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Quelques facteurs de variation de la teneur en calcium des laits de vaches

Published online by Cambridge University Press:  01 June 2009

Par P. Auriol  and
G. Mocquot
Par P. Auriol
Affiliation:
Centre National de Recherches Zootechniques, Jouy-en-Josas (Seine-et-Oise), France
G. Mocquot
Affiliation:
Centre National de Recherches Zootechniques, Jouy-en-Josas (Seine-et-Oise), France
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Summary

A study was made of the effect of various factors which may influence the calcium content of milk. The basic data consisted of the calcium content of 20840 samples of individual milks, taken once a month, during the course of 2300 lactations of Montbeliarde cows. For each lactation, a weighted average figure for the calcium concentration was calculated, taking into account the milk quantities recorded on each sampling day. The calcium content has been expressed in g/kg of milk.

The stage of lactation caused significant variations in calcium content mainly during the first month and the last three months. Expressed as percentages of the arithmetic mean for the whole lactation period, these variations were always within the limits —4 to +8% (Fig. 1).

The season of calving did not greatly affect the weighted lactational average content of calcium but caused some important changes in the average value with advancing lactation (Fig. 2). The minimum values were always observed in July, whatever the month of calving (Fig. 3).

The age of the cow, as well as the age at first calving (Table 1), had very small effects on the calcium content.

Type
Original Articles
Information
Journal of Dairy Research , Volume 29 , Issue 2 , June 1962 , pp. 181 - 189
Copyright
Copyright © Proprietors of Journal of Dairy Research 1962

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References

RÉFÉRENCES BIBLIOGRAPHIQUES

Auriol, P. et Mocquot, G. (1957). Ann. Zootechn. 6, 95.CrossRefGoogle Scholar
Auriol, P. et Grosclaude, F. (1960). Ann. Zootechn. 9, 121.CrossRefGoogle Scholar
Breirem, K. (1949). C.R. 12e Congr. int. Laiterie, 6, 9.Google Scholar
Ellenberger, H. B., Newlander, J. A. et Jones, C. H. (1950). Bull. Vt agric. Exp. Sta. no. 556.Google Scholar
Gueguen, L. et Journet, M. (1961). Ann. Biol. anim. Bioch. Bioph. 1, 305.CrossRefGoogle Scholar
Jacobson, D. H. et Wallis, G. C. (1939). S.D. Agric. exp. Sta. Bull. no. 331.Google Scholar
Jenness, R. (1953). Analyt. Chem. 25, 966.CrossRefGoogle Scholar
Kublitz, M. (1953). Milchwissenschaft, 8, 315.Google Scholar
Kulagina, N. N. (1958). Dokl. vses. Konf. moloch. Delu, pp. 101 et 230.Google Scholar
Labouche, C. et Peytavin, A. (1957). Rev. Elev. 10, 373.Google Scholar
Landau, L. et Gazo, M. (1956). Vet. Časopis, 5, 403.Google Scholar
Lenkeit, W., Gimmler, W. et Sieck, K. H. (1959). Arch. Tierernähr. 9, 166.CrossRefGoogle Scholar
Markova, K. V. (1955). Sborn. Dokl. vses. Soveshch. p. 136.Google Scholar
Mathur, M. L. et Desai, S. V. (1953). Indian J. vet Sci. 23, 221.Google Scholar
Mercer, E. R. et Ellis, F. B. (1961). Dairy Sci. Abstr. 23, 1.Google Scholar
Nickerson, T. A. (1961). J. Dairy Sci. 44, 1025.CrossRefGoogle Scholar
Reinart, A. et Nesbitt, J. M. (1961). The Composition of Milk in Manitoba, 148 pp. Manitoba: Winnipeg University.Google Scholar
Richter, K. et Oslage, H. J. (1959). Arch. Tierernähr. 9, 327.CrossRefGoogle Scholar
Robertson, A., Waite, R. et White, J. C. D. (1956). J. Dairy Res. 23, 82.CrossRefGoogle Scholar
Tacvi, A., Popescu, Fr., Nedelniuc, V. et Petcu, D. (1960). Lucr. Sti. Inst. Certet. zootech. 18, 141.Google Scholar
Vanschoubroek, F. X. (1958). Neth. Milk Dairy J. 12, 12.Google Scholar
Vanschoubroek, F. X. (1959). Neth. Milk Dairy J. 13, 113.Google Scholar
Vanschoubroek, F. X. et Willems, A. (1956). Zootechnia, Madrid, 5, 259.Google Scholar