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Effects of ensilage of grass on performance and nutrient utilization by dairy cattle 2. Nutrient metabolism and rumen fermentation

Published online by Cambridge University Press:  02 September 2010

A. Cushnahan ,
C. S. Mayne  and
E. F. Unsworth
A. Cushnahan
Affiliation:
Agricultural Research Institute of Northern Ireland, Hillsborough, Co Down BT26 6DR
C. S. Mayne
Affiliation:
Agricultural Research Institute of Northern Ireland, Hillsborough, Co Down BT26 6DR
E. F. Unsworth
Affiliation:
Agricultural Research Institute of Northern Ireland, Hillsborough, Co Down BT26 6DR
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Abstract

A study was carried out to examine the effects of ensiling and pattern of silage fermentation on nitrogen and energy utilization, rumen fermentation and rumen degradation characteristics of forage by lactating dairy cows. Six nonfistulated dairy cows and three rumen fistulated dairy cows were offered fresh grass (G) or grass silage produced from the same sward which had undergone either an extensive (E) or restricted (R) fermentation. Animals offered extensively fermented silage had liigher urinary nitrogen (N) outputs (expressed as a proportion of N intake) than those offered fresh grass (P < 0·05). Corresponding values for animals offered restricted fermented silage were intermediate between those offered grass and extensively fermented silage. Animals offered fresh grass and restricted fermented silage also had higher methane energy losses (P < 0·05), than those offered extensively fermented silage. The ensiling of grass had little effect on metabolizable energy (ME) intake or on the efficiency of utilization of ME for lactation (k1). Animals offered extensively fermented silage had higher proportions of propionate and lower proportions of acetate than those offered fresh grass or restricted fermented silage (P < 0·001). Ensiling resulted in an increase in the soluble (a) fraction and a reduction in the potentially degradable (b) fraction of N.

Keywords

dairy coivsenergy consumptionnitrogenrumen fermentationsilage making

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Type
Research Article
Information
Animal Science , Volume 60 , Issue 3 , June 1995 , pp. 347 - 359
Copyright
Copyright © British Society of Animal Science 1995

