UNDERSTANDING - 9 - TC_Environmental Factors

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* 1. Enter your first and last name

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* 2. Select all that apply. Which of the following are correct regarding dry and roughened skin?

Teat skin loses moisture, dries out, and becomes rough.

It is most pronounced on the teat barrel.

Chapped skin decreased the risk of transferring mastitis.

Effects are increased by teat dipping with high emollient concentration.

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* 3. Select the best answer. Repeated exposure to wetness can lead to skin roughness due to removal of ____ from skin.

Natural oils

Hair

Disinfectant

Vesicles

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* 4. Which statement is correct regarding sunburn:

Is more likely in pigmented teats.

Is necessarily related to temperature.

Must not be confounded with vesicles from viral infections.

Only affects the outside of teats.

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* 5. Select all that apply. Which of the following are true regarding frostbite?

Skin and tissue gets hard when frozen.

Skin turns black when thawed.

May occur when temperature is below -4F.

Usually greatest affects on posterior surfaces of back teats.

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* 6. A product of interaction of sunlight and phytotoxins or other environmental chemical or drugs is called ______.

Photosensitization

Pasteurization

Contamination

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* 7. Allergic reactions may lead to symptoms that are systemic or localized on teats and udder.

True

False

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* 8. Which of the following are correct regarding chemical damage?

Teat disinfectants may cause a problem if mixed or handled incorrectly.

Effects from disinfectants used in bedding are shown vertically on the teats and skin of the lower body.

Splashing of footbaths having disinfectants will cause discrete localized areas of damage spread over the posterior distal body.

All of the above are correct.

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* 9. Select all that match the following regarding insect damage.

puncture wounds: Biting Species

puncture wounds: Rasping mouthparts of muskiest

enlarged wounds: Rasping mouthparts of muskiest

excision of tissue: Yellow-jacket wasp

posterior infection: Ticks

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* 10. Suckling damage is less commonly observed on newly calved animals at the first milking.

True

False

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* 11. When the skin becomes dry or damaged, the anterior surfaces are more susceptible to abrasions from hocks.

True

False

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* 12. Select all of the following that are correct regarding cuts.

They are often the result of incorrect stall size.

Failure to treat cuts may be a problem as milking often reopens the wound.

Are usually caused by hooves when cows are rising or lying down.

Cuts are not related to hoof management.