AVS 437 Exam 4 with100% correct answers 2024.

A calf has just died from what you think may be White Muscle Disease. What samples would you take to confirm this diagnosis? Select ALL correct answers - there are more than one. - correct answer D - A chunk of heart tissue C - A piece of a lower leg muscle A dairy cow has been lying down for three days and you can only get her to stand using a hoist and sling. You can't elicit a pain response from any of her limbs. When she stands (with support), she seems to be unable to control the legs that she had most recently been lying on top of. She also seems generally weak and a bit uncoordinated. - correct answer A combination of neurological and M/S? A dog has hair loss that appears to be in a symmetrical pattern, but there is no sign of skin inflammation. The dog's skin disease is probably due to: - correct answer B - A hormonal imbalance A dog has patches of persistently inflamed skin that contains lots of bacteria, all of which are normal skin flora. The dog's skin initially responds to antibiotic treatment, but the dog becomes re-infected after a few weeks and needs to be treated again. We know that the bacteria in this dog's skin are susceptible to the antibiotics being used. Which of the following is the PRIMARY cause of this skin condition? - correct answer Atopic dermatitis caused by a food allergy A horse has a pronounced limp that you isolate to its left hind limb. You notice that the large muscles of its left and right rump differ in size, with the left rump muscles seeming to be much smaller than the right. The horse is suffering from; - correct answer D - A neurological injury that occurred months ago A mare is three-legged lame (won't put weight on her left hindlimb). This leg seems painful when you try to flex her lower joints, and the soft tissues are warm and seem swollen. Is the problem; - correct answer B - Musculoskeletal in origin? An Endemic disease would be something that was recently introduced to a population of animals, and that is just starting to infect large portions of the population for the first time. - correct answer B - False Any animal with blisters around its mouth, or on other mucous membrane surfaces, should be reported to State authorities as a potential non-native "disease of concern".. - correct answer A - True Atopic dermatitis is a hypersensitivity reaction caused by allergens that enter the body through either the digestive tract of the lungs. - correct answer A - True f you looked under a microscope at the growth plate of a Great Dane puppy with epiphysitis, you would find that it had a wider than normal thickness of cartilage that was poorly vascularized. The growth plate would also probably contain numerous micro-fractures. - correct answer A - True For successful wound healing to happen, what is the order of events that needs to occur? - correct answer Swelling and increased blood flow to area Initial mitosis of fibroblast cells at the wound edges Immune system responses that render the deeper skin layers free from dead cells and bacteria reestablishment of the skin barrier with a complete layer of fibroblasts over the wound Differentiation and re-layering of the healed skin Renal disease can cause hypocalcemia in the bloodstream because; - correct answer Too much calcium is lost to the urine because it can't be actively reabsorbed from the renal tubules reabsorbed Excess phosphorus builds up in the blood because the kidneys can't get rid of it fast enough, and this phosphorus starts to combine with calcium to form an insoluble precipitate in the bloodstream The oxidative damage from White Muscle Disease can be prevented by _, which inactivates oxygen free radicals before they can damage the lipid bilayer membranes of muscle cells - correct answer C - Vitamin E Which one of the following would NOT increase the risk of skin / hair disease due to copper deficiency in a cow's diet? (note that this question has no correct answer, as pointed out by an attentive student. Hence, I marked all of the answers correct!). Just pick one, but understand why these are all conditions that could cause copper deficiency. All of these conditions / treatments would reduce copper availability to the animal consuming the forages. - correct answer C - Hay grown on soil that is naturally high in molybdenum Your rich uncle just got hit by a bus and left you a pile of money in his will. Since you just completed the Animal Diseases course, you decide that this would be a great time to make investments at the Witter Center that improve the biosecurity of the farm. List the THREE most important changes that you would implement at the Witter Dairy, tell me why they are needed, and how they would help. Note that you will only receive credit if you provide three potential biosecurity problems and three logical arguments for why your approach would be a good solution. - correct answer 1. No dogs Dogs can carry a lot of diseases and have been known to carry diseases from farm to farm. A lot of people that go to witter farm also work on more than one farm and have been known to bring there dog to the other farms also. So if no dogs were allowed then we would have less chance for diseases to be spread from other farms or just from other animals the dogs could have came in contact with. 2. Limit vehicles by making sure they are parked farther from the farm where there is no chance for contact to animals. Vehicles have been know to also be able to carry disease from their tires. Again this comes back to that a lot of people that work at the witter center also work at other farms or people go visit other farms and they can pick up diseases by say running over manure. So to limit the possible exposure we should park vehicles farther away where the animals won't come in contact with the vehicles have been parked. This will also cut down on diseases that are possible transferred from other farms or other outside sources. 3. Put in a system to try to keep birds away since there's a lot of them. Birds are a huge problem at Witter and birds carry a lot of diseases and some of which can be very harmful especially to cattle. So some system should be implemented let it be a way to trap them, spike strips on the rafters and roof, or some sort of way to keep them out of the barn better like netting. This will allow the cows to not be susceptible to any diseases possibly transmitted through the feces or from the feathers.