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ICC: Farm Animal > FAC34: Bovine Teat Diseases > Flashcards

FAC34: Bovine Teat Diseases Flashcards

1
Q

What are the different types of bovine teat diseases?

A

Infectious of the teat SKIN

Non-infectious of the teat

Teat injuries/obstructions

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2
Q

What does papillomatosis look like?

A

Warts - rice grain type or more florid projecting warts

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3
Q

What makes papillomatosis a difficult milking disease?

A

It acts as a mechanical interference with milking and harbour bacteria

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4
Q

How do you treat teat warts?

A

Self-limiting in most cases, but you can ligature or rubber ring or snip off, or cryosurgery

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5
Q

What virus is responsible for herpes mammillitis?

A

Bovine herpesvirus 2

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6
Q

What makes herpes mammillitis difficult for milking?

A

The cow develops vesicles then ulcers which are painful and made worse by milking machinery

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7
Q

How do you treat herpes mammillitis?

A

Treat symptomatically with udder cream and control spread by parlous hygiene using iodophor based teat dips

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8
Q

What is the aetiology of pseudocowpox?

A

Parapoxvirus

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9
Q

Is pseudocowpox zoonotic?

A

Yes

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10
Q

What does pseudocowpox look like?

A

Raised papules then healing scabs

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11
Q

How do you treat pseudocowpox?

A

None. Control through parlour hygiene and teat disinfection

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12
Q

What is another name for udder impetigo?

A

Necrotic dermatitis

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13
Q

What is necrotic dermatitis caused by?

A

Staphylococci spp and is associated with poor environmental conditions or skin trauma (allowing the infection)

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14
Q

How do you treat udder impetigo?

A

Based on cleaning and topical application of antiseptic udder cream or occasionally systemic antibiotic

May be secondary to udder oedema

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15
Q

Which cows usually get udder oedema?

A

Primiparous heifers close to calving

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16
Q

How do you treat udder oedema?

A

Usually resolves when lactation starts

If it doesn’t, induce with corticosteroids

17
Q

What are teat chaps?

A

aka Summer sores

Traumatic lesions caused by poor milking machine function or in beef cows - aggressive suckling

Flies will exacerbate the lesions

18
Q

How do you treat teat chaps?

A

Symptomatic topical treatment, remove cause, and manage against flies

19
Q

What causes hyperkeratosis?

A

Caused by poor milking machine function and can be risk factor for mastitis

20
Q

How do you measure the degree of hyperkeratosis?

A

Teat end scoring

21
Q

What is the cause of blackspot?

A

It is a secondary infection caused by fusibacterium necrophorum

22
Q

How do you treat teat lacerations?

A

Most are treated conservatively with topical creams but surgery can be attempted if it is a FRESH WOUND

23
Q

Why should treating a teat end injury be done with lots of consideration?

A

There is a high risk of developing mastitis

24
Q

How do you treat a teat end obstruction caused by a flap of skin?

A

Use sterile hypodermic needle or teat knife - may need canula inserted while healing

25
Q

What are the different types of acquired teat obstructions? What causes them?

A

Caused by mucosal proliferation/granulation

Teat peas/floaters or Pencil Obstruction

26
Q

How do you treat a teat pea?

A

Enlarge teat orifice and squeeze

Use teat instruments

27
Q

What are the infectious causes of teat diseases?

A

Papilllomatosis

Herpes mamillits

Pseudocowpox

Bluetongue

Cowpox and vesicular stomatitis

Udder impetigo

Necrotic dermatitis

28
Q

What are some non-infectious disease of teat skin?

A

Udder oedema

Photosensitisation

Teat chaps

Milking machine induced lesions

Teat lacerations

Teat cistern obstructions

29
Q

What is the cause of a pencil obstruction?

A

Follow diffuse teat trauma leading to a chronic granulomatous reaction of the teat mucosa. Milk will only flow in a very small amount and a firm pencil like obstruction can be palpated in the teat cistern.

ICC: Farm Animal (54 decks)

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