Hostname: page-component-586b7cd67f-tf8b9 Total loading time: 0 Render date: 2024-11-23T03:35:42.787Z Has data issue: false hasContentIssue false

Inclusion of white clover in strip-grazed perennial ryegrass swards: herbage intake and milk yield of dairy cows at different ages of sward regrowth

Published online by Cambridge University Press:  18 August 2016

H. M. N. Ribeiro Filho
Affiliation:
UMR INRA/ENSAR Production du Lait, 35590 Saint Gilles, France
R. Delagarde*
Affiliation:
UMR INRA/ENSAR Production du Lait, 35590 Saint Gilles, France
J. L. Peyraud
Affiliation:
UMR INRA/ENSAR Production du Lait, 35590 Saint Gilles, France
*
Corresponding author. E-mail:[email protected]
Get access

Abstract

The introduction of legumes in grass-based swards provides some economic and agronomic advantages, often allowing an increase in the performance of grazing ruminants. The aim of this study was to obtain a better quantification of the nutritional benefits to dairy cows after introducing white clover into swards of perennial ryegrass (PRG), using two ages of regrowth. Four treatments were studied in a 2 ✕ 2 factorial design with two sward types and two ages of regrowth. The swards were either a pure perennial ryegrass sward with nitrogen (N) fertilization, or a perennial ryegrass/white clover mixture (GC) with no N fertilization. The regrowth ages were 19 and 35 days (treatments: PRG19, PRG35, GC19 and GC35). The proportion of clover in the GC swards was on average 420 g/kg dry matter (DM). Twelve late-lactation Holstein cows, fistulated at the rumen and duodenum, were used according to a 4 ✕ 4 Latin-square design with four 11-day periods. The pasture was strip-grazed with 12 kg DM per cow of herbage above 5 cm offered daily in all the treatments.

The effects of sward type and regrowth age were often additive, in particular for herbage intake and milk yield. Herbage organic matter (OM) intake, duodenal non-ammonia N (NAN) flow and milk yields were higher on the GC swards and lower on the older regrowths. Finally, the performance of the cows was similar on the PRG19 and GC35 treatments. The OM digestibility of the selected herbage as well as the duodenal nitrogen flux per kg digestible OM intake was not affected by the sward type. Ruminal fermentations were more intense with mixed swards and the youngest regrowths. The daily grazing time and the daily pattern of grazing activities were modified by the type of sward and by regrowth age. The average OM intake rate was higher on the GC swards than on the PRG swards. In this study, the nutritional advantage of introducing white clover into swards of perennial ryegrass was related to an increase in herbage intake and not to any improvement in the nutritive value of the sward.

Type
Ruminant nutrition, behaviour and production
Copyright
Copyright © British Society of Animal Science 2003

