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15 Cards in this Set
- Front
- Back
total milk production breed rank
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Holstein-Friesian
Ayrshire Jersey Guernsey Brown Swiss |
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% fat in milk breed rank
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Jersey
Guernsey Brown Swiss Ayrshire Holstein-Friesian |
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milk composition
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87.5% water, 12.5% solids
of solids: 3.8% fat (butterfat) 3.5% Protein 4.5% Carbohydrate (lactose) 0.7% Minerals (Ca and P) |
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General Production:
calf birth weights calving interval longevity |
calf birth weights: 50-95 lbs
Calving interval: 13.1 mos longevity: 3.5 lactations (5-6 yrs old) |
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reasons for culling dairy cow (5)
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1. reproductive failure
2. mastitis 3. low milk yield 4. feet and let unsoundness 5. disease and injury |
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all breed milk yield
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16,871 lbs
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type score
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80 out of 100
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general trends
what has happened to total yearly MILK? |
# herds decreasing
avg. herd size increasing total # cows in US decreasing milk production per cow has been increasing = total yearly milk stayed constant |
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Ayrshire (color, mature weight, origin, lbs milk, % butterfat)
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light to deep cherry red.
dark eyes and muzzle horned, usually dehorned mature: 1200 lb Scotland avg production: 15,100 lb milk 3.9% butterfat hardy, can handle extremes nervous, hard to handle. (low milk, low milk solids) |
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Brown Swiss (color, mature weight, origin, lbs milk, % butterfat)
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Brown, Tan, Grey
polled and horned mature: 1400 lbs Switzerland avg: 10,031 lb milk 4.0% butterfat hardy, heavy boned. dual purpose in Europe. good veal. one of oldest breeds |
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Guernsey (color, mature weight, origin, lbs milk, % butterfat)
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shades of golden brown with white
polled and horned mature: 1100 lb Channel Island 14,100 lb milk 4.5% butterfat yellow color due to fat. characteristic leg problems |
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Holstein-Friesian (color, mature weight, origin, lbs milk, % butterfat)
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Black and white
polled and horned mature: 1500 lbs Holland and NW Germany 20,317 lbs milk 3.6% butterfat. large and rugged. US breed. 70% of US dairy cow production |
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Jersey (color, mature weight, origin, lbs milk, % butterfat)
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brown, tan
polled and horned mature: 1000 lb Isle of Jersey 14,275 milk 4.7% butterfat 2nd most popular. fine boned, dished forehead. high milk production compared to smaller body size |
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Dairy Herd Improvement Association
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most common, official testing and management recordkeeping system. primary means for genetic improvement.
provides: cow production, reproductive, mastitis data, bull test data. nutrition and breeding, due dates, dry dates. |
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what is type score based on? related to milk production?
related to longevity? |
based on conformation only. not much relation to type score and milk production. very related to longevity
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