36653135
| Questão | Responda |
| A week old calf presents with watery diarrhoea, which is thin, and yellow. What are the top 3 ddx? | Rotavirus, coronavirus, cryptospordia |
| At what age do calves usually get E.coli infection causing disease (d+, dehydration, collapse) | 0-6do |
| What causes nutritional d+ in calves? | Poor clotting of casein causing poor digestion and d+ |
| What causes calf diphtheria? | Fusobacterium necrophorum |
| Which is the most used LDA open surgery technique? | right paralumbar laparatomy + pexy |
| A handful of cows have presented with ocular-nasal discharge, corneal opacity, and mouth ulceration. They graze on the same pasture as a flock of sheep. What is the likely dx? | Malignant catarrhal fever |
| A small group of heifers have presented with profuse dark d+, lethargy, and inappetence. They were housed last week. What infection is likey? | Winter dysentry caused by coronavirus |
| A cow presents with a painful, swollen tongue, and excess salivation. How would you tx? | Streptomycin for 5-7d |
| A cow presents with a hard and swollen jaw causing dysphagia, how do you tx? | Tetracycline |
| How would you monitor for BVD v test an individual? | Bulk milk PCR v lab test Ag using blood or milk |
| What PM changes do you see with johnes disease? | Corrugated, thickened, oedematous gut |
| A lamb born last night presents as dull, weak, drooling, and distended abdomen. What is the likely cause? | Watery mouth do to inadequate colostrum |
| What disease causes haemorrhagic enteritis, abdominal pain, and sudden death in 1-3do lambs? | Lamb dysentry |
| In spring, a 2 month old lamb presents with watery d+, faecal staining, and dehydrated. It was recently turned out onto pasture after a warm spell. What is the likely dx? | Nematodirus battus |
| In summer a group of heifers present with submandibular oedema, weight loss, and lethargy. On exam they have pale membranes. What is the likely dx? | Haemonchus contortus |
| A group of month old calves present with mucusy d+, straining, and weight loss. What is the likely dx? | Coccidia |
| A group of cows on pasture present with submandibular oedema, poor fleece quality and poor condition. What is the likely dx? | Liver fluke |
| What is the risk of dogs defecating on sheep grazing? | Echinococcus granulosus (hydatid disease) |
| An adult cow that is due to calve soon presents with dullness, anorexia, abducted elbows and cranial abdominal pain. What is the likely dx? | Traumatic reticulitis |
| A cow who calved 2 weeks ago presents with reduced milk yield and reduced appetite. On exam she has a ping on the left over ribs 9-13. Dx? | LDA |
| A cow who calved 3 weeks ago presents with reduced milk yield. On exam she has a positive ping on the right over ribs 9-13. Dx? | RDA |
| A cow who calved 3 weeks ago presents with a history of decreased milk yield, but is now dehydrated, dull, and a HR of 100. On exam there is a positive ping on the right between ribs 9-13. Likely dx? | Abomasal volvulus |
| A cow who calved 3 weeks ago presents with a history of decreased milk yield, but is now dehydrated, dull, and a HR of 100. On exam there is a positive ping on the right abdomen, high up. Likely dx? | Caecal torsion |
| What happens when a naive cow is infected with BVD between 0-30d of pregnancy? | Early embryonic death |
| What happens when a naive cow is infected with BVD between 30-120d of pregnancy? | Persistently infected calf |
| What happens when a naive cow is infected with BVD after 120d of pregnancy? | Foetal malformations |
| What Ag/Ab test result would you expect from a PI BVD calf? | Ag +ve, Ab -ve |
| What Ag/Ab test result would you expect from a transiently infected BVD calf? | Ag +ve, Ab -ve --> Ab+ve, Ag -ve after 3 weeks (seroconversion) |
| What signs doe PI BVD calves show? | Poor growth rates, mucosal disease |
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