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The effects of levels of concentrate offered and inclusion of maize gluten or fish meal in the concentrate on reproductive performance and blood parameters of dairy cows

Published online by Cambridge University Press:  02 September 2010

J. D. Armstrong ,
E. A. Goodall ,
F. J. Gordon ,
D. A. Rice  and
W. J. McCaughey
J. D. Armstrong
Affiliation:
Veterinary Research Laboratories, Stormont, Belfast BT4 3SD
E. A. Goodall
Affiliation:
Biometrics Division, Agriculture and Food Science Centre, Newforge Lane, Belfast BT9 5PX
F. J. Gordon
Affiliation:
Agricultural Research Institute of Northern Ireland, Hillsborough, Co. Down BT26 6DR
D. A. Rice
Affiliation:
Veterinary Research Laboratories, Stormont, Belfast BT4 3SD
W. J. McCaughey
Affiliation:
Veterinary Research Laboratories, Stormont, Belfast BT4 3SD
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Abstract

Five randomized-block experiments were carried out over 2 years using British Friesian cows managed as three separate herds. The effects of offering cows different levels of concentrates, ranging from 0·8 to 7·2 kg/day, in addition to grass silage ad libitum during the winter period on reproductive performance was investigated. The effects of substituting 4 kg/day maize gluten, or 0·8 kg/day fish meal, for part or all of the standard concentrate were also examined.

Neither level of concentrates nor the inclusion of maize-gluten meal significantly affected reproductive performance even where milk production and quality was considerably influenced. The inclusion of fish meal improved conception rates to all services (0·64 v. 0·44; P < 0·05) and reduced the number of services required per conception (1·62 v. 2·31; P < 0·01).

Plasma urea levels were raised consistently by the feeding of fish meal and, with the exception of weeks 2 and 6 of lactation, by the feeding of higher levels of concentrates. From the 6th week of lactation levels of beta-hydroxybutyrate (BHB) in the blood were significantly higher in the group of cows receiving the highest level of concentrates. The BHB level at week 6 was correlated with the number of services required per conception.

A number of relationships between production factors and fertility are also presented.

Keywords

blood compositionconcentratesdairy cowsreproductive performance
Type
Research Article
Information
Animal Production , Volume 50 , Issue 1 , February 1990 , pp. 1 - 10
Copyright
Copyright © British Society of Animal Science 1990

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References

REFERENCES

Blowfy, R. W., Wood, D. W. and Davis, J. R. 1973. A nutritional monitoring system for dairy herds based on blood glucose, urea and albumin levels. Veterinary Record 92: 691–696.Google Scholar
Bulman, D. C. and Lamming, G. E. 1978. Milk progesterone levels in relation to conception, repeat breeding and factors influencing acyclicity in dairy cows. Journal of Reproduction and Fertility 54: 447–458.Google Scholar
Ducker, M. J. 1980. The effect of feeding strategy on reproductive performance of dairy cows. In Feeding Strategies for Dairy Cows (ed. Broster, W. H., Johnson, C. L. and Tayler, J. C.), pp. 13.1–13.11. Agricultural Research Council, London.Google Scholar
Ducker, M. J., Haggett, R. A., Fisher, W. J., Morant, S. V. and Bloomfield, G. A. 1985a. Nutrition and reproductive performance of dairy cattle. 1. The effect of level of feeding in late pregnancy and around the time of insemination on the reproductive performance of first lactation dairy heifers. Animal Production 41: 1–12.Google Scholar
Ducker, M. J. and Morant, S. V. 1984. Observations on the relationships between the nutrition, milk yield, live weight and reproductive performance of dairy cows. Animal Production 38: 9–14.Google Scholar
Ducker, M. J., Morant, S. V., Fisher, W. J. and Haggett, R. A. 1985b. Nutrition and reproductive performance o f dairy cattle. 2. Prediction of reproductive performance in first lactation dairy heifers subjected to controlled nutritional regimes. Animal Production 41: 13–22.Google Scholar
Gordon, F. J. 1984. The effect of level of concentrate supplementation given with grass silage during the winter on the total lactation performance of autumn-calving dairy cows. Journal of Agricultural Science, Cambridge 102: 163–179.CrossRefGoogle Scholar
Gordon, F. J. 1987. Maize gluten feed as a supplemento grass silage for dairy cattle. Animal Production 44: 469–470.Google Scholar
Gordon, F. J. and McMurray, C. H. 1979. The optimum level of protein in the supplement for dairy cows with access to grass silage. Animal Production 29: 283–291.Google Scholar
Hagemeister, H., Lopping, W. and Kaufmann, W. 1981. Microbial protein synthesis and digestion in the high-yielding dairy cow. In Recent Advances in Animal Nutrition — 1980 (ed. Haresign, W.), pp. 67–84. Butterworths, London.CrossRefGoogle Scholar
Jordan, E. R., Chapman, T. E., Holtan, D. W. and Swanson, L. V. 1983. Relationship of dietary crude protein to composition of uterine secretions and blood in high-producing postpartum dairy cows. Journal of Dairy Science 66: 1854–1862.CrossRefGoogle ScholarPubMed
Jordan, E. R. and Swanson, L. V. 1979. Effect of crude protein on reproductive efficiency, serum total protein, and albumin in the high-producing dairy cow. Journal of Dairy Science 62: 58–63.Google Scholar
Kelly, J. M. 1977. Changes in serum (β-hydroxybutyrate concentrations in dairy cows kept under commercial farm conditions. Veterinary Record 101: 499–502.Google Scholar
King, J. O. L. 1968. The relationship between the conception rate and changes in bodyweight, yield and SNF content of milk in dairy cows. Veterinary Record 83: 492–494.Google Scholar
Leaver, J. D. 1983. Effect of condition score and milk protein content at service on conception rates. In Crichton Royal Farm Report — 1983, pp. 36–37. West of Scotland Agricultural College, Auchincruive.Google Scholar
Lowman, B. G., Scott, N. and Sommerville, S. 1973. Condition scoring of cattle. Bulletin, East of Scotland College of Agriculture, No. 6.Google Scholar
McCauohey, W. J. and Gordon, F. J. 1979. Milk progesterone assay: a comparison of inter-quarter and sampling time variation. British Veterinary Journal 135: 12–518.Google Scholar
McMurray, C. H., Blanchflower, W. J. and Rice, D. A. 1984. Automated kinetic method of D-3-hydroxybutyrate in plasma or serum. Clinical Chemistry 30: 421–425.Google 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
Otterby, D. E. and Linn, J. G. 1983. Effects of nutrition on reproduction in dairy cattle. Compendium on Continuing Education for the Practicing Veterinarian, Vol. 5, pp. S85–S93.Google Scholar
Parker, B. N. J. and Blowey, R. W. 1976. Investigations into the relationship of selected blood components to nutrition and fertility of the dairy cow under commercial farm conditions. Veterinary Record 98: 394–404.Google Scholar
Treacher, R. J., Little, W., Collis, K. A. and Stark, A. J. 1976. The influence of dietary protein intake on milk production and blood composition of high-yielding dairy cows. Journal of Dairy Research 43: 357–369.Google Scholar
Whitaker, D. A., Kelly, J. M. and Smith, E. J. 1983. Subclinical ketosis and serum betahydroxybutyrate levels in dairy cattle. British Veterinary Journal 139: 462–463.Google Scholar