AFDC 9 (655) CD3 
   
 
 
DRAFT TANZANIA STANDARD  
 
Calf m ilk replacer s – Specification  
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
TANZANIA BUREAU OF STANDARDS  
                                                      
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Calf m ilk replacer s – Specification                           
 
 
0   FOREWORD  
 
Calf milk replacer s contribute significantly to ca lf feeding in the country to supplement milk for 
the purpose of increasing milk profit . In this regard, i t is essential to  substitute cow milk with diet 
which will supply essential nutrients  for the calf growth .  
 
This Tanzania standard has been prep ared to ensure that calf milk replacer s manufactured or 
imported in the country are safe and meet the nutritional requirements of the calf. 
 
In the preparation of this Tanzania standard assi stance was drawn from TZS 397:2017 Cattle 
feed supplements  – Specification  published by  the Tanzania Bureau of Standards . 
 
In reporting, the results of a test or analysis made in accordance with this standard, if the final 
value observed or calculated, is t o be rounded off, it shall be done in accordance with TZS 4 
(see clause 2).  
 
 
1.0 SCOPE  
 
This Tanzania  standard specifies requirements, methods of sampling and test for  calf 
milk replacer s. 
2.0 NORMATIVE REFERENCES  
 
For the purpose of this finalized Tanzania standa rd, the following references shall 
apply. For dated references, only the edition cited applies. For undated references, 
the latest edition of the referenced document (including any amendments) applies  
 
TZS 4 – Round ing off numerical values  
TZS 76 – General  method for determination of Arsenic silver diethyldithiocarmate photometric 
method  
TZS 109 – Food processing units – code of hygiene – General  
TZS 122 -1– Microbiology of food and animal feeding  stuffs – Horizonta l method for the 
detection of Salmonella sp p 
TZS 268 – General atomic absorption spectrophotometric method for dete rmination of lead in 
food stuffs  
TZS 538 – Labelling of pre -packaged foods — General requirements  
TZS 730 -1 – Microbiology of food and anima l feeding stuffs – Horizontal method for the  
detection of Escherichia coli   
TZS 799 – Food stuffs – Determination of aflatoxin B1 and the total conte nt  
TZS 821 – Animal feeding stuffs – Preparation of test samples  
TZS 2472  – Animal feeding stuffs – Deter mination of acid detergent fibre (ADF) and a cid 
detergent lignin (ADL) Contents  
TZS 2476 – Animal fee ding stuffs -Determ ination of fat content  
TZS 2478 – Animal feeding stuffs – Determination of moisture and other volatile matter 
content   
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TZS 2480 – Anima l feeding stuffs - Determination of nitrogen content and calculation of 
crude protein content - Part 1: Kjeldahl method  
TZS 2487 - Animal feeding stuffs — Determination of the contents of Calcium, Copper, 
Iron, Magnesium, Manganese, Potassium, Sodium and Zi nc — Method using atomic 
absorption spectrome try 
TZS 2488 – Animal feeding stuffs – Sampling  
TZS 2489  – Animal  feeding stuffs – Determination of vitamin E content – Method  using high -
performance liquid chromatography  
 
3.0 TERMS AND DEFINITIONS  
For the purpose of this standard, the following te rms an d definitio ns shall apply:  
 
3.1 milk replacer (milk substitute meal)  
compound feed administered in dry or liquid f orm for  feeding young animals such as calves, 
lambs or kids as a complement to, or substitute for, post -colostrum  milk. 
 
3.2 antioxidan t 
subs tance added  to feeds to protect polyunsaturated fatty acids and fat-soluble  vitamins from 
destruction by peroxidati on. 
  
4.0 REQUIREMENTS  
4.1 General requirements  
4.1.1  Raw materials   
 The ingredients used in the manufacture of calf milk replacers include a  very high-
qualit y protein raw materials with a similar amino acid composition and low NPN content  
such as skimmed milk p owder ( SMP) and whey powder concentrate (WPC) . 
 
