ANSC 1001 - Final Exam solved 100%

ANSC 1001 - Final Exam solved 100% What is the most common breed of dairy cow in the US? Why? -Correct Answer-Holsteins, because they make a ton of milk, are very big, and have adapted to living in a barn much better than other breeds. Why would a farmer want to have other breeds of dairy cow to milk? -Correct Answer-Their milk has less protein and fat than other cow breeds. If someone was making cheese or ice cream, they might choose a colorful breed because the milk will be richer. Describe the life cycle of a dairy animal. -Correct Answer-- Weaned at 8wks - Heifers are bred at - 12-14 months old - Gestation for 9 months - First calving at 2 - years - Milking for 10 months - 2 month dry period - Calf again - milk for 10 months - 2 month dry period Explain why nutrient requirements vary in horses. -Correct Answer-nutrient requirements depend on physiological state, maintenance, pregnancy, lactation (mother prioritizes foal), growth (larger breeds = more food), and workload List what factors can influence feed consumption (in horses). -Correct Answer-palatability, dental care, processing, availability/time to eat, fatigue, illness, stress, and parasites. Explain at least two feeding tips (for horses). -Correct Answer-1) Feed them 3+ times a day or use a slow feeder so they aren't eating too much at once. 2) individual feeding is best if you have the time/labor available because you can better monitor each horse's eating habits Describe ways to manage horse manure. -Correct Answer-Use a dumpster or compost to manage manure, note changes in smell, color, consistency. Describe selective deworming and how it is used in horses. -Correct Answer-Fecal egg counting -less than 200=low shedder -200-500=med shedder -500 high shedder lowers cost, resistance, and better control of worms. Describe methods of biosecurity in horses. -Correct Answer-Keep stalls, aisles, etc. clean. Keep them updated with core vaccines: rabies, tetanus, West Nile virus, and eastern equine encephalomyelitis. Describe the unique characteristics of horses that contribute to their athletic ability. -Correct Answer-Obligate nose breathers (when their epiglottis is open it hits the top of their mouth blocking airflow) strict coupling of respiration and stride, spleen(stores RBCs and naturally "blood dope" when they are exercising), heat loss (lots of volume and low surface area, salty sweat to help them cool faster, have pro