Rice hulls

Byproduct of the processing of rice grain (Oryza sativa L.), consisting mostly in outer grain envelopes.

Values

Main constituents
Parameter As fed On DM Unit Other Unit SD Range Count SD Range Count SD Range Count
Dry matter 91.7 100 % - 4.7 85.8 -97.8 53 4.2
Crude protein 3.5 3.8 % - 1.4 1.2 -7.1 48 1.6 1.2 -7.8 51
Crude fibre 38.5 42 % - 7.7 14.7 -52.7 56 8.3 16.2 -59 49
Crude fat 1.5 1.6 % - 1.3 0.2 -5.1 36 1.4 0.2 -5.4 37
Ash 16 17.5 % - 3.7 7.3 -27.1 44 4 8.1 -26.5 51
Insoluble ash 14 15.3 % - 4.2 6.1 -22.8 16 4.5 6.7 -24.9 16
NDF 60.1 65.6 % - 10.6 43.3 -72.9 10 11.4 46 -80 19
ADF 43.7 47.7 % - 9.9 29.9 -60.7 10 10.7 31.6 -72 19
Lignin 14.1 15.3 % - 2.5 10.2 -17.9 6 2.7 10 -19.2 14
Water insoluble cell walls 62.4 68.1 % -
Starch 5.3 5.7 % - 4.2 0.7 -14.7 24 4.6 0.8 -16.3 16
Total sugars 0 0 % -
Gross energy (kcal) 3690 4030 kcal/kg - 300 3280 -3970 6 300 3520 -4320 7
Gross energy (MJ) 15.5 16.9 MJ/kg - 1.2 13.7 -16.6 6 1.3 14.7 -18.1 7
Mineral elements
Parameter As fed On DM Unit Other Unit SD Range Count SD Range Count SD Range Count
Calcium 1.2 1.3 g/kg - 2.3 0.1 -12.2 25 2.5 0.1 -13.2 26
Phosphorus 3 3.3 g/kg - 7.9 0.3 -41.9 25 8.7 0.3 -44.6 26
Phytate phosphorus 2.6 2.8 g/kg 85 % P
Magnesium 1 1.1 g/kg - 1 0.3 -3.9 17 1.1 0.3 -4.4 17
Potassium 3.7 4 g/kg - 1.5 1.5 -6.5 17 1.6 1.7 -7.3 17
Sodium 0.2 0.22 g/kg - 0.05 -0.4 4 0.06 -0.43 4
Chlorine 0.9 1 g/kg - 1 -1 3
Sulfur 1.5 1.6 g/kg -
Dietary cation-anion difference -13 -15 mEq/kg -
Electrolyte balance 78 85 mEq/kg -
Manganese 405 442 mg/kg - 1 435 -448 2
Zinc 39 43 mg/kg - 1 1
Copper 1 2 mg/kg - 1 1
Iron 51 56 mg/kg - 1 1
Selenium 0.2 0.2 mg/kg -
Fatty acids
Parameter As fed On DM Unit Other Unit SD Range Count SD Range Count SD Range Count
C12:0 lauric acid 0.01 0.01 g/kg 0.1 % FA
C14:0 myristic acid 0.07 0.08 g/kg 0.7 % FA
C16:0 palmitic acid 1.9 2.1 g/kg 18.1 % FA
C16:1 palmitoleic acid 0.03 0.03 g/kg 0.3 % FA
C18:0 stearic acid 0.2 0.2 g/kg 1.9 % FA
C18:1 oleic acid 4.2 4.6 g/kg 40.2 % FA
C18:2 linoleic acid 3.8 4.1 g/kg 35.9 % FA
C18:3 linolenic acid 0.2 0.2 g/kg 1.5 % FA
C20:0 arachidic acid 0.02 0.02 g/kg 0.2 % FA
Fatty acids 1.1 1.2 g/kg 70 % fat
Vitamins and pigments
Parameter As fed On DM Unit Other Unit SD Range Count SD Range Count SD Range Count
Vitamin E 61 67 mg/kg - 1
Ruminants
Parameter As fed On DM Unit Other Unit SD Range Count SD Range Count SD Range Count
UFL INRA 2018 0.28 0.31 per kg -
UFV INRA 2018 0.18 0.2 per kg -
PDIA Systali 9 10 g/kg -
PDI INRA 2018 43 47 g/kg -
Rumen protein balance INRA 2018 -48 -52 g/kg -
Fill Unit ruminants INRA 2018 0.247 0.27 per kg -
