Tannin and Palatability in Sericea Lespedeza, L. Cuneata

Wilkins, H. L.; Bates, R. P.; Henson, Paul R.; Lindahl, Ivan L.; Davis, R. E.

doi:10.2134/agronj1953.00021962004500070022x

Cited by 23 publications

(13 citation statements)

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“…al. 42, it does not seem to have been suggested that they may also render the leaf proteins, especially in fodder which has been dried, less digestible even though this would have an important effect on the fodder value of such leaves. Some herbivorous animals do eat plant material in which the protein-complex-forming system is present.…”

Section: Discussionmentioning

confidence: 99%

Further evidence for the importance of residual leaf protein complexes in litter decomposition and the supply of nitrogen for plant growth

Handley¹

1961

Plant Soil

116

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Section: Discussionmentioning

confidence: 99%

Further evidence for the importance of residual leaf protein complexes in litter decomposition and the supply of nitrogen for plant growth

Handley¹

1961

Plant Soil

116

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“…Older varieties of SL contain high concentrations of condensed tannins (CT) that decrease both palatability and animal performance (Wilkins et al, 1953;Donnelly et al, 1971). These varieties were introduced in the tallgrass prairie region of the Great Plains and became invasive because of their competitive character-istics and high concentrations of CT, which deter cattle grazing (Ohlenbush et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

Supplemental polyethylene glycol affects intake of and preference for sericea lespedeza by cattle12

Mantz

Villalba

Provenza

2009

Journal of Animal Science

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We tested the hypothesis that supplemental polyethylene glycol (PEG), a polymer that neutralizes the effects of tannins, would increase intake and preference of cattle for fresh-cut sericea lespedeza (SL; Lespedeza cuneata), a legume with high concentrations of condensed tannins. Sixteen crossbred steers (initial BW of 249 +/- 6.6 kg) were randomly assigned to 2 treatments: 1) grain supplement with PEG (PEG-S) and 2) grain supplement without PEG (control). To assess intake, we conducted a trial with 6 sample periods, each 6 d in duration, with steers fed SL and prairie hay (PH) in separate meals. Steers were fasted overnight and fed their respective supplements (with and without PEG) at 0800 h. Animals were then offered fresh-cut SL from 1050 to 1550 h, PH was fed from 1600 to 2000 h, and they were without food from 2000 to 0800 h the next day. To assess preference, we conducted 1-d tests in which steers had simultaneous access to SL and PH on the day following periods 2 to 6. As with the intake experiment, steers were fasted overnight and fed their respective supplements at 0800 h, but from 1050 to 1250 h all steers had access to SL and PH simultaneously. We weighed steers before and at the completion of the study and calculated ADG. Steers treated with PEG consumed more SL per unit of BW than control steers in periods 2 to 6 (period x treatment interaction, P < 0.001). In contrast, controls consumed more PH than steers given PEG (period x treatment x day interaction, P = 0.009). The PEG-S steers consumed more total DM (SL + PH) than controls in periods 3, 5, and 6 but not in periods 1, 2, and 4 (period x treatment interaction, P = 0.004). Sericea lespedeza intake as a percentage of total DMI was greater for the PEG-S steers every day except d 1 and 2 of period 1 (period x treatment x day interaction, P = 0.03). Averaged across the 5 preference tests, PEG-S steers selected a greater proportion of SL than did control steers (39 vs. 9%), and the magnitude of the difference was greater in the later tests (test x treatment interaction, P = 0.004). The PEG-S steers had greater ADG than controls (0.44 vs. 0.24 kg/d; P = 0.005). Our results indicate PEG increases intake of and preference for SL and suggest that PEG supplementation of cattle may increase intake of SL and improve ADG in pastures that contain SL.

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“…An introduced legume that thrives in soils of low fertility, older varieties of sericea introduced in the tallgrass prairie region of the Great Plains became invasive because of their competitive characteristics that are, in part, attributable to high concentrations of condensed tannins (CTs), which discourage grazing and reduce performance of cattle. [1][2][3] CTs in concentrations below 50-60 g CT/kg dry matter (DM) benefit ruminants by reducing incidence of bloat and improving nitrogen balance. 4,5 Higher concentrations of CT negatively affect digestive processes, 6 rumen microbes, 7 and gut mucosa, 8 which collectively deter foraging.…”

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confidence: 99%