🚧 Sensitivity Delvotest® T for goat & sheep milk // ampoules

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  4. 🚧 Sensitivity Delvotest® T for goat & sheep milk // ampoules

Detection limits for Delvotest® T ampoules in goat & sheep milk 

The table presented in this document is an indicative list of the sensitivity of the Delvotest® T for ovine/caprine milk samples at control time for the most used antibiotics in the world. This list is not exhaustive. The test is sensitive to many more antibiotic drugs and sulfonamides.  Values presented in this list are ppb (parts per billion) equaling μg/Kg or ng/gram.

The best sensitivity is reached when using control time (CT). To test at control time, additionally to the milk you would like to test, perform one additional test with negative control milk, when the test containing the negative control milk turns yellow read the test result of the other milk. The sensitivity of the test when using a fixed reading incubation time can be decreased. The required incubation time (CT) for sheep and goat milk takes approximately 10-30 minutes longer than cow milk.

 

 

Maximum Residue Limits (MRL) 
 for Caprine & Ovine milk (ppb) 

Delvotest® T ampoules CCß** ppb

Antibiotic class

Antibiotic

EU  

USA S/TL

CODEX 

India FSSAI  

 Goat milk 

 Sheep milk 

Penicillins

Amoxicillin

4

*

4 (s)

*

2

2

 

Ampicillin

4

*

*

10

2

2

 

Cloxacillin

30

*

*

10

8

10

 

Nafcillin

30

*

*

*

3

3

 

Oxacillin

30

*

*

*

2

2

 

Penicillin G

4

5

*

*

1

1

Tetracyclines

Chlortetracycline 

100

300 ***

100 (s) ***

100 (s) ***

125

175

 

Oxytetracycline

100

150

200

 

Tetracycline

100

150

200

Sulfonamides

Sulfadiazine

100

10

*

10

30

35

 

Sulfadimethoxine

100

10

*

*

18

30

 

Sulfadoxine

100

*

*

*

70

70

 

Sulfamethazine

100

10

*

*

40

75

 

Sulfathiazole

100

10

*

10

35

35

Cephalosporins

Cefalexin

*

*

*

*

30

30

 

Cefalonium 

*

*

*

*

5

5

 

Cefazolin 

50

*

*

*

3

3

 

Cefoperazone

*

*

*

*

14

14

 

Cefquinome

*

*

*

10

35

60

 

Ceftiofur

100

100 (g)

*

*

12

14

 

Cephapirin

*

*

*

10

3

3

Macrolides

Erythromycin-A

40

50

*

*

200

350

 

Spiramycin

*

*

*

*

2500

3500

 

Tylosin A

50

50

*

*

70

70

Aminoglycosides

DH-Streptomycin

200

125

200(s)

200(s)

700

1500

 

Gentamycin 

*

30

*

*

125

150

 

Neomycin 

1500

150

*

*

150

300

Others

Riflaximin 

*

*

*

*

50

70


* not listed for sheep or goat milk 

** CCꞵ detection capability is the lowest concentration where a substance can be detected with 95% probability.

*** Sum or individual

(s) listed only for ovine/sheep milk 

(g) listed only for caprine/goat milk 

 

Delvotest® T sensitivity for ovine/caprine milk listed as CCβ as determined (according to European legislation) by internal validation study in 2022.

 

Legislation regulation references

EU-MRL            EC 37/2010

USA S/TL          FDA CFR-Title 21, Vol 6, 21CFR556.68

CODEX              CX/MRL 2-2021

FSSAI               Compedium_Contaminants_Regulation_20_08_2020