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References

Agricultural Research Council. 1980. The nutrient requirements of ruminant livestock. Commonwealth Agricultural Bureaux, Slough.Google Scholar
Agricultural Research Council. 1984. The nutrient requirements of ruminant livestock. Suppl. 1. Commonwealth Agricultural Bureaux, Oxford.Google Scholar
Alderman, G., Collins, F. C. and Dougall, H. W. 1971. Laboratory methods of predicting feeding value of silage. Journal of the British Grassland Society 26: 109–111.CrossRefGoogle Scholar
Anderson, R. K. and Jackson, N. 1971. Volatile fatty acids in the rumen of sheep fed grass, unwilted and wilted silage, and barn dried hay. Journal of Agricultural Science, Cambridge 77: 483–490.CrossRefGoogle Scholar
Bhattacharya, A. N. and Warner, R. G. 1967. Rumen pH as a factor for controlling feed intake in ruminants. Journal of Dairy Science 50: 1116–1119.CrossRefGoogle ScholarPubMed
Blaxter, K. L. and Wainman, F. W. 1964. The utilization of the energy of different rations by sheep and cattle for maintenance and for fattening. Journal of Agricultural Science, Cambridge 63: 113–128.CrossRefGoogle Scholar
Bosch, M. W., Tamminga, S., Post, G., Leffering, C. P. and Muylaert, J. M. 1992. Influence of stage of maturity of grass silages on digestion processes in dairy cows. 1. Composition, nylon bag degradation rates, fermentation characteristics, digestibility and intake. Livestock Production Science 32: 245–264.CrossRefGoogle Scholar
Brookes, I. M. and Maguire, M. F. 1973. Utilisation of water-soluble nitrogen in silage by sheep. Irish Journal of Agricultural Research 12: 47–53.Google Scholar
Chamberlain, D. G., Robertson, S. and Choung, J. J. 1993. Sugars versus starch as supplements to grass silage: effects on ruminal fermentation and the supply of microbial protein to the small intestine, estimated from the urinary excretion of purine derivatives in sheep. Journal of the Science of Food and Agriculture 63: 189–194.CrossRefGoogle Scholar
Chamberlain, D. G., Thomas, P. C. and Anderson, F. J. 1983. Volatile fatty acid proportions and lactic acid metabolism in the rumen in sheep and cattle receiving silage diets, journal of Agricultural Science, Cambridge 101: 47–58.CrossRefGoogle Scholar
Charmley, E., McQueen, R. E. and Veira, D. M. 1994. Influence of carboxylic salts on silage conservation, and voluntary intake and growth of steers given lucerne silage. Animal Production 58: 221–229.CrossRefGoogle Scholar
Cushnahan, A. and Gordon, F. J. 1995. The effects of grass preservation on intake by sheep, digestibility and rumen degradation characteristics. Animal Science 60: 429–438.CrossRefGoogle Scholar
Cushnahan, A. and Mayne, C. S. 1995. Effects of ensilage of grass on performance and nutrient utilization by dairy cattle. 1. Food intake and milk production. Animal Science 60: 337–345.CrossRefGoogle Scholar
Doherty, J. G. and Mayne, C. S. 1992. The effects of supplementary soluble carbohydrate or lactic acid on ruminal fermentation parameters in dairy cows offered restricted or extensively fermented silages. Proceedings of the third research conference, British Grassland Society, Greenmount, pp. 151–152.Google Scholar
Donaldson, E. and Edwards, R. A. 1976. Feeding value of silage: silages made from freshly cut grass, wilted grass and formic acid treated wilted grass. Journal of the Science of Food and Agriculture 27: 536–544.CrossRefGoogle ScholarPubMed
Flatt, W. P., Moe, P. W., Moore, L. A., Hooven, N. W., Lehmann, R. P., Orskov, E. R. and Hemken, R. W. 1969a. Energy utilization by high producing dairy cows. I. Experimental design, ration composition, digestibility data and animal performance during energy balance trials. In Energy metabolism of farm animals (ed. Blaxter, K. L., Thorbek, G. and Kielanowski, J.), pp. 221–234. Oriel Press, Newcastle-upon-Tyne.Google Scholar
Flatt, W. P., Moe, P. W., Munson, A. W. and Cooper, T. 1969b. Energy utilization by high producing dairy cows. II. Summary of energy balance experiments with lactating Holstein cows. In Energy metabolism of farm animals (ed. Blaxter, K. L., Thorbek, G. and Kielanowski, J.), pp. 235–249. Oriel Press, Newcastle-upon- Tyne.Google Scholar
Fujita, H. 1976. Length of storage period of grass silage as a regulating factor in the utilization of silage nitrogen in ruminants. Japanese Journal of Zootechnical Science 47: 224–232.Google Scholar
Gordon, F. J. 1989. A further study on the evaluation through lactating cattle of a bacterial inoculant as an additive for grass silage. Grass and Forage Science 44: 353–357.CrossRefGoogle Scholar
Gordon, F. J., Porter, M. G., Mayne, C. S., Unsworth, E. F. and Kilpatrick, D. J. 1995. Effect of forage digestibility and type of concentrate on nutrient utilization by lactating dairy cattle. Journal of Dairy Research 62: 15–27.CrossRefGoogle ScholarPubMed
Grenet, E. 1983. Utilization of grass-silage nitrogen by growing sheep. Journal of Agricultural Science, Cambridge 100: 43–62.CrossRefGoogle Scholar
Holter, J. B., Jones, L. A., Colovos, N. F. and Urban, W. E. 1972. Calorific value of acetate and propionate for lactating dairy cows. Journal of Dairy Science 55: 1757–1762.CrossRefGoogle Scholar
Huhtanen, P. 1987. The effects of intraruminal infusions of sucrose or xylose on nitrogen and fibre digestion in the rumen and intestines of cattle receiving diets of grass silage and barley. Journal of Agricultural Science in Finland 59: 405–424.Google Scholar
Jaakkola, S. and Huhtanen, P. 1992. Rumen fermentation and microbial protein synthesis in cattle given intraruminal infusions of lactic acid with a grass silage based diet. Journal of Agricultural Science, Cambridge 119: 411–418.CrossRefGoogle Scholar
Keady, T. W. J. and Murphy, J. J. 1993. The effects of ensiling on the intake of herbage and milk production by lactating dairy cows. Animal Production 56: 423–424 (abstr.).Google Scholar
McDonald, I. 1981. A revised model for the estimation of protein degradability in the rumen. Journal of Agricultural Science, Cambridge 96: 251–252.CrossRefGoogle Scholar
