Flushing affects secretion of the hormones controlling reproduction
dc.citation.epage | 9 | en_US |
dc.citation.spage | 5 | en_US |
dc.contributor.ORCID | orcid.org/0000-0002-9150-169X | |
dc.contributor.author | Rhodes, M.T. | |
dc.contributor.author | Minton, J. Ernest | |
dc.contributor.author | Stevenson, Jeffrey S. | |
dc.contributor.author | Davis, Duane L. | |
dc.contributor.authoreid | eminton | en_US |
dc.contributor.authoreid | jss | en_US |
dc.contributor.authoreid | davis | en_US |
dc.date.accessioned | 2010-04-22T21:52:37Z | |
dc.date.available | 2010-04-22T21:52:37Z | |
dc.date.issued | 2010-04-22T21:52:37Z | |
dc.date.published | 1986 | en_US |
dc.description.abstract | Nineteen gilts were assigned to receive either 0 or 15 mg altrenogest/day for 14 consecutive days. On the day corresponding to the last altrenogest treatment, gilts not fed altrenogest were injected twice (morning and evening) with prostaglandin F2 a to ensure regression of their corpora lutea. From the ninth day of altrenogest treatment until estrus, one-half of each altrenogest group was offered an additional 3.4 lb of ground sorghum grain (flush). Serial blood samples were collected for a 4-h period each day from day 1 through day 4 (last altrenogest or prostaglandin F a treatment was day 0) and analyzed for estradiol-1713 progesterone follicle-stimulating hormone (F SH) and luteinizing hormone (LH). Flushing resulted in an increased ovulation rate (16.3 vs 13 corpora lutea) and a shortened interval to estrus (5 vs 5.9 days). Altrenogest treatment resulted in an increased interval to estrus (5.8 vs 5.1 days). The data were analyzed relative to estrus using days -5, -4, -3 and -2 before first standing estrus (day 0). Altrenogest increased estradiol by 1.5 pg/ml and decreased progesterone by .9 ng/ml, whereas flushing increased (P<.05) progesterone by .6 ng/ml and concentration of FSH by 1.6 ng/ml. These data point to changes in FSH and(or) P as likely hormonal causes for increased ovulation rates in flushed gilts. | en_US |
dc.description.conference | Swine Day, Manhattan, KS, November 20, 1986 | en_US |
dc.identifier.uri | http://hdl.handle.net/2097/3702 | |
dc.publisher | Kansas State University. Agricultural Experiment Station and Cooperative Extension Service | en_US |
dc.relation.isPartOf | Swine day, 1986 | en_US |
dc.relation.isPartOf | Kansas Agricultural Experiment Station contribution; no. 87-133-S | en_US |
dc.relation.isPartOf | Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 507 | en_US |
dc.subject | Swine | en_US |
dc.subject | Hormones | en_US |
dc.subject | Reproduction | en_US |
dc.title | Flushing affects secretion of the hormones controlling reproduction | en_US |
dc.type | Conference paper | en_US |