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Title: | Different estrous induction protocols during the transition period in lactating Turkish Saanen does following Al |
Authors: | Konyali, Aynur Tölü, Cemil Uludağ Üniversitesi/Veterinerlik Fakültesi/Dölleme ve Suni Tohumlama Bölümü. 0000-0003-1976-1814 Doǧan, İbrahim Yurdabak, Serkan R-8366-2018 36762299000 23988232000 |
Keywords: | Veterinary sciences Cloprostenol Cronolone ECG Transition period Turkish Saanen goat Capra hircus Dairy goats Artificial-insemnation Reproductive-performance Estrus synchronization Breeding-season Vaginal sponges Semen |
Issue Date: | 2008 |
Publisher: | Sciendo |
Citation: | Doğan, İ. vd. (2008). "Different estrous induction protocols during the transition period in lactating Turkish Saanen does following Al". Acta Veterinaria-Beograd, 58(2-3), 259-266. |
Abstract: | The objective of this study was to evaluate the duration of three progestagen treatments for estrous synchronization in lactating Turkish Saanen goats during the transitional period from anestrous. All does (n = 60) were divided into three equal groups and the estrous period of the does was synchronized using intravaginal sponges (20 mg FGA) for either 11 days (Group 1), 9 days (Group 2) or 6 days (Group 3). In addition, 24h before sponge removal (on the 10(th) day, 8(th) day and 5(th) day, respectively) each doe was injected with 0.075 mg cloprostenol (PGF(2 alpha)) and 500 IU eCG. Cervical artificial inseminations (Al) with frozen-thawed semen were performed at fixed intervals (36 and 48 h) following progestagen withdrawal. The total estrous response following the first withdrawal was 12 +/- 6 h within 66 h. Time to onset and duration of the induced estrous, and pregnancy rates were recorded to be 30.0%, 100%, 23.9 +/- 0.7 h, 29.4 +/- 1.3 h, and 28.3%, respectively. There were significant differences between Group 1 and the other groups, in terms of the onset of induced estrus (P<0.05) and estrous response for the first 12 +/- 6 h (P<0.05) and between Group 2 and Groups 1 and 3 in terms of the duration of induced estrous (P<0.05). Each of the three protocols was effective in inducting and synchronizing estrus in lactating Turkish Saanen goats. |
URI: | https://doi.org/10.2298/AVB0803259D http://www.doiserbia.nb.rs/Article.aspx?ID=0567-83150803259D#.YjBGu3pByM8 http://hdl.handle.net/11452/25092 |
ISSN: | 0567-8315 1820-7448 |
Appears in Collections: | Scopus Web of Science |
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