UNDERSTANDING - 10 - AOC_Teatcup Knowledge

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* 1. Enter your first and last name

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* 2. What best describes the goal of machine milking?

achieving a balance among milking quickly, milking completely, and milking gently

removing all available milk from each cow's udder

removing milk from each cow's udder as quickly as possible

removing milk without producing hyperkeratosis or congestion of the teat tissues

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* 3. The "ramp up" or period of delayed milk ejection, is generally shorter when:

the udders contain more milk (a higher percentage of udder fill)

the cows are milked while experiencing the effects of adrenaline

the teats are not pre-stimulated

the cows are milked four times per day

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* 4. Maximizing milking speed often results in less complete, and/or less gentle, milking.

True

False

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* 5. Vacuum and pulsation have dominant effects in:

the a-phase

the peak flow period

the low flow period

the d-phase

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* 6. Maximizing gentleness results in faster, and more complete, milking.

True

False

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* 7. Select all of the actions that reduce the period of delayed milk ejection.

cows have higher udder fill

attaching the cluster as soon as the cows enter the parlor

aggressively using electrified crowd gates to move the cows into the parlor as quickly as possible

10 to 15 second udder prep, then 60 to 90 second lag time

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* 8. During the low flow rate period, the characteristics of liners and clusters are more important than those of vacuum and pulsation.

True

False

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* 9. Effective closure of the teat canal after milking depends on the integrity of the keratin lining of the canal and the muscle tone of the teat end tissues.

True

False

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* 10. Completeness of milking is much more important with more frequent milking.

True

False

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* 11. Select all that match the phases of milking with the factors that influence the duration of each phase.

Phase 1: from unit attachment to peak flow (the "ramp up" phase): milking management factors, not usually machine related

Phase 2: peak flow period: machine-related factors, mainly milking vacuum level and liner characteristics

Phase 3: declining and low flow period: machine-related factors, mainly points of detachment

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* 12. The integrity of the keratin lining of the teat canal is affected by the balance of keratin production in the canal and the removal rate.

True

False

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* 13. Select all of the measures of the gentleness of milking.

teat end thickness

teat wall thickness

teat canal openness after milking

teat-end hyperkeratosis

teat length

teat diameter

strip yield

average milk flow rate

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* 14. If milking completeness is maximized, the result is generally slower and less gentle milking.

True

False

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* 15. Teat congestion is affected by:

the vacuum applied to the teat end during milking

the vacuum applied to the barrel and base of the teat during milking

the vacuum developed in the teat sinus during milking

the level of liner compression

all of the above

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* 16. The muscle tone of the teat end depends on the effectiveness of congestive relief of the teat end tissues.

True

False