Accuracy and Precision Required in Measuring Devices Used in Dairy Herd Improvement Association Recording

Autor: J.W. Smith, R.D. Plowman
Rok vydání: 1968
Předmět:
Zdroj: Journal of Dairy Science. 51:162-168
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(68)86941-3
Popis: (1) Alexander, M. HI, and Yapp, W. W. 1949. Comparison of Methods of Estimating Milk and Fat Production in Dairy Cows. 5. Dairy Sei., 32 : 621. (2) Bayley, N. D., Liss, R. M., and Stallard, J . E . 1952. A Comparison of Bimonthly and Quarterly Testing with Monthly Testing for Estimating Dairy Cattle Production. J. Dairy Sci., 35: 350. (3) Dick, I. D. 1950. Some Results on the Accuracy of Milk Sampling Over a Complete Lactation and the Daily Variability of Milk Yields. New Zealand Science Techno]., 32 (A) : 25. (4) Erb, R. E., Goodwin, M. M., Morrison, R. A., and Shaw, A. P. 1952. Lactation Studies. I II . Variations in Daily Yields of Dairy Cows. J. Dairy Sci., 35: 967. (5) Erb, R. E., Goodwin, M. M., Morrison, R. A., and Shaw, A. O. 1952. Lactation Studies. IV. Accuracy of Different Methods of Estimating Lac£ation Yields. J. Dairy Sei., 35 : 977. (6) Kendall, M. G. 1948. The Advanced Theory of Statistics. Voh II. Charles Griffin and Company Limited, London. (7) Sargent, F. D., Lytton, V. It., and Wall, O. G., Jr. 1966. l~eport to the Records Committee of A.D.S.A. Mimeo. (8) Smith, J. W. 1968. Accuracy and Precision Required in Measuring Devices Used in D.H.I.A. Recording. J. Dairy Sci., 51: 162. (9) Thompson, N. R., Stone, W. K., Graf, G. C., Kramer, C. Y., and Freund, R. J. 1960. Errors in Estimation of Lactational Yields of Milk, Fat, and Solids-not-fat from Individual Cows. J. Dairy Sci., 43: 95].
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