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Useful variation in in vitro digestibility within perennial ryegrass

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Abstract

In vitro dry matter digestibility (DMD) and dry matter yield (DMY) of herbage from plots sown with three selected perennial ryegrass varieties with similar heading dates (Ba11778, Talbot and Gator) under a range of harvesting frequencies (2, 3, 4 and 5-weekly harvests) were compared over two harvest years (1994 and 1995). Varieties varied in mean percentage DMD over all harvests and harvesting frequencies by 3.4 and 3.5 units in 1994 and 1995 respectively. Varietal ranking in mean DMD over all harvests was the same under each harvesting frequency in both years: Ba11778 being the highest, Gator the lowest and Talbot intermediate. In 1995, Gator had a higher proportion of unsown species in the herbage than both Ba11778 and Talbot but this was only a minor factor contributing to the differences among the varieties in mean DMD over all harvests. Although varieties consistently ranked in the same order of mean DMD over all harvesting frequencies during 13 5-week periods, the range among varieties varied from less than 1 unit to 8.6 units. This range was greatest in mid-season of each year when mean DMD over all varieties was lowest. The minimum mean DMD over all harvesting frequencies during both years was 75.5%, 70.9% and 66.8% for Ba11778, Talbot and Gator respectively. The most digestible variety Ba11778 also had higher annual DMY than the other two varieties in both harvest years and under all four harvesting frequencies. These results indicate that there is sufficient useful genetic variation for DMD within perennial ryegrass to justify breeding for the trait and its routine assessment in official variety trials.

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References

  • Beerpoot, L.J., W. Bouter & J.A. Dijkstra, 1994. Breeding for improved digestibility in perennial ryegrass. Proc Eucarpia Fodder Crops Section for 1994: 237–245.

  • Davies, D.A., M. Fothergill & C.T. Morgan, 1993. Assessment of contrasting perennial ryegrasses, with and without white clover, under continuous sheep stocking in the uplands. 5. Herbage production, quality and intake in years 4–6. Grass and Forage Sci 48: 213–222.

    Google Scholar 

  • Deinum, B., 1966. Influence of some climatological factors on the chemical composition and feeding value of herbage. Proc 10th Int Grassld Congr: 415–418.

  • Dent, J.W. & D.T.A. Aldrich, 1966. The in vitro digestibility of herbage species and varieties and its relationship with cutting treatment, stage of growth and chemical composition. Proc 10th Int Grassld Congr: 419–424.

  • De Vliegher, A. & L. Carlier, 1994. Digestibility as criterium in variety testing trials. Proc Eucarpia Fodder Crops Section for 1994: 253–260.

  • Frame, J., 1991. Herbage production and quality of a range of secondary grass species at five rates of fertiliser application. Grass and Forage Sci 46: 139–151.

    Google Scholar 

  • Hill, G.M., G.W. Burton & P.R. Utley, 1994. Forage quality and steer performance on Tifton 78 and Coastal bermudagrass populations. Proc 17th Int Grassld Congr: 870–871.

  • Hopkins, A., J. Wainright, P.J. Murray, P.J. Bowling & M. Webb, 1988. 1986 survey of upland grassland in England and Wales: changes in age structure and botanical composition since 1970–72 in relation to management and physical features. Gass and Forage Sci 43: 185–196.

    Google Scholar 

  • Jones, D.I.H. & M.V. Hayward, 1975. The effect of pepsin pre-treatment of herbage on the prediction of dry matter digestibility from solubility in fungal cellulase solution. J Sci Food Agric 26: 711–718.

    Google Scholar 

  • Minson, D.J., 1981. Characteristics of the nutritionally ideal grazing plant. In: J.L. Wheeler & R.D. Mochine (Eds) Forage Evaluation: Concepts and Techniques pp 543–551. CSIRO.

  • Munro, J.M.M., D.A. Davies, W.B. Evans & R.V. Scurlock, 1992. Animal production evaluation of herbage varieties. 1. Comparison of Aurora with Frances, Talbot and Melle perennial ryegrass when grown alone and with clover. Grass and Forage Sci 47: 259–273.

    Google Scholar 

  • Posselt, U.K., 1994. Selection parameters of quality traits in perennial ryegrass. Proc Eucarpia Fodder Crops Section for 1994: 129–135.

  • Reheul, D. & A. Ghesquiere, 1994. Breeding for improved digestibility in perennial ryegrass. Proc Eucarpia Fodder Crops Section for 1994: 225–236.

  • Wheeler, J.L. & J.L. Corbett, 1989. Criteria for breeding forages of improved feeding value, results of the Delphi survey. Grass and Forage Sci 44: 77–83.

    Google Scholar 

  • Wilkins, P.W., 1995. Independence of dry matter yield and leaf yield among perennial ryegrass varieties differing in seasonal yield distribution. Grass and Forage Sci 50: 155–161.

    Google Scholar 

  • Wilkins, P.W. & R.W. Davies, 1994. Progress in combining high dry matter yield with reduced flowering and improved digestibility in perennial ryegrass. Proc Eucarpia Fodder Crops Section for 1994: 247–252.

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  1. Institute of Grassland and Environmental Research, Plas Gogerddan, Aberystwyth, SY23 3EB, U.K

    P.W. Wilkins

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  1. P.W. Wilkins
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Wilkins, P. Useful variation in in vitro digestibility within perennial ryegrass. Euphytica 93, 249–255 (1997). https://doi.org/10.1023/A:1002910707241

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