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Table.6 Effect of dietary calcium (Ca) level on middle toe bone parameters of broilers on d 211

From: Dietary calcium requirements of broilers fed a conventional corn-soybean meal diet from 1 to 21 days of age

Analyzed dietary Ca level, % Toe ash percentage, % Toe ash Ca, % Toe ash P, % Toe ash Ca: P ratio Toe BMD, mg/cm2 Toe BMC, g
0.59 41.6 36.9c 17.99 2.04 45c 0.13
0.70 41.2 37.2bc 18.14 2.06 51bc 0.15
0.80 41.91 37.6abc 18.22 2.10 55ab 0.20
0.88 42.1 37.6abc 18.51 2.07 56a 0.18
0.98 41.9 37.8ab 18.24 2.06 53ab 0.18
1.09 42.3 37.9a 18.07 2.08 46c 0.15
1.18 41.2 38.1a 17.99 2.09 46c 0.17
SEM 0.215 0.530 0.324 0.053 4.5 0.046
P-value
 Ca level 0.20 0.008 0.12 0.52 < 0.0001 0.18
 Linear < 0.0001 0.37
 Quadratic 0.55 < 0.0001
  1. 1 Data represented the means of 6 replicates (n = 6)
  2. 2 Abbreviations: BMC bone mineral content, BMD bone mineral density
  3. a-c Means within a column with unlike superscript letters were significantly different (P < 0.05)