2005 Nutrient Management Protocol for Ontario Regulation 267/03 Made under the Nutrient Management Act, 2002

Part 3 - Nutrient Units: How Farmers Determine Whether Their Farm Units are Subject to the Regulation

Table of Contents

  1. Using Nutrient Units to Determine the Obligations of Agricultural Operation Carried Out at a Farm Unit
  2. Livestock Information: Type, Nutrient Amount. Nutrient Unit and Housing Capacity

Using the Nutrient Units (NU) concept helps ensure an 'apples to apples' comparison between sizes and types of farm units. Land application requirements for a farm unit, are based on the specific farm unit's nutrient management plan, not nutrient units. Nutrient units are not the same as Livestock Units, which are used in calculating Minimum Distance Separation (MDS) setbacks.

3.1 Using Nutrient Units to Determine the Obligations of Agricultural Operation Carried Out at a Farm Unit

 For agricultural operations that generate manure it is necessary to determine the number of Nutrient Units managed on a farm unit. The number of NUs generated on a farm unit by a particular type of farm animal is calculated by dividing the number of farm animals by the number given in the Nutrient Unit Column shown on Table 3.1 Livestock Information: Type, Nutrient Amount, Nutrient Unit and Housing Capacity. If the farm has more than one type of farm animal then it will have to do this calculation for each type of animal separately, then add all the results to give the total NU generated on the farm.

Table 3.1. Livestock Information: Type, Nutrient Amount. Nutrient Unit and Housing Capacity

Beef
Sub
Type
Ave.
Wt.
(kg)
Utilization
(%)
Liq. Amt
(m3
/1000
kg
/day)
Liq.
DM*
(%)
Sol. Amt
(m3
/1000
kg
/day)
Sol.
DM*
(%)
Nut.
Units
(an
/NU)
Livestock
Housing
(m2
/an.)
Capacity
Backgrounders
(7-12.5
months)
Confinement
308 90 0.0724 9.0 0.0604 22 3
 
Backgrounders
(7-12.5
months)
Yard/Barn
308 90  

 

0.0604 22 3 3.72
Cows
(includes
calves to
weaning)
Confinement
590 100 0.0724 9.0 0.0604 30 1 9.29
Cows
(includes
calves to
weaning)
Deep Bedded
590 100  

 

0.0812 45 1 9.29
Cows
(includes
calves to
weaning)
Yard/Barn
590 100  

  

0.0604 30 1 4.65
Feeders
(7-16
months)
Confinement
362 75   9.0 0.0604 22 3 4.65
Feeders
(7-16
months)
Confinement
Bedded Pack
362 75  

 

0.0687 30 3 4.65
Feeders
(7-16
months)
Confinement
Total Slats
362 75   9.0

 

 

3 1.86
Feeders
(7-16
months)
Yard/Barn
362 75  

 

0.0604 22 3 4.18
Short Keep
(12.5-17.5
months)
Confinement
469 83   9.0 0.0604 22 2 6.04

 

Chickens
Sub
Type
Ave.
Wt.
(kg)
Utilization
(%)
Liq. Amt
(m3
/1000
kg
/day)
Liq.
DM*
(%)
Sol. Amt
(m3
/1000
kg
/day)
Sol.
DM*
(%)
Nut.
Units
(an.
/NU)
Livestock
Housing
(m2
/an.)
Capacity

Broiler Breeder Growers
(females + males trans out)
Floor System

0.708

83

 
 
0.1124

60

300
0.158

Broiler
Breeder
Layer
(females +
males
trans in)
Cages

3.04

90

 
 
0.0749

60

100
0.121

Broiler Breeder Layer (females + males transferred in)
Litter with Slats

2.63

80

 
 
0.0562

65

100
0.195

Broilers
8 week cycle

0.635

70

 
 
0.1249

60

351
0.071

Broilers
9 week cycle

0.726

70

 
 
0.1249

60

300
0.083

Broilers
10 week cycle

0.862

70

 
 
0.1249

60

250
0.099

Broilers
12 week cycle

1.09

70

 
 
