Residue from corn ethanol production brings gain in beef cattle

Posted by Marina

Research carried out over four years showed economic and performance gains in the diets of beef cattle using DDG. The product is the corn grain dried by distillation in the ethanol manufacturing process and has a high protein content. Bran is already widely used in the United States, Argentina and Paraguay and has been offered in the international market with greater quantity due to the expansion of grain and fuel production in the country.

With emphasis on beef cattle nutrition, DDG can replace noble protein compounds that have a higher cost. The survey was carried out by the animal nutrition company Trouw Nutrition and by the Universidade Estadual Paulista (Unesp) - Jaboticabal campus. “The motivation was to generate data with the Brazilian DDG to better understand its management in tropical diets and, thus, to be able to take information to the rancher, who is always attentive to high performance and cost reduction options. DDG is a source of protein with an increasing supply in Brazil due to alcohol distilleries from corn ”, explains João Benatti, product manager for Ruminants at Trouw Nutrition.

The report had the conclusions drawn by the members of the UnespFor Research Group, from the Forage and Pasture sector, and presented results in two breeding periods: water (rearing) and drought (finishing). During breeding (water season), the increasing inclusion of DDG as a source of non-degradable protein in substitution for cottonseed meal and supplements with different nutritional inputs with DDG in its composition, provided for beef cattle managed on pastures, was evaluated. “It was possible to assess consumption, apparent total digestibility, nitrogen balance, efficiency of microbial protein synthesis, ruminal parameters, efficiency in weight gain and use of nitrogen, animal performance and methane production”, informs Benatti. In the dry season of the year, when the final fattening phase of the animals occurs, termination systems were compared: Express Confinement and conventional confinement.

The study concluded that no restrictions can be observed regarding the use of DDG in the diet of beef cattle. The greatest impediment found concerns the cost of the co-product. “The livestock farmer must always take into account the law of supply and demand, a fundamental factor in making decisions regarding the use or not, as the availability of these ingredients usually fluctuates during the year, due to the seasonality of the industrialization process. ”, Highlights Benatti.

According to the Union of the Sugarcane Industry (Unica) Brazil will need 100 new ethanol plants by 2020 to meet the internal demand for fuel. According to the National Supply Company (Conab), the supply of corn in Brazil is higher than domestic consumption, which could make it an excellent product for ethanol.

“There are already industries that use corn for ethanol production and they offer DDG to the market, mainly in the Midwest region. Therefore, research in the country using DDG in the feeding of ruminants is important. It is necessary to think about the expansion of this agro-industrial segment and the consequent increase in the offer of this co-product ”, points out Benatti.

Source: Agrolink