Dietary supplementation effects of the levels of Neem (Azadirachta indica) leaf extracts as phytogenic feed additive on the growth performance in broiler chicks

Beathy Islam,Bimal Chandra Karmakar,Dipok Kumar Sarker,Golam Sagir Ahammad,Md Hafizur Rahman,Moinul Khandaker,Moniruzzaman Tarafder,Shuvendu Sarkar

doi:10.3329/ajmbr.v7i1.53310

Abstract

The effects that Neem leaf extract on overall growth, feed conversion ratio (FCR), dressed weight and organs weight of broiler chickens to justify its inclusion in the diet of growing broiler chickens. 120 day old chicks divided into four treatment groups T1, T2, T3 and T4 of thirty (30) birds each were administered clean drinking water with 3gm, 4gm, 5gm and 0g neem extract respectively. Impacts of neem extract treatments on growth indices suggested that Neem extract favored growth with final body weight range of 1709gm and 1763gm. Organ weights showed no deviation from standard values for healthy broiler birds. Highest growth was observed in group T3 (1763.6±141.37gm) followed by T1, T2 and lowest was in T4 group (1565.4±161.25gm). Birds on 5gm of Neem extract in their drinking water out performed birds in other treatments in assessed growth rate indices. We therefore conclude that 5gm of Neem extract in their drinking water growing broiler birds encourages healthy growth and may serve as supplements for antibiotics, especially when birds are raised in areas with minimal access to veterinary service. Asian J. Med. Biol. Res. March 2021, 7(1): 64-68

Highlights

The production of healthy birds with quality meat and eggs without harmful residues, within a short time interval is the major concern to modern poultry farmers
In this research we evaluate the effects that neem leaf extract on growth performance and organs weight of broiler chickens to justify its inclusion in the diet of growing broiler chickens. 120 day old chicks divided into four treatment groups T1, T2, T3 and Treatment 4 (T4) of thirty (30) birds each were administered clean drinking water with 3gm, 4gm, 5gm and 0gm neem extract respectively
This study has shown that neem extract inclusion in water for growing broiler birds has no detrimental effect on birds which implies that their consumable products will pose no health hazard to consumers

Summary

Introduction

The production of healthy birds with quality meat and eggs without harmful residues, within a short time interval is the major concern to modern poultry farmers. The use of synthetic drugs as antibiotics and growth promoters has high cost implications, and sometimes, with attending adverse side effect on birds health, prolonged withdrawal period and risk of accumulation in tissues and egg which could have harmful effects on human health (Jawad et al, 2014; Sarker et al, 2018). Consumers of poultry products are demanding for drug residues free meat and egg (Talukder et al, 2017). This has triggered the search for alternatives means to produce birds at reduced cost using natural growth and health promoters (Sarker et al, 2020). Medicinal plants are cheap and renewable sources of pharmacologically active substances and are known to produce certain chemicals that are naturally toxic to bacteria (Islam et al, 2018)

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