
C、案学Hydrogen
D、习通Nitrogen
3、题目Carbohydrates don’t include（ ）.
A、答案Cellulose
B、超星Hemicellulose
C、末答Crude fiber
D、案学Lignin
4、After deducting ADF from NDF, the remaining part is（ ）
A、Cellulose
B、Hemicellulose
C、Crude fiber
D、Lignin
5、The content of ( ) in plant seeds is lower than that in stems and leaves（ ）
A、Protein
B、Fat
C、Nitrogen-free extract
D、Crude fiber
6、The content of ( ) in animals greatly exceeds that in plants.
A、Calcium
B、Phosphorus
C、Potassium
D、Sodium
E、Chlorine
7、Primary moisture is also called（ ）
A、Free water
B、Bound water
C、Unbound water
D、irreducible water
E、Adsorbed water
8、（ ） can not be analyzed by proximate analysis methods.
A、Crude protein
B、Crude fiber
C、Amino acid
D、Calcium
E、Water
9、The main substance of ash in animals is（ ）
A、Potassium
B、Calcium
C、Phosphorus
D、Sodium
E、Sulfur
10、The feed proximate analysis method can measure the（ ）content in the feed.
A、Calcium
B、Phosphorus
C、Crude protein
D、Crude fat
E、Neutral detergent fiber
11、Water can be classified as a pure nutrient.
12、Nutrients can be simple chemical elements or complex compounds.
13、The remaining part of the feed after the free water is removed is called dry matter.
14、Animal diet is called feed.
15、The content of nitrogen-free extracts in the feed can be directly determined.
16、Animals and plants contain basically the same types of chemical elements, with carbon being the most common.
17、The water in the feed includes free water and bound water.
18、The average nitrogen content of crude protein in the feed sample was 16%.
19、Crude fiber is the main component of plant cell walls, including cellulose, hemicellulose, lignin and cutin.
20、Crude ash is mainly inorganic substances such as mineral oxides or salts, and sometimes contains a small amount of sediment.
Unit process
1、What are the similarities and differences in the composition of nutrients in animals and plants? （10 points）
2、Briefly describe the main basic functions of various nutrients in feed? （10 points）
Week 2 Metabolism & function of nutrients
Week 2 Metabolism & function of nutrients
1、Expressions of net energy for production（NEp）are not included（ ）
A、Weight gain
B、Hair production
C、Service
D、Breathing
2、Nitrogen-corrected metabolic energy（MEn）is often used in（ ）
A、Pig
B、Poultry
C、Ruminant
D、Aquatic animal
3、The gas in the digestive tract mainly comes from（ ）
A、Methane
B、Hydrogen
C、Carbon monoxide
D、Methane and hydrogen
4、When the body water decreases（ ）, there will be loss of appetite and weight loss.
A、1%-2%
B、8%
C、10%
D、20%
5、（ ）is characterized by water loss, while electrolyte loss is relatively small.
A、Hypertonic dehydration
B、Hypotonic dehydration
C、Isotonic dehydration
D、General dehydration
6、The first limiting amino acid of the swine corn-soybean meal diet is（ ）
A、Lys
B、Met
C、Thr
D、Trp
7、The amino acid that has a typical antagonistic relationship with Lys are（ ）
A、Arg
B、Met
C、Thr
D、Glu
8、Which of the following amino acids are not essential amino acids for pigs（ ）
A、Lys
B、Met
C、Gly
D、Thr
9、The short-term storage form of carbohydrates in the body is（ ）
A、Protein
B、Fat
C、Glycogen
D、Amino acid
10、（ ）is an important form of simple lipids.
A、Monoglyceride
B、Diglycerides
C、Triglycerides
D、Cholesterol
11、The only inorganic element that makes up thyroxine is（ ）
A、Chromium
B、Iodine
C、Arsenic
D、Vanadium
12、The main trace mineral elements that make up hemoglobin are（ ）
A、Iron
B、Copper
C、Zinc
D、Manganese
13、Which of the following vitamins is also called tocopherol（ ）
A、VA
B、VD
C、VE
D、VK
14、The following vitamins related to blood clotting are（ ）
A、VA
B、VK
C、VC
D、VE
15、Which of the following vitamins are part of coenzyme A and acyl carrier protein（ ）
A、Niacin
B、VB6
C、Pantothenic acid
D、VB12
16、Apparent metabolizable energy（AME）is the remaining energy after subtracting（ ）from the gross energy.
