Suchergebnisse

Models such as InraPorc enable the growth of pigs to be simulated and their nutrient requirements to be determined. However, so far, these models have not been applied to local breeds. We used InraPorc to determine the nutrient requirements of growing pigs from local breeds (H2020 European Union project TREASURE). Data on feed composition, allowance and intake, and body weight (BW) were obtained from literature reports or experiments conducted within the project. Data were used in InraPorc to calibrate 16 growth and intake profiles from nine breeds (Alentejana, Basque, Bísara, Apulo Calabrese, Cinta Senese, Iberian, Krškopolje pig, Mangalitsa, and Moravka), with one to three profiles per breed depending on the experimental conditions or data source. On the 40-100 kg BW range, mean protein deposition (PDm) was low for all breeds (below 116 g/d vs. over 130 g/d in conventional breeds). The age of pigs at 40 kg BW (110 to 206 days) denoted different types of feeding management in addition to genetic differences. The PDm and the lysine requirements were the highest in breeds with the highest average daily gain. In all breeds, a small proportion of total body energy retention was dedicated to protein, with the greatest proportion of energy retention in the form of lipids. Despite some methodological limitations, this study provides initial insights into the nutrient requirements of some local breeds. ; This project has received funding from the European Union's Horizon 2020 research and innovation program under grant agreement No 634476 (Project acronym: TREASURE). The contents of this manuscript reflects only the views of the authors and the European Union Agency is not responsible for any use that may be made of the information it contains. Core financing by the Slovenian research agency (grant P4-0133 for M.C.-P.) is also acknowledged. ; Peer Reviewed

Unlike in modern breeds, the knowledge on performance and management of local pig breeds is very limited. These are key aspects to be developed for their successful exploitation that requires strategies adapted to their specific productive and metabolic characteristics, quite different from those of modern pig breeds, to ensure their preservation and future expansion, particularly for those more endangered. These are some of the challenges addressed by the project TREASURE. For this purpose, a series of experiments involving 11 European local breeds -differing in the level of development- have been carried out covering various and complementary aspects like nutritional requirements in different productive phases (Cinta Senese, Iberian), feeding practices involving locally available resources (Krskopolje, Schwäbisch- Hällisches, Turopolje, Mangalitsa, Bísaro, Iberian, Gascon), and innovative management and housing practices to enhance product quality or improve animal welfare (Cinta Senese, Alentejano, Bisaro, Iberian, Mangalitsa, Moravka, Krskopolje, Schwäbisch-Hällisches, Black Slavonian). All these activities have been designed to obtain essential information to develop future productive strategies for each of the involved breeds, taking into account to obtain local high-quality products, and seeking for optimum pig performance and high animal welfare conditions in the production systems under consideration. The information provided constitutes a unique and valuable set of data for the management of these breeds and the further development of local pork chains. In some cases it is the first available data for the breeds concerned. A general overview of the developed activities will be presented highlighting some of the achievements obtained. Funded by European Union's H2020 RIA program (Grant agreement no. 634476).