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202 Cards in this Set

  • Front
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What is the average % body fat of a 5/9 BCS cat or dog?

20% (15-25)

Which has the greater BMR: an 25 lb dog with 19% body fat, or a 25 lb dog with 43% body fat?


Why?

The animal with lower body fat %


Adipose tissue will use much less energy compared to muscle mass or organ systems

What is the rule of thumb coefficient for average maintenance energy calculation?

1.5 to 2

What are some potential reasons to feed more nutrients to a sick animal?

-Increased nutrient loss (diarrhea, renal disease, etc)


-Increased nutrient requirements (fever, tissue repair, etc)

What are some potential reasons to feed less nutrients to a sick animal?

-Reduced activity, work, and growth


-Lack of intake


-Inability to absorb and metabolize nutrients

What two amino acids are uniquely required in the diet of cats?

Taurine and arginine

What is the first limiting amino acid in the diet of horses and hogs? What diet does this usually occur in?

Lysine


Corn and Soybean diets

What type of taste are dogs insensitive to?

salty (exp compared to humans)

What type of taste are cats insensitive to?

sweet

Between horses and cows, which animal tends to spend more time eating?

Horses

What is the limit (in body weight %) of grain that can be fed in a single meal?

0.5%

How do energy requirements of females in their first and second trimester of pregnancy compare to maintenance energy requirements?

Generally similar, not significantly different

How do energy requirements of females in their third trimester of pregnancy compare to maintenance energy requirements?

above maintenance due to exponential growth of fetus and preparation of mammary glands

How can cycling of a female be ceased?

Sever nutrient restriction (25% of body weight)

Describe flushing

By increasing energy prior to breeding, results in more ovulation and increases possibility of twins or triplets

At which point is a dam committed to a parasitic fetus, even at the loss of its own nutrient health?

From Trimester 2 onwards

Of glucose, amino acids, and fat, which will generally go to the mother over the fetus?

Fat as the fetus can't use it well

At which point will decreases in nutrient requirements result in fetal loss?

Trimester 1

What nutrient deficiency leads to neural tube defects in offspring?

Folate

What nutrient deficiency leads to cretinism in offspring?

Iodine

What nutrient deficiency leads to impaired immune function in offspring

Cu and Se

Name 3 late-gestation malnutritions

1) Pregnancy toxemia (ewes and does)


2) Protein-energy malnutrition in cows


3) Hypocalcemia in dairy cows

Name 3 common inappropriate feeding programs in gestation

Fescue diets (mares)


Lack of Colostrum


Excess/inadequate protein/energy diets

How does breeding affect appetite for males and females?

Generally increases appetite; decreases for 3-4 days during estrus

How is a cats appetite affected during gestation?

decreases during weeks 1 to 3

How does late gestation affect all animals appetites?

Intake will decrease due to lack of space in abdomen (even though requirements are increased)

If an animal goes off feed during gestation, what might this be a sign of?

impending partrition

Post partum, how is appetite affected?

increased until peak lactation

What is transition/lead feeding in mares and cows?

add grain to late gestation diet to prepare for a high grain diet post calving/foaling

Name the main differences between colostrum and normal milk:

Nutrient density (increased protein, fat, vitamins, minerals, less water)


Ig's (IgG, IgA, IgM) (puppies and kittens get some transplacentally)


Lactoferrin and Lymphocytes (?)

In body weight %, how much colostrum does a neonate need in the first 24 hours?

10% BW

What are some methods of testing quality of colostrum?

Colostrometer


Testing babies IgG levels in serum or plasma (example SNAP test)

What nutrients can cause decreased colostrum quality in mares?

endophyte and fescue

What is the preferred assisted feeding method of colostrum in calves?

Esophageal tube feeding (caution of aspiration into lungs)

What is the preferred assisted feeding method of colostrum in puppies and kittens?

Eye dropper

What are the positives and negatives of colostrum storage?

Positive: can be stored frozen for months-years


Negative: risk of protein damage with excessive heat when thawing: using easily thawed containers such as flat plastic bags

What are some of the goals of feeding between day 1 and day 7 of a neonate?

