| Age, d | |||||||||
1 | 7 | 14 | 21 | 28 | 35 | |||||
(a) Protease activity in pancreatic tissue, mg/ml/min | ||||||||||
average | 299 ± 27.5 | 150 ± 14.9* | 246 ± 13.5 | 229 ± 28.7 | 252 ± 24.0 | 431 ± 31.5* | ||||
hybrids | 323 ± 30.7 | 200 ± 12.1*a | 317 ± 48.9a | 278 ± 30.1 | 325 ± 46.9a | 487 ± 43.2* | ||||
Plymouth Rock | 314 ± 21.1 | 125 ± 15.7*b | 246 ± 32.2 | 192 ± 50.0* | 206 ± 22.6*b | 402 ± 32.2* | ||||
Cornish | 261 ± 36.1 | 126 ± 14.1*b | 175 ± 26.6b | 217 ± 68.6 | 226 ± 24.7 | 403 ± 87.4 | ||||
(b) Trypsin activity in serum, U/L | ||||||||||
average | 206 ± 12.0 | 23 ± 1.9* | 29 ± 1.3* | 25 ± 1.4* | 19 ± 0.5* | 17 ± 1.6* | ||||
hybrids | 224 ± 12.1 | 19 ± 4.3* | 29 ± 3.9* | 23 ± 2.1* | 19 ± 1.4* | 23 ± 3.6*a | ||||
Plymouth Rock | 191 ± 11.2 | 21 ± 1.9* | 30 ± 1.4* | 23 ± 3.2* | 20 ± 1.4* | 12 ± 2.5*b | ||||
Cornish | 203 ± 12.7 | 29 ± 5.2* | 30 ± 3.7* | 29 ± 3.6* | 18 ± 1.2* | 16 ± 1.1* | ||||
(c) A1PI concentration in serum, mg/dL | ||||||||||
average | 20.2 ± 0.30 | 14.6 ± 0.43* | 14.0 ± 0.32 | 14.2 ± 0.44 | 13.6 ± 0.41 | 15.1 ± 0.20* | ||||
hybrids | 19.9 ± 0.35 | 14.3 ± 0.38* | 14.3 ± 0.34* | 15.3 ± 0.89* | 13.2 ± 0.53* | 15.1 ± 0.52* | ||||
Plymouth Rock | 20.8 ± 0.45 | 15.3 ± 0.77* | 13.6 ± 0.52* | 14.3 ± 0.69* | 14.1 ± 0.89* | 14.8 ± 0.33* | ||||
Cornish | 20.0 ± 0.40 | 14.3 ± 0.52* | 14.1 ± 0.44* | 13.1 ± 0.29* | 13.6 ± 1.38* | 15.3 ± 0.59* | ||||