Dra ft standard for discussion -TBS                                                                                                   AFDC 9 (569)  CD3  
 
                                                                   
                                                                               
 
 
 
 
 
DRAFT  TANZANIA STANDAR D 
 
Rice bran as animal  feed – Specification  
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
TANZANIA BUREAU OF STANDARDS  
 
Dra ft standard for discussion -TBS                                                                                                   AFDC 9 (569)  CD3  
 
 Rice  bran as animal feed  – Specification   
 
0 FOREWORD  
Rice bran  is widely 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 bran for use in the manufacture of animal feed .  
 
In the preparation of this Tanzania  Standar d substantial assistance was drawn 
from Indian  standard , IS 3648  – 1973 Rice  bran as livestock  feed. 
 
In reporting the results of a  test or analysis made in accordance with this 
Tanzania  Standard, if the final 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, method s of sampling  and 
test for  rice bran as animal feed.     
 
2.0 NORMATIVE REFERENCES  
 
The follow ing referenced standards are indispensable for the application of this 
draft standard. For dated references, only the edition cited applies. For undated 
references, the latest edition of the referenced standard  (including any 
amendments) applies.  
  
TZS 4  – Rounding off numerical values . 
TZS 122 -1– Microbiology of food and animal feeding stuffs – Horizontal method 
for the detection of Salmonella spp . 
TZS 538  – Labellin g 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 conten t  
TZS 821  – Anim al feeding stuffs – Preparation of test samples  
TZS 2044  – Animal feeding  stuffs – Determi nation of ash insoluble in 
hydrochloric acid  
TZS 2472 – Animal feeding stuffs – Determination of acid detergent fibre (ADF) and acid 
detergent lignin (ADL) Contents  
TZS 2473  – Animal feeding stuffs - Determination of crude ash  
TZS 2476  – Animal feed ing st uffs -Determination of fat content  
TZS 2478  – Animal feeding stuffs – Determination of moisture and other volatile 
matte r content  
TZS 2480  – Animal feeding stuffs - Determination of nitrogen content and 
calculation of crude protein content - Part 1: Kjelda hl method  
TZS 2488  – Animal feeding stuffs – Sampling  
 
3.0 TERMS AND DEFINITIONS  
For the purpose of this Tanzania standard, the following terms an d definitions 
shall ap ply: 
 Dra ft standard for discussion -TBS                                                                                                   AFDC 9 (569)  CD3  
 
 3.1 rice bran  
is the pericarp or bran layer and germ of rice, with only such quantity  of 
hull fragments , and chipped or broken rice as is unavoidable in the 
regular milling of edible rice.  
  
4.0 REQUIREMENTS  
4.1 General requir ements  
4.1.1 Rice bran shall be free from harmful constituents, metallic objects, 
adulterants, fungal and microbial  contamination, stale  odour, sour or rancid taste, 
insects and rodent infestation, and other extraneous matter .  
4.1.2 Shall be free flowing without clumps  and discolouration.  
 
4.2 Specific requirements  
4.2.1 Rice bran for animal feeding  shall also conform to t he requirements 
detailed in Table 1.  
 
Table 1: Requirements for rice bran for animal feed  
S/No  Paramete rs  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  12  TZS 2476  
4 Crude fibre, %, m/m, max  12  TZS 2472  
5 Acid inso luble ash, %, m/m, 
max 8 TZS 2044  
NOTE  – All values obtained are calculated  from samples on dry basis except for 
those dealing w ith moisture  
 
5 HYGIENE  
5.1 Rice bran  shall be prepared under strict hygienic conditions according to TZS 
109 (see clause 2).  
5.2 Rice bran shall comply with microbiological limits as shown in Table 2;  
 
Table 2: Status for microbiological to lerance in an imal feeds  
S/No.  Microorganism  
 Status  Test methods 
(see clause 2 ) 
1. Salmonella spp  25/g 
   Absent  TZS 122 -1 
2. Escherichia coli cfu/g 
   Absent  TZS 730 -1 
 
 
6.0 CONTAMINANTS  
6.1 Pesticide residues  
Rice bran shall  comply with pesticide resi dues limits  as prescribed in the Codex 
Alimentarius Commission .  
 Dra ft standard for discussion -TBS                                                                                                   AFDC 9 (569)  CD3  
 
 6.2 Aflatoxins  
Total a flatoxins content maximum limit in rice bran shall b e 10 ppb  when tested in 
accordance with TZS 799 . 
 
 
7.0 SAMPLING  AND TESTS  
7.1 Sampling  
Sampling of Rice bran for animal feeding  shall be done according to TZS 821 and 
TZS 2488  (see clause 2).  
 
7.2 Tests  
Testing of Rice bran 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 Pack ing 
Rice bran for animal  feeding shall be packed in clean and sound containers 
capable of protecting th e product from moisture ingress, contamination and 
spillage during normal handling and transportation. The container s shall be 
sealed/stitched in a manner that the product will be effectively protected.  
 
8.2 Marking  and labelling  
Rice bran containers shal l be marked and labelled  in accordan ce with TZS 538 
(see clause 2).  In addition,  each c ontainer  shall be legibly and  indelibly ma rked 
with the following information:  
 
a) Name of the product ;  
b) Name and address of the manufacturer;   
c) Batch or code number;  
d) Date o f production;  
e) Net weight in metric unit; 
f) Expiry date ; 
g) Country of origin ; 
h) Storage  instructions ; 
i) Guaranteed analysis . 
 
8.3 The cont ainer may also be marked with TBS Certification Mark.  
 
NOTE  – The TBS Standards Mark of Quality may be used by the 
manufacturer s only under license  from TBS. Particulars of 
conditions under which the licenses  are granted may be obtained 
from T BS.