Alternative protein sources can increase the use of locally produced protein, supporting the transition to 100% organic feeding. Clover-grass concentrate has a high protein content with a good amino acid profile for poultry. It is necessary to dry the green protein paste to maintain a good quality, but the drying process is expensive.
Il progetto RELACS ha messo a punto delle raccomandazioni per l’integrazione di vitamina B2 nei polli da carne biologici a crescita lenta e per le galline ovaiole nei sistemi avicoli biologici.
Alternatives to riboflavin (vitamin B2) production by recombinant microorganisms are needed in organic poultry production, but are cost-intensive, so that a demand-oriented riboflavin supply is necessary. Details on the riboflavin requirements of organic poultry are not available. A feed material with high native riboflavin content from fermentation of the filamentous fungus Ashbya gossypii was studied. Two runs with 800 Ranger Gold™ broilers each (40 pens with 20 animals) were conducted.
As a result of public health concerns regarding antimicrobial resistance in animal-based food products, conventional poultry companies have turned to ‘raised without antibiotics’ (ABF) and organic farming systems. In this work, we evaluated the influence of rearing systems on antimicrobial susceptibility in E. coli and extended-spectrum β-lactamase (ESLB) E. coli diffusion in conventional (C), organic (O) and antibiotic free (ABF) chicken samples collected from cloacal swabs and skin samples in slaughterhouse. The E.
Switching poultry rations from 95 % to 100 % organic feed can lead to a reduction in the use of home-grown and regional feed. Currently, conventional maize gluten and conventional potato protein are replaced by organic oilcake (soya, sunflower, rapeseed, sesame). Oilcake has a comparatively low content of important amino acids such as methionine and so higher proportions of oilcake must be used. This can lead to further reductions in the use of regionally produced and home-grown feed components such as cereals.
Soya is one of the most important sources of protein in poultry feeding. However, the high crude protein content alone is not sufficient to meet the special needs of poultry on essential amino acids. They need to be supplemented with other components to get optimal amounts and ratios. In poultry, the feeding of raw soya beans is not possible due to digestive inhibiting components (trypsin inhibitors), and must be prepared by thermal treatment. Soya beans have a very high oil content. Full-fat beans can therefore be used in the ration with a maximum of 10 - 12 %.