The effect of dietary yellow lupine (&lt;i&gt;L. luteus&lt;/i&gt; cv. Baryt) on growth performance, carcass characteristics, meat quality and selected serum parameters of turkeys

M Krawczyk,J Jankowski,M Przywitowski,D Mikulski

doi:10.22358/jafs/65654/2015

Abstract

This study evaluated the effects of dietary replacement of soyabean meal (SBM) with yellow lupine seed meal (YLM) in turkeys. A total of 1120 one-day-old Hybrid Converter female turkeys were fed diets containing 0%, 8%, 16% and 24% of YLM (LM 0 , LM 8 , LM 16 , LM 24 , respectively) in a 16-week experiment. In the first phase of feeding (weeks 0-4), an increase in the YLM content of diets caused a linear decrease in feed intake (FI) and body weight gain (BWG) and the noted differences were significant ( P < 0.001) in group LM 24 . In 16-week-old turkeys, dietary inclusion of lupine at up to 24% had no adverse effects on FI, BWG or feed conversion. Experimental diets had no influence on the analysed serum parameters or mortality of turkeys or on the incidence of footpad dermatitis. No significant changes in carcass and muscle yields were observed. Group LM 24 turkeys were characterized by significantly ( P = 0.033 vs LM 0 ) higher relative gizzard tissue weight. The abdominal fat content tended to increase (P = 0.055 vs LM 0 ) in birds fed lupine-based diets. A linear increase (P < 0.001) in the concentrations of polyunsaturated fatty acids was noted in meat from turkeys fed lupine-based diets; this did not change the n-6/n-3 PUFA ratio, but improved the values of the atherogenic and thrombogenic indices. Diets containing YLM had no influence on the chemical composition, physicochemical properties or sensory attributes of turkey meat. In conclusion, starter diets containing 24% YLM could have an adverse influence on bird performance. Yellow lupine seeds can be added to diets for older turkeys at up to 24% as an effective substitute for SBM without affecting the key variables of performance and without negative effects on meat quality.

Highlights

Due to increased demand for high-protein feed components and high prices of soyabean meal (SBM) in the European Union, recent years have witnessed a growing interest in alternative vegetable protein sources in poultry diets (Nalle et al, 2011; Smulikowska et al, 2014; Zduńczyk et al, 2014)
In the first phase of feeding, an increase in the yellow lupine seed meal (YLM) content of diets caused a linear decrease in feed intake (FI) and body weight gain (BWG) and the noted differences were significant (P < 0.001) in group LM24
In subsequent feeding phases and during the entire 16-week rearing period, dietary inclusion of lupine at up to 24% had no adverse effects on FI, BWG or feed conversion

Summary

Introduction

Due to increased demand for high-protein feed components and high prices of soyabean meal (SBM) in the European Union, recent years have witnessed a growing interest in alternative vegetable protein sources in poultry diets (Nalle et al, 2011; Smulikowska et al, 2014; Zduńczyk et al, 2014). The results of earlier studies indicate that the content of yellow lupine seeds in broiler chicken diets should be limited to 20%–25% (Orda et al, 2006) or even 10%–12% (Farrell et al, 1999). In a recent review of the latest research findings, Smulikowska et al (2014) reported that the inclusion of sweet lupine at 15% of the diet can be accepted in older broilers, provided that the diet is supplemented with adequate amounts of amino acids and fat

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