Nutritional components | Concentrate levels (% DM) | ||||
---|---|---|---|---|---|
|
|||||
0 | 17 | 34 | 51 | 68 | |
Dry matter (g/kg of natural matter) | 890.40 | 891.34 | 892.28 | 893.22 | 894.16 |
Organic matter (g/kg DM) | 932.17 | 928.91 | 925.66 | 922.40 | 919.15 |
Crude protein (g/kg DM) | 92.60 | 109.64 | 126.68 | 143.72 | 160.76 |
Neutral detergent fibre (g/kg DM) | 708.05 | 616.10 | 524.15 | 432.20 | 340.25 |
Acid detergent fibre (g/kg DM) | 284.80 | 245.89 | 206.97 | 168.06 | 129.15 |
Total carbohydrates (g/kg DM) | 823.58 | 808.11 | 792.63 | 777.15 | 761.68 |
Non-fibre carbohydrates (g/kg DM) | 115.53 | 192.00 | 268.48 | 344.96 | 421.43 |
Ether extract (g/kg DM) | 23.42 | 25.17 | 26.92 | 28.67 | 30.42 |
Total digestible nutrients (g/kg DM)1) | 563.46 | 574.41 | 635.24 | 678.69 | 732.37 |
Metabolizable energy (kcal/d)2) | 203.71 | 207.67 | 229.66 | 245.37 | 264.78 |
1) Estimated by Silva et al [23].
Items | Equations | ||
---|---|---|---|
|
|||
Hankins and Howe [1] (HH46) | Valadares Filho et al [2] (V06) | Marcondes et al [3] (M12) | |
Carcass physical composition | |||
% Muscle | %MC = 16.08+0.8×%Mrib9–11 | - | %MC = 57.33+0.2×%Mrib9–11–1.39×VF |
% Fat | %FC = 3.54+0.8×%Frib9–11 | - | %FC = 0.689+0.3×%Frib9–11+1.177×%VF |
% Bone | %BC = 5.52+0.57×%Brib9–11 | - | %BC = 29.26+0.3×%Brib9–11–0.21×%CD–0.95×%VF |
Carcass chemical composition | |||
% Protein | %PC = 6.19+0.65×%Prib9–11 | % PC = 4.05+0.78×%Prib9–11 | % PC = 17.92+0.6×%Prib9–11–0.17×%CD |
% Ether extract | %EEC = 3.49+0.74×%EErib9–11 | %EEC = 4.96+0.54×%EErib9–11 | %EEC = 4.31+0.31×%EErib9–11+1.37×%VF |
% Water | %WC = 16.83+0.75×%Wrib9–11 | %WC = 34.97+0.45×%Wrib9–11 | %WC = 48.74+0.28×%Wrib9–11–0.017×EBW |
Empty body chemical composition | |||
% Protein | - | % PEBW = 4.96+0.76×%Prib9–11 | % PEBW = 10.78+0.47×Prib9–11–0.21×%VF |
% Ether extract | - | %EEEBW = 4.56+0.6×%EErib9–11 | %EEEBW = 2.75+0.33×EErib9–11+1.8×%VF |
% Water | - | %WEBW = 31.42+0.51×%Wrib9–11 | %WEBW = 38.31+0.33×Wrib9–11–1.09×%VF+0.5×OV |
MC, muscle in the carcass; FC, fat in the carcass; BC, bone in the carcass; Mrib9–11, muscle in the section between the 9th and 11th ribs; Frib9–11, fat in the section between the 9th and 11th ribs; Brib9–11, bone in the section between the 9th and 11th ribs; CD, carcass dressing in the empty body; PC, protein in the carcass; EEC, ether extract in the carcass; WC, water in the carcass; Prib9–11, P in the section between the 9th and 11th ribs; EErib9–11, EE in the section between the 9th and 11th ribs; Wrib9–11, water in the section between the 9th and 11th ribs; VF, visceral fat; EBW, empty body weight; OV, organs and viscera.
