Sheepies Flashcards

1
Q

What are some management considerations unique to small ruminants?

A

-Predators: coyotes and others will be more likely to target them due to their size
-Fencing- woven wire is the best (keeps animals in and predators out)
-deworming- intestinal parasites are the primary reason for production losses
-Market: often producers have to sell to specialty markets up north, a lot of planning has to go into when you send your animals to market

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2
Q

What type of sheep are gaining popularity in the US for meat?

A

Hair sheep! The wool on meat wool sheep isnt worth anything anyways

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3
Q

What are the most common breeds of meat goats? Dairy?

A

Meat: Bohr
Dairy: Nubians and Saanen

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4
Q

How much colostrum should newborn small ruminants receive in the first 2 hours of life? What about in the first 24 hours?

A

2 hrs: 50 ml/kg minimum
24 hours: 200 ml/kg (but most of this should be in the first 12 hours as this is when the gut is close to being closed)

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5
Q

What is the current recommendation for how to dip the navel of newborn small ruminants?

A

1/3 blue chlorhex solution, 2/3 water

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6
Q

When should you give Bo-se?

A

If you are in a selenium deficient area
- should give in the first couple of days of life, and if known problem in the herd you can give again at weaning

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7
Q

What is the preferred nipple type for bottle feeding?

A

Pritchard

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8
Q

What is a good backup if you dont have lamb colostrum replacer on hand?

A

Bovine
- both are made with bovine IgG

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9
Q

What should be done between days 2-5 of life of a small ruminant?

A

-Disbudding
-tail docking

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10
Q

What is the toxic dose of lidocaine in small ruminants?

A

6 mg/kg
- it is vital that you get an accurate weight on the youngins
-consider diluting to 1% with sodium bicarb (reduces chance of toxicity and chance of pain on injection)

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11
Q

Describe the process of disbudding in small ruminants

A

Use lidocaine on cornual nerve and try to hit some of the nerves caudal to the bud as well
-need to do this early as after the bud attaches to the skull there is a high risk of exposed sinus and sinusitis
-should sedate with xylazine (0.5 mg/kg- dilute to 1 mg/mL and give IM)
-can use a disbud box for proper restraint
-use the 3 seconds on and 3 seconds off technique to avoid the risk of thermal injury
-use alushield for fly control
-consider NSAIDs for pain- either injectable or oral

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12
Q

How short should you dock the tail of a sheep? What is the risk of cutting too short?

A

No shorter than the distal end of the caudal tail fold
-many use banding techniqu
Risks: cutting too short can cause loose anal tone and increased risk of prolapses, urinary incontinence and infection

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13
Q

When should lambs/kids receive their first dose of CD & T?

A

At 6-8 weeks of age (aka prior to weaning)
-should booster 4 weeks later
-use 18 or 20 g, .75-1 inch needle SQ in the armpit
-begin monthly FAMACHA

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14
Q

When should you start weaning lambs/kids? How should you go about it?

A

Start weaning when they reach 2-2.5X their birth weight or when they are eating 0.25 lbs of grain per day, plus some hay
-start creep feeding with a lamb/kid starter grain that contains amprolium (15 mg/kg for prevention, 50 mg/kg PO for 5 days for treatment)

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15
Q

When should you perform castration if you intend to keep an animal as a wether?

A

Wait until 6 months of age in order to avoid the risk of urinary calculi
-can use emasculator like a horse or if older you can perform scrotal ablation
-be sure the animals are vaccinated for tetanus
-be sure there is adequate fly control
-consider local blocks to either the cord or in the testicle- can give sedation in the testicle as well (ketamine and midazolam)
-pain management with banamine or meloxicam

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16
Q

What are some important things that you should do pre-breeding in ewes and rams?

A

Booster CD & T
-if there is a problem in the herd consider chlamydia, campylobacter or leptospirosis
-FAMACHA/foot trim
-BSE on ram/buck
-think about any culls- poor udder conformation or fibrosis present, prolapses, thin and obese females

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17
Q

How long should you leave bucks and rams in for the breeding season?

A

Bucks - 32 days
Rams- 27 days

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18
Q

Why is laparoscopic AI gaining so much popularity in sheep?

A

-They have a very complicated cervix
-in goats you can perform cervical AI with fresh semen, but in sheep in order to ensure success you have to go laparoscopically (conception rate 50-80%)

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19
Q

How can you diagnose pregnancy in small ruminants?

A

Ultrasound- 45 days transabdominally, 30-35 days rectally. Look for C shaped placentomes
BIO-PRYN- pregnancy specific protein B blood test- found only in the placenta of a growing fetus (not reliable before 30-35 days)

20
Q

What is important to do in ewes 30 days pre-partum?

A

-Booster with CD & T
-increase nutrition and ensure that females continue eating (avoid risk of pregnancy toxemia)
-FAMACHA- watch for temporary immunosuppression

21
Q

What facilities are important to ensure a healthy lambing process?

A

A barn (12-14 ft per ewe) and Jugs (4 x 4 feet)

22
Q

When should you intervene if there is no progress during a birth?

A

After 30 minutes of active straining with no progress
-placenta should pass 30-60 min after the fetus

23
Q

What are the primary medical concerns in lambs during the first 24 hours of life?

A

Hypothermia and hypoglycemia
-need to monitor temp carefully

24
Q

Why do pregnant women need to be especially careful when working with pregnant small ruminants?

