SALMONELLA PROTOCOLS

 

FEED MILL

1

Ensure all raw materials are routinely tested and batches of finished food are tested according to the Salmonella Animal Feed Regulations.

2

Ensure that where a positive Salmonella isolate has been identified in a 

food sample, that a systematic back tracing is carried out.

3

Ensure that lorries delivering feed are well maintained and the internal

structure ensures that lorries can be cleaned out between each delivery.

 

ON THE UNIT

Feed Storage Bins                                      

4

Are feed storage bins secure from birds and vermin?

5

Do birds or vermin land on feed barrows used to deliver the feed into the pens/troughs?

6

Are food hoppers kept covered to reduce the risk of contamination from

other sources (e.g.) birds or vermin?

7

Ascertain the level the birds and vermin on the unit.

8

Date the suspect feed was delivered?  Was the feed delivered to an

empty bin?

 

UNIT SECURITY    

9

Are there proper entry procedures and separate boots and overalls for all

staff and visitors?

10

Are there foot dips on entry into the unit?  Is the foot disinfectant fresh?

11

Are there other livestock production systems, such as calves or chickens

which may be a potent source of Salmonella within the unit vicinity?

12

Are there proper hand washing and toilet facilities for staff in accordance with Health and Safety and Employment Regulations?

13

If bedding is used such as straw, is this free from contamination with

rodents?

14

Does the manure handling system, particularly scrape through systems, encourage the spread of disease from pen to pen?

15

How clean are the water supplies/storage facilities?

 

Unit Health Status                           

16

Are there any diseases that may make the animals more susceptible to Salmonella such as, PMWS, Porcine Reproductive and Respiratory Syndrome (PRRSv), Actinobacillus pleuropneumoniae, high levels of respiratory disease complex or colitis.

17

Are all animals housed in the same air space?

18

Do they share common faeces disposal systems?

 


RISKS OF ENVIRONMENTAL CONTAMINATION WITH SALMONELLA

 

SAMPLING PROCEDURES

1

Have samples been collected from the feed bin where the suspect feed

has been found?  Was the sample collected from the top and the bottom

of the feed sample?

2

Were the sampling procedures adequate to ensure no contamination has

occurred from within the environment?

3

Ensure samples have been taken with an independent arbitrator present

and properly identified with a number and signed.

4

Check that feed samples are placed in sterile bags in a manner that would preclude any risk of contamination from hands or other formites.

ANIMALS AFFECTED

1

What proportion of pigs fed the allegedly contaminated feed showed signs of Salmonella or other diseases.

 - Number

- Weight

- Symptoms

- Number died

- Number recovered

- Number of runts

2

What proportion of pigs were already showing signs of other scour such

as swine dysentery or colitis? How many pigs were identified initially

scouring?

3

How many pigs were identified initially scouring?

4

Detailed inventory of events.

5

What was the type, colour and consistency of the scour?

6

Veterinary reports.

7

Medicines used and response.

 

LABORATORY EVIDENCE

1

Copies of bacteriological and post-mortem investigations by the units veterinary surgeon are required.

2

Copies of all laboratory reports are required.