Revision Flashcards
You are asked to examine a cow with bilateral epistaxis. The farmer reports the cow has recently been coughing and when you auscultate the lungs the cranioventral lungfields sound generally (non-specifically) harsh. What is the most likely diagnosis for this animal?
- Von Willebrand’s disease
- Nasal trauma
- Mycoplasma wenyonii infection
- Caudal vena cava syndrome
Caudal vena cava syndrome
You visit a group of itchy sheep and on skin scrape diagnose Psoroptes ovis (sheep scab). Organophosphate dipping is not an option in this case, what treatment would you advise?
- Injectable macrocyclic lactone (group 3 wormer)
- Pour on synthetic pyrethroid
- Monepantel drench (group 4 wormer)
- Pour on insect growth regulator (IGR)
- Injectable macrocyclic lactone (group 3 wormer)
You are called out to see a goat with submandibular oedema and anaemia. The goat is in good condition, is not jaundiced and doesn’t have diarrhoea. What is your primary differential?
- Gastric ulcers
- Haemonchus contortus
- Liver fluke
- Johnes disease
Haemonchus contortus
You are called to a 200 breeding ewe lowland flock to examine a 5 year old ewe with a history of weight loss. Her teeth and diet appear to be OK, but she has increased respiratory rate and effort, a temperature of 39.5 and a BCS of 1 out of 5. The farmer reports that there is an increased prevalence of weight loss within the flock, particularly among the older sheep. You are concerned about OPA (ovine pulmonary adenocarcinoma). What diagnostics would you suggest to give you the best chance of determining the OPA status of this ewe?
- Euthanasia and post-mortem examination
- Take bloods for PCR
- Take bloods for serology
- Ultrasound thorax to assess lungs
- Euthanasia and post-mortem examination
You are presented with a recumbent beef suckler cow. The cow is 6 months calved. On examination the cow is in lateral recumbency and is making paddling movements with its limbs. What would be the best treatment option?
- Intravenous calcium borogluconate solution
- Sub cutaneous calcium borogluconate solution
- Intravenous magnesium sulphate solution
- Subcutaneous magnesium sulphate solution
Subcutaneous magnesium sulphate solution
You examine a beef suckler cow presenting as off colour. On a blood sample beta-hydroxy butyrate is 3.6mmol/L (normal range <1.0mmol/L), you make a diagnosis of ketosis. Which stage of production is the cow most likely to be at?
- Late pregnancy
- Early lactation
- Peak lactation
- Weaning
- Late pregnancy
You are asked to dehorn an adult cow, which of the following combinations of medicines would be most appropriate?
- Amoxicillin and procaine
- Procaine and meloxicam
- Procaine and xylazine
- Xylazine and meloxicam
- Procaine and meloxicam
A dairy farm reports a lot of cows developing LDAs in early lactation. You carry out metabolic profiling of a sample of cows. There is a high prevalence of elevated NEFA in the transition cows, and a high prevalence of elevated BHB in the fresh calves cows. What is your diagnosis?
- Subacute ruminal acidosis
- Subclinical hypocalcaemia
- Type 1 ketosis
- Type 2 ketosis
- Type 2 ketosis
Ewes are the main source of Nematodirus infection for young lambs in the spring.
* True
* False
False
Sheep generate a strong protective immunity to Haemonchus contortus after infection. True or false?
* True
* False
False
Taking regular faecal egg counts is a good way to monitor and prevent production losses in lambs due to Nematodirus infection. True or false?
* True
* False
False
You are called out to a farm which has a problem with dry period origin environmental clinical mastitis problem. The milking herd is housed in sand cubicles all year round and the dry cows are split into two groups, both housed in straw yards. What is the most appropriate recommendation for this farm?
- Ensure that close up dry cow yard is bedded up daily and mucked out at least every 4 weeks
- Ensure that the milking herd is stocked at 95% in the cubicle shed.
- Ensure the post milking teat disinfection is used on all cows
- Ensure that the high somatic cell count cows are milked last
Ensure that close up dry cow yard is bedded up daily and mucked out at least every 4 weeks
You are called out to a suspect traumatic reticuloperitonitis case. What is the most appropriate clinical examination test to aid confirming this diagnosis?
- Blood BHB levels
- Withers pinch
- Percussion and succussion of the abdomen
- Rectal examination
Withers pinch
You are called out to an outbreak of calf scour diarrhoea. The farm has been having issues with colostral antibody transfer. You have performed some colostrum testing and found the below data.
(Targets: Quality >=22% Brix, Total bacterial count <100,000 cfu/ml, Coliform count <10,000 cfu/ml).
What is the most appropriate area to investigate on this farm?
- Speed of colostrum delivery
- Transition cow diet and timing colostrum harvesting
- Cleanliness of the feeding equipment
- Colostrum storage method
Transition cow diet and timing colostrum harvesting
A farmer calves all of his cows in one calving yard on dairy farm. He collects the colostrum from the individual dam, tests it for quality and discards it if it is from a Johne’s positive or inconclusive cow. The calves are subsequently fed on commercial milk replacer. The calves are paired housed in hutches, before moving into group pens at 4 weeks of age. The housing is at the top of the farm, with the adult cows housed at the other end of the farm. The farm spreads slurry in January on the farm, with the adult cows grazing from March to October. Any Johnes positive or inconclusive cows (red or amber) are bred to beef and the calves are not kept as replacements.
What is the main risk factor for Johne’s transmission on the farm?
- Transmission via colostrum
- Faeco-oral transmission during the grazing season
- Calving yard management through faeco-oral transmission
- Breeding policy through in utero transmission
- Calving yard management through faeco-oral transmission
