| dc.description.abstract | The occurrence of Salmonella is a global
challenge in the public health and food
production sectors. Our study investigated the
prevalence, serovar and antimicrobial
susceptibility of strains of Salmonella serovars
isolated from animal feed (meat‐and‐bone and
blood meal) samples from two commercial
abattoirs in Namibia. A total of 650 samples
(n = 650) were examined for the presence of
Salmonella. Results showed that 10.9% (n = 71)
were positive for Salmonella. Of the Salmonella
serovars isolated, S. Chester was the most
commonly isolated serovar (19.7%), followed
by S. Schwarzengrund at 12.7%. From the
Salmonella isolates, 19.7% (n = 14) were resistant
to one or more of the antimicrobials (nalidixic
acid, trimethoprim‐sulfamethoxazole, sulfisoxazole,
streptomycin and/or tetracycline),
whereas 80.3% (n = 57) were susceptible to all
16 antimicrobials tested. Resistance to
sulfisoxazole and the trimethroprimsuflamethoxazole
combination were the most
common. The resistant isolates belonged to ten
different Salmonella serovars. The susceptibility
of most of the Salmonella isolated to the
antimicrobials tested indicates that antimicrobial
resistance is not as common and
extensive in Namibia as has been reported in
many other countries. It also appears that there
is a range of antimicrobials available that are
effective in managing Salmonella infections in
Namibia. However, there is some evidenceThe occurrence of Salmonella is a global
challenge in the public health and food
production sectors. Our study investigated the
prevalence, serovar and antimicrobial
susceptibility of strains of Salmonella serovars
isolated from animal feed (meat‐and‐bone and
blood meal) samples from two commercial
abattoirs in Namibia. A total of 650 samples
(n = 650) were examined for the presence of
Salmonella. Results showed that 10.9% (n = 71)
were positive for Salmonella. Of the Salmonella
serovars isolated, S. Chester was the most
commonly isolated serovar (19.7%), followed
by S. Schwarzengrund at 12.7%. From the
Salmonella isolates, 19.7% (n = 14) were resistant
to one or more of the antimicrobials (nalidixic
acid, trimethoprim‐sulfamethoxazole, sulfisoxazole,
streptomycin and/or tetracycline),
whereas 80.3% (n = 57) were susceptible to all
16 antimicrobials tested. Resistance to
sulfisoxazole and the trimethroprimsuflamethoxazole
combination were the most
common. The resistant isolates belonged to ten
different Salmonella serovars. The susceptibility
of most of the Salmonella isolated to the
antimicrobials tested indicates that antimicrobial
resistance is not as common and
extensive in Namibia as has been reported in
many other countries. It also appears that there
is a range of antimicrobials available that are
effective in managing Salmonella infections in
Namibia. However, there is some evidence that resistance is developing and this will need
further monitoring to ensure it does not
become a problem | en |
