Title: | Variation in estrus-related odors in the cow and its dependency on the ovary |
Author(s): | Dehnhard M; Claus R; Pfeiffer S; Schopper D; |
Address: | "Universitat Hohenheim, Institut fur Tierhaltung und Tierzuchtung, POB 700562 D-7000 Stuttgart 70, Germany" |
DOI: | 10.1016/0093-691x(91)90460-u |
ISSN/ISBN: | 0093-691X (Print) 0093-691X (Linking) |
Abstract: | "Urine samples were collected from 10 cows during the estrous cycle (Day 0=day of observed estrus) and investigated for pheromone activity using a quantitative rat bioassay. Pheromone activity in this assay was given in impulses/45 sec. Progesterone was measured in milk fat to verify the stage of cycle. The maximal response of rats was found on Day -1 (20.0 +/- 3.5 impulses/45 sec; x +/- SEM), and impulse rates were clearly higher (P |
Notes: | "PubMed-not-MEDLINEDehnhard, M Claus, R Pfeiffer, S Schopper, D eng 1991/03/01 Theriogenology. 1991 Mar; 35(3):645-52. doi: 10.1016/0093-691x(91)90460-u" |