Acquire food frequently


Rest


Develop a functional GI system (enzymes and supporting metabolism)


Avoid neonate pathogens

What are some of the goals of feeding between day 7 and beyond of a neonate?

increased milk consumption


explore new feeds


mimic mother


+growth, +activity

How many times should a PUPPY suckle per day?


When can solid food be introduced into the diet?


When should they be weaned?

4-6 x per day


3-4 weeks


8-10 weeks

How many times should a FOAL suckle per day?When can they start exploring the mares diet?


When should they be weaned?

3-7 times / HOUR! (1-2 min at a time)


explores mare diet at several days of age


4-7 months of age

What type of diet will enhance rumen development most in calves and kids?

Grain diet (counter intuitive)

When should dairy calves and kids be weaned off whole milk/milk supplements?


When should beef calves and lambs be weaned off mothers milk?

Dairy calves and kids : 6-12 weeks


Lambs: 2-4 months


Beef calves: 6-8 months

Which species has milk that is highest in total solids? Lowest in total solids?


Which species has greatest fat/protein % dry matter? Lowest?


Which species has greatest lactose/sugar % dry matter? Lowest

Highest total solids= Queen


Lowest = Mare


Highest fat/protein % dry matter = queen


Lowest = Mare


Highest Sugar/lactose % dry matter = Mare


Lowest = queen

For sick neonates, what is the minimum amount of milk/milk replacer (in body weight %) needed to keep them alive?

10%

What are the suspected symptoms of a lactose intolerant neonate?

enhanced diarrhea

How might milk glycans help in neonate health?

enhance gut microbe health


competes with pathogens for binding sites

What are the consequences of caloric restriction in growing animals?

Extending lifespan through highly conserved stress response (our bodies are not adapted for an overabundance of food)

What is the common themes of DOD? What species are most often affected?

Abnormal endochondral ossification (Physitis, Osteochondrosis, Osteochondritis dissecans (OCD), Hip dysplasia)


Dogs and Horses

What diet type is often associated with DOD formation? What stage of life must the animal be in?


What other factors are associated with DOD?

High energy (not high protein) in a rapidly growing animal; Excess Ca and Vitamin D in great danes; Cu and Zn deficiencies in foals/gestating dams


Insulin resistance (excess insulin), and IGF-1; Genetics

What is the minimum amount of water needed to support life (in body weight % and mL/kg)

5%, 50 ml/kg

How would you describe an adequate large breed puppy diet compared to that of a small breed?

Usually a specialty diet: less energy and Ca

What is the risk of acidic diets in growing baby kittens?


What is the risk of chronically over acidic diets in adult cats?

Risk of demineralizing bone! (dont feed a UTD diet to kittens!)


Hypokalemia: ventroflexion of the neck, stiff gait, exercise reluctance; also caused by anorexia, diuresis, diabetes, insulin therapy, vomiting, diarrhea

What are basic guidelines for forage and concentrates of foals?

Forage: between 1 and 2% body weight --> 1-1.5% at long yearling


Concentrate: between 1-2% body weight --> 0.5-1% at long yearling

What is "stockering" of feedlot animals?

Feeding moderate growth (wheat) after weaning (instead of high growth concentrate diet), then finish on high grain diet to gradually increase weight gain of feedlot animal

What is the approximate % of mature wt that cattle should be at time of breeding?

50-55% (67%?)


Should reach puberty 1-2 cycles prior to breeding date


Complication: dystocia

Of growing large breed dogs, kittens, replacement heifers, race horses, and feedlot steers, which have the lowest dietary energy to BW ratio? Highest? in the middle?

Lowest: large breed dogs, kittens


Middle: race horses, replacement heifers


Highest: feedlot steers

What type of muscle fiber is best for sprinters? for endurance?


Which relies most on glycogenolysis?

Type 2; type 1


Type 2

Which nutrient energy source is best for endurance?


for sprinting?


Where is the exception?

Fat for endurance


CHO for sprinting


Exception: Sprint horses can't be fed excess grains due to GI upset

How long does it take to train muscle for a specific use (sprint vs endurance)?

6 weeks

What is the relevance between protein and activity level?

