Colom Balanyà, Octavi

Universitat Autònoma de Barcelona. Facultat de Veterinària

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ALTERNATIVE PROTEIN SOURCES FOR LAYING HENS Octavi Colom Balanyà 29/06/2016   Objectives 1. Define alternatives protein sources that could replace the ones currently in use for aviculture 2. Compare this sources with the ones being used (soybean meal and fish meal mainly) and see if they could fulfill the amino acid and proteic requirements of the birds. Conclusions 1. There exist multiple protein sources with potential to substitute or complement soy bean or fish meal. 2. We need more studies to determine nutrient characteristics, inclusion limits for laying hens that do not impair performance, and better methods to obtain and process them.  3. The best sources of protein studied are those coming from insects, larvae and worms which have higher PB than plants and a better amino acid profile which sometimes compares or overtakes even fishmeal.  4. Insects have much better conversion rates than domestic animals, which gives them a lot of potential as protein sources for compared to traditional animal protein sources which are more expensive and more contaminant. 5. Some plant sources like duckweed seem to have a bright future as protein sources, because they seem to be able to give more protein /ha at a faster growth rate and also come with added benefits like the purification of water and the availability of protein at a similar price all year around due to clonal growth which enables farmers to recollect it continuously.    In these graphics we see the steady increase in prize of soy and fish meal witch are the 2 most common protein sources in aviculture. Traditional protein sources Feed PB % Methionine % Lysine % Soybean meal 44-48 0,644 2,8 Fish meal 62 1,62 4,5 Protein and amino acid requirement for laying hens (cages – ground) Age PB % Methionine % Lysine % Prelaying (17 weeks – laying start) 16,4-16.2 0,38 0,78-0,71 Laying start ( <45 weeks) 16,5-16 0,4 0,80-0,74 Laying end (>45 weeks) 15,8-15,5 0,35 0,71-0,68 Duckweed Algae Fodder trees and shrubs Grain legumes Yeasts Oil subproduts Sesame meal Linseed meal Safflower meal Snail  Housefly maggot  Earthworm Silkworm pupae Black bettle larvae Black soldier fly larvae Acridids Inclusion limits of some protein sources  Duckweed 15-20% of diet Copra meal Can substitute soy up to 50%  Palm kernel meal Can substitute soy up to 50%  Sesame meal Can substitute soy up to 30% Safflower meal 10% of diet Snail meal 10% of diet fresh Housefly maggot meal Can substitute fishmeal up to 100% Earthworm meal  14% of diet (broilers) Silkworm pupae meal 8% of diet 

Alternative protein sources for laying hens

https://ddd.uab.cat/pub/tfg/2016/174486/TFG_ocolombalanya_poster.pdf

Alternative protein sources for laying hens

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