Page 778 - Hand rearing birds second

782 Appendix B

Table B.1 Energy requirements of passerine chicks.

Body Weight Basal Metabolic Maintenance Energy Kilocalories per Day for
(grams) Rate (BMR) Requirement (MER) in kcal/Day Growth when Healthy

2 1.2 1.8 2.7–5.5
4 2.1 3.1 4.6–9.2
6 2.8 4.2 6.3–12.5
10 4.1 6.1 9.2–18.4
12 4.7 7.0 10.5–21.0
14 5.3 7.9 11.8–23.6
16 5.8 8.7 13.1–26.1
18 6.3 9.5 14.3–28.5
20 6.9 10.3 15.4–30.9
25 8.1 12.2 18.2–36.5
30 9.3 13.9 20.9–41.8
35 10.4 15.7 23.5–47.0
40 11.5 17.3 26.0–51.9
45 12.6 18.9 28.4–56.7
50 13.6 20.5 30.7–61.4
60 15.6 23.5 35.2–70.4
70 17.6 26.3 39.5–79.0
80 19.4 29.1 43.7–87.3
90 21.2 31.8 47.7–95.4
100 22.9 34.4 51.6–103.2
120 26.3 39.5 59.2–118.4
140 29.5 44.3 66.4–132.9
160 32.6 49.0 73.4–146.9