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Broken rice and polished rice

IMPORTANT INFORMATION: This datasheet is pending revision and updating; its contents are currently derived from FAO's Animal Feed Resources Information System (1991-2002) and from Bo Göhl's Tropical Feeds (1976-1982).

Datasheet

Description
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Common names 
  • Broken rice, chits, brewer's rice
  • Polished rice, milled rice
Synonyms 

Oryza glutinosa Lour., Oryza sativa var. affinis Körn., Oryza sativa var. erythroceros Körn., Oryza sativa var. flavoacies Kara-Murza ex Zhuk., Oryza sativa subsp. indica Kato., Oryza sativa cv. italica Alef., Oryza sativa subsp. japonica auct., Oryza sativa var. japonica auct., Oryza sativa var. melanacra Körn., Oryza sativa var. suberythroceros Kanevsk, Oryza sativa var. vulgaris Körn., Oryza sativa var. zeravschanica Brches ex Katzaroff, nom. nud. (USDA, 2013)

Description 

The broken rice separated out after the polishing stage has the same chemical composition as polished rice. There is seldom any surplus of broken rice available for feeding, as much of it is remixed with the whole grains and sold as low-grade rice. It is also sold to the brewing industry for mixing with barley. In some countries it is used for the production of arrak or as the raw material for rice flour. Polished rice is seldom used as animal feed because of its high price, but it can be fed in the same way as broken rice.

Distribution 

Rice originates from Asia where it is known to have been growing since 6500 BC. It was then brought to all tropical regions within centuries. Rice grows from 53°N in China to 35°S in Australia. The optimal growing conditions are: 20-30°C average day-temperature with night temperature over 15°C; fertile, heavy soils, 6.5-7 pH. Most varieties ("swamp rice", "lowland rice") must be planted in stagnant water and require 200 mm rainfall/month or equivalent amount from irrigation, whereas others ("mountain rice" or "upland rice") require less irrigation and 750 mm rainfall on a 3-4 months period and no dessication.

Nutritional aspects
Nutritional attributes 

Broken rice is a palatable, energy-rich and easily used feed. It is used for all classes of livestock, but its high energy value and low fibre content make it especially valuable in rations for growing chickens.

Horses and donkeys 

Broken white rice have been widely used for high energy horse feeds in Australia for many years. Reported DE values for broken rice range from 15.1 to 18.2 MJ/kg DM (Hutton, 1990).

Nutritional tables
Tables of chemical composition and nutritional value 

Avg: average or predicted value; SD: standard deviation; Min: minimum value; Max: maximum value; Nb: number of values (samples) used

IMPORTANT INFORMATION: This datasheet is pending revision and updating; its contents are currently derived from FAO's Animal Feed Resources Information System (1991-2002) and from Bo Göhl's Tropical Feeds (1976-1982).

Main analysis Unit Avg SD Min Max Nb
Dry matter % as fed 89.2 1.4 87.5 90.1 3
Crude protein % DM 10.4 1.7 7.8 13.2 32
Crude fibre % DM 0.4 0.4 0.1 1.8 19
NDF % DM 15.6 1
ADF % DM 1.4 1
Lignin % DM 0.8 1
Ether extract % DM 0.5 0.3 0.1 1.8 19
Ash % DM 0.6 0.2 0.4 1.4 19
Gross energy MJ/kg DM 18.0 *
 
Minerals Unit Avg SD Min Max Nb
Calcium g/kg DM 0.5 1
Phosphorus g/kg DM 3.2 3.1 3.2 2
Manganese mg/kg DM 8 1
Zinc mg/kg DM 12 1
 
Amino acids Unit Avg SD Min Max Nb
Alanine % protein 6.1 0.4 5.5 6.5 5
Arginine % protein 8.7 0.6 7.8 9.3 6
Aspartic acid % protein 10.3 0.9 8.8 10.9 5
Cystine % protein 1.3 0.4 1.1 2.1 6
Glutamic acid % protein 21.8 2.7 17.5 24.0 5
Glycine % protein 5.1 0.5 4.3 5.7 6
Histidine % protein 2.6 0.1 2.5 2.7 6
Isoleucine % protein 4.4 0.6 3.6 4.9 6
Leucine % protein 9.1 0.7 7.8 9.7 6
Lysine % protein 4.1 0.4 3.8 4.9 6
Methionine % protein 2.1 0.4 1.4 2.8 6
Phenylalanine % protein 5.9 0.2 5.8 6.2 6
Proline % protein 5.0 0.6 4.1 5.6 5
Serine % protein 5.3 0.7 4.0 5.8 5
Threonine % protein 3.9 0.3 3.7 4.5 6
Tryptophan % protein 0.9 1
Tyrosine % protein 3.5 0.4 2.9 4.1 6
Valine % protein 6.4 0.4 5.9 6.9 6
 
Ruminant nutritive values Unit Avg SD Min Max Nb
OM digestibility, Ruminant % 92.5 *
Energy digestibility, ruminants % 89.9 *
DE ruminants MJ/kg DM 16.2 *
ME ruminants MJ/kg DM 13.6 *
Nitrogen digestibility, ruminants % 86.6 1
 
Pig nutritive values Unit Avg SD Min Max Nb
Energy digestibility, growing pig % 89.5 *
DE growing pig MJ/kg DM 16.1 *

The asterisk * indicates that the average value was obtained by an equation.

References

Dewar, 1967; Friesecke, 1970; Juliano et al., 1964; Oyenuga, 1968; Ravindran et al., 1994; Robles et al., 1982; Sosulki et al., 1990; Woodman, 1945

Last updated on 24/10/2012 00:44:55

Main analysis Unit Avg SD Min Max Nb
Dry matter % as fed 87.4 1
Crude protein % DM 7.2 1
Crude fibre % DM 0.2 1
Ether extract % DM 0.3 1
Ash % DM 0.9 1
Gross energy MJ/kg DM 17.7 *
 
Minerals Unit Avg SD Min Max Nb
Calcium g/kg DM 1.3 1
Phosphorus g/kg DM 1.6 1
 
Ruminant nutritive values Unit Avg SD Min Max Nb
OM digestibility, Ruminant % 92.9 *
 
Pig nutritive values Unit Avg SD Min Max Nb
Energy digestibility, growing pig % 89.8 *
DE growing pig MJ/kg DM 15.9 *

The asterisk * indicates that the average value was obtained by an equation.

References

Lim Han Kuo, 1967

Last updated on 24/10/2012 00:44:55

References
Datasheet citation 

DATASHEET UNDER CONSTRUCTION. DO NOT QUOTE. http://www.feedipedia.org/node/748 Last updated on November 16, 2013, 0:40

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