Copy of Animal Nutrition SAQ's Q & A.docx

What are the two primary types of carbohydrates found in animal feeds? ANSWER: The two primary types are starch and fiber. Describe the structure of triglycerides. ANSWER: Triglycerides are composed of a glycerol backbone and three fatty acids. What are essential amino acids, and can you name tw...

What are the two primary types of carbohydrates found in animal feeds? ANSWER: The two primary types are starch and fiber. Describe the structure of triglycerides. ANSWER: Triglycerides are composed of a glycerol backbone and three fatty acids. What are essential amino acids, and can you name two? ANSWER: Essential amino acids are those that must be obtained from the diet; two examples are arginine and histidine. What is the primary function of lipase in fat digestion? ANSWER: Lipase breaks down fatty acids to facilitate their absorption. What happens to excess ammonia produced during protein metabolism? ANSWER: Excess ammonia is converted to urea and excreted in urine. What is the significance of whole grain cereals in animal feeds? ANSWER: Whole grain cereals contain substantial quantities of starch, mainly in the forms of amylose and amylopectin. What impact does lignin have on the digestibility of other dietary components? ANSWER: Lignin is completely indigestible and reduces the digestibility of other dietary components, particularly fiber and protein. How do simple and mixed triglycerides differ in composition? ANSWER: Simple triglycerides consist of three identical fatty acids, while mixed triglycerides contain different fatty acids. What is the consequence of excess ammonia produced from protein metabolism in animals? ANSWER: Excess ammonia is converted to urea and excreted in urine. Describe the role of bile in fat digestion. ANSWER: Bile activates pancreatic lipase and helps emulsify fats, reducing their size for easier digestion. What is the significance of the partitioning of feed energy in ruminants? ANSWER: The partitioning of feed energy allows for understanding how much energy is utilized versus what is lost, which is vital for optimizing diets. Explain the importance of starch found in whole grain cereals for animal diets. ANSWER: Starch in whole grain cereals provides a substantial energy source, primarily in the form of amylose and amylopectin. How are essential and non-essential amino acids differentiated in animal nutrition? ANSWER: Essential amino acids must be obtained through the diet, while non-essential amino acids can be synthesized by the animal\'s body. What is digestible energy (DE) and how is it relevant in animal feeding practices? ANSWER: Digestible energy (DE) is the proportion of feed energy that is absorbed and utilized, excluding energy lost in feces.