I believe this comes from Merck's. They didn't have a section on peafowl so this concerns pheasants, I think as close to peas.
Nutrient Requirements of Pheasants a
Energy base
0–4 wk
4–8 wk
9–17 wk
Breeding
kcal ME/kg dietb
2,800
2,800
2,700
2,800
Protein (%)
28
24
18
15
Glycine + serine (%)
1.8
1.55
1
0.5
Lysine (%)
1.5
1.40
0.8
0.68
Methionine + cystine (%)
1.0
0.93
0.6
0.6
Linoleic acid (%)
1
1
1
1
Calcium (%)
1.0
0.85
0.53
2.5
Phosphorus, available (%)
0.55
0.5
0.45
0.40
Sodium (%)
0.15
0.15
0.15
0.15
Chlorine (%)
0.11
0.11
0.11
0.11
Iodine (mg)
0.3
0.3
0.3
0.3
Riboflavin (mg)
3.4
3.4
3.0
4.0
Pantothenic acid (mg)
10
10
10
16
Niacin (mg)
70
70
40
30
Choline (mg)
1,430
1,300
1,000
1,000
a Requirements are listed as percentages or as mg/kg of diet. For values not listed, see requirements
Does anyone have this information on peas?