Farm animal deficiencies and poisoning

In summer a 5mo calf out at pasture presents with poor coat condition (particularly around the eyes) and poor growth rate. Likely dx?

After turn-out onto pasture a 3mo beef calf presents as stiff and in respiratory distress. What is the next best diagnostic step?

A 1mo calf is presenting with inability to stand, a stiff gait, and respiratory distress. What dx is likely?

A dam has given birth to a stillborn calf who has alopecia and subcutaneous oedema. She is suffering from RFM. What is the likely dx?

What deficiency does brassica ingestion cause?

An older cow having gave birth 12 hours ago is now presenting with tremors, stiff gait, straight-hocked, and teeth grinding. What is the likely diagnosis?

A cow that previously calved 20 hours ago and presented with uterine prolapse is now presenting with weakness and holding her head against her chest. What is the likely dx?

A summer calving dairy cow was turned out onto lush pasture, is now presenting with twitching, teeth grinding, and incoordination. What is the top dx?

A lactating dairy cow was turned out 2 months ago (spring) and is now seizuring and frothing from the mouth. She was previously startled, and had a pronounced blink. Top dx?

A heifer at pasture presents as depressed, over-reactive, and head pressing. No other cows are affected. What is the likely dx?

A dairy cow out on pasture is presenting as staggered gait, bellowing, and crashing around, seemingly blind. What is the likely dx?

A heifer presents as colicing, dehydrated, and depressed. She is now recumbent. Likely dx?

A cow presents as weak, dull, and not eating. She is jaundiced and recumbent. What is likely dx?

A 3w old lamb presents with hindlimb weakness, ataxia, and an open and brittle fleece. What dx is likely?

A young lamb presents with poor fleece quality, weight loss, and scabby ears and eyes. What is the likely dx?

On PM a young lamb was found with pale muscles, calcification and subcapsular liver rupture. What is the likely dx?

A young lamb presents with a stiff and hunched gait, what is the likely dx?

A farmer is worried about his flock's low birth rates, non-viable lambs, and still births. What trace element do you test for?