Selecting & Judging Dairy Cattle

75

What percentage of differences in milk production is due to the environment?

25

What percentage of differences in milk production is due to heredity?

Challenge or Lead feeding

Feeding method that challenges the cow to reach its maximum potential milk production

Traditional feeding

Feeding method that in which farms feed concentrates individually based on milk production

Total Mixed Rations

Feeding method in which all or almost all ingredients blended together; fed by free choice

60-80

Percentage of dry matter in dairy rations that should be roughages

Haylage

Hay crop made into silage

Alfalfa

Type of hay that is considered the best for dairy cattle use

Corn

Most commonly used grain in dairy cattle rations

Protein supplements

Corn gluten meal, distillers’ dried grains, soybeans and soybean meal, sunflower meal, linseed meal, cottonseed meal, urea, or other nonprotein nitrogen

ADE

Vitamins that cows need supplementation for

85-87

What percentage of water does milk typically contain?

Kind of hay, maturity when cut, and harvesting method

Factors in the feeding value of hay

Reduced field losses

Primary advantage of green chop feeding

9-11 months

At what age do heifers typically reach puberty?

15

In describing the scorecard, the Frame that describes the skeletal structure represents _ percent

25

In describing the scorecard, the Dairy Strength that describes milking ability represents _ percent

20

In describing the scorecard, the Feet and Legs that describes the ability to move with ease represents _ percent

40

In describing the scorecard, the Udder that describes the size and placement of teeth represents _ percent