Browsing by Author "Cetin, Y."

Now showing 1 - 10 of 10

Administration of Short-Acting Deslorelin Implant (Ovuplantr) in Seasonally Anestrous Colored Mohair Goats
(Wiley-blackwell, 2011) Uslu, B. A.; Sendag, S.; Tasal, I.; Cetin, Y.; Wehrend, A.
Cervical Leiomyoma in a Dairy Cow During Pregnancy
(Elsevier Science Bv, 2008) Sendag, S.; Cetin, Y.; Alan, M.; Llhan, F.; Eski, F.; Wehrend, A.
In the present report we describe a case of cervical leiomyoma that was diagnosed at parturition in a Holstein cow. The tumor mass, which measured 25.5 cm x 21.5 cm x 14.5 cm in size and weighed 4.5 kg, was removed surgically. The tumor was solid, well circumscribed, whitish-pink colored, and encapsulated. The tumor was diagnosed as leiomyoma. The leiomyoma. had no adverse effects on pregnancy. This is the first report of a bovine cervical leiomyoma during parturition. (c) 2007 Elsevier B.V. All rights reserved.
Effect of Estrogen/Drospirenon Combinations and Tibolone on Serum Leptin Levels in Ovariectomized Rats
(Wiley-blackwell, 2011) Alkis, I.; Sendag, S.; Tasal, I.; Cetin, Y.; Wehrend, A.
Effects of Cidr-G and Melatonin Implants, and Their Combination on the Efficacy of Oestrus Induction and Fertility of Kilis Goats
(Wiley, 2009) Cetin, Y.; Sagcan, S.; Gungor, O.; Ozyurtlu, N.; Uslu, B. A.
The objective of this study was to compare the efficiency of oestrus induction protocols on Kilis dairy goats kept on a goat farm situated close to Kilis, Turkey. Eighty goats were assigned randomly into four groups of 20 animals each in a factorial arrangement: (i) untreated control (CON), (ii) melatonin implant (MEL), (iii) CIDR-G (CIDR) and (iv) melatonin implant plus CIDR-G (MC). Experiments were performed in mid-anoestrus season under natural photoperiod environment. The differences among treatment groups in oestrus response were significant. Oestrus response was higher in the MC group than in other groups (p < 0.05). A significant difference was observed in the time interval from cessation of treatment to the onset of oestrus among treatments. The CIDR-G treatment reduced intervals from buck introduction to oestrus. The time to onset of oestrus in both the MC and CIDR groups was significantly shorter, compared with the MEL and CON groups (p < 0.05). The number of does kidding and fertility were not different among treatment groups (p > 0.05). Fecundity was similar among goats in all groups. Prolificacy and twining rates showed similar trends as fecundity rates, with no differences (p > 0.05) between treatments. The results of this study showed that oestrus in Kilis does can be effectively induced by using melatonin and CIDR combined treatment, and fertility will not be adversely affected. However, this treatment did not improve fecundity, prolificacy and twining rates.
Effects of Postpartum Intrauterine Treatments on Reproductive Performance of Dairy Cows
(Wiley, 2018) Cetin, Y.; Gungor, O.; Tasal, I.; Sipahi, C.; Sendag, S.; Wehrend, A.
Laboratory Diagnostics in the Urine of Young and Pregnant Ewes
(Schattauer GmbH, 2011) Sendag, S.; Cetin, Y.; Failing, K.; Wehrend, A.
