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Flashcards in Energetics Deck (27):
1

Fat metabolisable energy (ME)

37.1 kJ/g

2

Starch ME

17.3 kJ/g

3

Glucose ME

15.4 kJ/g

4

Protein ME

15.9 kJ/g

5

Alcohol ME

29.8 kJ/g

6

How is RER and RQ calculated?

VCO2/VO2

7

How many kJ in 1 kcal

4.2kJ

8

How many kcal in 1kJ?

0.24

9

1 watt is __ J/s

1

10

1kW is ___ kJ/s

1

11

Total cost of lactation (4)

Milk energy content - 2.8 x milk produced per day
Total energy content - milk energy content x days of lactation
Additional lactation cost - 0.25 x lactation days
Total lactation cost - additional lactation cost + milk energy content

12

Working out amount of energy from each nutrient from total energy of diet

Nutrient percentage x total energy from diet

13

Amount of grams from each nutrient

Energy from nutrient / ME

14

Energy loss from protein (4)

Workout net nitrogen loss
Total nitrogen loss - net loss x days
Total protein loss - total nitrogen loss x 6.25
Total protein loss x 17.7

15

Loss of lean body mass

5 x total protein loss (g)

16

Metabolic rate

Weight^0.75

17

KJ/min of oxygen

Litres of oxygen per min x 20.18

18

Watts

KJ/min x 1000/60

19

Work out energy expenditure using PAR

Hours x PAR x BMR per hour

20

Work out loss of fat mass (6)

Total energy requirement: energy requirement per day x days
Total energy intake: energy intake per day x days
Energy deficit : energy requirement - energy intake
Energy loss from fat: energy deficit - protein energy loss
Grams of fat: energy loss from fat/39.1
Kg of fat: grams of fat/1000

21

Starch gross energy

17.5

22

Glucose gross energy

15.6

23

Fat gross energy

39.1

24

Protein gross energy

22.9

25

Alcohol gross energy

29.8

26

What is the ME unit?

KJ/g

27

Calculate energy content of a nutrient from its gram quantity

Grams of nutrient x ME