4.1.2  Calf milk replacers  shall;  
 have cream to light tan colour.  
 be free of lumps and foreign  mater ials. 
 have a blend to be pleasant with no “off” odours noted.  
 be milky with no “off” flavours.  
 have antioxidant  added to reduce oxidation of the fat.  
 have no added antibiotics or hormones  
 
4.1 Specific  requirements  
Calf milk replacer s shall comply  with the requiremen ts spec ified in Table 1 . 
 
Table 1 : Nutrients requirements  in dry matter basis  
S/No. Parameter  Calf milk replace rs Method of test  
1) Moisture, % Max  12.0 TZS 2478  
2) Crude protein, % Min.  20.0 TZS 2480  
3) Crude fat, % Min. 15.0 TZS 2476  
4) Crude fibre, % Max.  0.3  TZS 2472   
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 S/No. Parameter  Calf milk replace rs Method of test  
5) Calcium, % Min.  0.6 TZS 2487  
6) Phosphorus, % Min.  0.5 ICP/AAS  
7) Vitamin A,  I.U/kg, min  3 800  ISO 14565  
8) Vitamin D, I.U /kg, min  600 AOAC  
9) Vitamin E, I.U /kg, min  300 TZS 2489  
 
5.0 CONTAMINANTS  
 
5.1 Calf milk replace rs shall comply with the maximum limits for heavy metals specified in Table 
2. 
 
Table 2: Heavy metals  contamin ants 
S/No Heavy metal  Limits  (mg/kg, max)  Test Method  
(see clause 2)  
1) Mercury (Hg)  0.5 ICP/AAS  
2) Lead (Pb)  1.0 TZS 268  
3) Arsenic (As)  2.0 TZS 76  
4) Cadmium (Cd)  5.0  ICP/AAS   
 
5.2 Aflatoxins  
Total aflatoxi ns content maximum limit in calf milk replacers shall be 10 ppb when tested in 
accordance with TZS 799 . 
 
6.0 HYGIENE  
6.1 Calf mi lk replacer s shall be prepared under strict hygienic condi tions according to TZS 109 
(see clause 2).   
6.2 Calf  milk replacer s shall comply with microbiol ogical limits as shown in Table 3;  
 
Table 3: Status for microbiological tolerance in calf milk replace rs 
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 
 
 
 
  
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 7.0 SAMPLING AND TESTS  
 
7.1 Sampling  
Sampling of Calf milk replacer shall be done according to TZS 2488  and test samples shall be 
prepared in accordance with  TZS 821 (see clause 2).  
 
7.2 Tests  
Testing of this product shall be done acco rding to te st methods pre scribed in Table 1 ,2 and 3 
(see clause 2).  
 
8.0 PACK ING, MARKING  AND LABELLING  
 
8.1 Pack ing  
Calf milk replacer for sale shall be packed in containers which are of sufficient strength and 
sufficiently sealed so as t o withstand handling  without tearing, bursting or falling open during 
normal handling and transportation. The container s hall be  clean  and free from visible 
indications of contamination, infection and i nsect infestation  and not previously used.  
 
 
8.2 Marking and l abelling  
Calf milk replacers  containers shall be marked and labelled in accordance with TZS 538 (see 
claus e 2). In addition, each c ontainer shall be legibly and indelibly marked with the following 
information:  
(i) Name of product ;  
(ii) Catego ry of animals for which it is intended;  
(iii) Name and physical address of the manufacturer;  
(iv) Net Weight content  in metric unit ;  
(v) Batch or code number;  
(vi) Date o f manufacture ;  
(vii) Expiry date; 
(viii) Instructions for use and storage;  
(ix) declared proportions of Crude pro tein, Crude fat and Crude fibre.  
 
8.3 The container may also be marked with TBS Certification Mark.  
NOTE  – The TBS Standards Mark of Q uality may be used by the  manufacturers only under 
licence from TBS. Particulars of conditio ns under which the licences a re gran ted may be 
obtained from TBS.