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Crop Science Abstract -

Effect of Genotype and Tannin on Dry Matter Digestibility in Sericea Lespedeza1

 

This article in CS

  1. Vol. 10 No. 2, p. 200-202
     
    Received: Oct 19, 1969


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doi:10.2135/cropsci1970.0011183X001000020026x
  1. E. D. Donnelly and
  2. W. B. Anthony2

Abstract

Abstract

Dry matter digestibility (DDM) was determined the in vivo nylon bag technique on two cuttings of low- and high-tannin sericea plants (Lespedeza cuneata [Dumont] G. Don). Low-tannin sericea was higher in DDM than normal or high-tannin sericea. Differences in DDM were indicated among low- and high-tannin genotypes. Low-tannin plants increased in tannin content relatively little from the first to the second cutting compared to high-tannin plants. The second cutting of low- and high-tannin plants averaged as high in DDM as the first cutting. Tannin and DDM were negatively correlated only when low- and high-tannin plants were combined except for the second cutting of low-tannin plants. Data indicate a tannin threshold in sericea which is critical in relation to DDM.

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