0.1249

60

199
0.124

Layer Pullets (day olds)
Cages

0.408

83

0.1124

13.9

0.0624

25

500
0.028

Layer Pullets (day olds)
Litter

0.408

83

 

 

0.1249

58

500
0.186

Laying Hens
Belt and Other Removal System (daily)

1.43

96

0.1124

11.1

0.0624

20

150
 

Laying Hens
Belt With Air Drying (daily)

1.43

96

 

 

0.0624

30

150
 

Laying Hens
High Rise - Stored In Barn

1.43

96

 

 

0.0624

20

150
 

Laying Hens
Liquid - Stored In Barn

1.43

96

0.1124

11.1

 
 
150
 

Chinchilla
Sub
Type
Ave.
Wt.
(kg)
Utilization
(%)
Liq. Amt
(m3
/1000
kg
/day)
Liq.
DM*
(%)
Sol. Amt
(m3
/1000
kg
/day)
Sol.
DM*
(%)
Nut.
Units
(an.
/NU)
Livestock
Housing
(m2
/an.)
Capacity

Breeding Females
(inc males
/rep
/market animals)

0.567

100

 
 

0.1561

66

320
0.74

Dairy
Sub
Type
Ave.
Wt.
(kg)
Utilization
(%)
Liq. Amt
(m3
/1000
kg
/day)
Liq.
DM*
(%)
Sol. Amt
(m3
/1000
kg
/day)
Sol.
DM*
(%)
Nut.
Units
(an.
/NU)
Livestock
Housing
(m2
/an.)
Capacity

Calves Large Frame

90.7

100

0.0750

11.0

0.0955

45

6
3.25

Calves Medium Frame (Guernsey Size)

74.4

100

0.0750

11.0

0.0955

45

7
2.97

Calves Small Frame (Jersey Size)

60.8

100

0.0750

11.0

0.0955

45

8.5
2.60

Heifers Large Frame
Deep Bedded

295

100

 

 

0.0737

40

2
6.50

Heifers Large Frame
Free Stall

295

100

0.0714

11.0

0.0599

19

2
6.97

Heifers Large Frame
Manure Pack Outside Access

295

100

 

 

0.0737

19

2
3.72

Heifers Large Frame
Pack Scrape 1 Side

295

100

 

 

0.0737

19

2
9.29

Heifers Large Frame
Pack Scrape 2 Sides

295

100

 

 

0.0737

19

2
8.36

Heifers Medium Frame (Guernsey Size)
Deep Bedded

249

100

 

 

0.0737

40

2.4
5.20

Heifers Medium Frame (Guernsey Size)
Free Stall

249

100

0.0714

11.0

0.0599

19

2.4
5.57

Heifers Medium Frame (Guernsey Size)
Pack Scrape

249

100

 

 

0.0737

19

2.4
7.43

Heifers Small Frame (Jersey Size)
Deep Bedded

204

100

 

 

0.0737

40

2.9
4.65

Heifers Small Frame (Jersey Size)
Free Stall

204

100

0.0714

11.0

0.0599

19

2.9
4.92

Heifers Small Frame (Jersey Size)
Pack Scrape

204

100

 

 

0.0737

19

2.9
6.50

Milking Age Cows Large Frame
4 Row Free Stall Head To Head

635

100

0.1165

9.1

0.0952

21

0.7
11.61

Milking Age Cows Large Frame
4 Row Free Stall Tail To Tail

635

100

0.1165

9.1

0.0952

21

0.7
10.22

Milking Age Cows Large Frame
6 Row Free Stall

635

100

0.1165

9.1

0.0952

21

0.7
9.29

Milking Age Cows Large Frame
Bedded Pack

635

100

 

 

0.1457

45

0.7
13.94

Milking Age Cows Large Frame
3 Row Free Stall

635

100

0.1165

9.1

0.0952

21

0.7
9.76

Milking Age Cows Large Frame
Sand

635

100

0.1264

9.1

0.1051

21

0.7
 

Milking Age Cows Large Frame
Tie Stall

635

100

0.1165

9.1

0.0952

21

0.7
10.22

Milking Age Cows Medium Frame (Guernsey Size)
Bedded Pack

499

100

 

 

