The National Head of the INIA Animal Production area welcomed the binational seminar organized by INIA Carillanca, regarding the use of coarse forages for animal feed, which was carried out under zoom mode and which had the participation of renowned specialists from the heading. During the seminar, the researchers Emilio Ungerfeld (INIA-Chile); Hugo Arelovich (National University of the South - Argentina) and Ayelén Mayo (INTA-Argentina).

”Animal feeding strategies and especially nutrition are important components of our strategic development axes as an area. Chile provides a diversity of productive ecosystems, where climatic diversity produces not only low-quality forages, but many times it is simply almost non-existent, limiting the development of productive systems. That is why sharing experiences in the field of coarse forages in this seminar will allow acquiring knowledge and consolidating better work teams and instances of collaboration in pursuit of applied research that generates alternative solutions for the different production systems, ”said Ximena Valderrama.

Dr. Emilio Ungerfeld from INIA Carillanca presented results of the research project «Influence of the genotype of wheat and oats on the nutritional value of their stubble: a study in vitro«, Where the kinetics of gas production in ruminal microbial cultures and the proximal composition of stubble of 75 different genetic materials of wheat and oats were evaluated. Significant, although moderate, effects of genotype on digestion were found in vitro of the stubble from different genetic materials.

This was followed by the presentation by Hugo Arelovich, who referred to low-quality forages and their potential for use in ruminant nutrition, oriented towards strategies to improve the nutritional value of cereal stubble through chemical treatments, such as the application of urea and of alkalis (sodium hydroxide), and strategies of supplementation of stubble with protein supplements. The work showed improvements in digestibility and productive performance of sheep and cattle when these strategies are carried out.

Finally, Ayelén Mayo spoke about the alternatives for supplementation of breeding cows fed with low-quality forages in the southwest of Buenos Aires, who presented results that his research group has obtained by supplementing low-quality forages and stubble as well as winter greens with protein supplements. and energetic. The results presented show that it is possible to take better advantage of low-quality forages through supplementation, and how this translates into improvements in the reproductive performance of breeding cows.

Older antecedents manuel.vial @ www.inia.cl

About INIA

The Instituto de Investigaciones Agropecuarias (INIA) is the main institution for agri-food research, development and innovation in Chile. Linked to the Ministry of Agriculture, it has a national presence and a work team of more than 1,000 highly qualified people. It executes an average of 400 projects per year around 5 strategic areas: Climate Change, Sustainability, Food of the Future, Emerging Technologies, and Extension and Capacity Building. These initiatives contribute to the sustainable agri-food development of the country, creating value and proposing innovative solutions to farmers, strategic partners and the population, generating a social profitability that varies between 15% and 25%, for each peso invested in each of their projects.

INIA, more than 55 years leading the sustainable agri-food development of Chile.

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