## Lesson 5 Quiz

(Lesson 5. Grazier’s Arithmetic continued)

1. True or False: Determining proper stocking rates will have little effect on profitability for a grazing operation. (Review the lesson material.)

2. If your stocking rate is too low you will ____________________ and if your stocking rate is too high, it will result in ____________________. (Review the lesson material.)

1. waste forage; higher gains
2. increase utilization; higher gains
3. waste forage; lower animal intake and output
4. increase utilization; lower gains

3. Name three factors used to determine carrying capacity. (Review the lesson material.)

4. True or False: Annual forage production is the total amount of forage produced per acre that is harvested mechanically. (Review the lesson material.)

5. True or False: Seasonal utilization rate is the percentage of the annual forage production harvested by grazing livestock. (Review the lesson material.)

6. True or False: Average daily intake should be set at the level that will be required to yield the desired animal performance level. (Review the lesson material.)

7. Between the Carrying Capacity and Stock Density equations, which one uses a quantity of forage dry matter actually allotted to the animals for a grazing period? (Review the lesson material.)

8. Which of the following is most representative of the length of a grazing season in Maine? (Review the lesson material.)

1. 5 days
2. 60 days
3. 165 days
4. 365 days

9. According to Figure 1, what would your approximate seasonal utilization rate be if your grazing period length were 10 days? (Review the lesson material.)

1. 30%
2. 43%
3. 55%
4. 65%

10. Again, according to Figure 1, what would your approximate grazing period utilization rate be if your grazing period length were 10 days? (Review the lesson material.)

1. 30%
2. 43%
3. 55%
4. 65%

11. A producer is grazing steer weighing 750 lb/hd with a daily rate of gain goal at 2.0 lb/hd. His/her timothy/legume pasture is 8-12 inches tall with 20% bare ground after the last grazing. He/she wishes to graze the paddock for 4 days. The producer figures his/her utilization rate is around 50% and intake is approximately 3.5% of body weight. Using the dry matter table and the stock density formula, what should the stocking density be? (Review the lesson material.)

1. 10,700 lb/ac
2. 6,250 lb/ac
3. 3,000 lb/ac
4. 12,500 lb/ac

12. Using the information from problem 11, how many head could the producer stock/acre/4 day grazing period? (Review the lesson material.)

1. 7
2. 8
3. 11
4. 14

13. Again, using the information from problem 11, how big would the producer need to make the paddock if he/she is grazing 40 steers? (Review the lesson material.)

1. .5 acre
2. 1 acre
3. 2.5 acres
4. 4.8 acres

14. According to the simple approach, if a producer was grazing 1000 lb beef cows in thick pasture that is 12 inches tall and wishes to graze the forage down to 4 inches, how many acres/day does the producer need to graze 80 cows? (Review the lesson material.)

1. .33 acre/day
2. .91 acre/day
3. 1.4 acres/day
4. 1.8 acres/day