Pregnancy rates in cows and heifers inseminated at predetermined times using progesterone-releasing intravaginal devices.

Autor: Ellicott AR, Thompson CE, Hill JR Jr
Jazyk: angličtina
Zdroj: Theriogenology [Theriogenology] 1977 Dec; Vol. 8 (6), pp. 315-21.
DOI: 10.1016/0093-691x(77)90183-2
Databáze: MEDLINE