Any increased need for protein is easily compensated by increased intake (dont supplement)

What vitamins are of importance for athlete/production animals

Horses; A, E, Thiamine, Folacin


Dogs:E, C


General: Bs for energy metabolism; A, E, C for antioxidants

How does the DER of a racing grey hound compare to a maintenance animal? How about a sled dog?

DER of grey hound and maintenance animal are comparible


DER of sled dog is 5-11 RER (compared to 1.5-2 RER for maintenance)

Describe exertional myopathy in draft horses (or capture myopathy in zoo animals)

Happens when diet is high energy every day, but not worked every day. After having a period of rest, when beginning work, muscles have a massive release of glycogen causing lactic acidosis (carb-loaded)


Causes muscles to tie up


Selenium and Vitamin E deficiencies are also factors that cause tying up

What are the dietary guidelines (forage, grain, fat) for equine athletes?

Forage: 1-1.5% BW


Grain: 0.5-2% BW (based on activity)


Fat: up to 10% fat for 6-10 weeks prior to event to allow for fat adaptation (based on activity)

What dietary nutrient drives milk production in lactating cows?


Why must fat be limited in lactating cows? What is the max % fat in diet?

glucose (add grain)


Because fat impairs microbe population


Max 6% fat in diet

What is needed when grain is supplemented in a lactating cow's diet?

Na bicarb (buffer acid production in rumen)


Enough energy to minimize BCS loss to 1/5

What are dietary options for lactating cows (low milk, medium milk, high milk) ?

Grass only: seasonal breeders (low milk)


Harvested forage + extra nutrients (more milk)


Forage and grain + fat additives or TMR (high milk)

Among maintenance, growth, and athletic diets, which has the narrowest range that could lead to issues?

Athlete diets

Obesity in feedlot cattle can be somewhat beneficial and is referred to as what on the muscle?


Between Hypertrophy and hyperplasia, how is it achieved?

Marbling


Hyperplasia

Are most animals better adapted to food scarcity or food abundance?

Food scarcity.

Do isocaloric diets always cause the same amount of net calories gain after metabolism (regardless of their primary energy source) ?

Not necessarily. Some studies show low car high fat diets cause a greater RER than high carb low fat diets of the same calorie content.

What substance secreted by adipocytes is correlated with(but doesn't cause) obesity?

Leptin

What are some of the secreted substances that make adipocytes similar to an endocrine organ?

Cytokines: TNF, IL-6


Adipokines: Leptin, Adpionectin, Resistin

How does TNF and IL-6 cause additional problems in obesity?

Causes excessive inflammation

How can gut microflora contribute to obesity?

Some microbiota have increased capacity to harvest energy from the diet than others, causing increased total body fat.

For obese patients, what is a healthy rate of weight loss (in body weight %) per week?

1-2% per week

NEFA = Non-esterified fatty acids =


During negative energy balance, Triglycerides cleave into:

=Free fatty acids


: Glycerol and Free fatty acids

Brain can work on what two energy sources?

glucose and ketone bodies

Most animals in negative energy balance will have what substance increase in their blood?


What animal produces alot of these?

Ketones


Ruminants produce alot

Acetoacetate, B-OH butyrate, and Acetone are examples of...

Ketones

What animals are best at exporting produced lipoproteins from the liver?


What animals are poor at this and will instead store lipoproteins in the liver?

Horses and dogs export


Cats and Cows store

During negative energy balance in equines, what substance is in high concentration in the blood?


What is this high concentration called?

Low Density Lipoproteins (LDL)


Hyperlipemia

Hepatic lipidosis occurs when:


This occurs in which species?

The animal has a negative energy balance and the liver is unable to export accumulated fat from the liver



Obese Cats and Cows

What controls NEFA release from cells?



What does not control NEFA release?

Negative energy balance physiology


Cortisol and Epinephrin


High amounts of Fat



Liver has NO control

Because the liver is often saturated with energy from NEFAs during negative energy balance, what is the appetite of the animal in most cases?

Anorexic

What is Feline Idiopathic Lipidosis?

Fat cat that undergoes a stressful event: leads to weight loss.


