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The Digestibility of Forage on Burned and Non-Burned Bluestem Pasture as Determined with Grazing Animals¹

Kansas State University,³ Manhattan

Abstract

Four digestion trials were conducted with 32 steers on pasture to determine the effect of spring burning (April 1–15) on digestibility of bluestem-pasture vegetation. Apparent digestibility of crude fiber and of dry matter was increased by burning in each trial, and ether extract digestibility was increased in three of the four trials. Burning increased digestibility of nitrogen-free extract significantly in only two of the four trials. Digestibility of protein seemed not to be greatly affected by burning since digestibility was increased in only one of four trials; however, nonsignificant increases in digestibility occurred in the other three trials.

¹ Contribution No. 233, Department of Animal Husbandry, No. 650, Department of Agronomy and No. 590, Department of Chemistry, Kansas Agricultural Experiment Station, Manhattan. This article is a portion of the senior author's Ph.D. dissertation submitted to Texas A&M College.

² Department of Range and Forestry, Texas A&M College, College Station.

³ Departments of Animal Husbandry, Agronomy and Chemistry.