Replacement policy in dairy herds on farms where heifers compete with the cows for Grassland--part 1: Model construction and validation
| Year of publication: |
1981
|
|---|---|
| Authors: | Gartner, J. A. |
| Published in: |
Agricultural Systems. - Elsevier, ISSN 0308-521X. - Vol. 7.1981, 4, p. 289-318
|
| Publisher: |
Elsevier |