Influence of prebreeding progesterone plus prostaglandin F2-alpha on estrus and fertility in lactating dairy cows
| dc.citation.epage | 34 | en_US |
| dc.citation.spage | 32 | en_US |
| dc.contributor.author | Mee, M.O. | |
| dc.contributor.author | Stewart, R.E. | |
| dc.contributor.author | Stevenson, Jeffrey S. | |
| dc.contributor.author | Call, Edward P. | |
| dc.contributor.authoreid | jss | en_US |
| dc.date.accessioned | 2012-09-20T19:34:14Z | |
| dc.date.available | 2012-09-20T19:34:14Z | |
| dc.date.issued | 2012-09-20 | |
| dc.date.published | 1987 | en_US |
| dc.description.abstract | Progesterone administered before breeding may increase estrous expression and subsequent fertility in lactating dairy cows. Holstein cows (n=302) were assigned randomly at calving to three groups. Cows received no treatment (controls), one injection of prostaglandin F 2-alpha (PGF), or progesterone plus one injection of PGF (PRID + PGF). The average interval to estrus was 5 days shorter in PRID + PGF cows compared to cows given only PGF. In addition, more cows were observed in estrus 2 to 5 days after treatment in the PRID + PGF group compared to the PGF group. Average days from calving to conception were reduced in PRID + PGF cows by 15 to 20 days compared to control and PGF cows. We concluded that prebeeding progesterone in combination with PGF appears to enhance fertility. | en_US |
| dc.description.conference | Dairy Day, 1987, Kansas State University, Manhattan, KS, 1987 | |
| dc.identifier.uri | http://hdl.handle.net/2097/14729 | |
| dc.publisher | Kansas Agricultural Experiment Station | en_US |
| dc.relation.isPartOf | Kansas Agricultural Experiment Station contribution; no. 88-114-S | en_US |
| dc.relation.isPartOf | Report of progress (Kansas Agricultural Experiment Station); 527 | en_US |
| dc.subject | Dairy | en_US |
| dc.subject | Progesterone | en_US |
| dc.subject | Prostaglandin F2-alpha | en_US |
| dc.subject | Fertility | en_US |
| dc.subject | Lactation | en_US |
| dc.title | Influence of prebreeding progesterone plus prostaglandin F2-alpha on estrus and fertility in lactating dairy cows | en_US |
| dc.type | Conference paper | en_US |
