Functionality of Elaeocarpus serratus leaves on growth, meat quality and cost return analysis in broiler rearing

Kona Adhikary,Md Manirul Islam,Meherunnesa Chowdhury Sumy,Priunka Bhowmik

doi:10.3329/ajmbr.v6i4.51231

Kona Adhikary, Md Manirul Islam + Show 2 more

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https://doi.org/10.3329/ajmbr.v6i4.51231

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Abstract

The study was conducted to evaluate the effects of olive leaves with probiotics (OLP) on growth performance, carcass characteristics, meat quality, blood parameters and oxidative stability of meat in broiler. A total of 160 day old, unsexed Cobb-500 chicks were distributed in to five dietary treatment groups: Control (Basal diet), OLP-1 (Basal diet + 0.4% OLP, DM basis), OLP-2 (Basal diet + 0.8% OLP, DM basis), OLP-3 (Basal diet + 1.2% OLP, DM basis) and OLP-4 (Basal diet + 1.6% OLP, DM basis) having 4 replications with 8 birds in each in a completely randomized design. Results showed that the live weight, overall average daily gain (ADG) increased significantly (p<0.05) in all treatment groups compared to control. The weekly feed conversion ratio (FCR) reduced significantly (p<0.05) in 0-14 days and the weekly ADG improved in 15-28 days. Blood cholesterol and high density lipoprotein (HDL) increased significantly (p<0.05) in all treatment groups except OLP-4 compared to control. The dressing percentage showed significant (p<0.05) difference among treatment groups and control. Organs weight were similar among treatment groups, although the breast meat and bursa weight differed significantly (p<0.05) in treatment groups. A significant increase (p<0.05) in meat crude protein (CP) and total ash content in treatment groups relative to control. Meat thiobarbituric acid reactive substances (TBARS) significantly (p<0.05) decreased at 0.8%, 1.2% and 1.8% during 1st, 2nd, 3rd weeks and in average value as well. Net return and benefit cost ratio (BCR) substantially increased in all treatment groups compared to control (p<0.05). Finally, dietary OLP supplementation improved growth performance, meat CP and ash content, increased blood cholesterol, HDL content, net rutrun and BCR while reduced meat TBARS value. Thus, olive leaf probiotics can be a potential source to be used as feed additive in broiler. Asian J. Med. Biol. Res. December 2020, 6(4): 650-658

Highlights

IntroductionThe broiler industry has been threatened because of the use of antibiotics as growth promoter in sub-therapeutic doses which can exert health hazard by depositing antibiotic residue in human body (Muaz et al, 2018)
Broiler farming seems to be a considerable part of meat industry all over the world
There was a significant increase in average daily gain (ADG) observed in all dietary groups than control from 0-28 days of age where the highest gain was observed in olive leaves with probiotics (OLP)-4 group (38.74 g/b/d) suppled with 1.6% OLP in diet

Summary

Introduction

The broiler industry has been threatened because of the use of antibiotics as growth promoter in sub-therapeutic doses which can exert health hazard by depositing antibiotic residue in human body (Muaz et al, 2018). Farmers often use commercial feeds containing antibiotics and violate the rules of antibiotic usage (Wasnaeni et al, 2015). This opened a necessity for the use of an alternative growth promoter in broiler with no adverse effect on human health, promisingly natural products. Olive leaves contain many secondary metabolites such as saponins, tannins, cardiac glycosides, flavanoids, phytosterol, steroids and antioxidant like ascorbic acids (Das et al, 2017). The leaves of E. serratus contains fatty acids, Asian J.

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