J. Anim Sci.
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

J. Anim Sci. 1986. 62:412-421.
© 1986 American Society of Animal Science
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Lindemann, M. D.
Right arrow Articles by Moore, R. J.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Lindemann, M. D.
Right arrow Articles by Moore, R. J.

Digestibility and Feeding Value of Peanut Hulls for Swine

M. D. Lindemann, E. T. Kornegay and R. J. Moore

Virginia Polytechnic Institute and State University1, 2,, Blacksburg 24061

Abstract

Twenty-four crossbred gilts averaging 72 ± .7 kg were used in two balance trials to determine the digestibility of various nutrient components of peanut hulls. The peanut hulls analyzed (%): nitrogen, 1.44; neutral detergent fiber, 63.6; acid detergent fiber 56.3; cellulose, 45.5; hemi-cellulose, 7.5 and lignin, 7.7. They contained .24% Ca, .09% P, .09% Mg, .25% K, 295 ppm Fe, 48 ppm Na, 34 ppm Mn, 24 ppm Zn and 14 ppm Cu. The gross energy of the hulls was 4,380 kcal/kg. As peanut hulls were substituted for the basal diet (7.5, 15 or 30%) digestion coefficients for dry matter, nitrogen, energy, neutral detergent fiber, lignin, hemicellulose and ash were decreased (P<.001). Net retention of Ca, P, Na, Mn and Zn was reduced (P<.02) with increasing levels of peanut hulls. Reductions in Na, Mn and Zn retentions were evident, however, only when peanut hulls exceeded 7.5% of the diet. The estimated digestibilities of the components of peanut hulls, calculated by regression utilizing the percentage of each component in the total diet supplied by peanut hulls, were (%): dry matter, 28.8; nitrogen, 29.6; energy, 32.5; neutral detergent fiber, 14.9; acid detergent fiber, 16.4; lignin, 19.8; cellulose, 19.5 and hemicellulose, .0. Two feeding trials, utilizing 120 crossbred pigs, were conducted to evaluate the effects of peanut hulls on growth performance of swine. Peanut hulls were added at 0, 7.5, 15.0 and 22.5% to a 14.8% crude protein corn-soybean meal grower diet (29 to 60 kg) and a 13.8% crude protein finisher diet (60 to 99 kg). There were no differences (P>.05) in daily gain during either period of the trials due to the addition of peanut hulls to the diet. The maintenance of similar gains was accomplished by linear increases in daily feed intake during both the growing (P<.05) and finishing period (P<.001). Both the unground and ground peanut hulls flowed poorly and were difficult to handle with conventional equipment.

Footnotes

1 Dept. of Anim. Sci.

2 Appreciation is expressed to C. E. Babb, W. F. Ashley and G. Ball for care and handling of the pigs, to H. S. Bartlett for laboratory assistance and data analysis and C. Crowder for typing the manuscript. Appreciation is also expressed to Birdsong Peanuts, Mechanic St., Franklin, VA 23851 for supplying the peanut hulls used in these trials.






HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1986 by the American Society of Animal Science.