Om HOPeS

Alternative poultry production with dual-purpose genotypes (Sanna Steenfeldt (WPL), ANIVET, AU) The objective is to study suitable dual-purpose genotypes where females are used for egg- and meat production and males for meat production in a free-range system and feed based on 100% organic ingredients and with nutrient composition and amino acid profile optimised for the specific genotypes. The diets will differ in protein content and amino acid profile and the effect of genotypes and diets will be studied during a full production period for each genotype on performance efficiency, nutrient digestibility and retention, behaviour and welfare and product quality. er Side 6 The main part of the experiments will be conducted at the Organic Research Platform at Aarhus University, Viborg, where outdoor runs vegetation and mobile houses for poultry are well established. Activities: 1.1. Selection of dual-purpose genotypes in cooperation with the Danish company Top-Æg. A slow growing broiler genotype and egg-laying genotype used in the organic production at present, will be used as controls. 1.2. Main experiment with male chickens, 1.3. Digestibility and retention study with males, 1.4. Main experiment with laying hens: Effect of genotypes and diets will be studied on performance efficiency, behaviour and welfare. Both males and females will be used for evaluation of meat quality (WP3, WP4).1.5. Digestibility and retention study with females/ layers: studies on nutrient digestibility, nitrogen and phosphorus retention. All the data obtained will be used to calculate the effect on environment and climate (WP6), and the most promising dual-purpose genotype will be included in demonstration studies at two organic producers (WP5). 1.6. Dissemination and publication.

The objective is to develop new feeding strategies for dual-purpose genotypes differing from the standard breeds in nutrient requirement and production potential with optimal protein content and choice of raw materials which is expected to reducenitrogen and phophorus excretion. Activities: 2.1. Selection of organic raw materials for experimental diets, which will rely on locally grown organic protein sources, reducing import of soya beans. 2.2. Formulation and production of feed for WP1: The experimental feed will be formulated with low PFAS fishmeal to lower the total content of protein consequently lower excretion of nitrogen. PFAS analysis will be taken of both fish meal and eggs. 2.3. Formulation and production of feed for WP5: diet composition will be formulated based on the genotype selected for the demonstration activities. 2.4. Implementation of new feed concept for a dual-purpose production.

Assesment of meat and eating quality and Consumer acceptance of dual-purpose organic products (Margrethe Therkildsen (WPL), FOOD, AU) The purpose is 1) to characterize the impact of genotype and feeding strategy on the yield, meat and eating quality of the meat from the male broilers and the female hens after lay, and 2) to use this knowledge to evaluate the consumer acceptance of the products from both the male broilers and the spent hens. Activities: 3.1. Meat quality evaluation of male chickens and laying hens: Males and female birds will be slaughtered at a commercial slaughter house, and carcass quality evaluated. A sub-set of the genotype x feeding strategy will be used for meat quality assessment (pH, colour, drip loss, fat content and composition, texture and oxidation). 3.2. Sensory profile analysis of male chickens and laying hens: and a similar sub-set will be used for sensory profile analysis, using a trained panel. 3.3. Consumer preference studies: a consumer study will be conducted to evaluate preference as well as usability in different dishes developed in collaboration with chef (WP5). 3.4. Dissemination and publications.

The purpose is to develop cooking methods and recipes adapted to the different meat structure of dualpurpose male chickens and hens, which will increase consumers interest in the products and will implicitly convey the realization that dual-purpose poultry be will be an exclusive raw material. 4.1. Development of cooking methods and recipes based on dual purpose poultry products and meat from both males and females. 4.2. Selection of dishes for evaluation of usablity of different products: Moment will serve selected dishes at the restaurant to evaluate its acceptance/usability by the guest and give inform about the different production in relation to animal welfare and sustainability. 4.3. Dissemination activities related to the supply chain (etc. supermarkets and consumers) of the dual purpose concept: via Moment's large national and international following and relationship with food journalists. Restaurant Moment will convey the dual-purpose concept in connection with 1-2 large public events, e.g. Aarhus Food Festival.

The purpose of on-farm trials is to proof the use of the most promising dual-purpose genotype from WP1 in practice, based on results obtained in WP1, WP2 and WP3. An important outcome of WP5 is to er Side 7 demonstrate the dual-purpose concept at farm level. Activities: 5.1. Planning of two demonstration trials: Project partners and the producers will be involved in planning of the trials. 5.2. Demonstration trial with dual-purpose males with producer b. 5.3. Demonstration trial with dual-purpose females with producer a. 5.4. Dissemination activities on the production results will be carried by publication in popular journals, and presentations at workshops organized for different stakeholders. This work package will also produce illustrations for dissemination purposes in both WP5 and WP4.

The purpose is to estimate the environmental and climate effect from two different organic productions, 1) dual-purpose concept, where females are used for both egg- and meat production and males for meat production, 2) egg production from a more efficient layer genotype, AND a meat production with the organic broiler genotypes used in the present production. Activities: Defining systems and boundaries for each concept of production. 6.2. Estimation of quantitative nutrient balances: Nitrate leaching is estimated from the concentrations in soil water from WP1, by coupling with the field water balance modelled by DAISY (ref). Gaseous emissions of ammonia and nitrous oxide for all treatments will be estimated based on EEA and IPCC standards. 6.3. Registration of input and output of feed, management, products, land requirements: Information will be received from other WP’s. 6.4. Life cycle assessments: For both production systems, the effect on environment and climate for the total production (eggs and meat), will be estimated. The feeding strategies and vegetation outdoor will be taken into account. 6.5. Dissemination and Publications.

Activities: 7.1. Kick off meeting. 7.2. Steering committee meetings 1-2 times per year. 7.3. Project meetings 3-4 times per years to coordinate activities. 7.4. Mandatory status and final reports.