Effect of Fat Sources and Emulsifier Supplementation in Broiler Starter, Grower and Finisher Diets on Performance, Nutrient Digestibility, and Carcass Parameters

J Kamran,Sh Qamar,A Mahmud,A Rehman,Saima Saima,M Hussain,Ma Rahman,S Khalil,S Mehmood

doi:10.1590/1806-9061-2020-1285

Abstract

ABSTRACT The purpose of this study was to evaluate the effect of fat sources and emulsifier supplementation in different phases on growth performance of broilers. Treatments were; (T1) basal ration (BR) which contained soy oil (SO) and had inclusion of emulsifier for whole life, (T2) BR which contained poultry fat (PO) and had inclusion of emulsifier for whole life, (T3) BR which contained oxidized oil (OO) and had inclusion of emulsifier for whole life, (T4) BR which contained SO and had inclusion of emulsifier during starter phase (T5) BR which contained PO and had inclusion of emulsifier during the starter phase, (T6) BR which contained OO and had inclusion of emulsifier during the starter phase, (T7) BR which contained SO and had inclusion of emulsifier during the starter phase (T8) BR which contained PO and had inclusion of emulsifier during the grower phase, (T9) BR which contained OO and had inclusion of emulsifier during the grower phase, (T10) BR which contained SO and had inclusion of emulsifier during the finisher phase, (T11) BR which contained PO and had inclusion of emulsifier during the finisher phase (T12) BR which contained OO and had inclusion of emulsifier during the finisher phase. The Basal ration which contained SO and supplemented emulsifier during the grower phase and throughout life increased the body weight gain. The supplementation of emulsifier in the finisher phase and throughout life in a diet which contained SO had better feed conversion ratio. The supplementation of emulsifier in the finisher phase and throughout life in SO based diet increased the dry matter and crude fat digestibility. We recommend emulsifier supplementation in the finisher phase for the economic point of view.

Highlights

In commercial broiler diets, vegetable oils and animal fats are being used to increase the energy density of the diet and to improve the growth rate and feed efficiency of broilers (Blanch et al, 1996; Tavárez et al, 2011; Zhang et al, 2011)
The results revealed main effects for fat source on crude fat and dry matter (DM) digestibility
Results showed no main effects of fat sources and emulsifier levels on the quality parameters of carcass (p>0.05). The purpose of this experiment was to check the effects of fat sources inclusion in broiler diets with emulsifier on the feed intake, body weight gain (BWG), nutrient digestibility, and carcass parameters on different phases of broiler life

Summary

Introduction

Vegetable oils and animal fats are being used to increase the energy density of the diet and to improve the growth rate and feed efficiency of broilers (Blanch et al, 1996; Tavárez et al, 2011; Zhang et al, 2011). Among available oil sources for broiler feed, vegetable oils are rich in polyunsaturated fatty acids and are highly digestible for broilers. Polyunsaturated fatty acids are highly sensitive towards oxidation during storage that could be detrimental for the growth and health of broilers (Jakobsen et al, 1993; Engberg et al, 1996; Anjum et al, 2004; Tan et al, 2018; Yang et al, 2019). Jakobsen et al (1993) and Lin et al (1989) reported that oxidized fat in the diet of broilers had a negative eRBCA-2020-1285

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Methods

Conclusion