ME ruminants INRA 2018 (kcal) 890 970 kcal/kg -
NE lactation ruminants INRA 2018 (kcal) 490 540 kcal/kg -
NE meat production ruminants INRA 2018 (kcal) 320 350 kcal/kg -
ME ruminants INRA 2018 (MJ) 3.7 4.1 MJ/kg -
NE lactation ruminants INRA 2018 (MJ) 2.1 2.2 MJ/kg -
NE meat production ruminants INRA 2018 (MJ) 1.3 1.5 MJ/kg -
OM digestibility ruminants INRA 2018 - 36 %
Energy digestibility ruminants INRA 2018 - 29.9 %
N degradability ruminants INRA 2018 - 52 %
Starch degradability ruminants INRA 2018 - 77 %
DM degradability ruminants INRA 2018 - 64 %
Lysine ruminants INRA 2018 - 6.7 % PDI
Threonine ruminants INRA 2018 - 5 % PDI
Methionine ruminants INRA 2018 - 2.4 % PDI
Isoleucine ruminants INRA 2018 - 5.5 % PDI
Valine ruminants INRA 2018 - 5.9 % PDI
Leucine ruminants INRA 2018 - 8.5 % PDI
Phenylalanine ruminants INRA 2018 - 5.3 % PDI
Histidine ruminants INRA 2018 - 1.7 % PDI
Arginine ruminants INRA 2018 - 4.7 % PDI
UFL FL1 INRA 2018 0.3 0.33 per kg -
UFV FL1 INRA 2018 0.2 0.22 per kg -
PDIA FL1 INRA 2018 8 9 g/kg -
PDI FL1 INRA 2018 43 47 g/kg -
Rumen protein balance FL1 INRA 2018 -47 -52 g/kg -
UFL FL4 INRA 2018 0.24 0.26 per kg -
UFV FL4 INRA 2018 0.15 0.16 per kg -
PDIA FL4 INRA 2018 11 12 g/kg -
PDI FL4 INRA 2018 44 48 g/kg -
Rumen protein balance FL4 INRA 2018 -50 -54 g/kg -
UFL INRA 2007 0.29 0.31 per kg -
UFV INRA 2007 0.19 0.21 per kg -
PDIA INRA 2007 11 12 g/kg -
PDIN INRA 2007 20 21 g/kg -
PDIE INRA 2007 29 32 g/kg -
ME ruminants INRA 2007 (kcal) 930 1010 kcal/kg -
ME ruminants INRA 2007 (MJ) 3.9 4.2 MJ/kg -
OM digestibility ruminants INRA 2007 - 37.4 % 1
Energy digestibility ruminants INRA 2007 - 31.3 %
N digestibility ruminants - 0 % 1
N digestibility, intestinal, ruminants - 55 %
NDF digestibility ruminants - 57 %
N degradability ruminants (k=0.06) - 49 %
Immediately degradable N (a) - 11 %
Potentially degradable N (b) - 76 %
Degradation rate of particles N (c) - 0.06 h-1
Starch degradability, ruminants (k=0.06) - 73 %
Immediately degradable starch (a) - 19 %
Potentially degradable starch (b) - 81 %
Degradation rate of particles starch (c) - 0.12 h-1
DM degradability ruminants (k=0.06) - 66 %
Immediately degradable DM (a) - 48 %
Potentially degradable DM (b) - 35 %
Degradation rate of particles DM (c) - 0.065 h-1
Fatty acids digestibility ruminants - 61 %
Absorbable P ruminants 1.9 2.1 g/kg 64 % P
Absorbable Ca ruminants 0.7 0.7 g/kg 55 % Ca
Lysine ruminants INRA 2007 - 6 % PDIE
Threonine ruminants INRA 2007 - 4.8 % PDIE
Methionine ruminants INRA 2007 - 2.2 % PDIE
Isoleucine ruminants INRA 2007 - 5.4 % PDIE
Valine ruminants INRA 2007 - 6 % PDIE
