Inclusion of mineral fortified mushroom (Pleurotus ostreatus) in the broiler feed reduced the pathogenic microbial loads in the broiler fecal droppings
Authors
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Abimbola Fadugba
Department of Biological Sciences, Afe Babalola University, Nigeria
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V.O. Oyetayo
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I.O. Osho
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O.O. Olaniyi
Keywords:
Pleurotus ostreatus, Mushroom, Broilers, Iron fortified, Selenium fortified, FecalAbstract
This experiment was conducted to study the potential effects of non-fortified, iron fortified and selenium
fortified P. ostreatus on microbial load and types associated with fecal droppings of broilers fed with
mushroom formulated feed. This experiment was performed for 42 days on broilers (Gallua gallus
domestica). Dietary treatments included standard basal diet as control, non-fortified mushroom feed
group (NFM), Iron fortified mushroom feed group (FeFM) and Selenium fortified mushroom feed group
(SeFM) at 1.5%, 5% and 10% inclusion levels. Significant differences (p>0.05) were observed in
fecal total bacterial count (Cfu/g × 106) and fungal loads of all broilers fed the treated mushroom
feeds except 1.5% NFM bacterial count. A total of eleven bacterial and fungal isolates were isolated
from the fecal droppings including Micrococuss luteus, Proteus vulgaris, Bacillus subtilis,
Staphylococcus epidermidis and Staphylococcus aureus. The fungal isolates, obtained from the fecal
droppings were Aspergillus spp, Fusarium spp, Rhizopus spp and Candida spp. Staphylococcus aureus
and Staphylococcus epidermidis were absent in fecal droppings of broilers fed with NFM and SeFM
across treatments. Micrococuss luteus was also absent in the feces of broilers fed with FeFM across
treatments. Rhizopus stolonifer was found absent in the fecal sample of broilers fed with 1.5% and
5% NFM, FeFM and SeFM. Candida tropicalis was also absent in fecal droppings of broilers fed
with NFM (10%), FeFM (1.5% and 5%), and SeFM (1.5%, 5% and 10%). Feeding broilers with
mushroom fortified feed at all inclusion levels had positive impacts on microbial loads and types of
broilers fecal droppings. Fortification of broiler feed with mineral fortified and non fortified mushroom
could reduce the level of pathogenic microorganisms present in poultry feces and this could minimize
the shedding of pathogenic microorganisms into the environment.
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