0.1457

45

0.85
13.94

Milking Age Cows Medium Frame (Guernsey Size)
Free Stall

499

100

0.1165

9.0

0.0952

21

0.85
9.29

Milking Age Cows Medium Frame (Guernsey Size)
Tie Stall

499

100

0.1165

9.0

0.0952

21

0.85
8.36

Milking Age Cows Small Frame (Jersey Size)
Bedded Pack

431

100

 

 

0.1457

45

1
13.94

Milking Age Cows Small Frame (Jersey Size)
Free Stall

431

100

0.1165

9.0

0.0952

21

1
8.36

Milking Age Cows Small Frame (Jersey Size)
Tie Stall

431

100

0.1165

9.1

0.0952

21

1
7.43

Deer/Elk
Sub
Type
Ave.
Wt.
(kg)
Utilization
(%)
Liq. Amt
(m3
/1000
kg
/day)
Liq.
DM*
(%)
Sol. Amt
(m3
/1000
kg
/day)
Sol.
DM*
(%)
Nut.
Units
(an.
/NU)
Livestock
Housing
(m2
/an.)
Capacity

Elk Adults (>24 months) (includes unweaned offspring)

272

100

 

 

0.0456

30

2
 

Elk Feeders

127

75

   

0.0456

30

6
 

Elk/Red Deer Hybrid Adults (includes unweaned offspring)

170

100

   

0.0456

30

4
 

Elk/Red Deer Hybrid Feeders

97.5

75

   

0.0456

30

10
 

Fallow Deer Adults (>24 months)(includes unweaned offspring)

45.4

100

   

0.0456

30

13
 

Fallow Deer Feeders

31.8

75

   

0.0456

30

23
 

Red Deer Adults (>24 months)(includes unweaned offspring)

99.8

100

   

0.0456

30

7
 

Red Deer Feeders

63.5

75

   

0.0456

30

14
 

White Tailed Deer Adults (>24 months)(includes unweaned offspring)

56.7

100

   

0.0456

30

11
 

White Tailed Deer Feeders

40.8

75

   

0.0456

30

21
 

Ducks
Sub
Type
Ave.
Wt.
(kg)
Utilization
(%)
Liq. Amt
(m3
/1000
kg
/day)
Liq.
DM*
(%)
Sol. Amt
(m3
/1000
kg
/day)
Sol.
DM*
(%)
Nut.
Units
(an.
/NU)
Livestock
Housing
(m2
/an.)
Capacity
Peking
Breeders

2.95

100

 

 

0.3765

57

105
0.46
Peking
Growers

1.04

90

0.3627
7.0

0.3471

57

105
0.167

Emu
Sub
Type
Ave.
Wt.
(kg)
Utilization
(%)
Liq. Amt
(m3
/1000
kg
/day)
Liq.
DM*
(%)
Sol. Amt
(m3
/1000
kg
/day)
Sol.
DM*
(%)
Nut.
Units
(an.
/NU)
Livestock
Housing
(m2
/an.)
Capacity
Adults (includes offspring to market size) 56.7 0
 

 

 

 

12
11.15

Fox
Sub
Type
Ave.
Wt.
(kg)
Utilization
(%)
Liq. Amt
(m3
/1000
kg
/day)
Liq.
DM*
(%)
Sol. Amt
(m3
/1000
kg
/day)
Sol.
DM*
(%)
Nut.
Units
(an.
/NU)
Livestock
Housing
(m2
/an.)
Capacity
Breeding Females
(inc. rep/market
animals/males)
6.80 80
 

 

0.0874 36
25
9.29

Goats
Sub
Type
Ave.
Wt.
(kg)
Utilization
(%)
Liq. Amt
(m3
/1000
kg
/day)
Liq.
DM*
(%)
Sol. Amt
(m3
/1000
kg
/day)
Sol.
DM*
(%)
Nut.
Units
(an.
/NU)
Livestock
Housing
(m2
/an.)
Capacity

Dairy Does (including unweaned offspring)
Confinement

77.1

100

 

 

0.0453

30

8
1.86

Dairy Kids
Confinement

16.3

100

   

0.0453

30

 
0.74

Feeder Kids (>20 kg)
Confinement

18.1

0

   

