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The effect of type of concentrate and level of concentrate feeding on milk production

  • C. S. Mayne (a1) and F. J. Gordon (a1)

Abstract

Twenty-four British Friesian dairy cows in early lactation were used in a change-over design experiment with three periods, each of 4 weeks duration. The aim of the experiment was to assess the effects of both the type of concentrate and the level of concentrate supplementation on the utilization of grass silage for milk production. Four treatments consisted of offering 10 kg/day of either a barley (10B) or a sugar beet pulp-based concentrate (10S), each concentrate being offered at two crude protein concentrations of 175 (low) and 245 (high) g/kg dry matter. In a further two treatments the barley-based concentrates containing the low and high protein concentrations were offered at 7 kg/day (7B). All concentrates were offered in addition to the cows having ad libitum access to grass silage containing a dry-matter concentration of 213 g/kg and a digestible organic matter concentration of 668 g/kg dry matter.

Silage dry-matter intakes (kg/day) for cows given the low- and high-protein concentrates respectively were: 9·06 and 9·28 for the 7B treatments; 8·21 and 8·33 for the 10B treatments; and 8·04 and 7·97 for the 10S treatments (pooled s.e. 0·11). Fat-corrected milk yields for cows given the low- and high-protein concentrates respectively were: 24·0 and 24·1 for the 7B treatments; 25·9 and 27·0 for the 10B treatments; and 25·7 and 26·2 for the 10S treatments (pooled s.e. 0·57).

The higher level of concentrate feeding significantly increased milk yield (P < 0·001) whereas neither energy source nor protein concentration in the concentrates had a significant effect on milk yield (P > 0·05). There was a trend towards a greater response to increased protein concentration at the higher level of feeding.

