Effect of replacing soy in broiler diets on performance, carcass yield and cost of production

Ritter, M.; Albiker, D.; Spring, Peter (2015). Effect of replacing soy in broiler diets on performance, carcass yield and cost of production In: 20th European Symposium on Poultry Nutrition : full papers (pp. 443-445). Beekbergen / The Netherlands: World's Poultry Science Association (WAPSA)

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The study aimed to evaluate the effects of replacing soy bean meal (SBM) in broiler diets on production parameters. A randomized trial (36 d) was conducted using 20 pens (20 m2, 280 Ross PM3 birds). A starter and grower diet (12.6/13.0 MJ ME, 210/200 g CP, 12.8/12.2 g lysine) were fed as crumbs. The diets contained either a high level of SBM (HS; starter/grower: 28.7/26.8% SBM and 2.5/2.5% rape seed meal (RSM)), a medium level of SBM (MS; starter/finisher: 15.0/15.0% SBM, 15.0/15.0% peas, 5.0/5.0% RSM, 5.0/5.0% sun flower meal (SFM), 2.8/2.0% potato protein (PP) or no SBM (NS; starter/grower: 25.0/25.0% peas, 5.0/5.0% RSM, 10.0/10.0% SFM, 5.3/4.5% PP, 4.0/4.0% corn gluten). Treatments were HS/HS, MS/MS, MS/NS, NS/NS for starter/finisher diets. Performance parameters, litter quality, hock burns (HB) and foot pad lesions (FPL) were recorded and analysed by using ANOVA and Tukey-Kramer. Feed intake for HS/HS, MS/MS, MS/NS, NS/NS was 3438a g, 3481ab g, 3574b g, 3580b g (P, 0.003). Body weight (Ø 2234 g), FCR (Ø 1.57) and mortality (Ø 2.14%) did not differ between treatments. The ratio of water/feed intake was highest in HS/HS. This led to lower litter quality and significantly higher scores for FPL compared to the other treatments. Carcass yield (Ø 69.50%) and composition did not differ between treatments. Feed ingredient costs were 5% higher for NS/NS compared to HS/HS. Overall performance was comparable between treatments, however, SBM led to significantly higher occurrence of FPL.

Item Type:

Conference or Workshop Item (Paper)


School of Agricultural, Forest and Food Sciences HAFL > Resource-efficient agricultural production systems
School of Agricultural, Forest and Food Sciences HAFL > Agriculture


Ritter, M.;
Albiker, D. and
Spring, Peter


Q Science > QL Zoology
S Agriculture > SF Animal culture


World's Poultry Science Association (WAPSA)




Service Account

Date Deposited:

10 Mar 2020 16:30

Last Modified:

10 Mar 2020 16:30

Uncontrolled Keywords:

Soy, protein alternatives, broiler, performance





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