Anim Biosci > Volume 30(2); 2017 > Article |
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Attributes | Treatments1) | SEM | p value | ||
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CON | BGF-50 | BGF-100 | |||
Body weight | |||||
Kg | 323.3 | 337.6 | 331.9 | 12.8 | 0.713 |
Metabolic size (W0.75) | 76.2 | 78.8 | 77.8 | 1.73 | 0.851 |
Intake (g/kg W0.75) | |||||
Concentrate | 46.7 | 47.7 | 48.8 | 1.34 | 0.752 |
Rice straw | 72.1a | 85.2b | 87.2b | 4.14 | 0.023 |
Total DM | 118.8a | 132.9b | 136.0b | 4.69 | 0.019 |
Nutrient digestibility (%) | |||||
DM | 61.3 | 61.8 | 62.4 | 1.92 | 0.910 |
OM | 64.8 | 67.6 | 68.9 | 1.76 | 0.861 |
CP | 65.6 | 66.1 | 67.3 | 1.76 | 0.920 |
EE | 64.3 | 65.8 | 66.8 | 1.64 | 0.953 |
NDF | 53.3a | 54.6ab | 56.1b | 1.92 | 0.042 |
ADF | 40.6a | 44.1ab | 46.2b | 2.93 | 0.038 |
Nutrient density (%) | |||||
DCP | 6.7 | 7.0 | 7.2 | 0.13 | 0.923 |
TDN | 59.6a | 62.7ab | 64.3b | 1.87 | 0.017 |
Nutrient Intake (g/kg W0.75) | |||||
DCP | 8.2 | 8.3 | 8.3 | 0.47 | 0.901 |
TDN2) | 65.9a | 72.4ab | 73.6b | 3.69 | 0.016 |
SEM, standard error of the mean; DM, dry matter; OM, organic matter; CP, crude protein; EE, ether extract; NDF, neutral detergent fibre; ADF, acid detergent fibre; DCP, digestible crude protein; TDN, total digestible nutrients; DOM, digestible organic matter.
1) CON, cows supplemented with control concentrate mixture (maize grain, 25%; mustard cake, 30%; wheat bran 43%; mineral mixture and common salt, 1% each); BGF-50, cows fed concentrate mixture containing 50% black gram foliage replacing wheat bran; BGF-100, cows fed concentrate mixture containing 100% black gram foliage replacing wheat bran.
Attributes | Treatments1) | SEM | p value | ||
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CON | BGF-50 | BGF-100 | |||
Milk yield | |||||
kg/d | 6.4 | 6.9 | 7.0 | 0.8 | 0.751 |
4% FCM (kg/d) | 6.2 | 6.8 | 6.9 | 0.5 | 0.824 |
Milk composition (%) | |||||
Fat | 3.89 | 3.92 | 3.90 | 0.1 | 0.983 |
Protein | 3.62 | 3.64 | 3.69 | 0.02 | 0.991 |
Total Ash | 0.76 | 0.75 | 0.77 | 0.01 | 0.990 |
SNF | 8.82 | 8.94 | 9.02 | 0.06 | 0.894 |
Total solids | 12.74 | 12.91 | 12.94 | 0.07 | 0.945 |
Yield (g/d) | |||||
Fat | 249.10 | 270.35 | 274.94 | 17.32 | 0.675 |
Protein | 232.43 | 252.12 | 257.90 | 9.52 | 0.753 |
Economics of feeding2) (INR/d) | |||||
Cost of supplement | 59.68 | 54.16 | 45.71 | - | - |
Cost of rice straw | 8.24 | 10.07 | 10.18 | - | - |
Total feed cost | 67.92 | 64.23 | 55.89 | - | - |
Feed cost/kg milk yield | 10.61 | 9.31 | 7.98 | - | - |
1) CON, cows supplemented with control concentrate mixture (maize grain, 25%; mustard cake, 30%; wheat bran 43%; mineral mixture and common salt, 1% each); BGF-50, cows fed concentrate mixture containing 50% black gram foliage replacing wheat bran; BGF-100, cows fed concentrate mixture containing 100% black gram foliage replacing wheat bran.