Results in accumulation of triglyceride in liver: hepatic lipidosis and liver failure

What are clinical signs of hepatic lipidosis in cats? (6 signs)

Obese animal (may be thinner on presentation


Anorexia


Jaundice (due to retention of bilirubin)


Elevated liver enzymes


Hypoabuminemia


Muscle wasting

What is the most essential step to hepatic lipidosis treatment?

Assisted feeding: usually through NG tube or PEG tube


Should feed high quality protein, high energy (fat) diet.

What are clinical signs of bovine hepatic lipidosis? (4 signs)

Dairy cow with BCS > 4


Weight loss


Anorexia/depression


Any poor response to therapy for mastitis, metritis, etc

What is the treatment options for bovine hepatic lipidosis?

Force feed (via orogastric drench) Ca Propionate, alfalfa, electrolytes, and fluids


IV dextrose (for energy)


B vitamins


Insulin (help move glucose into cells)

What is the general prognosis of bovine hepatic lipidosis?


What is the general prognosis of Equine hyperlipidemia

Poor x 2

What stage in female equine gestation might hyperlipidemia be observed?


Are any treatments necessary? if so, what?

late pregnancy and early lactation (negative energy balance)


Yes!


IV fluids + heparin (activates lipoprotein lipase)


IV dextrose


Insulin

What is Bovine spontaneous ketosis?

High producing cow at peak lactation that could produces a range of symptoms:


-Common Ketosis: off feed, firm feces, decreased milk


-Nervous ketosis: salivaiton, wandering, blind, hyperaesthetic, circling (may look like rabies)

How can ketone levels be tested?

Smell (some noses are sensitive to it)


Urine, Serum, Milk ketone tests

What is the treatment plan for Bovine Spontaneous Ketosis?

IV dextrose (500mL)


Propylene glycol orally (4-8 oz) (acts as a glucose precursor and is somewhat rumen inert)


+/- glucocorticoids (provides temporary glucose from the muscles)

What is a common secondary disease that can occur with any early lactating cow that forms disease?


How do you resolve this issue?

Secondary ketosis


Can treat Ketosis with dextrose and propylene glycol, but MUST treat primary cause

What is pregnancy toxemia? What species does it often affect? What factor predisposes it?

Late gestation pregnant ewe (sheep) with anorexia (no room for food), neurologic signs (not enough nutrients), constipation (dehydrated).

How urgent is pregnancy toxemia once noticed?

Progresses rapidly: is fatal in 12-24 hours

How do you test for pregnancy toxemia?

Signalment/clinical signs


Hypoglycemia


Ketonuria, Ketonemia (signs of negative energy balance)


Renal failure

How do you treat pregnancy toxemia?

Remove lamb (via C section/induction)


IV Dextrose (100-200 mL)


Proplyene glycol (1-2 oz)


IV fluids


Oral Calcium

What is the prognosis of pregnancy toxemia?


What is the best preventative for this disease?

Poor to guarded


Feed grains in late gestation

What disease can present with a late gestation bitch (or queen) in poor BCS and on a low CHO diet (ex. all meat)?


What can this be mistaken for?

Periparturient hypoglycemia

What are clinical signs of periparturient hypoglycemia?


What are treatment recommendation?

Clinical signs: Depression, low glucose, high ketones


Treatment: IV Dextrose bolus followed by 5% infusion


Food with CHO

What is better for weight loss: fat reduced or fiber enhanced?

Fiber enhanced

Common GI disease managements

NPO, small frequent meals

MCT=

Medium chain triglycerides: common fat supplement containing : absorbed directly


ec. coconut oil


energy source not stored as body fat

Referencing inflammation:




Omega 3 =




Omega 6 =

Omega 3 =anti-inflammatory



Omega 6 = pro inflammatory

DHA and EPA are examples of...

Omega 3 fatty acids

Sources of Omega 6's

Corn and soy oil

What EFA is required in cat diets? Why?

Arachidonic acid: cant be synthesized in body

Sources of Omega 3's

Flaxseed, canola oils, marine plants

What EFAs are common in pet diets? What EFAs could be supplemented?

