@article{d26885754b31404fa7de7e15ea019c45,
title = "First-service pregnancy rate in beef heifers as influenced by human chorionic gonadotropin administration before and/or after breeding",
keywords = "beef cattle, hCG, pregnancy rate",
author = "Breuel, \{K. F.\} and Spitzer, \{J. C.\} and Thompson, \{C. E.\} and Breuel, \{J. F.\}",
year = "1990",
month = jul,
doi = "10.1016/0093-691X(90)90585-H",
language = "English",
volume = "34",
pages = "139--145",
journal = "Theriogenology",
issn = "0093-691X",
number = "1",
}