Abstract

The southern cósahui (Krameria erecta) is a perennial shrub that is found in arid and semi-arid areas of the states of Sonora, Sinaloa, Chihuahua and Baja California Norte. As it is a plant that is appealing to domestic and wild animals, the nutritional value of Krameria erecta was determined, located in a type of tree-growing scrubland of the State of Sonora, evaluating the collection of four seasons of the year, in four sites of 2,500 m2 each one. The results show that there are significant differences between collection times in the crude protein content (7.46 to 13.42 %). The contents of ethereal extract were different between the collection sites and time (p <0.05) on the other hand they also presented significant differences between collection time and sites (p <0.05) in dry matter with 71.2 to 87.3%, except in winter and spring, in the same way there were significant differences in humidity (12.7 to 28.8%), in ashes there were significant differences in the collection time (p <0.05) from 7.41 to 13.3%, in terms of raw fiber differences were shown significant at the time of collection but not between sites with 23.78 to 32.82%, in calcium there was no significant difference between in the summer, autumn and winter harvest with values of 0.05 to 1.33% and phosphorus also showed significant differences between the time of collection (p <0.05) but not between sites with 0.06 to 0.09%.

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