O6; O3 should be supplemented

Name 2 benefits of fiber in monogastric diets

Converts fiber to butyrate which can feed colonic mucosa (less colon cancer?)


Soluble fiber: Blunt glucose absorption

Grain overload causes ______ in ruminants.


Describe how...

Lactic acidosis (and laminitis)


grain rapidly increases VFA production. Drops rumen pH: <5 = bad; can cause LPS and endotoxin release and dehydration/shock

What are clinical signs of acidosis?

Off feed, enlarged rumen (slosh on ballotment), +/- diarrhea, Rumen pH <5, Down, Dead

What are treatments of lactic acidosis?

IV fluids + bicarb


Rumen lavage


Antacids (orally: MgO)


Parenteral antibiotics


Give hay, no grain: Immediate harvest

What is the common cause of low milk fat syndrome?


How do you treat low milk fat syndrome?

Adding grain to increase milk production: milk causes depression in milk fat and causes protein:fat ratio inversion.


Fix by adding hay to diet and removing some grain (look for more cows that chew their cud)

What is the biohydrogenation theory?

In presence of grain, rumen microbes produce fatty acids that inhibit FA synthesis in mammary glands

What is the cause of laminitis in cows and horses?


What is the pathogenesis?

grain overload (can be without grain in diet for horses: fructans in pasture?)


Path: bacterial toxins causing vascular bed damage at hoof; Insulin resistance causing low intracellular glucose; MMP activation

Clinical signs of acute laminitis

Increased digital pulse


Unwillingness to move

Clinical signs of chronic laminitis

Hardship grooves in dorsal wall


Ventral rotation of tip of P3

What are common causes of ulcers?


What species are often affected?


What is the Pathogenesis?


What is treatment?

Finely ground grain feed or Stress


Horses and Pigs


Mucosal Injury (helicobacter)


More hay, less grain

How can excess fat negatively affect ruminants?


What is the max % (of DMI) of fat that ruminants should have?


What about for horses?

Fat acts as bacteriostatic (soap like)


Limit to 6%


Horses can adapt to 12-15%

What does BUN stand for?


It is a byproduct of what?


Increased concentrations are indicative of what 4 things?

Blood urea nitrogen


by product of protein metabolism


Increased concentration are indicative of :


-High protein diet


-Kidney damage


-dehydration


-Urinary blockage

Azotemia is...


What is the cause


How is it tested?

Aka uremia + other N compounds


Caused by kidney disease or failure: retention of waste product


Tested with serum BUN levels

Ad lib of what substances increases glomerular blood flow?


What are the consequences if kidney is diseased?

Protein, P, and NaCl


Increases protein loss in urine


Increases retention of waste products like BUN

K/D diet is designed to reduce what in the blood?

Reduce urea in blood (kidney diet with restricted high quality proteins)

When it comes to dietary protein, is excess safe? If not, when would you recommend restricting it? What type of protein is recommended?

Maybe? Inconclusive:


Excess not safe for renal disease patients


May not be safe for older animals?


Recommend feeding high quality proteins to minimize N excretion

Outside of proteins, what dietary recommendations can be made for renal disease?

Minimize Omega 6's, Supplament Omega 3s

What antibody contributes to mediated reactions to nutrients or additives in food?


What is the most common nutrient that this occurs with?

IgE


Proteins

Where must the allergen contact for protein hypersensitivity to occur?


How can defensive measures break down to make this more likely?

Immune system (via skin, inhalation, GI tract)


Maldigestive disorders (Pancreatitis), IBD, T-suppressor dysfunctions (GALT)

How are proteins modified to reduce hypersensitivity in specialized diets?

Partially hydrolyzed (digested) to reduce molecular weight: non antigenic

How does food allergy differ from food intolerance?

Food allergy = true allergies: produce skin problems/itching and other characteristic symptoms


Food intolerance = diarrhea/vomiting

How is ammonia produced in the body? What organ detoxifies it? What is it converted to by the liver?

Protein breakdown product or urease conversion from urea (rumen)


Liver


Urea

How can dietary urea be beneficial? What types of feeds can it be added to?


What is the risk?

