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Öğe Effect of estrus synchronization protocols including PGF2? and GnRH on fertility parameters in hair goats during breeding season(Pakistan Agricultural Scientists Forum, 2017) Cinar M.; Ceyhan A.; Yilmaz O.; Erdem H.The present study was performed to determine the effect of PGF2? and GnRH injections in different time intervals on fertility in Hair goats during breeding season. Totally, 80 primiparous Hair goats were divided into four groups (n=20 in each) according to the body condition scores of the animals. The animals in groups were treated as follows; first group (Ovsynch), GnRH on day 0, PGF2? on day 7 and GnRH on day 9; second group (2PG-G), PGF2? on day 0, PGF2? on day 7 and GnRH on day 9; third group (PG-G), PGF2? on day 7 and GnRH on day 9; fourth group (G), GnRH on day 9. Bucks were included into the groups on day 10-14 and insemination was performed during standing heat. Blood samples were collected to determine possible embryonic losses on day 21 for further analysis of serum progesterone concentrations. Transabdominal ultrasonography was performed to detect pregnancy on day 40-45. It was determined that in Ovsynch, 2PG-G, PG-G and G groups, estrous rate was 100%, 95%, 95% and 85%; pregnancy rate was 85%, 95%, 95% and 85%; kidding rate was 100%, 78.9%, 94.7% and 88.2%; twinning rate was 41.2%, 40%, 22.2%, 20%; litter size was 1.41, 1.40, 1.22, 1.20, respectively. However, these parameters did not show any significant difference between groups (P> 0.05). In conclusion, it is suggested that all treatment procedures may be used for estrous synchronization in Hair goats during breeding season due to the satisfactory results. © 2017, Pakistan Agricultural Scientists Forum. All rights reserved.Öğe Male condom use errors according to the female partner reports [Kadın partnerin bildirimine göre erkek kondomu kullanım hataları](Gulhane Askeri Tip Akademisi, 2010) Akin B.; Ege E.; Benli S.; Erdem H.The condom is important for the prevention of sexually transmitted infections, but its success depends on its correct use. The aim of this study was to examine male condom use errors according to the reports of the female partner. This was a descriptive study, and the study group consisted of 160 married women. A questionnaire was used to collect data. Chi-square and logistic regression tests were used for statistical analyses. Of the participants 77.5% reported one or more errors related condom use. The most common problems were "not checking the expiration date" (56.9%), "not examining for breakage after sex" (52.5%), "starting intercourse without a condom or taking it off later" (34.4%). Not receiving instruction about correct condom use was a risky factor in terms of "condom use error". Condom use errors were common and generally associated with insufficient instruction. © Gülhane Askeri Ti{dotless}p Akademisi 2010.Öğe Pregnancy diagnosis in ewes by real-time ultrasound(2006) Tasal I.; Dinç D.A.; Erdem H.; Semacan A.[Abstract not Available]Öğe Synchronization of estrus in cows using double PGF2?, GnRH-PGF2? and hCG-PGF2? combination(2003) Çoyan K.; Ataman M.B.; Erdem H.; Kaya A.; Kasikci G.The aim of this study was to compare the effectiveness of treatments combining GnRH and PGF2? hCG and PGF2? combinations, and double PGF2? administration for synchronization of estrus in cows. This study was carried out in 30 Brown Swiss cows, aging 3 - 5 years. The cows were randomly divided into three groups. In group I (n = 10), the cows were treated with an intramuscular injection of 20 ?g GnRH (day = 0) at a random stage of the estrous cycle followed by intramuscular injection of 0.150 mg PGF2? 7 days later (day = 7). In group II (n = 10), the cows were treated with an intravenous injection of 3000 IU hCG (day = 0) at a random stage of the estrous cycle followed by intramuscular injection of 0.150 mg PGF2? 7 days later (day = 7). In group III (n = 10), the cows were received two injections of 0.150 mg PGF2? 11 day apart (day = 0, and 11). GnRH (10 ?g) was injected intramuscularly to the cows 48 hours after the injection of PGF2? in the groups I and II, and after the second PGF2? in group III. The cows were inseminated 12 hours after the GnRH injections. Blood samples were collected daily to determine plasma progesterone levels for 13 days in the groups I and II, and for 15 days in the group III starting from the day of GnRH, hCG and first PGF2? injections respectively. The mean interval injections-estrus, injections-ovulation, synchronization and pregnancy rates of the groups were determined. Plasma progesterone levels on day 0 and at estrous were similar among the three groups, but it was significantly higher (p < 0.01) in the groups I and II than in the group III on the day of PGF2? administration. The mean GnRH injections-estrus and injections-ovulation interval in the groups I, II and III were 52.2 ± 1.69, 48.4 ± 1.34 and 68.2 ± 1.31 hours; 70.4 ± 1.17, 67.3 ± 1.36 and 90.6 ± 2.15 hours, respectively and were significantly different (p < 0.01). The synchronization rates tend to be higher in the groups I and II (100%) than in the group III (80%), and pregnancy rates of the groups I, II and III were 60%, 60% and 30%, respectively. As a conclusion, application of a GnRH and hCG analogue prior to synchronization of estrus with an injection of PGF2? may provide better results than two injections of PGF2? for estms synchronization in cows.
