Dry Matter Intake (Dmi)

Front 1

General classification of Nutrients

Back 1

Front 2

Dry matter Intake for beef cattle

Back 2

Physiological stage with DMI as % of body weight

Maintenance - 2.0 %
Growth - 2.5 %
Pregnancy - 3.0 %
Lactation - 3.0 %
Calving - 4.0 %

Front 3

Dry matter Intake for goats and sheep

Back 3

Physiological stage with DMI as % of body weight

Maintenance - 1.7 – 2.0 %
Growth 3.0 – 5.0 %
Pregnancy - 2.0 – 3.0 %
Lactation - 3.0 – 7.0 %
Kidding - 4.0 – 5.0%

Front 4

Feed Info

Back 4

- THE NUTRIENTS CONTAINED IN FEED
ARE IN THE DRY PORTION, NOT IN THE
WATER CONTENT.

- FEEDS ARE TRADED ON A FRESH
WEIGHT BASIS
- IMPORTANT TO KNOW HOW TO
CONVERT FROM ONE ANOTHER. THIS IS
IMPORTANT WHEN WE BUY MOIST
FEEDS IN ORDER TO CALCULATE THE
TRUE VALUE OF THE PRODUCT

Front 5

Proximate Analysis of Feedstuffs

Back 5

Front 6

EQUATION 1

Back 6

- Fresh weight is weight before
drying
- Dry weight is weight after drying

Front 7

EQUATION 2

Back 7

Water weight is weight lost after
drying

Front 8

EQUATION 3 & 4

Back 8

DRY MATTER (%) = 100 – MOISTURE CONTENT %

DRY MATTER (DM) (kg) =
FRESH WEIGHT (kg) X DM%
100

Front 9

EQUATION 5

Back 9

FRESH WEIGHT (kg)

= DRY MATTER (DM) (kg) X 100
DM%

Front 10

CONVERTING FRESH WEIGHT (AS
FED) TO DRY MATTER

Back 10

DRY MATTER (DM) (kg) =

FRESH WEIGHT (kg) X DM%
100

Front 11

Calculate actual dry matter intake (DMI) if
your goats are eating on average 1.7 kg
of ration with dry matter (DM) of 73%

Back 11

DMI (kg)

= 1.7 kg AS FED X 73
100

= 1.24 kg

Front 12

You buy 250 kg cocoa waste with DM% of
23% for RM 25. Calculate the actual
quantity of cocoa waste purchased in dry
matter and it’s cost.

Back 12

Dry Matter (kg) = 250 kg fresh weight X 23
100
= 57.5 kg

Cost per unit Dry Matter = RM25 per 57.5kg of
dry matter = RM 0.43 per kg Dry Matte

Front 13

You need to have 105 kg dry matter of
banana waste at 24% Dry Matter to feed
30 Boer goats at 250 g of Dry Matter per
day for 2 weeks. Calculate how much
banana waste to purchase

Back 13

Fresh weight (kg) = Dry Matter (kg) X 100
DM%

Fresh weight (kg) = 105 kg of Dry Matter X 100
24

= 437.5 kg of banana waste

Front 14

You need to mix 50 kg ration dry
matter (DM) comprising of
chopped grass (20 kg),
pineapple waste (15 kg), PKC
(13.5 kg) and mineral mix (1.5
kg). Calculate the quantity of
ingredients to mix in a ration

Back 14