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The prediction of the voluntary feed intake of dairy cows

  • J. Vadiveloo (a1) and W. Holmes (a1)

Summary

Information on the total dry-matter intake (TDMI), concentrates supplied (C), live weight (LW), week of lactation (WL), milk yield (MY) and composition, quality of forage fed to, and parities of, 385 cows from five different sources were assembled to develop appetite prediction equations. The equations were based on multiple regression and least squares constants and were calculated using the data from each source and the data pooled from all sources. The major factors affecting total dry-matter intake (TDMI) were C, LW, WL and MY and for the pooled data these factors explained 73–76% (R2) of the total variation in TDMI. The predictive values of some of the equations were tested against independent sets of data and for groups of cows and individual cows, the equations predicted TDMI within ±1·1 and 1·6 kg, respectively. The application of the equations in the field is discussed and some suggestions made for increasing the R2 of future appetite equations.

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Agricultural Research Council (1965). The nutrient requirements of farm livestock, No. 2. Ruminants. London: Agricultural Research Council.
Bines, J. A. (1976). Factors influencing voluntary food intake in cattle. In Principles of Cattle Production (ed. Swan, H. & Broster, W. H.), ch. 14, pp. 287305. London: Butterworth.
Brown, C. A., Chandler, P. T. & Holter, J. B. (1977). Development of predictive equations for milk yield and dry matter intake in lactating cows. Journal of Dairy Science 60, 17391754.
Coppock, C. E., Noller, C. H. & Wolfe, S. A. (1974). Effect of forage-concentrate ratio in complete feeds fed ad libitum on energy intake in relation to requirements by dairy cows. Journal of Dairy Science 57, 13711380.
Curran, M. K., Wimble, R. H. & Holmes, W. (1970). Prediction of the voluntary intake of food by dairy cows. I. Stall fed cows in late pregnancy and early lactation. Animal Production 12, 195212.
Donker, J. D., Naik, D. J., Brahmakshatriya, R. D., Maclure, F. A. & Marten, G. C. (1976). Relationship of milk production to ration characteristics and the partition of consumed energy among needs for maintenance, milk produced and weight change. In Energy Metabolism of Farm Animals, EAAP Pub. no. 19, pp. 319322.
Draper, N. R. & Smith, H. (1967). Applied Regression Analysis. New York, London, Sydney: John Wiley & Sons, Inc.
Forbes, J. M. (1978). Models of the control of feed intake and energy balance in ruminants. In Hunger Models – Computable Theory of Feeding Control (ed. Booth, D. A.). London: Academic Press.
Harricharan, H., Mahadevan, P. & Springer, B. G. F. (1976). The performance of Santa Gertrudis, Sahiwal, Brahman and cross-bred animals in the intermediate savannahs of Guyana. 2. Birthweight and pre-weaning performance. Journal of Agricultural Science, Cambridge 87, 269276.
Jarrige, R. (1978). (ed.) Alimentation des Ruminants. Institut National de la Recherche Agronomique (INRA), Paris.
Lamb, R. C., Walters, J. L., Andersen, M. J., Plowman, R. D., Mickelsen, C. H. & Miller, R. H. (1977). Effects of sire and interaction of sire with ration in efficiency of feed utilization by Holsteins. Journal of Dairy Science 60, 17551767.
Lawes Agricultural Trust (1977). GENSTAT-a general statistical program. Rothamsted Experimental Station.
Leaver, J. D. (1973). Rearing of dairy cattle. 4. Effects of concentrate supplementation on the liveweight gain and feed intake of calves offered roughages ad libitum. Animal Production 17, 4352.
McCullough, M. E. (1973). Optimum Feeding of Dairy Animals for Meat and Milk. Atlanta, Georgia, U.S.A.: University of Georgia Press.
Miller, R. H., Hooven, N. W., Smith, J. W. & Creegan, M. E. (1972). Feed consumption differences among lactating cows. Journal of Dairy Science 55, 454459.
Ministry of Agriculture, Fisheries & Food (1975). Energy allowances and feeding systems for ruminants. Technical Bulletin 33.
Moran, J. B. (1976). Beef production as influenced by grazing and feeding management and by mature size. Ph.D. thesis, Wye College, University of London.
Pabst, W., Kilkenny, J. B. & Langholz, H. J. (1977). Genetic and environmental factors influencing calf performance in pedigree beef cattle in Britain. 1. The influence of environmental effects on birth, 200-day and 400-day weights. Animal Production 24, 2939.
Snedecor, G. W. & Cochran, W. G. (1967). Statistical Methods. Ames, Iowa, U.S.A.: Iowa State University Press.
Vadiveloo, J. & Holmes, W. (1979). The effects of forage digestibility and concentrate supplementation on the nutritive value of the diet and performance of finishing cattle. Animal Production 29, 121129.

The prediction of the voluntary feed intake of dairy cows

  • J. Vadiveloo (a1) and W. Holmes (a1)

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