Soybean Improves Efficiency of Nutrient Use
As soybean ratio in diet decreases, so does productive energy.
For a select two or three ingredients, while the net energy might be comparable, other properties of those ingredients might impact the value of the total diet beyond what would be expected from net energy (i.e., productive energy).
In the experiments, net energy of the diet was kept the same by replacing soybean with corn at the proper net energy ratio. However, the negative impact on feed conversion when using too high a ratio of synthetic amino acids indicates that soybean plays a crucial role in performance by providing a higher amount of productive energy for growth.
This held true for every feed phase, in which there was found a minimum diet soybean level to achieve maximal feed conversion efficiency and growth.
“We know soybean meal contains several biologically active compounds that may be important for growth [but] further research is needed to understand…why we can't feed high levels of synthetic amino acids, especially in late finishing diets.”
- Aaron Gaines, Managing Partner, Ani-Tek
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