Leucine ruminants INRA 2007 - 8.5 % PDIE
Phenylalanine ruminants INRA 2007 - 5.3 % PDIE
Histidine ruminants INRA 2007 - 1.7 % PDIE
Arginine ruminants INRA 2007 - 4.6 % PDIE
Pigs
Parameter As fed On DM Unit Other Unit SD Range Count SD Range Count SD Range Count
DE growing pig (kcal) 440 480 kcal/kg -
ME growing pig (kcal) 380 420 kcal/kg -
NE growing pig (kcal) 150 160 kcal/kg -
DE adult pig (kcal) 960 1050 kcal/kg -
ME adult pig (kcal) 840 920 kcal/kg -
NE adult pig (kcal) 390 420 kcal/kg -
DE growing pig (MJ) 1.8 2 MJ/kg -
ME growing pig (MJ) 1.6 1.8 MJ/kg -
NE growing pig (MJ) 0.6 0.7 MJ/kg -
DE adult pig (MJ) 4 4.4 MJ/kg -
ME adult pig (MJ) 3.5 3.8 MJ/kg -
NE adult pig (MJ) 1.6 1.8 MJ/kg -
Energy digestibility growing pig - 12 %
Energy digestibility adult pig - 25.9 %
OM digestibility growing pig - 18.4 %
OM digestibility adult pig - 32 %
N digestibility growing pig - 12.3 %
N digestibility adult pig - 100 %
Crude fat digestibility pig - 0 %
Digestible P pig (no phytase) 0.4 0.4 g/kg 12 %
Poultry
Parameter As fed On DM Unit Other Unit SD Range Count SD Range Count SD Range Count
AMEn cockerel (kcal) 520 560 kcal/kg -
AMEn broiler (kcal) 480 530 kcal/kg -
AMEn cockerel (MJ) 2.2 2.4 MJ/kg -
AMEn broiler (MJ) 2 2.2 MJ/kg -
Horses
Parameter As fed On DM Unit Other Unit SD Range Count SD Range Count SD Range Count
OM digestibility horse - 49 %
Energy digestibility horse - 47.8 %
Horse Forage Unit 0.54 0.59 per kg -
Digestible crude protein horse 0 0 g/kg -
Rabbits
Parameter As fed On DM Unit Other Unit SD Range Count SD Range Count SD Range Count
DE rabbit (kcal) 790 860 kcal/kg - 1
ME rabbit (kcal) 760 830 kcal/kg -
DE rabbit (MJ) 3.3 3.6 MJ/kg - 1
ME rabbit (MJ) 3.2 3.5 MJ/kg -
Energy digestibility rabbit - 21.4 %
N digestibility rabbit - 54.7 %
Amino acids
Parameter As fed On DM Unit Other Unit SD Range Count SD Range Count SD Range Count
Lysine 0.8 0.8 g/kg 2.2 g/16g N
Threonine 1 1.1 g/kg 3 g/16g N
Methionine 1.1 1.1 g/kg 3 g/16g N
Cystine 0.6 0.7 g/kg 1.8 g/16g N
Methionine + cystine 1.7 1.8 g/kg 4.8 g/16g N
Tryptophan 2 2.2 g/kg 5.7 g/16g N
Isoleucine 1.9 2.1 g/kg 5.6 g/16g N
Valine 2.4 2.7 g/kg 7 g/16g N
Leucine 3.4 3.7 g/kg 9.7 g/16g N
Phenylalanine 2.1 2.3 g/kg 6.1 g/16g N
Tyrosine 2.1 2.3 g/kg 6 g/16g N
Phenylalanine + tyrosine 4.2 4.6 g/kg 12.1 g/16g N
Histidine 0.4 0.4 g/kg 1 g/16g N
Arginine 1.9 2.1 g/kg 5.4 g/16g N
Alanine 1.6 1.7 g/kg 4.6 g/16g N
Aspartic acid 3.3 3.6 g/kg 9.5 g/16g N
Glutamic acid 8.1 8.8 g/kg 23.1 g/16g N
Glycine 1.1 1.1 g/kg 3 g/16g N
Serine 1.7 1.8 g/kg 4.8 g/16g N
Proline 2 2.2 g/kg 5.7 g/16g N
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