Effect of Dietary Inclusion of Mulberry Morus alba Leaf Meal Supplemented with Multienzyme on Performance of Broiler Chicken
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Date
2018
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MAFSU, Nagpur
Abstract
The experiment was conducted to investigate the effect of dietary inclusion of
mulberry (Morus alba) leaf meal with or without multienzyme on growth performance,
nutrient metabolizibility, carcass traits, haematobiochemical parameter and
economics of broiler production. The 288 broiler chicks were equally assigned to six
groups, having four replications with 12 birds per replication. The dietary treatments
containing T0 (negative control), T1 (5% MLM), T2 (10% MLM), T3 (positive control),
T4 (5% MLM with multienzyme) and T5 (10% MLM with multienzyme). At the end of
experiment, broilers fed diet with inclusion of 5% and 10% level of mulberry leaf meal
with and without multienzyme had showed significantly higher body weight compared
to control (T0). Body weight gain was (p<0.05) significantly higher during 2nd and 3rd
week in broilers fed diets with 5% and 10% MLM with and without multienzyme
compared to negative and positive control. But during 1st, 4th, 5th and 6th week, body
weight gain was not significant among the treatment groups. Cumulative feed intake
(g/bird/week) among different treatments during 1st, 3rd, 4th, 6th week did not differ
significantly. However, during 2nd week and 5th week, cumulative feed intake differed
significantly among the treatments groups. Improved FCR was observed in broilers
fed diets with inclusion of 5% or 10% MLM supplemented with multienzyme
compared to broilers fed diets with inclusion of 5% or 10% MLM only. Further, FCR
was significantly better in MLM added group compared to control group. In nutrient
metabolizibility studies, dry matter retention, organic matter retention, crude fiber
retention, NFE retention did not differ significantly. However, crude protein retention
and ether extract retention was higher in broilers fed different levels of MLM
supplemented with multienzyme. Nitrogen, phosphorus, manganese, Iron, copper,
zinc balance did not differ significantly among treatments. However, calcium balance
was significantly higher in broilers fed diets having varying levels of MLM with and
without multienzyme. The average values of dressing percent, eviscerated yield (%),
boneless breast meat (g), boneless leg meat (g), giblet (gm) did not differ
significantly among the treatments. However, abdominal fat was significantly
(P<0.05) less in broilers fed diets containing 5% and 10% MLM with or without
multienzyme. The results showed that feeding of 5% and 10% MLM reduced the
TBA value of meat in broiler and feeding of 5% MLM with or without multienzymedelayed the lipid oxidation in broiler. Thus, dietary inclusion of MLM with and without
multienzyme could improve the shelf life of the chicken. Inclusion of MLM with or
without multienzyme did not adversely affect sensory parameters in broiler meat. The
average values of hemoglobin, packed cell volume (%) were observed non
significant among treatments and within normal physiological range. Serum total
protein, serum albumin (g/dl) and albumin: globulin (g/dl) was significantly higher in
broilers fed diet with inclusion of different levels of MLM supplemented with
multienzyme. Serum globulin (g/dl) did not differ significantly. However, Serum
cholesterol showed highly significant (p<0.05) variation among treatment groups. T1
(5% MLM) and T2 (10% MLM) showed lowest serum cholesterol followed by T4 (5%
MLM with multienzyme) and T5 (10% MLM with multienzyme) and highest in T3 and
T0. During the course of experiment, it was observed that net profit per bird was Rs.
18.09, 31.59, 34.72, 30.53, 34.50 and 39.05 in T0, T1, T2, T3, T4 and T5 respectively.
The net profit was observed highest in broilers fed diet added 10% MLM with
multienzyme (T5) followed 10% MLM without multienzyme T2, 5% MLM with
multienzyme (T4), and 5% MLM without multienzyme (T1) compared to the negative
control. In conclusion, mulberry leaf meal up to 10% inclusion level can be added
successfully in the diet of broilers without any adverse effect on the performance of
broilers. Dietary inclusion of mulberry leaf meal with and without multienzyme
improved overall performance, increased shelf life of meat and even decreased
serum cholesterol in broilers vis a viz control which resulted into increased the net
profit by reduced cost of feed per kg live weight gain.
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