Review of Midterm

Question 1

Within the U.S., the average dairy cow produces approximately ________ pounds of milk per lactation per year

Answer 1

23,000

Question 2

Rank the 4 types of milking parlors from least to most expensive to install on a per cow basis:
swing over, parallel, robotic, rotary

Answer 2

1. Swing over (least expensive)
2. Parallel
3. Rotary
4. Robotic (most expensive)

Question 3

What quantitative measure of milk quality indicates poor hygiene/sanitation in a dairy?

Answer 3

SPC (standard plate count)

Question 4

When evaluating heifers using genomic testing data, managers often breed their top heifers using:

Answer 4

sexed semen