| dc.contributor.author | Jackson, Christen Georgia | |
| dc.description.abstract | The objective of this study was to determine the effects of various estrous synchronization protocols utilizing the five-day controlled internal drug releasing (CIDR) inserts that are infused with progesterone (P4) alone and when coupled with gonadotropin-releasing hormone (GnRH) and prostaglandin (PG) during different breeding seasons. Ewes received either 1 of 4 treatments: 1) Untreated (U); 2) 5 d CIDR (0.3 g P4) insert (C); 3) 5 d CIDR and PG at CIDR removal (d 0, P); or 4) GnRH at 5 d CIDR insertion and PG at CIDR removal (G). In Experiment 1, overall days to estrus were greater (P ≤ 0.01) in U and P compared with C. In Experiment 2, overall days to estrus were greater (P ≤ 0.02) in U and P compared with G. In summary, the 5 d CIDR reduces the number of days required to bring ewes into estrus when compared to untreated ewes. | en_US |
| dc.publisher | North Dakota State University | en_US |
| dc.rights | NDSU policy 190.6.2 | |
| dc.title | Efficacy of Various Five-Day Estrous Synchronization Protocols in Sheep | en_US |
| dc.type | Thesis | en_US |
| dc.date.accessioned | 2017-11-14T20:11:53Z | |
| dc.date.available | 2017-11-14T20:11:53Z | |
| dc.date.issued | 2012 | |
| dc.identifier.uri | https://hdl.handle.net/10365/26828 | |
| dc.rights.uri | https://www.ndsu.edu/fileadmin/policy/190.pdf | |
| ndsu.degree | Master of Science (MS) | en_US |
| ndsu.college | Agriculture, Food Systems and Natural Resources | en_US |
| ndsu.department | Animal Sciences | en_US |
| ndsu.program | Animal Sciences | en_US |
| ndsu.advisor | Redden, Reid | |
