Dra ft standard for discussion -TBS AFDC 9 (273) CD3 
 
                                                                   
                                                                               
 
 
 
 
 
DRAFT  TANZANIA STANDAR D 
 
Rice polish  as animal  feed – Specification  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
TANZANIA BUREAU OF STANDARDS  
 
Dra ft standard for discussion -TBS AFDC 9 (273) CD3 
 
 Rice  polish  as animal feed  – Specification   
 
0 FOREWORD  
 
Rice polish, also known as “rice polishing ” is commonly  used in formulation  of 
animal  feeds at both industrial and farm levels. This Tanzania standard lays 
down  specifications to guide production and trading of safe and quality rice polish 
for use in the manufacture of animal feed .  
 
In the preparation of this Tanzania  Standard substantial assistance was drawn 
from Indian  standard , IS 3163 – 1963 Rice  polish  as livestock  feed. 
 
In reporting the results of a test or analysis made in accordance with this 
Tanzania  Standard, if the fina l value observed or calculated is to be rounded off, 
it shall be  done in accordance with TZS 4 (see clause 2).  
 
1.0 SCOPE  
 
This Tanzania  Standard prescribes the requirements, methods of sampling  and 
test for  rice polish  as animal feed.     
 
2.0 NORMATIVE REFERENCES  
 
The following referenced standards are indispensable for the application of this 
draft standard. For dated references, only the e dition cited applies. For undated 
references, the latest edition of the referenced standard  (including any 
amendment s) applies.  
  
TZS 4  – Rounding off numerical values . 
TZS 109 – Food Processing units – code of hygiene – General . 
TZS 122 -1 – Microbiology o f food and animal feeding stuffs – Horizontal method 
for the detection of Salmonella spp . 
TZS 538  – Labelling of pre -packaged foods — General requirements  
TZS 730 -1– Microbiology of food and animal feeding stuffs – Horizontal method 
for the detection of Escherichia coli   
TZS 799 – Food stuffs – Determination of aflatoxin B1 and the total cont ent  
TZS 821  – Animal feeding stuffs – Preparation of test samples  
TZS 2044  – Animal  feeding  stuffs – Determina tion of ash insoluble in 
hydrochloric acid  
TZS 2472 – Animal feeding stuffs – Determination of acid detergent fibre (ADF) 
and acid detergent li gnin (ADL) Contents  
TZS 2473  – Animal feeding stuffs - Determination of crude ash  
TZS 2476  – Animal feeding stuffs -Dete rmination of fat content  
TZS 2478  – Animal feedi ng stuffs – Determination of moisture and other volatile 
matter content  
TZS 2480  – Anima l feeding  stuffs - Determination of nitrogen content and 
calculation of crude protein content - Part 1: Kjeldahl method  
TZS 2488  – Animal feeding stuffs – Sampling  
 
 
 Dra ft standard for discussion -TBS AFDC 9 (273) CD3 
 
 3.0 TERMS AND DEFINITIONS  
For the purpose of this Tanzania standard, the following terms and definitions 
shall appl y: 
 
3.1 rice polish   
is the finely powdered material obtained in polishing the rice kernels, 
after the hulls and bran ha ve been removed.  
  
4.0 REQUIREMENTS  
4.1 General requirements  
4.1.1 Rice polish  shall be free from adulterants, musty,  stale odour,  sour or 
rancid taste, from lumps, dirt and extraneous matter including iron or other 
metallic pieces. The material shall be free from fungus or insec t infestation .  
4.1.2 Shall  be free flowing without clumps  and discolouration.  
 
4.3 Specific requirements  
4.3.1 Rice polish  for animal feeding  shall also conform to the requirements 
prescribed  in Table 1.  
 
Table 1: Requirements for rice polish for  animal f eed 
S/No  Parameters  Requirements  
 Methods of test (See 
clause 2)  
1 Moisture, %, m/m, max  10 TZS 2478  
2 Crude protein (6.25 X N), 
%, m/m, Min  11 TZS 2480  
3 Crude fat, %, m/m, min  15 TZS 2476 
4 Crude fibre, %, m/m, max  4.0 TZS 2472  
5 Total ash, %, m /m, max  10 TZS 2473  
6 Acid insoluble ash, %, 
m/m,  max 1.5 TZS 2044 
NOTE  – All values obtained are calculated from samples on dry basis except for 
those dealing with moisture  
 
5 HYGIENE  
5.1 Rice polish  shall be prepared under strict hygienic conditions ac cording to 
TZS 109 (see clause 2).  
5.2 Rice polish  shall compl y with microbiological limits as shown in Table 2;  
 
Table 2: Status for microbiological tolerance in animal feeds  
S/No.  Microor ganism  
 Status  Test methods 
(see clause 2 ) 
1. Salmonella spp /25g 
   Absent  TZS 122 -1 
2. Escherichia coli , cfu/g  
   Absent  TZS 730-1 
 
 
 
 Dra ft standard for discussion -TBS AFDC 9 (273) CD3 
 
 6.0 CONTAMINANTS  
6.1 Pesticide residues  
Rice polish  shall comply with pesticide residue s limits  as prescribed in the Codex 
Alimentarius Commission .  
 
6.2 Aflatoxins  
Total a flatoxins content maximum limit in Rice polish  shall be 10 p pb when test ed 
in accordance with TZS 799.  
 
7.0 SAMPLING  AND TESTS  
7.1 Sampling  
Sampling of rice polish  for animal feeding  shall be done according to  TZS 821  and 
TZS 2488  (see clause 2).   
 
7.2 Tests  
Testing  of rice polish  for animal feeding  shall be done according to test methods 
prescribed in Table s 1 and 2 . 
8.0 PACK ING, MARKING  AND LABELLING   
 
8.1 Pac king 
Rice polish shall be packed in clean and sound containers capable of protecting 
the product from moisture ingress, contam ination and spillage during normal 
handling and transportation. The containers shall be sealed/stitched in a manner 
that the pro duct will be effectively protected . 
 
8.2 Marking  and labelling   
8.2.1 Rice polish  containers shall be marked and labelled  in acc ordan ce with 
TZS 538 (see clause 2).  In addition,  each c ontainer  shall be legibly and indelibly 
marked with the following inform ation:  
 
a) Name of the product ; 
b) Name and address of the manufacturer;   
c) Batch or code number;  
d) Date of production;  
e) Net weight in metr ic unit; 
f) Expiry date ; 
g) Country of origin ; 
h) Storage  instructions ; 
i) Guaranteed composition  
 
8.3 The container may also be marked with  TBS Certification Mark.  
 
NOTE  – The TBS Standards Mark of Quality may be used by the 
manufacturers only under license from TBS.  Particulars of 
conditions under which the licenses  are granted may be obtained 
from TBS.  
 
 Dra ft standard for discussion -TBS AFDC 9 (273) CD3