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The aim of the test was to assess the nutrient composition and carbohydrate composition of more than 20 commonly used equine animal feeds in Southland. The results show that comparing the conventional composition of the 15 roughages measured. The CP content ranged from 3.31% to 19.43%, the EE content ranged from 1.23% to 2.94%, and the NDIP content ranged from 2.21% to 12.96%. Comparing the conventional composition of the five energy feeds, the CP content ranged from 5.66% to 15.63%, the EE content ranged from 1.60% to 4.08%, and the NDIP content ranged from 2.51% to 8.33%. Comparing the conventional composition of the four protein feeds, the CP content ranged from 23.75% to 46.32%, the EE content ranged from 1.26% to 15.99%, and the NDIP content ranged from 7.95% to 14.14%. Comparing 24 feedstuffs in terms of carbohydrate fraction, overall the CHO-H content of energy feeds was higher than protein feeds and most roughage, the CHO-FR content of energy feeds was higher than roughages and protein feeds, and the CHO-FS content of roughage was higher than that of energy feeds and higher than that of some protein feeds. Analysis of feeds according to the digestive characteristics of the equine genus, feeds with higher ratios on CHO-H and CHO-FR content are digested more quickly, thus the more rapidly digested of the roughage, energy and protein feeds are whole plant maize silage, dates and soya meal respectively. [ABSTRACT FROM AUTHOR]