Urea can be converted to amonia by urease in rumen; Amonia is a reactant for microbial protein production: Acts as a cheap source of proteins when fed with high C: corn silage, corn grain, corn stalks, molasses


Risks: Excess urea can produce excess ammonia at higher concentrations than liver can adapt to

What is amuckness and how is it caused?

Too much urea in diet


Caused accidently (urea looks like salt)


causes liver to lose its adaptable ability

What are clinical signs of urea toxicosis?

Salivaiton, urination, diarrhea, SUDGE, Ataxia, Incoordination, tetany




Rapid onset, leads to death quickly

How do you diagnose urea toxicosis?


How do you treat?

Rumen pH > 7.5


Blood ammonia > 0.8 mg/dL


smell of amonia


Treatment: acidify the rumen with vinegar (ion trapping)


Rumen evacuation: tube or surgery

How does ammonia toxicity occur in non-ruminants?


How is it treated?

Liver dysfunction (hepatic encephalopathy), liver shunt


Treatment: restrict protein in diet (high quality digestible protein)


Sterilize the colon (stops urease production) with betadine enema


Ion trap ammonia in colon usuing Lactulose

Of somatic and visceral protein pools, which does the body use first when under stress?

Visceral (somatic if it continues causing muscle wasting)

What are four causes of protein-energy malnutrition?

Inadequate protein in feed (poor quality)


Inadequate intake


Undigestable/unabsorbable protein


Renal disease/diarrhea

What is Johnes disease?

Diarrhea causing protein energy malnutrition and muscle wasting


Occurs in ruminant small intestines with mycobacterium

What is kwashiorkor disease?


What animal is commonly affected?

Protein deficiency in face of adequate energy: Dependent edema in gut, muscle atrophy/weakness


Not common in animals; colitis cases?

What is Marasmus?


What animal is commonly affected?


What is treatment?

Underfed late gestation female


Cattle


Possibly remove fetus?: animal will eat excessively but eventually muscle wasting and nerve damage prevents walking.

What is cancer/cardiac cachexia?


What are symptoms?


What are treatments?

Loss in lean body mass in patients with cancer or chronic heart disease


Decreased appetites


Feeding more calories is unaffective: complicated pathophysiology

What is re-feeding syndrome?


How is it caused?


What are clinical symptoms?


How can it be prevented?

Metabolic disturbance that results from rapid feeding of a previously starved individual


Symptoms: hypophosphatemia, electrolyte imbalance, cardiac failure, edema, death


Prevented by limiting CHO slowly when re-introducing food



What is tryptophan?


What is its traditional effect?


Are animals responsive?

AA: precursor to seratonin


Acts as a mild sedative/aggression reducer


Animal do seem to respond

What are conditionally essential nutrients?


What are examples?

Nutrients that traditionally are not required for the normal maintenance animal, but may be needed under certain condtions (disease, stress, trauma)


Arginine and Glutamine (illness or injury)

Milk fever is what nutrient deficiency? What species does it occur in?

Hypocalcemia


Dairy cows and does

What is hypocalcemia often referred to as in mares?


What about for the bitch or queen?

Transport tetany


Eclampsia (seizures)

What causes the onset of milk fever?


What hormone is commonly associated with this process?

Animal in parturition: Ca intake does not meet the requirement of the fetus and colostrum. Animal can't mobilize Ca stores fast enough and blood calcium drops as a result


PTH: frees Ca from stores

How can you reduce the likelihood of milk fever through diet?

Maintain intake in late gestation and early lactation (do not give excess Ca)


Provide low K or Anionic (acidic) diets in dry periods

How is milk fever often accidentally caused?

Owners give high Ca prepartum but it ends up down-regulating mobilization


Also, high intake of cations (K+) makes cow alkalotic systemically, causing decreased response in PTH receptors

Symptoms of milk fever

Early: milk excitement, tetany, hyperthermia


Mid: depression, flaccid paralysis, recumbency, tachycardia, hypothermia


Late: coma and death

Treatment for milk fever

IV Calcium


500mL Ca borogluconate


Oral Ca (if standing)

How does hypocalcemia in dogs, horses, and cows vary?

