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To toast or not to toast – Grass peas for weaned piglets

Baldinger, Lisa; Hagmüller, Werner; Minihuber, Ulrike and Zollitsch, Werner (2013) To toast or not to toast – Grass peas for weaned piglets. Poster at: XXI Animal Science Days, Padua, 18 - 20 September 2013.

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PDF - Published Version - English


In organic pig production, supply with high-quality protein-rich feeds is tense. As part of the EU Core Organic II research project ICOPP (Improved contribution of local feed to support 100% organic feed supply to pigs and poultry), in 2012 a feeding trial with grass peas fed to weaned piglets was conducted. The grass pea (Lathyrus sativus) is a hardy grain legume that produces seeds with crude protein contents between 200 and 300 g kg-1. Unfortunately it contains the neurotoxin ODAP, which causes nerve damage in farm animals as well as humans. Since ODAP is water-soluble and susceptible to heat, hydrothermal treatment (=toasting) greatly reduces toxicity. In the feeding trial, four experimental diets were fed to a total of 144 piglets: One control diet, one diet containing 20% raw grass peas and two diets with toasted grass peas (20 and 30%, respectively). Data were analysed using proc glm (feed intake) and proc mixed (body weight) of SAS 9.1.
Feed intake did not differ (on average 731 g day-1), but feeding 20% raw grass peas had significant negative effects on body weight gain: While the diets containing toasted grass peas resulted in body weight gain similar to the control diet (on average 395 g day-1), piglets fed raw grass peas grew much slower (292 g day-1) and consequently feed conversion ratio was significantly higher (2.28 versus 1.96 kg feed kg-1 weight gain in the control group). Therefore toasting of grass peas prior to feeding to weaned piglets is recommended.

EPrint Type:Conference paper, poster, etc.
Type of presentation:Poster
Keywords:Lathyrus, grass pea, organic, piglets
Subjects:"Organics" in general
Animal husbandry > Feeding and growth
Animal husbandry > Production systems > Pigs
Research affiliation: European Union > CORE Organic II > ICOPP
Austria > HBLFA Raumberg-Gumpenstein
Austria > Univ. BOKU Wien > Sustainable Agr. Systems - NUWI
Deposited By: Baldinger, Dr Lisa
ID Code:28061
Deposited On:20 Jan 2015 11:54
Last Modified:20 Jan 2015 11:54
Document Language:English
Refereed:Peer-reviewed and accepted

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