A、Fecal energy
B、Urine energy
C、Metabolizable fecal energy
D、Gas energy
E、Endogenous urine energy
17、The physiological functions of water include（ ）
A、Forms the body
B、As a solvent
C、Maintains osmotic pressure
D、Body temperature regulation
E、Lubrication
18、The ways animals lose water include（ ）
A、Excretion of feces
B、Perspiration
C、Respiration
D、Excretion through the product
E、Excretion of urine
19、Which of the following amino acids are branched chain amino acids?（ ）
A、Met
B、Leu
C、Ile
D、Thr
E、Val
20、Non-starch polysaccharides（NSP）are mainly composed of（ ）and so on.
A、Cellulose
B、Hemicellulose
C、Pectin
D、Resistant starch
E、Lignin
21、Feed processing methods that can improve the utilization of crude fiber include（ ）
A、Physical crushing
B、Granulation
C、Chemical processing
D、Boiling
E、Biological fermentation
22、Essential fatty acids usually include（ ）
A、Linoleic acid
B、Linolenic acid
C、Arachidonic acid
D、Oleic acid
E、Capric acid
23、The main iron storage organs are（ ）
A、Bone marrow
B、Liver
C、Pancreas
D、Spleen
E、Heart
24、Which of the following factors regulate calcium and phosphorus metabolism（ ）
A、Thyroxine
B、Calcitonin
C、Adrenaline
D、Active form of vitamin
E、Parathyroid hormone
25、The nutritional functions of VC mainly include（ ）
A、Participates in the synthesis of collagen protein
B、Promotes wound and ulcer healing
C、Reduces capillary permeability and fragile
D、Electron transfe
E、Antioxidant function
26、Feed energy mainly comes from carbohydrates, fat and protein.
27、Net energy（NE）is equal to digestive energy minus body heat gain.
28、The order of energy utilization efficiency is maintenance > milk production > growth, fattening > pregnancy and hair production.
29、Feed energy concentration plays an important role in determining animal feed intake.
30、Water is a more important nutrient than other nutrients.
31、Drinking water increased linearly with the increase in feed intake, and the frequency and amount of drinking water increased significantly during heat stress.
32、Lactation is also an important way for water to drain.
33、The water content of adult animals is higher than that of their young.
34、The average protein contains 6.25% nitrogen.
35、Glutamine（Gln）is an essential amino acid for growing pigs.
36、Cystine（Cys）supplementation has a saving effect on dietary methionine.
37、The tail products of protein metabolism of poultry are mainly excreted in the form of uric acid.
38、The final products of carbohydrate decomposition in animals are monosaccharides.
39、Lipids are insoluble in organic solvents such as ether, benzene, and chloroform.
40、Lipids are classified as saponified lipids and non-saponified lipids according to whether they can be saponified. Saponified lipids include simple lipids and complex lipids.
41、Lipids are solvents for water-soluble vitamins.
42、Lipids are the most abundant energy-containing nutrients, which are about 2.25 times the energy of protein and carbohydrates.
43、Selenium（Se）participates in the composition of glutathione reductase.
44、A quarter of total phosphorus in grains and by-products exists in the form of non-phytate phosphorus.
45、The nutritional function of cobalt is to synthesize VB12.
46、Vitamins are a type of organic matter.
47、Vitamins are not an integral part of body tissues, but can supply heat.
48、Vitamins A,D, E,and C are fat-soluble vitamins.
49、Coenzyme Q is a water-soluble vitamin.
50、The main function of VB7 is to act as a coenzyme in the carboxylation reaction, deamination reaction, purine and fatty acid synthesis.
Unit process
1、According to the nutritional effect of carbohydrates, discuss the consequences of insufficient or excessive carbohydrate supply in production? （10 points）
2、How to improve the nutritional value of feed protein? （10 points）
3、Explain why the calcium and phosphorus in the diet meet the needs of animals, and sometimes animals still have calcium and phosphorus deficiencies. （10 points）
4、Discuss what are the feed values of feed fats? （10 points）
5、Briefly describe the main biological functions of calcium and phosphorus？（10 points）
6、Briefly describe the nutritional and physiological functions of protein? （10 points）
7、Briefly describe the nutritional and physiological effects of water? （10 points）
8、What are the main functions of vitamin A? （10 points）