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References

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Agricultural Research Council. 1980. The Nutrient Requirements of Ruminant Livestock. Commonwealth Agricultural Bureaux, Slough.
Beever, D. E. 1980. The utilization of protein in conserved forage. In Forage Conservation in the 80's. (ed. Thomas, C.), Occ. Symp. Br. Grassld Soc. No. 11, pp. 131143.
Bhattacharya, A. N. and Sleiman, F. T. 1971. Beet pulp as a grain replacement for dairy cows and sheep. J. Dairy Sci. 54: 8994.
Broster, W. H. 1972. Protein requirements of cows for lactation. In Handbuch der Tierernährung (ed. Lenkeit, W.Breirem, K. and Crasemann, E.), Vol. 2, pp. 292322. Verlag-Paul Parey, Hamburg.
Campling, R. C. 1966. The effect of concentrates on the rate of disappearance of digesta from the alimentary tract of cows given hay. J. Dairy Res. 33: 1323.
Campling, R. C., Freer, M. and Balch, C. C. 1962. Factors affecting the voluntary intake of food by cows. 3. The effect of urea on the voluntary intake of oat straw. Br. J. Nutr. 16: 115124
Castle, M. E. 1977. A comparison between the feeding value of barley and dried molassed sugar beet pulp for milk production. J. int. Irtst. Sugar Beet Res. 7: 6373.
Castle, M. E., Gill, M. S. and Watson, J. N. 1981. Silage and milk production: a comparison between barley and dried sugar beet pulp as silage supplements. Grass Forage Sci. 36: 319324.
Castle, M. E. and Watson, J. N. 1975. Silage and milk production: a comparison between barley and dried grass as supplements to silage of high digestibility. J. Br. Grassld Soc. 30: 217222.
Castle, M. E. and Watson, J. N. 1976. Silage and milk production: a comparison between barley and groundnut cake as supplements to silage of high digestibility. J. Br. Grassld Soc. 31: 191195.
Clancy, M. J. and Wilson, R. K. 1966. Development and application of a new chemical method for predicting the digestibility and intake of herbage samples. Proc. 10th int. Grassld Congr., Helsinki, pp. 445453.
Conway, E. J. 1962. Microdiffusion Analysis and Volumetric Error. 5th ed. Crosby Lockwood, London.
Devendra, C. and Lewis, D. 1973. The interaction between dietary lipids and fibre in the sheep. 1. A comparison of the methods used for crude fibre and acid-detergent fibre estimations. Anim Prod. 17: 275280.
Dewar, W. A. and McDonald, P. M. 1961. Determination of dry matter in silage by distillation with toluene. J. Sci. Fd Agric. 11: 790795.
El-Shazly, K., Dehority, B. A. and Johnson, R. R. 1961. Effect of starch on the digestion of cellulose in vitro and in vivo by rumen microorganisms. J. Anim. Sci. 20: 268273.
Ganev, G., Ørskov, E. R. and Smart, R. 1979. The effect of roughage or concentrate feeding and rumen retention time on total degradation of protein in the rumen. J. agric. Sci., Camb. 93: 651656.
Gordon, F. J. 1977. The effect of protein content on the response of lactating cows to level of concentrate feeding. Anim. Prod. 25: 181191.
Gordon, F. J. 1979. The effect of protein content of the supplement for dairy cows with access ad libitum to high digestibility, wilted grass silage. Anim. Prod. 28: 183189.
Gordon, F. J. 1980. The effect of silage type on the performance of lactating cows and the response to high levels of protein in the supplement. Anim. Prod. 30: 2937.
Gordon, F. J. 1981. Feed input-milk output relationships in the spring-calving dairy cow. In Recent Advances in Animal Nutrition —1980 (ed. Haresign, W.), pp. 1532. Butterworth, London.
Gordon, F. J. and McMurray, C. H. 1979. The optimum level of protein in the supplement for dairy cows with access to grass silage. Anim. Prod. 29: 283291.
Jones, D. W. and Kay, J. J. 1976. Determination of volatile fatty acids C1-C6 and lactic acid in silage juice. J. Sci. Fd Agric. 27: 10051014.
Keppler, D. and Decker, K. 1974. Glycogen. Determination with amyloglucosidase. In Methods of Enzymatic Analysis (ed. Bergmeyer, H. U.), Vol. 3, pp. 11271131. Verlag Chemie, Weinheim and Academic Press, New York.
Ling, E. R. 1963. A Textbook of Dairy Chemistry. Vol. 2. 4th ed. Chapman and Hall, London.
McMurray, C. H., Logan, E. F., McParland, P. j., McRory, F. J. and O';neill, D. G. 1978. Sequential changes in some blood components in the normal neonatal calf. Br. vet. J. 134: 590597.
Mertens, D. R. and Ely, L. O. 1979. A dynamic model of fiber digestion and passage in the ruminant for evaluating forage quality. J. Anim. Sci. 49: 10851095.
Mertens, D. R. and Loften, J. R. 1980. The effect of starch on forage fiber digestion kinetics in vitro. J. Dairy Sci. 63: 14371446.
Ministry of Agriculture, Fisheries and Food. 1973. The analysis of agricultural materials. Tech. Bull. 27. Her Majesty's Stationery Office, London.
Ministry of Agriculture, Fisheries and Food, Department of Agriculture and Fisheries for Scotland and Department of Agriculture for Northern Ireland. 1975. Energy allowances and feeding systems for ruminants. Tech. Bull. 33. Her Majesty's Stationery Office, London.
Moir, R. J. and Harris, L. E. 1962. Ruminal flora studies in the sheep. X. Influence of nitrogen intake upon ruminal function. J. Nutr. 77: 285298.
Oldham, J. D. and Alderman, G. 1982. Recent advances in understanding protein/energy inter-relationships in intermediary metabolism of ruminants. In Protein and Energy supply for High Production of Milk and Meat, pp. 3363. United Nations, Pergamon Press, Oxford.
Ørskov, E. R., Hughes-Jones, M. and McDonald, I. 1981. Degradability of protein supplements and utilization of undegraded protein by the high producing dairy cow. In Recent Developments in Ruminant Nutrition, (ed. Haresign, W. and Cole, D. J. A.), pp. 1730. Butterworth, London.
Patterson, H. D. and Lucas, H. L. 1962. Changeover designs. Tech. Bull. N. Carol, agric. Exp. Stn, No. 147.
Ronning, M. and Bath, D. L. 1962. Relative milk production value of barley, dried beet pulp, molasses dried beet pulp and concentrated steffen filtrate dried beet pulp. J. Dairy Sci. 45: 854857.
Rowett Research Institute. 1976. Feedingstuffs Evaluation Unit, First Report, 1975. Department of Agriculture and Fisheries for Scotland, Edinburgh.
Steen, R. W. J. and Gordon, F. J. 1980a. The effect of level and system of concentrate allocation to January/February calving cows on total lactation performance. Anim. Prod. 30: 3951.
Steen, R. W. J. and Gordon, F. J. 1980b. The effect of type of silage and level of concentrate supplementation offered during early lactation on total lactation performance of January/February calving cows. Anim. Prod. 30: 341354.
Wainman, F. W., Dewey, P. J. S. and Boyne, A. W. 1979. Feedingstuffs Evaluation Unit, Second Report, 1978, Rowett Research Institute. Department of Agriculture and Fisheries for Scotland, Edinburgh.

The effect of type of concentrate and level of concentrate feeding on milk production

  • C. S. Mayne (a1) and F. J. Gordon (a1)

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