Exam_1_2007_KEY

Exam_1_2007_KEY - ANSC 324 Spring, 2007 EXAM 1 100 Points...

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ANSC 324 Spring, 2007 EXAM 1 100 Points NAME:________KEY_______________ Lab section:_______________________ Instructions: Make sure that you take time to carefully read each question, and then answer the question appropriately. Answers to essay questions do not necessarily have to be long, but answers need to be complete. Make sure that you pace yourself so that you are able to complete the exam. Don’t get stuck on any one question. If you don’t know the answer to a question, continue to the next question and come back to the one that you are uncertain about at the end. Please write legibly and show all of your work. Good Luck!!!
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1) Define the term “nutrient” (5 pts.): A nutrient is a chemical component of a feed ingredient that is required for normal body function. 2) What are the 6 nutrient classes (6 pts.)? Carbohydrates, lipids, minerals, vitamins, proteins, water 3) What is the difference between digestible and metabolizable energy (5 pts.)? Metabolizable energy is digestible energy minus the gross energy excreted in urine 4) Define an essential amino acid (5 pts.): An essential amino acid is one that is required by the animal and is either not produced by the animal or not produced by the animal in sufficient quantity to meet the requirement. Therefore, it must be supplied in the die 5) Individual nonessential amino acids are not required in the diet, but a certain quantity of nonessential amino acids are needed in the diet. Why (5 pts.)? Nonessential amino acids can be synthesized by the animal, but a certain quantity of nonessential amino acids must be provided in the diet to provide carbon skeletons and amino groups, which serve as the building block for amino acid synthesis 6) Define the “first limiting amino acid” (5 pts.): The first limiting amino acid is the amino acid that is in the diet at the lowest concentration relative to the animals’ requirement.
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7) You have just been hired as a nutritionist for a feed company that supplies feed to several wean to finish swine operations.
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Exam_1_2007_KEY - ANSC 324 Spring, 2007 EXAM 1 100 Points...

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