0.0375

30

 
0.74

Mature Meat Goat (including unweaned offspring)

72.6

0

   

0.0375

30

8
1.39

Horses
Sub
Type
Ave.
Wt.
(kg)
Utilization
(%)
Liq. Amt
(m3
/1000
kg
/day)
Liq.
DM*
(%)
Sol. Amt
(m3
/1000
kg
/day)
Sol.
DM*
(%)
Nut.
Units
(an.
/NU)
Livestock
Housing
(m2
/an.)
Capacity

Large Frame (including unweaned offspring)
Box Stalls

680

100

 

 

0.0887

46

0.7
30.19

Medium Frame (including unweaned offspring)
Box Stalls

454

100

   

0.0887

46

1
23.23

Small Frame (including unweaned offspring)
Box Stalls

227

100

   

0.0887

46

2
16.26

Mink
Sub
Type
Ave.
Wt.
(kg)
Utilization
(%)
Liq. Amt
(m3
/1000
kg
/day)
Liq.
DM*
(%)
Sol. Amt
(m3
/1000
kg
/day)
Sol.
DM*
(%)
Nut.
Units
(an.
/NU)
Livestock
Housing
(m2
/an.)
Capacity
Breeding Females
(inc. rep/market
animals/males)
1.81 80
 
  0.1249 36
90
2.32

Ostrich
Sub
Type
Ave.
Wt.
(kg)
Utilization
(%)
Liq. Amt
(m3
/1000
kg
/day)
Liq.
DM*
(%)
Sol. Amt
(m3
/1000
kg
/day)
Sol.
DM*
(%)
Nut.
Units
(an.
/NU)
Livestock
Housing
(m2
/an.)
Capacity

Adults (includes offspring to market size)

136

0

 

 

   
4
9.29

Rabbits
Sub
Type
Ave.
Wt.
(kg)
Utilization
(%)
Liq. Amt
(m3
/1000
kg
/day)
Liq.
DM*
(%)
Sol. Amt
(m3
/1000
kg
/day)
Sol.
DM*
(%)
Nut.
Units
(an.
/NU)
Livestock
Housing
(m2
/an.)
Capacity
Breeding Does (inc bucks/rep/fryers)
1 Tier Cages
4.54 100
 
  0.1561 45
40
1.80
Breeding Does (inc bucks/rep/fryers)
2 Tier Cages
4.54 100     0.1561 45
40
0.89
Breeding Does (inc bucks/rep/fryers)
3 Tier Cages
4.54 100     0.1561 45
40
0.59

Sheep
Sub
Type
Ave.
Wt.
(kg)
Utilization
(%)
Liq. Amt
(m3
/1000
kg
/day)
Liq.
DM*
(%)
Sol. Amt
(m3
/1000
kg
/day)
Sol.
DM*
(%)
Nut.
Units
(an.
/NU)
Livestock
Housing
(m2
/an.)
Capacity
Dairy and Feeder Lambs
Confinement
39.9 75
 
  0.0378 30
20
0.93
Dairy and Feeder Lambs
Outside Access
39.9 75     0.0378 30
20
0.56
Dairy Ewes & Rams (including unweaned offspring and replacements)
Confinement
93.0 100     0.0556 40
6
2.14
Meat Ewes & Rams (including unweaned offspring and replacements)
Confinement
79.4 100     0.0556 40
8
2.14
Meat Ewes & Rams (including unweaned offspring and replacements)
Outside Access
79.4 100     0.0453 30
0
1.39

Swine
Sub
Type
Ave.
Wt.
(kg)
Utilization
(%)
Liq. Amt
(m3
/1000
kg
/day)
Liq.
DM*
(%)
Sol. Amt
(m3
/1000
kg
/day)
Sol.
DM*
(%)
Nut.
Units
(an.
/NU)
Livestock
Housing
(m2
/an.)
Capacity

Feeders
Full Slats

52.2

85

0.1311

5.0

 

 

6
0.84

Feeders
Full Slats (wet/dry feeders)

52.2

85

0.0837

7.0

 

 

6
0.84

Feeders
Deep Bedded

52.2

85

 

 

