ABSTRACT
Fish
feeds are constantly in contact with environmental organisms and become readily
colonized
by
various mibrobial species. This study evaluated the microbiological quality of
commercial
fish
feeds solei within Umuahia metropolis. Two (2) different feed Samples (Eco and
Table
feeds)
were cdllected for this work using sterile plastic containers. The samples were
labelled
and
taken to the laboratory for microbiological analysis. From this study a total
of six (6)
bacteria
strains and six (6) fungal species were obtained and identified using
morphological
characteristics,
pigmentation on media, microscopy, biochemical and sugar fermentation
methods.
This revealed the major bacterial isolates to belong to Escherichia coli,
Lactobacillus
spp.
Staphylococcus aureus, Pseudomonas aeruginosa, Streptococcus spp and Bacillus
sp
respectively,
whereas the fungal isolates belongs to Rhizopus sp, Aspergillus spp,
Penicillium
spp.
Mucor spp. Candida spp and Fusarium spp. From the findings in this study, it
was observed
that
Staphylococcus aureus had the highest occurrence of 100% while Escherichia coli
and
Streptococcus
spp had the least occurrence of 25% each. Bacillus spp (75%) and Lactobacillus
spp
(65%). both recorded high prevalence while Pseudomonas spp (45%) showed a
moderate
occurrence.
The percentage occurrence of the fungal isolates indicated yeast and
Aspergillus spp
were
the predominant isolates with occurrences of 90% and 85% respectively. The
prevalence of
Mucor
spp was very low with mean total occurrence of 5% while that of Fusarium spp
was 25%.
The
mean percentage occurrence of Rhizopus spp was 35% while Penicillium spp
recorded an
average
of 45% occurrence. From the obtained results, it was concluded that the
microbiological
quality
of the fish feeds is poor as the feeds harbored many different bacterial and
fungal species
at
varying levels of occurrences. The high levels of occurrences of diverse
species of bacteria
and
fungi in the fish feeds was considered to confer potentials of possible
infections arising from
consumption
ojf the feeds as well as intoxications which may be passed on to human
consumers
along
the food chain. It was therefore recommended, based on the findings in this
work, that
there
is need for improvement on the quality of fish feed used in Umuahia.
KALU, K (2025). Microorganisms Associated With Fish Feeds Sold In Umuahia, Nigeria:- Kalu, Ugochi L. Mouau.afribary.org: Retrieved Apr 03, 2025, from https://repository.mouau.edu.ng/work/view/microorganisms-associated-with-fish-feeds-sold-in-umuahia-nigeria-kalu-ugochi-l-7-2
KALU, KALU. "Microorganisms Associated With Fish Feeds Sold In Umuahia, Nigeria:- Kalu, Ugochi L" Mouau.afribary.org. Mouau.afribary.org, 24 Feb. 2025, https://repository.mouau.edu.ng/work/view/microorganisms-associated-with-fish-feeds-sold-in-umuahia-nigeria-kalu-ugochi-l-7-2. Accessed 03 Apr. 2025.
KALU, KALU. "Microorganisms Associated With Fish Feeds Sold In Umuahia, Nigeria:- Kalu, Ugochi L". Mouau.afribary.org, Mouau.afribary.org, 24 Feb. 2025. Web. 03 Apr. 2025. < https://repository.mouau.edu.ng/work/view/microorganisms-associated-with-fish-feeds-sold-in-umuahia-nigeria-kalu-ugochi-l-7-2 >.
KALU, KALU. "Microorganisms Associated With Fish Feeds Sold In Umuahia, Nigeria:- Kalu, Ugochi L" Mouau.afribary.org (2025). Accessed 03 Apr. 2025. https://repository.mouau.edu.ng/work/view/microorganisms-associated-with-fish-feeds-sold-in-umuahia-nigeria-kalu-ugochi-l-7-2