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Milk Composition – The Future

Published online by Cambridge University Press:  27 February 2018

C.S. Mayne  and
F.J. Gordon
C.S. Mayne
Affiliation:
Agricultural Research Institute of Northern Ireland, Hillsborough, Co. , Down BT26 6DR, Northern Ireland, U.K
F.J. Gordon
Affiliation:
Agricultural Research Institute of Northern Ireland, Hillsborough, Co. , Down BT26 6DR, Northern Ireland, U.K
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Abstract

The papers presented at this Conference have highlighted the many exciting and challenging developments occurring in relation to milk composition within the production, processing and retail sectors. Historically, review papers considering future issues in relation to milk composition have focussed on opportunities to manipulate milk constituent composition. However, the overriding issue at present, in relation to milk composition in the broadest sense, concerns consumer perception of milk and dairy products. This is particularly the case with respect to : food safety; human health and; the naturalness and wholesomeness of milk and milk products. Food safety has become a key issue for consumers given current concerns over BSE, Escherichia coli 0157, antibiotic residues and dioxin contamination. Consequently, quality assurance schemes and traceability of supply from “farm to plate” have, or will become, essential features of the liquid milk/dairy product sector.

Consumer concerns regarding effects of consumption of milk/dairy products on human health have historically centred on the highly publicised link between fat consumption, particularly saturated fat, and coronary heart disease. However, more recently the less well publicised beneficial effects of milk/dairy product consumption on human health are now being recognised. These include the importance of milk and cheese as calcium sources for bone growth, which can reduce the risk of osteoporosis in later life, the positive effect of milk consumption on dental health (particularly when substituted for high–sugar soft drinks in young children) and anticarcinogenic and antiatherogenic effects mediated through the conjugated linoleic acid (CLA), butyric acid and sphingomyelin components within milk and dairy products. Increased emphasis on generic advertising of milk is essential to highlight these positive features to opinion–formers and consumers, especially when contrasted with the advertising budgets associated with competing products.

Major shifts in consumer consumption patterns have occurred in the last 30 years, with increased demand for low fat products, ready meals etc. and this has led to changes in milk processors’ requirements as assessed in terms of raw milk composition and properties. Alongside this, technological advances at the production level have facilitated opportunities to accelerate the rate of genetic change in the dairy herd and to modify/adapt feeding systems to better meet processor requirements. Further opportunities exist to increase fat plus protein yield whilst improving the protein :fat ratio through genetic improvement, but opportunities for genetic improvement in the composition of protein and fat fractions appear more limited. Alteration of protein, and particularly milk fat composition (e.g. enhanced unsaturated fatty acid and CLA contents) can be much more readily attained by modifying the diet of the dairy cow, and large scale projects using this approach are already delivering improved products to the consumer. One of the most excitingareas in terms of use of milk as a raw material relates to the production of both natural and induced bioactive components. In future, the mammary gland of the dairy cow may well be viewed as a bioreactor with the potential to synthesise large quantities of high value proteins. Use of transgenics, whilst potentially facilitating production of high value therapeutic or food ingredient components, is likely to be limited by consumer resistance to genetically modified dairy cows.

Development of niche markets for tailor–made milks and milk products (including organic produce), achieved through dietary manipulation, will require increased vertical integration between animal feed suppliers, milk producers, milk processors and food retailers. Increasing consideration in the future will also have to be given to the potential change in milk composition/processing characteristics mediated through changes in production systems, such as seasonality of calving, use of extended lactations and adoption of new milking systems e.g. robotic milking. Finally, the concept of naturalness and wholesomeness of milk and dairy products is also a major consideration for the consumer. We must be careful in adopting new technologies, whether at the level of on farm production e.g. animal breeding and feeding, or at the processing level e.g. food irradiation and high pressure processing, to ensure that the attributes of naturalness and wholesomeness of milk and milk products are retained.

