Postpartum interval to estrus and patterns of LH and progesterone in first-calf suckled beef cows exposed to mature bulls

作者： E E Custer , J G Berardinelli , R E Short , M Wehrman , R Adair

DOI: 10.2527/1990.6851370X

关键词: Estrous cycle 、 Weight change 、 Animal science 、 Blood sampling 、 In utero 、 Endocrinology 、 Uterus 、 Internal medicine 、 Reproduction 、 Ice calving 、 Involution (mathematics) 、 Biology

摘要: … uterine involution scores. Uterine involution scores ranged from 0 to 5 based on the following criteria: 0) … Effect of electrical stimulation or presence of a bull on puberty in beef heifers. …