A

A lot of the small ruminant abortion diseases are zoonotic, including brucella, campylobacter, chlamydia, coxiella, and toxoplasma

25
Q

What is a simple way to prevent prolapses in sheep/goats?

A

A prolapse spoon which is attached via a harness

26
Q

When should you treat a small ruminant for parasites based on the fecal egg count results?

A

-usually treat things above 1500
-or if there is clinical signs, treat when above 500-750

27
Q

When does a sheep need a scrapie tag?

A

When they will be sold to any other farm and wont go directly to slaughter

28
Q

Describe scrapie disease

A

-similar to BSE in cattle
-a prion disease
-extremely pruritic and results in scraping off wool

If raising purebreds/replacements consider trying to get a scrapie free flock certification

29
Q

What are the main considerations for foot trimming in small ruminants?

A

Trim parallel to the coronary band
-the inside horn should be shorter than the outside
-must clean tools in between farms
-should run all new animals through a copper sulfate bath to keep foot rot off of a farm (once its there, its always there)

30
Q

Describe the basics of SR nutrition

A

-feed 3-4% of body weight for lactating animals
-separate animals into production groups
-feed mostly forage
-no grain for pet goats or wethers after 1 year (or else you will have stones)
-supplement grain for high producing animals, growing kids and lactating does
-mineral should be fed loose (and must be species specific due to risk of copper toxicity)

31
Q

What should new additions in a herd be tested for?

A

CAE, OPP, CL, Johnes disease, TB, brucellosis
- need to be isolated for at least 30-60 days

32
Q

What are the clinical signs of lice in small ruminants and how should you treat it?

A

Clinical signs: pruritis, rough hair coat
Treatment: permethrins
-reapply in 10-14 days

33
Q

What is the main coccidia that affects small ruminants? What does it cause clinically?

A

Protozoa: eimeria spp
-fecal or oral transmission, can live in the environment for long periods of time
-usually clinically affects young animals (3 weeks to 5 months), who develop immunity after that
-any stressful event can cause loss of immunity
-clinical signs include decreased appetite, listlessness/ADR, watery and bloody diarrhea leading to heavily stained perineal area
-dehydration often leading to death occurs due to severe electrolyte abnormalities

34
Q

Describe nervous and chronic coccidiosis

A

Nervous- can develop polio as a result of infection
Chronic- can lead to poor haircoat and pot-belly appearance

35
Q

How can you diagnose and treat coccidiosis?

A

Diagnosis: fecal flotation, will see on McMasters egg per gram as well. On necropsy will see multiple raised, white nodules in the intestinal mucosa

Treatment: supportive care (IV fluids, oral electrolytes, watch out for secondary invaders)
-coccidiostats- a lot used but none approved for treatment (albon- sulfadimethoxine, corid- amprolium, marquis- ponazuril)

Prevention: decrease stress around the time of weaning, keep the housing hygienic (clean and dry bedding essential), and add coccidiostats to feed when young

36
Q

What is P tenuis also known as? What does it cause clinically?

A

Deer meningeal worm
-infected snails are consumed by ruminants and larvae migrate to the spinal cord via the peritoneum
-leads to a wide array of neurologic abnormalities including paresis or paralysis of limbs (usually hindlimb and asymmetrical), knuckling, abnormal reflexes, down, usually still mentally alert

37
Q

How do you diagnose and treat P Tenuis?

A

Diagnose via neuro exam, can also add on CSF tap for definitive diagnosis (will see increased total protein and white, high eosinophils)

Treatment: dewormer and anti-inflammatory, injectable ivermectin SQ once, fenbendazole orally for 5 days, dexamethasone

Prevention? Nothing really

38
Q

What can tapeworms cause in severe cases?

A

Usually do not cause issues but in severe cases can see constipation, slow growth or pot belly appearance
-treat with fenbendazole or albendazole

39
Q

What is the HOTC complex?

A

The 4 main parasites of concern in small ruminants:
1. Haemonchus contortus
2. Ostertagia
3. Trichostrongyle
4. Cooperia

All will probably be present, but H contortus is usually the biggest player

40
Q

T/F: All small ruminants have some level of parasite burden

A

True- the key is to manage clinical signs and breed resistant animals

41
Q

What are the main clinical signs associated with the HOTC complex?

A

Diarrhea, weight loss, poor haircoat, anemia (5-9%), hypoproteinemia (bottle jaw)

42
Q

What are some methods to diagnose HOTC?

A

EPG, FAMACHA, PCV/TS

43
Q

Describe how the McMasters egg per gram test is conducted?

A

Weight out 1, 2, 3 or 4 grams of feces (more is always better)
-fill to 20 grams with fecasol, then pour through strainer
-count the total number of eggs in both sides of the slide and multiply the value relative to grams of feces used

44
Q

What are the current recommendations for treatment of HOTC?

A

3 different dewormers all used at once:
- Fenbendazole
- Moxidectin
- Levamisole

Consider blood transfusions (20-40 mL/kg): if acute anemia, perform if PCV <15%, if chronic perform if PCV <12%

45
Q

What is the best way to control HOTC?

A

-Monthly famacha scoring
-grazing management
-pasture rotation
-identify heavy shedders and those resistant to deworming (cull them)
-dont feed on the ground
-consider adding on copper oxide particles (not in sheep)