ANSC 221 EXAM 1 Flashcards
What was the historical importance of Dr. Stephan Babcock’s experiment
- First semi purified diet used with farm animals of economic importance, so people took notes, and this became a very important tool in nutrition
- it led to a research opening in the Golden Age of Nutrition with the discovery of the vitamins and minerals
What did Dr. Forsyth say to know about feed additives
Feed additives are regulated and it is important to stay up to date and follow those regulations
Why feed low calcium to prevent milk fever
The parathyroid gland secretes slow-acting hormone called parathyroid hormone (PTH) in response to the low calcium level that is detected in the blood. Feed low Ca ahead of time can activate the PTH that will increase Ca absorption and release Ca from bone
If fed high Ca ahead of time it send the wrong signal that more Ca is not needed
Why isn’t it effective to feed BST to improve milk production
BST is a protein and if eaten it would be digested into amino acids. It must be injected in order to work
What are the main concerns when feeding antibiotics
Antibiotic residues remaining in animal tissues, and microbial resistance to antibiotic
Form of starch in plants with a branched chain structure
Amylopectin
Straight chain structure
Amylose
Milk Sugar
Lactose
Monosaccharides that starch is composed of
glucose
Monosaccharides that cellulose is composed of
glucose
What substance in protein used to distinguish protein from starch and cellulose
Nitrogen
What vitamins prevents rickets
Vitamin D
What vitamins with forms are pyridoxine, pyridoxalm and pyridoxamine
B6
Which vitamin is destroyed by thiaminase
Thiamin
What vitamin helps protect membranes and prevents exudative diathesis, encephalomalacia and torah disorders
Vitamin E
Cation we get from salt
Sodium
What mineral prevents grass tetany
Magnesium
What minerals prevent parakeratosis
Zinc
What mineral is part of the hormone thyroxine, which controls basal metabolic rate
Iodine
Which mineral deficiency causes goiter
Iodine
List nutrition deficiencies that results in anemia as major symptom in farm animals
Iron, Copper, Cobalt, B12, Folic Acid, B6, Vitamin K
Which essential amino acid contains sulfur
Methionine
What are the first two limiting amino acids in corn for pigs,
Tryptophan and Lysine
List the VFA
Propionic, Butyric, Acetic Acid
List the Essential Fatty Acid
Linoleic, Linolenic, Arachidonic
List two predominant long chain fatty acids in beef fat
Steric and Palmitic
Which mineral would be tied up by oxalic acid causing blood to not clot
Calcium
Which mineral is found in vitamin b12
Cobalt
What vitamin is part of acetyl CoA and has a deficiency symptom that is goose stepping in pigs
Pantothenic Acid
Which vitamin corresponds with L-Ascorbic Acid
Vitamin C
Which mineral prevents nutritional muscular dystrophy such as stiff lamb disease, white muscle disease, and liver degeneration causing sudden death in pig
Selenium
Which mineral is toxic in raw rock phosphate
Flourine
Which of the following is a toxic material not presently known as essential
Mercury
Which vitamin is the main biological antioxidant and prevents stiff lamb disease, white muscle disease and nutritional encephalomalacia
Vitamin E
Which vitamin is made in metabolism by farm animals but not by humans
Vitamin C
Which vitamin has activity from menadione, phylloquinone, and menaquinone
Vitamin K
Which vitamin is necessary for the blood to clot
Vitamin K
what makes up a triglycerides
1 glycerol and 3 fatty acids
Which amino acid contain imidazole group
Histidine
Which is a vitamin that is a part of NAD and NADP
Niacin
Which is a vitamin that a deficiency can result in pellagra in humans, and black tongue in Dogs
Niacin
Which amino acid is very sweet, when connected to aspartic acid, and needs to be checked that it is being metabolized correctly in babies
Phenylalanine
What was Babcock’s experiment
Babcock’s experiment tested whether cows could survive only on one type of grain Two groups of cow both fed different diets. One group was only fed a corn diet while the other group only fed a wheat diet. the corn diet cow were more healthier and able to reproduce healthy calves while the wheat diet cow were least healthier and reproduces calves that died at a early age
What are the functions of fat in the diet
Energy, Supply esssential fatty acids, etc.