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Association Française de Normalisation. 1985. Aliments des animaux. Association Française de Normalisation, Paris, France.Google Scholar
Aufrère, J. and Demarquilly, C. 1989. Predicting organic matter digestibility of forage by two pepsin-cellulase methods. Proceedings of the 16th international grassland congress, Nice, pp. 877878.Google Scholar
Beever, D. E., Losada, H. R., Cammell, S. B., Evans, R. T. and Haines, M. J. 1986. Effect of forage species and season on nutrient digestion and supply in grazing cattle. British Journal of Nutrition 56: 209225.Google Scholar
Beever, D. E., Thomson, D. J., Ulyatt, M. J., Cammell, S. B. and Spooner, M. C. 1985. The digestion of fresh perennial ryegrass (perenne, Lolium elle, L. cv. ) and white clover (Trifolium repens L. cv. Blanca) by growing cattle fed indoors. British Journal of Nutrition 54: 763775.CrossRefGoogle ScholarPubMed
Brun, J. P., Prache, S. and Béchet, G. 1984. A portable device for eating behaviour studies. Proceedings of the fifth meeting of the European grazing workshop (ed. Armstrong, R. and Doney, J.). Hill Farming Research Organisation, Midlothian.Google Scholar
Cruickshank, G. J., Poppi, D. P. and Sykes, A. R. 1992. The intake, digestion and protein degradation of grazed herbage by early-weaned lambs. British Journal of Nutrition 68: 349364.Google Scholar
Delagarde, R., Peyraud, J. L. and Delaby, L. 1997. The effect of nitrogen fertilization level and protein supplementation on herbage intake, feeding behaviour and digestion in grazing dairy cows. Animal Feed Science and Technology 66: 165180.Google Scholar
Delagarde, R., Peyraud, J. L., Parga, J. and Ribeiro, H. 2001. Caractéristiques de la prairie avant et après un pâturage: quels indicateurs de l’ingestion chez la vache laitière? Rencontres Recherches Ruminants 8: 209212.Google Scholar
Demarquilly, C., Andrieu, J. and Weiss, P. 1981. L’ingestibilité des fourrages verts et des foins et sa prévision. In Prévision de la valeur nutritive des aliments des ruminants (ed. Jarrige, R.), pp. 155167. INRA Publications, Paris.Google Scholar
Frame, J. and Newbould, P. 1986. Agronomy of white clover. Advances in Agronomy 40: 188.CrossRefGoogle Scholar
Harris, S. L., Auldist, M. J., Clark, D. A. and Jansen, E. B. 1998. Effects of white clover content in the diet on herbage intake, milk production and milk composition of New Zealand dairy cows housed indoors. Journal of Dairy Research 65: 389400.Google Scholar
Harris, S. L., Clark, D. A., Auldist, M. J., Waugh, C. D. and Laboyrie, P. G. 1997. Optimum white clover content for dairy pastures. Proceedings of the New Zealand Grassland Association 59: 2933.Google Scholar
Institut National de la Recherche Agronomique. 1989. Ruminant nutrition: recommended allowances and feed tables (ed. Jarrige, R.). John Libbey, London.Google Scholar
Johnson, J. R. and Thomson, N. A. 1996. Effect of pasture species on milk yield and milk composition. Proceedings of the New Zealand Grassland Association 57: 151156.Google Scholar
Leach, K. A., Bax, J. A., Roberts, D. J. and Thomas, C. 2000. The establishment and performance of a dairy system based on perennial ryegrass-white clover swards compared with a system based on nitrogen fertilized grass. Biological Agriculture and Horticulture 17: 207227.Google Scholar
Mambrini, M. and Peyraud, J. L. 1994. Mean retention time in digestive tract and digestion of fresh perennial ryegrass by lactating dairy cows: influence of grass maturity and comparison with a maize silage diet. Reproduction, Nutrition, Development 34: 923.Google Scholar
Minson, D. J. 1990. Forage in ruminant nutrition. Division of Tropical Crops and Pastures, Commonwealth Scientific and Industrial Research Organisation, Queensland.Google Scholar
Parga, J., Peyraud, J. L. and Delagarde, R. 2002. Age of regrowth affects grass intake and ruminal fermentations in grazing dairy cows. Proceedings of the 19th general meeting of the European Grassland Federation, La Rochelle, France, pp. 256257.Google Scholar
Peyraud, J. L. 1993. Comparaison de la digestion du trèfle blanc et des graminées prairiales chez la vache laitière. Fourrages 135: 465473.Google Scholar
Phillips, C. J. C. and James, N. L. 1998. The effects of including white clover in perennial ryegrass swards and the height of mixed swards on the milk production, sward selection and ingestive behaviour of dairy cows. Animal Science 67: 195202.Google Scholar
Phillips, C. J. C., James, N. L. and Nyallu, H. M. 2000. The effects of forage supplements on the ingestive behaviour and production of dairy cows grazing ryegrass only or mixed ryegrass and white clover pastures. Animal Science 70: 555559.Google Scholar
Poncet, C. and Rayssiguier, Y. 1980. Effect of lactose supplement on digestion of lucerne hay by sheep. 1. Sites of organic matter and nitrogen digestion. Journal of Animal Science 51: 180185.Google Scholar
Rogers, G., Robinson, I. and Porter, R. 1980. The utilization of perennial ryegrass and white clover by lactating dairy cows. Dairy production research report, Department of Agricultural and Rural Affairs, Australia, pp. 5455.Google Scholar
Rook, A. J. and Penning, P. D. 1991. Synchronisation of eating, ruminating and idling activity by grazing sheep. Applied Animal Behaviour Science 32: 157166.Google Scholar
Rutter, S. M., Orr, R. J., Penning, P. D., Yarrow, N. H., Champion, R. A. and Atkinson, L. D. 1998. Dietary preference of dairy cows grazing grass and clover. Proceedings of the British Society of Animal Science, 1998, p. 51.Google Scholar
Satter, L. D. and Slyter, L. L. 1974. Effect of ammonia concentration on rumen microbial protein production in vitro . British Journal of Nutrition 32: 199208.Google Scholar
Statistical Analysis Systems Institute. 1987. SAS user’s guide. SAS Institute, Cary, NC.Google Scholar
Steg, A., Straalen, W. M. van, Hindle, V. A., Wensink, W. A., Dooper, F. M. H. and Schils, R. L. M. 1994. Rumen degradation and intestinal digestion of grass and clover at two maturity levels during the season in dairy cows. Grass and Forage Science 49: 378390.Google Scholar
Thomson, D. J. 1984. The nutritive value of white clover. Occasional symposium of the British Grassland Society, vol. 16, pp. 7892.Google Scholar
Van Soest, P. J. 1994. Nutritional ecology of the ruminant. Cornell University, Ithaca, NY.Google Scholar