Cows = flaccid


Dogs/horses = tetanic (ridged)

When does eclampsia occur most often in a bitch?


Which breeds of dogs are most prone?

Peak lactation (3-4 weeks)


High litter dogs, toy breeds, and young (<4) mothers

How do you treat Eclampsia?

IV Ca gluconate (1-2 mg / kg BW)


Remove puppies for 24 hours


Wean pups if eclampsia recurs

When does eclampsia occur in queens?


How does it present?


What are 2 common causes?


How do you treat?

Last 3 weeks of pregnancy


Depression, hypothermia, flaccidity


Poor diet or excessive Ca supplementation


IV Ca and IV dextrose


Oral Ca supplementation (?)

A chronic low blood Ca is referred to as:


Which animals are prone?


What is a common cause?

Nutritional secondary hyperparathyroidism


Young growing animals and reptiles


Meat/organ tissue diets (high P, low Ca)

Alpacas in Oregon look like they suffer from nutritional hyperparathyroidism: what else must be considered?

Low Ca


Low Vit D***

What are clinical symptoms of nutritional secondary hyperparathyroidism?


How do you treat?

Hyperphosphatemia


Weak bones (prone to fractures)


Lameness, paralysis in small animals


Treat by adjusting diet : more Ca, less P (Dusting crickets with lime in reptile diets)

Lame exotic animals should always be considered for what disease?

nutritional secondary hyperparathyroidism

Grass and winter tetany in ruminants is often associated with what nutrient deficiency?


What is the common cause?

Hypomagnesemia


Lactating cow on lush spring grass


(high dietary K decreases Mg absorption)

What are clinical symptoms of grass tetany?


How do you treat?


How do you prevent?

Beligerance, ataxia, salivation, muscle tremors, bruxism, seizures, recumbency


Serum Mg < 1.4 mg/dL


IV, oral, or enema based Mg


Prevent with high Mg mineral free choice

An adult cat is presented to you with ventroflexion of the neck, stiff gait, and exercise reluctance. You are informed that they have been on a Urinary diet for 3 years. What is your diagnosis and treatment?

Hypokalemia


Treat with IV or oral K

Urolithiasis is what?

Mineralized stones in the urinary tract

What are 3 requirements for urolith formation?

Super saturated solution


Favorable pH (alkaline=struvite; acidic = ammonium urate, Ca oxalate)


Nidus (debris): more likely with inadequate vitamin A

Name which pH environment the following crystals form in:


Ca oxalate


Struvite


Ammonium urate

Acidic: Ammonium urate and Ca oxalate


Alkaline: Struvite

Name symptoms of urolith formation.


How do you definitively diagnose the type?

Aberrant urination (blood)


No urination


Palpation on bladder


Radiography or ultrasound


DDx: Urinalysis: pH and crystals

What crystal formation can not be dissolved with urinary diets?


How can it be decreased (without altering diet type)?

Ca oxalate


Increase water intake (salt in diet, canned food, etc)

What animal does not form Struvite crystals? What are the only 2 animals to produce Ca oxalate crystals?

Struvites don't form in horses


Ca oxalates only form in dogs and cats

For supplementation choice, it is recommended to use the ACCLAIM system. What does ACCLAIM stand for?

A= a recognized name


C= Clinical experience


C= Contents


L= Label claim


A= Administration recommendation


I= Identification of lot (lot #s)


M= Manufacturer information

Are supplaments ever provided to prevent a deficiency?

No

What minerals are deficient in Virginia?

Selenium, Copper, Zinc, Cobalt, Iron

Individuals with White Muscle Disease are deficient in...


What other conditions does this deficiency cause?

Selenium


Retained placenta, stillbirths, neonatal weakness, diarrhea

What animal is most prone to selenium deficiencies?

Young and growing cattle

An animal that is low in antioxidants and T3 may have a ______ deficiency

Selenium (identified in glutathione peroxidase and iodothyronine deiodinase

Horses with degenerative myeloencephalopathy and myodegeneration may be deficient in

Selenium

What is the minimum blood Se levels that should in an animal?


How can deficiency be prevented in areas of low Se?

50 ppb


Oral supplaments

What mineral is regulated by the FDA? Why?