0.1561

45

6
1.30

Feeders
Partial Slats

52.2

85

0.1311

5.0

 

 

6
0.93

Feeders
Partial Slats (wet/dry feeders)

52.2

85

0.0837

7.0

 

 

6
0.93

Feeders
Solid Scrape

52.2

85

 

 

0.0843

13

6
1.11

Feeders
Solid Scrape (wet/dry feeders)

52.2

85

 

 

0.0843

20

6
1.11

Gilts - Breeders

90.3

85

0.0893

2.7

 

 

5
1.39

Sows (dry) (AI)
non-SEW

136

100

0.1167

2.5

0.0974

15

3.64
2.79

Sows (dry) and Boars
non-SEW

136

100

0.1167

2.5

0.0974

15

3.5
2.79

Sows (dry) and Boars
SEW

136

100

0.1167

2.5

0.0974

15

3.33
2.32

Sows with Litters
non-SEW

181

100

0.1167

2.1

0.0974

15

3.5
6.50

Sows with Litters
SEW

181

100

0.1167

2.1

 

 

3.33
5.11

Sows, boars, and litters
SEW

181

100

0.1167

2.1

 

 

3.5
 

Weaners
non-SEW

15.9

80

0.1779

2.7

0.1542

13

20
0.40

Weaners
non-SEW (wet/dry)

15.9

80

0.1305

3.6

0.1542

13

20
0.40

Weaners
SEW

11.3

80

0.1779

2.7

0.1542

13

20
0.35

Weaners
SEW (wet/dry)

11.3

80

0.1305

3.6

0.1542

13

20
0.35

Turkeys
Sub
Type
Ave.
Wt.
(kg)
Utilization
(%)
Liq. Amt
(m3
/1000
kg
/day)
Liq.
DM*
(%)
Sol. Amt
(m3
/1000
kg
/day)
Sol.
DM*
(%)
Nut.
Units
(an.
/NU)
Livestock
Housing
(m2
/an.)
Capacity

Breeder Toms

15.9

100

 

 

0.0437

58

 
0.56

Broilers <6.2kg

2.00

70

   

0.0624

58

133
0.186

Hens 6.2-10.8 kg

3.54

85

   

0.0624

58

107
0.232

Toms >10.8 kg

4.76

75

   

0.0624

58

76
0.325

Turkey Breeder Layers

9.07

100

   

0.0437

58

 
0.37

Turkey Pullet (0 to 6 weeks)

0.680

80

   

0.1249

58

267
0.093

Veal
Sub
Type
Ave.
Wt.
(kg)
Utilization
(%)
Liq. Amt
(m3
/1000
kg
/day)
Liq.
DM*
(%)
Sol. Amt
(m3
/1000
kg
/day)
Sol.
DM*
(%)
Nut.
Units
(an.
/NU)
Livestock
Housing
(m2
/an.)
Capacity

Grain Fed Veal

134

90

0.0724

9.0

0.0604

22

6
6.97

Milk Fed Veal

102

80

0.0906

0.7

0.1389

40

6
2.79

Notes: * DM = dry matter

  1. Average weight rounded to 3 significant digits.
  2. Manure production numbers rounded to 4 decimal places.
  3. Blank manure production and dry matter entries indicate a non-typical housing process.
  4. Livestock housing capacity is rounded to 2 decimal places if above 0.2 m2/animal and 3 decimal places if below 0.2 m2/animal.
  5. Blank livestock housing capacity values indicate that information is not available.
  6. Livestock density is based on barn area only for a housing system(outdoor yard is not included)
  7. Livestock housing capacity numbers are used to develop an estimated barn size.

Note: For animals not listed on the chart above the number of animals per nutrient unit can be calculated by determining:

    • the number of animals that will produce the amount of nutrients that give the fertilizer replacement value of the lower of 43 kilograms of nitrogen or 55 kilograms of phosphate as nutrient
    • assistance by OMAFRA staff will be available to complete this calculation

For more information:
Toll Free: 1-877-424-1300
E-mail: ag.info.omafra@ontario.ca
Author: OMAFRA Staff
Creation Date: 12 August 2005
Last Reviewed: 12 August 2005