Items | Muscle+fat | Bone | ||||
---|---|---|---|---|---|---|
|
|
|||||
Obs | HH46 | M | Obs | HH46 | M | |
Mean (kg) | 193.65 | 189.78 | 171.47 | 34.99 | 39.61 | 41.27 |
SD | 55.63 | 54.48 | 46.04 | 6.76 | 8.46 | 7.93 |
Maximum | 302.61 | 280.06 | 257.67 | 54.40 | 62.70 | 63.35 |
Minimum | 104.93 | 110.46 | 100.26 | 24.95 | 25.03 | 27.82 |
r | - | 0.98 | 0.99 | - | 0.38 | 0.45 |
CCC | - | 0.98 | 0.89 | - | 0.31 | 0.33 |
Regression | ||||||
Intercept | - | 2.90 | −12.22 | - | 22.98 | 18.97 |
SE | - | 6.68 | 4.53 | - | 5.66 | 6.03 |
p-value1) | - | 0.668 | 0.012 | - | <0.001 | 0.005 |
Slope | - | 1.01 | 1.20 | - | 0.30 | 0.39 |
SE | - | 0.03 | 0.03 | - | 0.14 | 0.14 |
p-value2) | - | 0.882 | <0.001 | - | <0.001 | <0.001 |
MSEP | - | 107.31 | 611.64 | - | 93.92 | 98.61 |
SB | - | 14.92 | 491.69 | - | 22.24 | 40.62 |
MaF | - | 0.07 | 82.44 | - | 33.82 | 22.91 |
MoF | - | 92.31 | 37.50 | - | 37.86 | 35.08 |
Obs, observed values; HH46, predicted values by the equations Hankins and Howe [1]; M, predicted values by the equations Marcondes et al [3]; SD, standard deviation; r, correlation coefficient; CCC, correlation and concordance coefficient; SE, standard error; MSEP, mean square error of prediction; SB, square bias; MaF, magnitude of random fluctuation; MoF, model of random fluctuation.
Items | Crude protein | Ether extract | Water | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
|
||||||||||
Obs | HH46 | V06 | M12 | Obs | HH46 | V06 | M12 | Obs | HH46 | V06 | M12 | |
Mean (kg) | 42.20 | 41.79 | 42.42 | 41.90 | 37.91 | 42.00 | 36.17 | 37.74 | 136.51 | 131.35 | 135.65 | 131.21 |
SD | 10.20 | 9.37 | 9.30 | 8.96 | 16.56 | 18.80 | 15.04 | 15.41 | 30.89 | 30.26 | 32.55 | 29.09 |
Maximum | 61.27 | 61.01 | 61.76 | 60.28 | 84.03 | 75.39 | 63.28 | 60.56 | 198.28 | 197.62 | 202.92 | 187.64 |
Minimum | 25.11 | 26.77 | 27.55 | 27.34 | 12.25 | 12.56 | 12.81 | 15.21 | 87.46 | 85.82 | 85.22 | 84.44 |
r | - | 0.99 | 0.98 | 0.98 | - | 0.94 | 0.94 | 0.93 | - | 0.98 | 0.99 | 0.99 |
CCC | - | 0.98 | 0.98 | 0.97 | - | 0.91 | 0.93 | 0.93 | - | 0.97 | 0.99 | 0.97 |
Regression | ||||||||||||
Intercept | - | −2.62 | −3.49 | −4.60 | - | 3.14 | 0.30 | 0.00 | - | 4.83 | 9.14 | −1.62 |
SE | - | 1.52 | 1.68 | 1.80 | - | 2.62 | 2.68 | 2.95 | - | 4.89 | 3.66 | 3.52 |
p-value1) | - | 0.095 | 0.050 | 0.016 | - | 0.240 | 0.911 | 0.999 | - | 0.332 | 0.019 | 0.648 |
Slope | - | 1.07 | 1.08 | 1.12 | - | 0.83 | 1.04 | 1.00 | - | 1.00 | 0.94 | 1.05 |
SE | - | 0.04 | 0.04 | 0.04 | - | 0.06 | 0.07 | 0.07 | - | 0.04 | 0.03 | 0.03 |