Selenium: because it was reported in one case study as a carcinogen in rats


Limited supplementation to 0.3 ppm in complete diet

Alkali disease is caused by:


How does it present?

Se toxicosis: Ingestion of Se accumulating plants


Cracked hooves, loss of hair on tail

What three elements in high concentraitons reduce Cu absorption?


In what species does Cu deficiency occur most frequently

Molybdenum (Mo), Sulfur (S), Iron (Fe)


Ruminants

Name some clinical signs of Cu deficiency


What is the best means of diagnosis?

Achromotrichia (lack of color in hair)


Lameness/OCD


Enzootic ataxia


Diagnosis: liver biopsy



How does Cu toxicity occur?


What animals are predisposed?


What are some signs?


What is pathognomonic about Cu toxicity?

Stress associated Cu release from liver


Sheep, Bedlington terriers, Domermans with liver dz, humans with wilson dz


Anorexia, weakness, Hemoglobinuria, hemoglobinemia, icterus, anemia, hemolytic crisis


Gun metal blue kidneys

Why is stalling a growing foal and a sheep together a bad idea?

If sheep eats foal feed, it will suffer from Cu toxicity

What clinical signs are exhibited with Zn deficiency?

Skin and feet issues:


-Ruminants and pigs: reduced growth, intake, parakeratosis/hyperkeratosis, reduced immunity and bad feet


-Equine: Developmental orthopedic disease (DOD), Bad skin, immunity and feet


-Canines: Skin lesions, keratitis, conjunctivitis

Where are iodine deficiencies most common?


What clinical signs are exhibited?


What is the best treatment/prevention?

Great lakes


Signs: goiter, weak/hairless newborns, reproductive issues


Treat/prevent with iodized salt

What species is most sensitive to cobalt deficiencies?


Deficiency causes reduced levels of what?


What animals require it in the diet?

Sheep (more than ruminants)


Reduced levels of B12


Monogastrics require it in diet (deficient for vegan diets)

How can the body sequester Fe from bacteria?


What species is most at risk for Fe deficiency?


How is this prevented?


What are signs of Fe deficiency?

Lactoferrins


Baby pigs (can't get from dirt, undergo rapid growth)


Routinely given Fe injections for neonates


Anemia, Dyspnea/thumps

Name two pro-vitamins of Vitamin A

Beta carotene (plants)


Retinol (animals)

Name two pro-vitamins of Vitamin D

Ergosterol (plant)


7-dehydrocholesterol

Name 3 pro-vitamins of Vitamin K

Menandione (synthetic)


Phylloquinone (plant)


Menaquinone (bacteria)

Where is Vitamin A most abundant?


Where might it be deficient?


How does the body adapt for seasonal changes in availability?

Fresh forages+grains


Deficient in stored forages and grains


Liver will store Vitamin A when abundant, release when deficient

In what conditions can Vitamin D be considered Conditionally essential?

In cases when outdoor exposure is minimized:


Indoor animals or Camelids in Oregon

How can Vitamin D toxicity occur?


What are the symptoms?

Mistakes at feed mill/ Rat poisons


Causes gastric hemorrhage and calcification of great vessels

Tocopherol is an example of:


How does supplamenting of this type of nutrient help in the feedlot?

Vitamin E


Vitamin E supplementation improves meat and milk stability, particularly in grain fed animals

How are Vitamin E and Se similar?


Do they always go hand in hand?

Both are cellular antioxidants and reduce incidence of conditions like retained placenta, deficiencies can cause myopathy


No: one can be adequate while the other is deficient

What is warfarin?


What is courmarins

Both are Vitamin K antagonists


Warfarin comes from rat poison


Coumarin comes from sweet clovers

How do you treat Sweet clover toxicity?

Treat with K1 (not K3: renal toxicant)

Star gazing is observed with what condition and what deficiency?

Polioencephalomalacia (ruminants)


Vitamin B deficiency

How does thiamine deficiency present itself in cats?


Thiamine is usually considered adequate in the diet. How can this happen?

Ventroflexion of head, dilated pupils


Overprocessed, thiamine can be destroyed