Masters Theses

Date of Award

3-1978

Degree Type

Thesis

Degree Name

Master of Science

Major

Animal Science

Major Professor

J.W. Holloway

Abstract

Conservative estimates indicate that 1.5 million tons of potential livestock feed could be realized yearly from corn and soybean residue and cotton gin trash in the state of Tennessee. The purpose of this research was: (1) to compare the feeding value of corn stalklage, dry corn stover, NH³-treated corn stover and NaOH-treated corn stalklage; and (2) to compare the feeding value of cotton gin trash and soybean stalk residue. The results of experiment I indicated that dry corn stover harvested in large round bales, supplemented with soybean meal, salt, dicalcium phosphate and vitamin A provides adequate nutrition for the mature dry pregnant beef cow. The failure of NH³ treatment of corn stover to significantly alter the plant variables considered indicated that this treatment is probably not feasible. Storing the stover as stalklage reduced its feeding value, probably as a result of poor packing and fermentation. NaOH addition at ensiling time apparently increased the digestibility of the stover but problems encountered with the feeding of the material overrode any advantage gained. The results of experiment II indicated that soybean stalk residue and cotton gin trash, when supplemented with protein blocks and minerals, apparently provided adequate amounts of nutrients for mature dry pregnant beef cows. Two cows being fed soybean stalk residue died of veterinary diagnosed mycotoxin poisoning.

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