This document summarizes a study on using neem leaf extract as a growth promoter in broilers as an alternative to antibiotic supplementation. The study found that broilers given neem leaf extract in their water had higher average body weights, lower feed conversion ratios, higher dressing percentages, and were more cost effective compared to broilers given antibiotics or no supplements. The neem leaf extract group also had the highest net profits per bird and per kilogram of live weight. The study concludes that neem leaf extract is an effective and lower cost alternative to antibiotics as a growth promoter in broilers.

1. IMPLEMENTATION OF NEEM LEAVES (AZADIRACHTA
INDICA) AS A GROWTH PROMOTERS
IN BROILERS ALTERNATIVE TO ANTIBIOTIC
SUPPLEMENTATION
Torun Kumar Paul
Roll no.: 14VPHAJD01M
Reg. no.: 42449
Session: 2014-15
Dept. of Pharmacology,
Bangladesh Agricultural University

2. Talk Plan
Background
Gap
Objectives
Methodology
Results
Conclusion

3. Background
• In discriminate use of antibiotic in poultry industry
• Drug residue affects
• Antibiotic-bacterial resistance
• Banned antibiotic as growth promoter
• Wide use of herbal plant in veterinary science

4. Gap
• No comparative study of Neem extract with
Antibiotics
• No practice of neem leaves extract commercially in
poultry industry .

5. Objectives
To study effect of Neem leaves extract in broiler
Establishing concept of neem extract as growth
promoters in poultry.

6. Methodology
• Broiler shed
• Case preparation
• Chick management
• Broiler management 200w
200w
4 square feet3squarefeet
w
F

7. Contd.
Preparation of leaves extract:
Slight modification of maceration and infusion procedure .
20ml / L in water

8. Contd.
• Experiment Layout

9. Tag marking
Contd.
Skinning
Separation of offal’s

10. Contd.
• The data were recorded in excel sheet
• Subjected to analysis of variance procedures by SPSS IBM
20.

11. Results
Comparison of live body weight among the groups
No. of days Mean±SEM
Negative control Positive control Treatment (Neem)
Day 03 51.58±3.47a 50.83±4.87a 51.91±3.04a
Day 07 93.5±7.63a 89.5±13.03a 100.5±8.26a
Day 14 321.66±17.04a 302.66±13.94a 304.5±11.40a
Day 21 638.833±26.58a 685.0±31.96a 703.0±25.43a
Day 28 1127.16±62.74a 1237.66±49.94a 1256.0±32.46a
Day 35 1546.66±88.30a 1782.16±45.83b* 1833.33±76.88b**

12. Contd.
Treatment group Positive control Negative control
Weight gain mean 1781.416667 1731.333333 1495.083333
0
500
1000
1500
2000
2500
Weight(gm)
Weight gain comparision

13. Contd.
Feed conversion ratio (FCR)
1.10
1.41 1.41 1.38
1.291.23
1.52 1.52
1.43
1.39
1.18
1.63 1.63
1.57
1.54
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
1.80
Day 7 Day 14 Day 21 Day 28 Day 35
FCR Line of groups
Treatment
Positive
Negative

14. Contd.
Dressed
weight,
63.45
Liver, 1.82
Gizzard,
0.73Heart,
0.55
Spleen,
0.11
Pancreas,
0.15
Other,
31.51
Treatment
Dressed
weight,
64.23
Liver,
1.65Gizzard,
0.78
Heart,
0.42
Spleen,
0.09
Pancreas,
0.12
Other,
30.91
Positive
Dressed
weight,
60.17
Liver, 1.63
Gizzard,
0.64
Heart, 0.41
Spleen, 0.09
Pancreas,
0.13
Other,
34.67
Negative

15. Contd.
Description Group-A
(Negative)
Group-B
(Positive)
Group-B
(Treatment)
Cost/chick (Taka) 39.00 39.00 39.00
Average feed consumed (Kg)/bird 1.54 1.39 1.29
Feed price/kg (Taka) 44.00 44.00 44.00
Cost of herbal growth promoters
(Taka)
0.00 0.00 5.00
Medicinal cost (Taka) 0.00 10.00 0.00
Feed cost /broiler (Taka) 104.35 108.86 103.87
Miscellaneous (Taka) 23.00 23.00 23.00
Total cost/broiler (Taka) 166.35 180.86 170.87
Average live weight (Kg) 1.54 1.78 1.83
Sale price/Kg live wt. (Taka) 125.00 125.00 125.00
Sale price/broiler (Taka) 192.5 222.5 228.75
Net profit/broiler (Taka) 26.15 41.00 57.88
Profit/ Kg live weight (Taka) 16.98 23.03 31.63

16. Conclusion
 Neem leaves extract as growth promoter cost
effective
 Lower feed conversion ratio (1.29) in treatment
group
 Highest dressing percentages
 Lower medication cost
 Antibiotic free meat
 Further study increase

17. Acknowledgement
• Prof. Mahabub Mostofa, Dept. of Pharmacology
• Prof. Md. Abu Hadi Nur Ali Khan, Dept. of Pathology
• Dr. Md. Mahmudul Hasan, Head, Dept. of
Pharmacology
• Dr. Kazi Rafiqul Islam, Dept. pharmacology
• Dr. Zahorul Islam, Dept. Pharmacology
• Dr. Md.Taohiudul Islam, Dept. of Pharmacology
Research Team, Dept. of Pharmacology

18. Thank You