Adjustment of Milk Lamb Weaning Weights to a Standard Age

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Abstract
Weaning weights of lambs adjusted by six types of procedures have been compared with the actual weights of 115 lambs at 120 days of age; varying the procedure in each type with respect to time or interval, brought the number of methods compared to 26. The correlation coefficients varied from 0.99 by the use of bracketing weights of one week interval to the lowest of 0.94 by use of regression using one flock weight taken at earlier ages, and by actual weight at nearest weigh day with intervals of three weeks. The results were very similar when the correlations were computed “over-all” to those computed “within sex and type of raising.” All fifty-two correlations were statistically significant, and offer a wide choice of valid methods. Copyright © . .

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