p-value2) | - | 0.050 | 0.057 | 0.009 | - | 0.005 | 0.566 | 0.953 | - | 0.945 | 0.028 | 0.054 |
MSEP | - | 3.60 | 4.08 | 4.98 | - | 58.13 | 32.21 | 33.90 | - | 59.37 | 24.34 | 46.13 |
SB | - | 0.17 | 0.05 | 0.09 | - | 16.78 | 3.03 | 0.03 | - | 26.63 | 0.74 | 28.09 |
MaF | - | 0.45 | 0.50 | 1.06 | - | 10.15 | 0.35 | 0.00 | - | 0.01 | 3.82 | 2.28 |
MoF | - | 2.98 | 3.53 | 3.82 | - | 31.20 | 28.83 | 33.87 | - | 32.73 | 19.79 | 15.76 |
Obs, observed values; HH46, predicted values by the equations Hankins and Howe [1]; V06, predicted values by the equations Valadares Filho et al [2]; M12, predicted values by the equations Marcondes et al [3]; SD, standard deviation; r, correlation coefficient; CCC, correlation and concordance coefficient; SE, standard error; MSEP, mean square error of prediction; SB, square bias; MaF, magnitude of random fluctuation; MoF, model of random fluctuation.
Items | Crude protein | Ether extract | Water | ||||||
---|---|---|---|---|---|---|---|---|---|
|
|
|
|||||||
Obs | V06 | M12 | Obs | V06 | M12 | Obs | V06 | M12 | |
Mean (kg) | 69.30 | 69.19 | 67.40 | 60.43 | 59.88 | 62.05 | 216.20 | 213.81 | 209.77 |
SD | 14.77 | 13.75 | 13.73 | 23.81 | 24.27 | 25.45 | 45.08 | 46.00 | 43.76 |
Maximum | 97.36 | 97.99 | 96.48 | 112.98 | 103.44 | 99.21 | 311.61 | 311.35 | 302.25 |
Minimum | 43.78 | 48.70 | 44.77 | 26.20 | 22.61 | 25.26 | 143.71 | 141.42 | 139.50 |
r | - | 0.98 | 0.99 | - | 0.96 | 0.96 | - | 0.99 | 0.99 |
CCC | - | 0.98 | 0.97 | - | 0.96 | 0.96 | - | 0.99 | 0.98 |
Regression | |||||||||
Intercept | - | −3.50 | −2.20 | - | 4.03 | 4.63 | - | 8.79 | 1.50 |
SE | - | 2.90 | 2.31 | - | 3.34 | 3.26 | - | 5.73 | 4.70 |
p-value1) | - | 0.236 | 0.350 | - | 0.238 | 0.167 | - | 0.136 | 0.752 |
Slope | - | 1.05 | 1.06 | - | 0.94 | 0.90 | - | 0.97 | 1.02 |
SE | - | 0.04 | 0.03 | - | 0.05 | 0.05 | - | 0.03 | 0.02 |
p-value2) | - | 0.215 | 0.082 | - | 0.272 | 0.050 | - | 0.263 | 0.293 |
MSEP | - | 9.14 | 10.07 | - | 45.12 | 50.69 | - | 46.93 | 67.31 |
SB | - | 0.01 | 3.61 | - | 0.31 | 2.62 | - | 5.71 | 41.34 |
MaF | - | 0.50 | 0.67 | - | 1.92 | 6.34 | - | 1.83 | 1.02 |
MoF | - | 8.63 | 5.79 | - | 42.89 | 41.73 | - | 39.39 | 24.94 |
Obs, observed values; V06, predicted values by the equations Valadares Filho et al [2]; M12, predicted values by the equations Marcondes et al [3]; SD, standard deviation; r, correlation coefficient; CCC, correlation and concordance coefficient; SE, standard error; MSEP, mean square error of prediction; SB, square bias; MaF, magnitude of random fluctuation; MoF, model of random fluctuation.