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CNCPS Feed Analyses - Initial Results
High Fiber and Starch Digestibility in Domestic Samples
CNCPS - The Difference
Sano Labor offers analyses according to the CNCPS standard and operates according to the strict and high-quality guidelines of the American company CVAS. What do the results of the domestic samples tell us?
In addition to the pure nutrient content of the feed, CNCPS also examines its availability in the digestive tract. Only with this detailed insight into your feed can they be optimally utilized and cost-effective rations, tailored to the health and performance of the animals, be created.
Figures 1 to 3 show the evaluations of the received corn and grass silages since the opening of Sano Laboratory in September 2018. The particularity of the CNCPS analysis is the representation of NDF and starch digestibility, which significantly impact ration formulation. High NDF digestibility enables the targeted use of concentrate feeds in the ration. Knowing the level of starch content and starch digestibility greatly affects the selection of other energy components in the ration.
On average, the fiber components in the received grass silage samples are very good and highly digestible (Figure 1).
These values represent NDFD30, NDFD120, and NDFD240, which indicate the digestibility after 30, 120, and 240 hours. On average, the aNDFom (ash-free NDF) content of the silages was 47 percent. The NDF digestibility of the fiber components after 30 hours averaged just under 63 percent and increased to approximately 74 percent after 240 hours.
On average, the fiber components in the received corn silage samples are very good and highly digestible (Figure 2).
For the received corn silage analyses, the average aNDF was around 40 percent. With an NDF digestibility of nearly 63 percent after 30 hours and 77 percent after 240 hours, the corn silages also exhibit good fiber digestibility.
On average, the starch content of all received samples was about 30 percent. They have a starch digestibility of approximately 75 percent (Figure 3).
In Figure 3, the starch content and starch digestibility after seven hours are presented. In 2018, the starch content was around 30 percent. However, it is important to note the variability in this year's forage harvest.
There are significant regional differences in starch content in the silage, ranging from 8 to over 42 percent. In some cases, no cobs were even formed. Looking at the digestibility of starch, an average of 75 percent digestibility after seven hours is good. However, it is also important to consider the variability in digestibility, which ranges from 53 to 87 percent. The digestibility of starch plays a crucial role in determining the choice of additional energy components in the feed ration. This value will change over the storage period, with starch digestibility increasing. The highly variable starch content in the silages highlights the importance of analyzing your own silages to calculate optimal rations.
However, these values do not provide information about your forage inventory. It is essential to analyze your own feed ingredients and not rely solely on table values when calculating rations. Only by doing so can you calculate an optimal ration for your operation.
