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The Use of Chromic Oxide in the Measurement of Individual Feed Intake in Cattle Fed on Silage and Barley

Published online by Cambridge University Press:  02 September 2010

J. M. Wilkinson  and
J. H. D. Prescott
J. M. Wilkinson
Affiliation:
School of Agriculture, University of Newcastle upon Tyne
J. H. D. Prescott
Affiliation:
School of Agriculture, University of Newcastle upon Tyne
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Summary

1. Three experiments are reported in which chromic oxide, administered as a component of shredded paper at 09·00 and 16·30 hr daily, was used in the estimation of the faecal output of steers fed on silage and barley.

2. Four Friesian steers of 160 kg live weight were used in experiment 1. They were fed on grass silage ad libitum with controlled allowances of concentrate supplement. ‘Absolute’ recovery of Cr2O3 in total collections was 85–91%, though it was apparent that some faeces may have been lost from the total collections. ‘Relative’ recovery in grab samples was 97%.

3. Diurnal variation in Cr2O3 excretion was investigated in experiment 2 with four yearling Friesian steers. Faeces were sampled in three 24-hr periods at each natural defaecation. A significant and consistent diurnal variation was observed, with the lowest concentration of Cr2O3 occurring during the night. Concurrent grab samples taken at 09.15 and 17.00 hr over four days gave estimates of cr2O3 in the faeces which were 16·27% higher than the mean concentration for the three 24-hr sampling periods.

4. Day-to-day variation in the Cr2O3 content of grab samples was examined in experiment 3 with eight yearling Friesian steers. Four steers received 3·63 kg/head per day of barley supplement and four received 1·81 kg. Both groups were offered silage of 25% dry matter ad libitum. Faeces were sampled per rectum twice daily at 09.15 and 17.00 hr over four-day sampling periods. The degree of day-to-day variation was small and tended to be random.

Type
Research Article
Information
Animal Production , Volume 12 , Issue 1 , February 1970 , pp. 71 - 80
Copyright
Copyright © British Society of Animal Science 1970

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References

REFERENCES

Balch, C. C., Reid, J. T. and Stroud, J. W. 1957. Factors influencing the rate of excretion of administered chromium sesquioxide by steers. Br. J. Nutr. 11: 184–197.CrossRefGoogle ScholarPubMed
Brisson, G. J. 1960. Indicator methods for estimating the amount of forage consumed by grazing animals. Proc. 8th int. Grassld Congr., Reading, pp. 435–438.Google Scholar
Clanton, D. C. 1962. Variation in chromic oxide methods of determining digestibility of hand-fed beef cattle rations. J. Anim. Sci. 21: 216–218.Google Scholar
Corbett, J. L., Greenhalgh, J. F. D. and McDonald, A. P. 1958. Paper as a carrier of chromium sesquioxide. Nature, Lond. 182: 1014.Google Scholar
Corbett, J. L., Greenhalgh, J. F. D., McDonald, I. and Florence, E. 1960. Excretion of chromium sesquioxide administered as a component of paper to sheep. Br. J. Nutr. 14: 289–299.CrossRefGoogle Scholar
Coup, M. R. and Lancaster, R. J. 1952. The measurement of feed intake by grazing cattle and sheep. II. The determination of chromic oxide and monastral blue in cow faeces. N. Z. Jl Sci. Technol. A. 34: 347–353.Google Scholar
Cowlishaw, S. J. and Alder, F. E. 1963. A comparative study of paper and oil as carriers of chromium sesquioxide administered to grazing steers to determine their faecal output. J. Br. Grassld Soc. 18: 328–333.Google Scholar
Crampton, E. W. and Lloyd, L. E. 1951. Studies with sheep on the use of chromic oxide as an index of digestibility of ruminant rations. J. Nutr. 45: 319–327.Google Scholar
Curran, M. K., Leaver, J. D. and Weston, E. W. 1967. A note on the use of chromic oxide incorporated in a feed to estimate facal output in ruminants. Anim. Prod. 9: 561–564.Google Scholar
Davis, C. L., Byers, J. H. and Luber, L. E. 1958. An evaluation of the chromic oxide method for determining digestibility. J. Dairy Sci. 41: 152–159.CrossRefGoogle Scholar
Hardison, W. A., Engel, R. W., Linkous, W. N., Sweeney, H. C. and Graf, C. G. 1956. Faecal chromic oxide concentration in twelve dairy cows as related to time and frequency of administration and to feeding schedule. J. Nutr. 58: 11–17.CrossRefGoogle Scholar
Hutchtnson, K. J. 1956. Techniques applicable to grazing intake studies. Proc. Aust. Soc. Anim. Prod. 1: 52–56.Google Scholar
Johnson, D. E., Dinusson, W. E. and Bolin, D. W. 1964. Rate of passage of chromic oxide and composition of digesta along the alimentary tract of wethers. J. Anim. Sci. 23: 499–505.CrossRefGoogle Scholar
Kane, E. A., Jacobson, W. C. and Moore, L. A. 1952. Diurnal variation in the excretion of chromic oxide and lignin. J. Nutr. 47: 263–273.CrossRefGoogle ScholarPubMed
Langlands, J. P., Corbett, J. L., McDonald, I. and Reid, G. W. 1963. Estimation of the faeces output of grazing animals from the concentration of chromium sesquioxide in a sample of faeces. Br. J. Nutr. 17: 211–226.CrossRefGoogle Scholar
Lurnngh, H. C. 1961. The use of chromic oxide and lignin as indicators for determining intake and digestibility by steers. J. agric. Sci., Camb. 56: 333–342.Google Scholar
Raymond, W. F., Minson, D. J. 1955. The use of chromic oxide for estimating the faecal production of grazing animals. J. Br. Grassld Soc. 10: 282–296.CrossRefGoogle Scholar
Stevenson, A. E. 1962. Measurement of feed intake by grazing cattle and sheep. VIII. Some observations on the accuracy of the chromic oxide technique for the estimation of faeces output of dairy cattle. N.Z. Jl agric. Res. 5: 339–345.Google Scholar
Stevenson, A. E. and De Langen, H. 1960. Measurement of feed intake by grazing cattle and sheep. VII. Modified wet digestion method for determination of chromic oxide in faeces. N.Z. Jl agric. Res. 3: 314–319.CrossRefGoogle Scholar
Troelsen, J. E. 1965. Sustained release of chromic oxide in the rumen of sheep from a chromic oxide-paper pellet. Anim. Prod. 7: 239–245.Google Scholar
Wilkinson, J. M. 1968. Studies in the production of beef from grass. Ph.D. Thesis, Univ. of Newcastle-upon-Tyne.Google Scholar
Williams, C. H., David, D. J. and Iismaa, O. 1962. The determination of chromic oxide in faeces samples by atomic absorption spectrophotometry. J. agric. Sci., Camb. 59: 381–385.CrossRefGoogle Scholar