Concepedia

Variation in Ratio Factors for Age-Adjusting Part-Lactation Records

R.H. Miller, B.T. McDaniel, E.L. Corley

Journal of Dairy Science · 1967 · 15 citations · 4 references

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Concepts

Abstract

Age factors for placing cumulative and noncumulative part-lactation yields on a mature-equivalent part-lactation basis were constructed from 39,328 lactations representing 27,538 Iowa Holstein cows. Variation in the age-production curves associated with season, test day, and yield trait (milk or fat) was investigated.

References

4

Ratio Factors for Adjusting Monthly Test-Day Data for Age and Season of Calving and Ratio Factors for Extending Part Lactation Records

L.D. Van Vleck, Charles Henderson · Journal of Dairy Science · 1961 · 52 citations · Full text

, , +13

Relations between Test-Day Milk Production of Holstein Cows

D.E. Madden, L.D. McGilliard, N.P. Ralston · Journal of Dairy Science · 1959 · 45 citations · Full text

, , +8

Maximum Likelihood Estimates of Age Effects

R.H. Miller, W. R. Harvey, Kenneth A. Tabler et al. · Journal of Dairy Science · 1966 · 30 citations · Full text

, , +14

Part Lactations. I. Age-Correction Factors for Monthly Milk Fat Yields

S.E. Searle · Journal of Dairy Science · 1961 · 16 citations · Full text

, , +6