Type
Close of conference
Information
BSAP Occasional Publication , Volume 25: Milk Composition , 2000 , pp. 317 - 328
Copyright
Copyright © British Society of Animal Science 2000

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References

Bank, W. and Muir, D.D. 1984. Milk utilisation and manipulation of composition in the future. In Milk compositional quality and its importance in future markets. Occasional Publication No. 9 - British Society of Animal Production 1984, (ed Castle, M.E. and Gunn, R.G.) pp. 17–25.Google Scholar
Belury, M.A. 1995. Conjugated dienoic linoleate: a polyunsaturated fatty acid with unique chemoprotective properties. Nutrition Reviews 53: 83–89.Google Scholar
Boland, M., Hill, J. and O’Connor, P. 2000. Changing the milk supply to increase cheese yield: The Kaikoura experience. In Milk composition. Occasional Publication No. 25 – British Society of Animal Science 2000, (ed Agnew, R.E., Agnew, K.W. and Fearon, A.M.) pp. 305–316.Google Scholar
Carson, A.F., Dawson, L.E.R. and Gordon, F.J. 2000. The effect of heifer rearing regime on milk yield and composition during the first lactation. In Milk composition. Occasional Publication No. 25 - British Society of Animal Science 2000, (ed Agnew, R.E., Agnew, K.W. and Fearon, A.M.) pp. 295–304.Google Scholar
Cooper, G.J.S. 1997. Conference overview : biotechnology for dairy production. In Milk composition, production and biotechnology, (ed Welch, R.A.S., Burns, D.J.W., Davis, S.R., Popay, A.I. and Prosser, C.G.) pp. 545–563. CAB International, New York.Google Scholar
Department of Health 1994. Nutritional aspects of cardiovascular disease. Report on Health and Social Subjects No 45. Her Majesty's Stationary Office, London, UK.Google Scholar
Ebert, K.M., Selfgrath, J.P., Di Tullio, P., Denman, J., Smith, T.E., Memmon, M.A., Schindler, J.E., Monastersky, G.M., Vitale, J.A. and Gordon, K. 1991. Transgenic production of a variant of human tissue-type plasminogen activator in goat milk : generation of transgenic goats and analysis of expression. Biotechnology 9: 835–838.Google Scholar
Fearon, A.M. and Mayne, C.S. 2000. Modifying milk fat composition – an example of current technology in practice. In Milk composition. Occasional Publication No. 25 – British Society of Animal Science 2000, (ed Agnew, R.E., Agnew, K.W. and Fearon, A.M.) pp. 241–247.Google Scholar
Garrick, D.J. and Lopez-Villalobos, N. 2000. Potential for economic benefits to the producer from altering the composition of milk. In Milk composition. Occasional Publication No. 25 - British Society of Animal Science 2000, (ed Agnew, R.E., Agnew, K.W. and Fearon, A.M.) pp. 93–108.Google Scholar
Gibson, J.P. 1991. The potential for genetic change of milk fat composition. Journal of Dairy Science 74: 3258–3266.CrossRefGoogle ScholarPubMed
Gibson, J.P. 2000. Options for genetic improvement of milk composition. In Milk composition. Occasional Publication No. 25 – British Society of Animal Science 2000, (ed Agnew, R.E., Agnew, K.W. and Fearon, A.M.) pp. 109–117.Google Scholar
Havel, R.J. 1997. Milk fat consumption and human health: Recent NIH and other American Governmental recommendations. In Milk composition, production and biotechnology, (ed Welch, R.A.S., Burns, D.J.W., Davis, S.R., Popay, A.I. and Prosser, C.G.) pp. 13–22. CAB International, New York.Google Scholar
Hill, J., Boland, M., Harris, P. and Paterson, G. 2000. Impact of genetic polymorphism on milk powder manufacture and processing. In Milk composition. Occasional Publication No. 25 - British Society of Animal Science 2000, (ed Agnew, R.E., Agnew, K.W. and Fearon, A.M.) pp. 87–92.Google Scholar
Keady, T.W.J., Mayne, C.S. and Fitzpatrick, D.A. 2000. Effect of supplementation of dairy cattle with fish oil on silage intake, milk yield and milk composition. Journal of Dairy Research 67: 137–153.CrossRefGoogle ScholarPubMed
Kefford, B., Christian, M.P., Sutherland, B.J., Mayes, J.J. and Grainger, C. 1995. Seasonal influences on cheddar cheese manufacture: influence of diet quality and stage of lactation. Journal of Dairy Research 62: 529–537.Google Scholar
