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pg. 1 professoraxe
ANSC 1011 Exam 1 Questions and
Answers 100% Verified | Latest update
True or false? The field of science that includes the study of all aspects of domesticated animals is called animal science. - Correct Answer-true True or false? The volatile fatty acids produced in the rumen in ruminants and in the large intestine of the horse are acetic, lactic, and propionic acids. - Correct Answer-false True or false? The diet composition for a growing pig and a lactating dairy cow are very similar. - Correct Answer-false True or false? On average, fats have 3.25 times more energy than carbohydrates do. - Correct Answer-false True or false? By definition, a first rate limiting amino acid will be an essential amino acid such as lysine or methionine. - Correct Answer-true
pg. 2 professoraxe True or false? PVT TOM HALL is a mnemonic device used to remember the essential amino acids. - Correct Answer-false True or false? For a young animal to have a positive growth rate, its diet must provide nutrients higher than the maintenance requirement. - Correct Answer-true True or false? As compared to ruminant animals, the horse is considered equal in regard to utilization of microbial protein. - Correct Answer-false True or false? World-wide, consumers get the majority of their protein from animal sources. - Correct Answer-false True or false? In most of the world, the most abundant and cheapest nutrient is carbohydrate. - Correct Answer-false The study of animal behavior is called ______ - Correct Answer-ethology Cattle, pigs, and sheep have a visual field of approximately _____ degrees - Correct Answer- 300
pg. 4 professoraxe Poultry's GI tract is arranged in the following order, the crop is first, and then the second organ is the ______ - Correct Answer-proventriculus If one of the main ingredients of a ration is corn silage, the ration is formulated for ______ - Correct Answer-cattle Vitamins are considered to be _____ - Correct Answer-organic compounds Grass or hay that a ruminant animal consumed yesterday is part of the grass mat that is located in the ______ portion of the rumen - Correct Answer-bottom What accounts for over 50% of production costs for most livestock operations in today's market? - Correct Answer-feed Which proximate analysis procedure is used to determine the total mineral content of a feed sample? - Correct Answer-ash The most important contribution of agricultural animals to humans in modern times is that of: - Correct Answer-food
pg. 5 professoraxe In terms of livestock numbers, which species has the largest number of animals worldwide? - Correct Answer-chickens Which animal provides the largest source of meat worldwide?
- Correct Answer-pigs Meat and dairy products are important food sources because they: - Correct Answer-are nutrient dense Which of the following is NOT considered a "variety meat"? - Correct Answer-ribeye steak Any chemical substance in the diet that supports or maintains life processes is referred to as a: - Correct Answer-nutrient Nutrients provided by feeds serve many purposes in the animal. Which of the following is the first trait affected by inadequate nutrition? - Correct Answer-reproduction Sources of protein supplements for non-ruminants include all of the following except: - Correct Answer-non-protein nitrogen sources (NPN)
pg. 7 professoraxe The Kjeldahl procedure measures nitrogen content in feeds to estimate: - Correct Answer-crude protein Characteristics of a good-quality hay include: - Correct Answer-being relatively immature when harvested, being free from mold, mustiness, and foreign material, and being green, leafy, and palatable Which volatile fatty acid is a precursor for milk fat and is produced when high forage diets are consumed? - Correct Answer-acetic acid An animal that eats a diet of plant-based feeds is referred to as a/an: - Correct Answer-herbivore The major carbohydrate found in forages such as fresh pastures, silage, and hays and is an important energy source for herbivores such as cattle, sheep, llamas, and horses is: - Correct Answer-cellulose The esophageal groove in young ruminants diverts milk from the esophagus to the: - Correct Answer-abomasum
pg. 8 professoraxe An important reason to include lipids in animal diets is that they are: - Correct Answer-used as a source of energy, necessary for the absorption of vitamins A, D, E, and K, and used an a source of essential fatty acids Which of the following statements are true for essential amino acids? - Correct Answer-animals can't make them from adequate substrates, they must be included in the diet, and they are needed for proper growth When ruminant animals chew their cud the results are: - Correct Answer-particle size of the forages previously consumed is reduced, rumen fluid is thoroughly mixed with the forage, and saliva aids in passage of the bolus and increases rumen pH Which of the following is not one of the eight categories of feeds? - Correct Answer-lignin-derived by-products A major source of starch in livestock feeds is: - Correct Answer-corn The fat-soluble vitamins are: - Correct Answer-ADEK
