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Animal Science > Dairy Cattle Production > Flashcards

Dairy Cattle Production Flashcards

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Biology 101 flashcards
1
Q

An animal of a recognized Bree is called a

A

Purebred

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2
Q

Offspring resulting from mating of purebred sure with a grade/native or between dairy animals not purebred

A

Dairy grade

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3
Q

Genetically unimproved animals that lack dairy characteristics

A

Scrubs

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4
Q

Biggest dairy cattle breed

A

Holstein Friesian

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5
Q

Smallest dairy cattle breed

A

Jersey

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6
Q

Dairy cattle breed that produces the highest volume of milk

A

Holstein Fresian

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7
Q

Dairy cattle breed known to produce milk high in beta-carotene

A

Guernsey

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8
Q

Calves are the youngest group of dairy cattle whose age falls from birth to

A

3months

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9
Q

Group of dairy cattle that falls in the age group of 12 months to breeding size

A

Yearling heifers

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10
Q

Growing animals

A

3-12 months

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11
Q

Breedable heifers

A

Breeding size to calving

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12
Q

Target breeding weight of heifers

A

250-300kg

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13
Q

Ideal breeding age of heifers

A

14-15 months of age

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14
Q

Period of time that occurs in sexually mature, non- pregnant female cattle, when they are receptive to mounting or riding activity by a bull or other cows

A

Estrus

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15
Q

Interval from the first signs of sexual receptivity at estrus to the start of the next estrus

A

Estrus cycle

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16
Q

Average estrus cycle of dairy cattle

A

21 days average

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17
Q

Cows come into estrus any time of the year

A

True

18
Q

Internal examination of the ovaries via the rectum

A

Rectal palpation(60 days after successful breeding)

19
Q

Gestation period of cattle

A

280-283 days 9months

20
Q

Ideal calving age of heifers

A

2years old

21
Q

Difficulty in calving

A

Dystocia

22
Q

The first milk a female produces after the young is born

A

Colostrum

23
Q

Must be provided with the first 1-12 hours of life

A

Colostrum

24
Q

Return of uterus to its normal size and condition after calving

A

Uterine involution ave. 45 days voluntary waiting period

25
Q

Ideal lactation of dairy cows

A

305 days

26
Q

A cow that is not presently producing milk

A

Dry milk

27
Q

Average dry period of cattle

A

2months

28
Q

Ideal calving interval

A

12 months 365 days

29
Q

Orientation of housing facility in tropical countries

A

East-west

30
Q

Types of housing facility wherein each cow is confined in stanchion or tie stalls

A

Conventional stall barn

31
Q

Types of housing facility wherein the cows are free to move among resting, feed and watering areas

A

Free-stall barn

32
Q

Performed on calves to prevent the growth of horns by destroying the horn buttons

A

Disbudding

33
Q

A type of identification which allows animals to be identified at a distance

A

Branding

34
Q

In freeze branding, the branding iron should only be in contact with the animals skin for _____ in ph

A

One minute

35
Q

Removal of horn in animals by cutting

A

Dehorning

36
Q

Phase of the estruos cycle wherein ovulation occurs

A

Metestrus

37
Q

Condition wherein the females do not exhibit regular estrous cycle s

A

Anestrus

38
Q

Condition wherein estrous cycles are shorter than 18 days

A

Irregular estrous cycle

39
Q

Condition wherein the animal comes to heat at irregular but abnormally short intervals maybe 8-12 days apart with heat lasting 3-4 days

A

Constant estrus

40
Q

Most reliable sign that cow heifer is in heat

A

Standing heat/standing still when mounted

41
Q

Used in detecting animals in heat wherein a halter device is worn under the chin of a vasectomized bull or androgenized cow

A

Chin-ball mating device/harness

Animal Science (4 decks)

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