McDonald, P. and Edwards, R. A. 1976. The influence of conservation methods on digestion and utilization of forages by ruminants. Proceedings of the Nutrition Society 35: 201–211.CrossRefGoogle ScholarPubMed
McDonald, P., Henderson, N. and Heron, S. 1991. The biochemistry of silage. 2nd ed. Chalcombe Publications.Google Scholar
McGinn, R. and McLellan, A. R. 1986. Energy metabolism in lambs fed silage diets with sucrose or a growth promoter. Animal Feed Science and Technology 16: 203–213.CrossRefGoogle Scholar
Martin, P. A., Chamberlain, D. G., Robertson, S. and Hirst, D. 1994. Rumen fermentation patterns in sheep receiving silages of different chemical composition supplemented with concentrates rich in starch or in digestible fibre, journal of Agricultural Science, Cambridge 122: 145–150.CrossRefGoogle Scholar
Mayne, C. S. and Gordon, F. J. 1984. The effect of type of concentrate and level of concentrate feeding on milk production. Animal Production 39: 65–76.Google Scholar
Mehrez, A. Z. and ørskov, E. R. 1977. A study of the artificial bag technique for determining the digestibility of feeds in the rumen, Journal of Agricultural Science, Cambridge 88: 645–650.CrossRefGoogle Scholar
Ministry of Agriculture, Fisheries and Food. 1984. Energy allowances and feeding systems for ruminants. Reference book 433. Her Majesty's Stationery Office, London.Google Scholar
Moloney, A. P. and O'Kiely, P. 1994. Rumen fermentation and degradability in steers offered grass silage made without an additive, with formic acid or with a partially neutralised blend of aliphatic organic acids. Irish journal of Agricultural and Food Research 33: 11–24.Google Scholar
Morgan, D. L. and L'Estrange, J. L. 1977. Voluntary feed intake of sheep when lactic acid is administered in the feed or intraruminally. journal of the British Grassland Society 32: 217–224.CrossRefGoogle Scholar
Moss, A. R., Deaville, E. R. and Givens, D. I. 1994. Effect of supplementing grass silage with sugar-beet feed on methane production by sheep. Animal Production 58: 440 (abstr.).Google Scholar
Nocek, J. E. and Grant, A. L. 1987. Characterization of in situ nitrogen and fibre digestion and bacterial nitrogen contamination of hay crop forages preserved at different dry matter percentages, journal of Animal Science 64: 552–564.CrossRefGoogle ScholarPubMed
ørskov, E. R., Flatt, W. P., Moe, P. W., Munson, A. W., Hemken, R. W. and Katz, J. 1969. The influence of ruminal infusion of volatile fatty acids on milk yield and composition and on energy utilization by lactating cows. British journal of Nutrition 23: 443–453.CrossRefGoogle ScholarPubMed
ørskov, E. R., Hughes-Jones, M. and McDonald, I. 1981. Degradability of protein supplements and utilisation of undegraded protein by high producing dairy cows. In Recent advances in animal nutrition (ed. Haresign, W.), pp. 17–30. Butterworths, London.Google Scholar
ørskov, E. R. and McDonald, I. 1979. The estimation of protein degradability in the rumen from incubation measurements weighted according to rate of passage. Journal of Agricultural Science, Cambridge 92: 499–503.CrossRefGoogle Scholar
Petit, H. V. and Tremblay, G. F. 1992. In situ degradability of fresh grass and grass conserved under different harvesting methods, journal of Dairy Science 75: 774–781.CrossRefGoogle ScholarPubMed
Rogers, G. L., Bryant, A. M., Jury, K. E. and Hutton, J. B. 1979. Silage and dairy cow production. 1. Digestible energy intake and yield and composition of milk of cows fed pasture and pasture silages. New Zealand journal of Agricultural Research 22: 511–522.CrossRefGoogle Scholar
Russell, J. B. 1984. Limits to the manipulation of rumen fermentation. Proceedings of the Cornell Nutrition Conference, pp. 87–94.Google Scholar
Sutton, J. D., Broster, W. H.Schuller, E., Napper, D. J., Broster, V. J. and Bines, J. A. 1988. Influence of plane of nutrition and diet composition on rumen fermentation and energy utilization by dairy cows, journal of Agricultural Science, Cambridge 110: 261–270.CrossRefGoogle Scholar
Unsworth, E. F. 1991. The efficiency of utilization of metabolizable energy for lactation from grass silage-based diets. Proceedings of the twelfth symposium on energy metabolism of farm animals, Kartause Ittingen, Switzerland, European Association for Animal Production publication no. 58, pp. 329–332.Google Scholar
Unsworth, E. F. and Mayne, C. S. 1993. The energy balance of lactating dairy cows offered restricted fermentation or fermented grass silage. Proceedings of the tenth international conference on silage research, Dublin, pp. 180–181.Google Scholar
Unsworth, E. F., Mayne, C. S., Cushnahan, A. and Gordon, F. J. 1994. The energy utilization of grass silage diets by lactating dairy cows. Proceedings of the thirteenth symposium on energy metabolism of farm animals, Mojacar, Spain In press.Google Scholar
Unsworth, E. F., Poots, R. E. and Park, R. S. 1992. Methane production from grass ssilage and silage-based diets by sheep and cattle. Proceedings of the third research conference, British Grassland Society, Greenmount, pp. 149–150.Google Scholar
Van Es, A. J. H. 1969. The efficiency of the utilisation of the metabolisable energy by lactating cows fed concentrates and either hay, silage or hay and hay — or strawpellets. Proceedings of the third general meeting of the European Grassland Federation, pp. 275–281.Google Scholar
Vanhatalo, A., Varvikko, T. and Aronen, I. 1992. The effect of type of additive on rumen fermentation and digestion of grass silage in cattle. Agricultural Science in Finland 1: 163–175.Google Scholar
Vik-Mo, L. 1989. Degradability of forages in sacco. 1. Grass crops and silages after oven and freeze drying. Ada Agriculturae Scandinavica 39: 43–52.CrossRefGoogle Scholar
Whitelaw, F. J., Eadie, J. M., Bruce, L. A. and Shand, W. J. 1984. Methane production in faunated and ciliate-free cattle and its relationship with rumen volatile fatty acid proportions. British journal of Nutrition 52: 261–275.CrossRefGoogle ScholarPubMed
Wolin, M. J. J. 1960. A theoretical rumen fermentation balance, journal of Dairy Science 43: 1452–1459.CrossRefGoogle Scholar