LSU ANSC 1011 Exam 1

T/F: In a modern society, people depend upon agriculture, the combination of science and art used to cultivate and grow crops and livestock for their existence. - Correct Ans True T/F:The field of scientific study of domesticated animals is called animal science. - Correct Ans-True T/F:Consumers in the United States have eaten beef from genetically modified or transgenic cattle (GMO's) - Correct Ans-False T/F:Castration is the common fate of most livestock males unless they are being considered for market/food animals. - Correct Ans-False T/F:Nutrients provided by meat, milk and eggs are not important for human survival. - Correct Ans-False T/F:For a young animal to have a positive growth rate, its diet must provide nutrients higher than (above) the maintenance requirement. - Correct Ans-True T/F:Humans have a delay in the too-full feeling while eating so we can consume more food. - Correct Ans-True T/F:Poultry has the slowest rate of passage of feed through the GI tract compared to any of the other farm animals. - Correct Ans-False T/F:The hormones of FSH and LH are produced by both female and male mammals - Correct Ans-True T/F:As compared to ruminant animals, the horse is considered ass-backwards in regard to cellulose digestion. - Correct Ans-True T/F:For most mammalian males, one of the purposes of the scrotum is to keep the testicles above the core body temperature. - Correct Ans-False T/F:Historical records indicate that the first wild animal to be domesticated was the sheep. - Correct Ans-False T/F:For each ejaculate, the semen production of most ruminant males has a very low volume of semen but a very high concentration of sperm compared to other males especially boars or ASNC ANSC stallions. - Correct Ans-True T/F:Progesterone is the primary hormone during pregnancy for most mammalian females. - Correct Ans-True T/F:Villi and microvilli of the small intestines are of minor importance in the total surface area of the small intestines. - Correct Ans-False T/F:On average, carbohydrates have 2.25 times more energy than lipids on an equal weight basis. - Correct Ans-False T/F:The three primary VFA's produced by ruminant bacteria are acetic, propionic and lactic acids. - Correct Ans-False T/F:The cow has a gestation length of 114 days or 3 months, 3 weeks and 3 days. - Correct Ans-False T/F:Nutrient requirements of an animal depend upon specie, age, and productive function. - Correct Ans-True Rumen pH is influenced by how many times per day the cow chews her cud, so as chews per day increase, the rumen pH A. decreases or B. increases. - Correct Ans Increases After 40 generations of selection for non-aggressive behavior, the silver foxes acted more like A. dogs or B. foxes. - Correct Ans-Dogs A consumer purchases a bag of commercial fertilizer with a formula of 10-15-10, the 15 stands for the percentage of A. nitrogen or B. phosphorus . - Correct Ans-Phosphorus Vitamins are considered to be A. inorganic or B. organic compounds. - Correct Ans Organic As societies advance and their population has more disposable income, the demand for animal products, A. decreases or B. increases. - Correct Ans-Increases Which type nutrient must be provided in the diet, A. essential or B. non-essential ? - Correct Ans-Essential Which meat has the highest world-wide consumption, A. poultry or B. pork ? - Correct Ans-Pork Which animal species has the largest population in the world? A. cattle or B. poultry - Correct Ans-Poultry ASNC ANSC Consuming meat in the diet, also has a meat factor for absorption of which mineral, A. calcium or B. iron ? - Correct Ans-Iron In the third world countries, the A. goat or B. steer is considered a poor man's refrigerator. - Correct Ans-Goat As you travel West from Louisiana to California by automobile, the climate becomes A. wetter or B. dryer. - Correct Ans-Dryer For an adult human, which of the following nutrients can be safely removed from the diet for an extended period of time, A. amino acids or B. carbohydrates? - Correct Ans Carbohydrates The amount of feed that is fed to an animal on a daily basis is referred to as A. diet or B. ration. - Correct Ans-Ration Ruminant animals have A. a dental pad or B. upper incisors in the top front of their mouth. - Correct Ans-Dental Pad The small intestines is the site of nutrient digestion and absorption, with the majority of the absorption occurring in the A. duodenum or B. jejunum. - Correct Ans-Jejunum Excess nitrogen in the bird is excreted as uric acid since this process requires A. less or B. more water as compared to urea. - Correct Ans-Less Grass or hay that a ruminant animal has very recently consumed is part of the grass mat that is located in the A. bottom or B. middle portion of the rumen. - Correct Ans Middle Estradiol from the A. uterus or the B. dominant follicle sends a signal to the brain to release the hormone responsible for ovulation. - Correct Ans-Dominant Follicle Mature male, bilateral cryptorchid horses have the temperament of A. geldings or B. stallions. - Correct Ans-Stallions Hydrochloric acid in the stomach is an example of a/an A. chemical or B. enzymatic breakdown of feedstuffs. - Correct Ans-Chemical Which of the following essential amino acids (for most non-ruminants) is not considered an essential amino acid for humans? A. arginine or B. lysine - Correct Ans-Arginine Which animal has a very long tongue that aids in bringing food into their mouth? A. cow or B. horse - Correct Ans-Cow Excess nitrogen not needed for protein synthesis is excreted as A. urea or B. uric acid