Kelly, M.L., Kolver, E.S., Bauman, D.E., Van Amburgh, M.E. and Muller, L.D. 1998. Effect of intake of pasture on concentrations of conjugated linoleic acid in milk of lactating cows. Journal of Dairy Science 81: 1630–1636.Google Scholar
Kennelly, J.J. 1996. Producing milk with 2.5% fat – the biology and health implications for dairy cows. Animal Feed Science and Technology 60: 161–180.Google Scholar
Klok, P. 1996. Tackling the threats and opportunities. In Proceedings of the Northern Ireland Dairy Conference, 30th October, 1996 pp. 27–38.Google Scholar
Knight, C., Sorensen, A. and Muir, D. 2000. Non nutritional (novel) techniques for manipulation of milk composition. In Milk composition. Occasional Publication No. 25 - British Society of Animal Science 2000, (ed Agnew, R.E., Agnew, K.W. and Fearon, A.M.) pp. 223–239.Google Scholar
MacRae, J.C., Bequette, B.J. and Crompton, L.A. 2000. Synthesis of milk protein and opportunities for nutritional manipulation. In Milk composition. Occasional Publication No. 25 - British Society of Animal Science 2000, (ed Agnew, R.E., Agnew, K.W. and Fearon, A.M.) pp. 179–199.Google Scholar
Mansbridge, R.J., and Blake, J.S. 1997. The effect of feeding fish oil on the fatty acid composition of bovine milk. Proceedings of British Society of Animal Science, Scarborough p. 22.Google Scholar
Moorby, J., Dewhurst, R. and Marsden, S. 1996. Effects of increased dietary undegradable protein supply to dairy cows in late gestation on the yield and composition of milk during the subsequent lactation. Animal Science 63: 201–214.Google Scholar
Murphy, J.J. 2000. Synthesis of milk fat and opportunities for nutritional manipulation. In Milk composition. Occasional Publication No. 25 - British Society of Animal Science 2000, (ed Agnew, R.E., Agnew, K.W. and Fearon, A.M.) pp. 201–222.Google Scholar
Murphy, J.J., McNeill, G.P., Connolly, J.F. and Gleeson, P.A. 1990. Effect on cow performance and milk fat composition of including full fat soyabeans and rapeseeds in the concentrate mixture for lactating dairy cows. Journal of Dairy Research 57: 295–306.Google Scholar
O’Brien, B. 2000. Composition and processability of bovine milk from herds with different calving patterns. In Milk composition. Occasional Publication No. 25 – British Society of Animal Science 2000, (ed Agnew, R.E., Agnew, K.W. and Fearon, A.M.) pp. 77–86.Google Scholar
Parodi, P.W. 1999. Conjugated linoleic acid and other anticarcinogenic agents in bovine milk. Journal of Dairy Science 82: 1339–1349.Google Scholar
Regester, G.O., Smithers, G.W., Mitchell, I.R., McIntosh, G.H. and Dionysuis, D.A. 1997. Bioactive factors in milk : natural and induced. In Milk composition, production and biotechnology, (ed Welch, R.A.S., Burns, D.J.W., Davis, S.R., Popay, A.I. and Prosser, C.G.) pp. 119–132. CAB International, New York.Google Scholar
Scott, P.J. 1997. Milk consumption and individual responses. In Milk composition, production and biotechnology, (ed Welch, R.A.S., Burns, D.J.W., Davis, S.R., Popay, A.I. and Prosser, C.G.) pp. 3–33. CAB International, New York.Google Scholar
Sutton, J.D. 1989. Altering milk composition by feeding. Journal of Dairy Science 72: 2801–2814.Google Scholar
P.C., Thomas 1984. Feeding and milk protein production. In Milk compositional quality and its importance in future markets. Occasional Symposium No. 9 - British Society of Animal Production 1984, (ed M.E., Castle and Gimm, R.G.) pp. 53–67.Google Scholar
Wilson, P.N. and Lawrence, A.B. 1984. Research and development implications for the future. In Milk compositional quality and its importance in future markets. Occasional Publication No. 9 - British Society of Animal Production 1984, (ed Castle, M.E. and Gunn, R.G.) pp. 95–106.Google Scholar
Wright, G., Carver, A., Cotton, D., Reeves, D., Scott, A., Simon, P., Wilmit, I., Garner, I. and Colman, A. 1991. High level expression of active human alpha-1-anti typsin in the milk of transgenic sheep. Biotechnology 9: 830–234.Google Scholar