Pregnancy rates in cows and heifers inseminated at predetermined times using progesterone-releasing intravaginal devices.
Autor: | Ellicott AR, Thompson CE, Hill JR Jr |
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Jazyk: | angličtina |
Zdroj: | Theriogenology [Theriogenology] 1977 Dec; Vol. 8 (6), pp. 315-21. |
DOI: | 10.1016/0093-691x(77)90183-2 |
Databáze: | MEDLINE |
Externí odkaz: |