Dairy Cattle Flashcards

(38 cards)

1
Q

Top dairy states in US

A
Cali 
Wisconsin 
NY 
Penn.
Minn.
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2
Q

For farmers, milk is sold by ____

And priced by the _____

A

Volume, hundredweight
1hwt=100lbs of milk
Approx 11 gal in 1hwt

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3
Q

What percent of milk is approximately water

A

90%

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4
Q

Aside from water, what else makes up the composition of milk

A

Butterfat (or milkfat) and protein

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5
Q

Define pasteurization

A

Milk is heated to a temp that kills pathogenic bacteria or disease producing bacteria (usually at bottling plant)

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6
Q

Define homogenization

A

Milk is mixed so fat globules are broken into smaller particles. So Fat (cream) won’t separate from milk

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7
Q

What does “Vitamin D added” mean

A

Natural vitamin d in milk gets broken down by pasteurization. It’s added back bc we need vitamin d to absorb calcium in milk

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8
Q

Since how long ago have we used animal for human food

A

6000-9000BC

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9
Q

1 hundredweight = how many pounds of milk

A

100

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10
Q

Dairy breeds are less ____ than beef breeds

A

Muscular

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11
Q

Does cross breeding occur in dairy cattle, why or why not

A

Very little. Occurs in beef to create genetic improvement. Dairy do not create “hybrid vigor” ( offspring genetically superior to parents) (aka Heterosis)

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12
Q

6 main dairy breeds

A
Holstein-friesian 
Jersey 
Brown Swiss 
Ayrshire 
Guernsey 
Milking shorthorn
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13
Q
#1 cow breed in dairy production 
What percent of all cattle this breed makes up
A

Holstein-friesian

90% of all cattle

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14
Q

Origin of Holstein F

A

Friesland Germany

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15
Q

Coloration of Holstein F

A

B&W or red&w

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16
Q

Milkfat avg and lactation period for Holstein F

Milk \year avg

A

3.5% 305 days=lactation

23,000 lbs milk / year avg

17
Q

What breed?
Same as B&W Holstein
Separate breed registry in 1964
Production statistic similar to B&W

A

Red & White Holstein

18
Q

Origin of Jersey cow

A

Isle of Jersey (UK)

19
Q

Coloration of Jersey cattle

A

Shades of brown.
Light cream-almost black range
Possible white markings

20
Q

Avg milkfat of Jersey cow and milk/yr avg.

A

5.5% avg. milkfat

17,000lbs milk/yr avg

21
Q

Origin of Guernsey cattle

A

Isle of Guernsey ab 1,000 yrs ago

22
Q

Coloration of Guernsey cattle

A

Any shade of light brown (aka fawn) w/white markings

23
Q

Milk / yr avg and milkfat avg of Guernsey

A

16000 lbs milk/yr

5% milkfat avg

24
Q

Origin of Ayrshire cattle

A

Scotland during late 18th century

25
Ayrshire coloration
May be almost all red, red & white or brown and white
26
Ayrshire milk/yr av | And milkfat av
17000 lbs milk/yr | 4.0% milkfat av
27
Origin of Brown Swiss cattle
Switzerland
28
One of the oldest breeds dating back to 4000 BC
Brown Swiss
29
Coloration of Brown Swiss cattle
Light-Darkbrown
30
Cattle w significant life spans. Longevity
Brown Swiss
31
Brown Swiss milkfat avg and milk/yr avg
19000 lbs/ yr | 4.0% milkfat avg
32
Milking shorthorn origin
England
33
Only dual purpose cattle on list (bred for dairy and beef)
Milking shorthorn
34
Color combos of milking shorthorns
Red Red & w White Roan (disbursed red and white hairs, mixed together)
35
Milking shorthorn milk/yr avg and milkfat avg
15000 lbs /yr | 3.5% milkfat
36
Cow breed selection would be based on
``` Milk production Udder conformation Feet and legs (ability to get around to eat) Body capacity (bigger cow=eat more) Reproductive efficiency ```
37
Purebred/registered vs grade/commercial
Purebred- have traceable pedigree, registered in a breed association Grade- May appear same as registered but don’t come from registered sire or dam
38
What sire and dam mean
Sire- bull used for breeding purposes | Dam- female cow chosen to produce