Application of the cornell net carbohydrate and protein system to evaluate the quality of early and late maturing oats

In order to evaluate the nutritional value of early and late maturing oat (Avena sativa) varieties during different growth periods, the cornell net carbohydrate and protein system (CNCPS) was used to measure the protein and carbohydrate nutrients. and the content of these components during each A. sativa growth period was analyzed. The milk-filling stage showed the highest proportion of available protein in both varieties, and the proportion of structural carbohydrate was highest during the flowering stage. However, the degradable fiber content was highest during the milk-filling stage. Comparing the content of each component in each growth stage, it was found that the degradable protein content of late maturing oats was higher than that of early maturing oats, whereas the content of non-degradable protein was lower. The available carbohydrate content of late maturing oats was also higher than that of early maturing oats. It was concluded that the two varieties of oats have higher utilization values when harvested at the filling stage, and the quality of late maturing oats is better than early maturing oats for forage feeding and roughage preparation.