title: The effects of dietary monensin sodium upon superovulation and embryo viability from mature cows.
abstract: Twelve mature British crossbred cows were randomly divided into two equal groups. Group A was fed no monensin while group B received 200 mg/head/day. Superovulation with follicle stimulating hormone (FSH) was attempted in all cows between days 9 and 11 of the estrous cycle. The number of corpora lutea per treated cow was significantly greater (P<0.05) than in controls. The number of ova recovered per cow was not significantly different between the two groups. Mean total luteal weight was significantly greater for monensin-treated cows. Embryo viability was determined using fluorescein diacetate (FDA) and was found to be similar in both groups.
authors.affiliation: Large Animal Medicine and Surgery, School of Veterinary Medicine, Auburn University, AL 36849, USA.
authors.forename: A M
authors.initials: AM
authors.lastname: Ortuno
authors.forename: R L
authors.initials: RL
authors.lastname: Carson