The utilization of exogenous enzymes is a prevalent
nutritional strategy in the poultry industry. However, their effectiveness when
used in diets formulated with non-traditional agro-byproducts like cassava peel
remains uncertain. From a practical standpoint, assessing the efficacy of these
enzymes in such contexts is vital to achieving competitive performance outcomes
while maintaining low production costs. This study assessed the supplemental
value of exo-enzyme (Maxigrain®) in the utilization of cassava peel meal (CPM)
by broiler finisher chickens in a 28-day feeding trial. Two hundred and forty,
4 weeks old Arbor acre broiler birds were randomly allocated to four
experimental diets tagged as T1, T2, T3 and T4, which were formulated to
replace maize at 0, 25, 50, and 75% inclusion levels respectively with
supplementary enzyme (Maxigrain®). The birds were further subdivided into four
replicates of ten birds each in a completely randomized design arrangement. At
the end of the 4 weeks feeding trial, performance and carcass attribute indices
were measured, while feces and blood samples were collected for nutrient
digestibility and blood biochemical evaluations, respectively. Data on feed
cost analysis were calculated using the prevailing current market price of feed
ingredients. The result showed that average weight gain and feed intake were
significantly affected (P<0.05) by dietary treatments. Birds on a 50% CPM
enzyme diet had a significant (P<0.05) higher weight gain and feed intake
followed by those on a 75% CPM diet as compared to the control group. Feed
cost/kg weight gain significantly (P<0.05) decreased with increasing levels
of enzyme-supplemented CPM. Profit margins generated were higher (P<0.05) in
bird fed enzyme-treated CPM diet group. The apparent nutrient digestibility of
the birds revealed a significant (P<0.05) variation in all parameters
evaluated and increased with increasing levels of enzyme-supplemented CPM
diets. Also, all blood metabolites
evaluated were significantly affected (p<0.05) by enzyme supplementation to
CPM-based diseases except for WBC, globulin, creatinine and cholesterol. Enzyme
supplementation produced no significant (p>0.05) effect on live weight,
carcass weight and dress weight across the treatments, however, birds at 50% dietary
level had the highest mean values compared to other treatment groups. The cut
weights of the wing, breast, thigh, back, liver, GIT and kidney were
significantly (P<0.05) affected by the dietary treatments. Therefore, enzyme
supplementation improved performance, nutrient digestibility, and carcass
characteristics of broiler finishers fed cassava peel meal-based diet without
any adverse effect and 50% inclusion gave an optimum performance on carcass and
organ traits.
Author (s) Details
Aguihe P.C
Department of Animal Production and Health Technology,
Federal College of Wildlife Management, New Bussa, Niger State, Nigeria.
Ntagbu F.G.
Department of Animal Production and Health Technology, Federal College of
Wildlife Management, New Bussa, Niger State, Nigeria.
Ilaboya I.I
Department of Animal Science, Benson Idahosa University, Benin, Edo State,
Nigeria.
Ogialekhe P.
Department of Wildlife Management, Federal College of Wildlife Management,
New Bussa, Niger State, Nigeria.
Wealth A. S
Forestry Research Institute of Nigeria, Jericho Hill, Ibadan, Oyo State,
Nigeria.
Ehielu R. O
Department of Animal Science, Benson Idahosa University, Benin, Edo State,
Nigeria.
Okuna R
Department of Animal Science, Benson Idahosa University,
Benin, Edo State, Nigeria.
Kehinde A.S
Forestry Research Institute of Nigeria, Jericho Hill, Ibadan, Oyo State,
Nigeria.
Please see the book here:- https://doi.org/10.9734/bpi/crpbs/v3/1746
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