Objective: The purpose of this study was to identify values for net acid base excretion (NABE) which are significant indicators of the acid-base equilibrium in pregnant and young ewes and to show its relationship with other parameters (base, acid, ammonium [NH4], base-acid quotient, sodium [Na], potassium [K], calcium [Ca]) in ovine urine. In contrast to dairy cows, data are rare on these parameters in ewes. Material and methods: A total of 99 animals were used in the study, consisting of 56 young (average of 5.6 ± 1.1 months) and 43 pregnant ewes (average of 35.2 ± 18.8 months). Measurement of fractional NABE in urine samples was carried out according to the method reported by Kutas. The pH value of the urine was measured with a laboratory pH meter. Na, K and total Ca were measured with a flame photometer. Results: For all values except Na significant differences occurred between urine samples of pregnant ewes and young ewes (p < 0.001). Base, acid, NH 4, NABE, K and Ca values were significantly higher in the urine of the youngs than in pregnant ewes. In young ewes, a strong correlation was found between NABE and base values while a weak correlation could be observed between pH and base values. In pregnant ewes, strong NABE-base, NABE-K, K-acid and K-base correlations were found as well as weak NH4-base, NH 4-NABE and NH4-K correlations. There was a strongly positive correlation between NABE and NH4 in pregnant ewes, while a weak negative correlation between those values was observed in young ewes. Conclusion: For the first time, we established values for NABE and certain other parameters in urine of pregnant ewes and young ewes. It was shown that the acid-base balance in pregnant ewes and young ewes can be evaluated by measuring NABE and certain trace elements in urine like in cattle.
Long Term Suppression of Estrus and Prevention of Pregnancy by Deslorelin Implant in Rats: a Preliminary Report
(Wiley-blackwell, 2011) Alkis, I.; Cetin, Y.; Sendag, S.; Wehrend, A.
Long-Term Effect of Deslorelin Implant on Ovarian Pre-Antral Follicles and Uterine Histology in Female Rats
(Wiley, 2013) Cetin, Y.; Alkis, I.; Sendag, S.; Ragbetli, M.; Akyol, V.; Ucar, O.; Wehrend, A.
Contents The objective of the present study was to investigate the inhibitory effects of long-term deslorelin implant administration on the ovarian and uterine structures of female rats. A total of 16 non-pregnant female rats were randomly assigned to two groups, each consisting of eight animals. Animals in the implant group (DESL) received subcutaneously (s.c.) a single deslorelin implant (4.7mg), an analogue of GnRH, while no treatment was applied to the control group (CON). A single adult male rat was introduced into the cages of both the DESL and CON females after 6weeks of implant administration. After 1year of implant administration, all animals were killed and follicular structures and volumes of ovaries and uterus were examined using stereological methods. Stereological observations showed that the mean ovarian total volume of the DESL group (0.28 +/- 0.07cm3) was lower than that of the CON group (1.55 +/- 0.23cm3) (p<0.001). On the other hand, the total number of pre-antral follicles in the ovaries of DESL (555.32 +/- 151.47) females were significantly lower than the control group (1162.96 +/- 189.19) (p<0.001). In the DESL group, the mean volumes of epithelium, endometrium, myometrium and total volume of the uterus were significantly (p<0.001) lower than in the control groups. In conclusion, these findings indicate that the long-term deslorelin implant (i) interferes with the normal cyclicity of female rats and (ii) affects the pre-antral follicle population. Further studies will be required to determine the effects of long-term deslorelin treatment on the pre-antral follicle numbers and future fertility in other species.
Long-Term Effects of Deslorelin on Ovarian Preantral Follicle Number in Female Rats: Preliminary Stereological Observations
(Wiley-blackwell, 2011) Alkis, I.; Sendag, S.; Cetin, Y.; Akyol, V.; Ragbetli, C.; Wehrend, A.; Ragbetli, M.
True Vaginal Prolapse in a Bitch
(Elsevier Science Bv, 2007) Alan, M.; Cetin, Y.; Sendag, S.; Eski, F.
Frequently, vaginal fold prolapse is the protrusion of edematous vaginal tissue into and through the opening of the vulva occurring during proestrus and estrus stages of the sexual cycle. True vaginal prolapse may occur near parturition, as the concentration of serum progesterone declines and the concentration of serum oestrogen increases. In the bitch, this type of true vaginal prolapse is a very rare condition. This short communication describes a 5-year-old female, cross-breed dog in moderate condition, weighing 33 kg, with distocia and true vaginal prolapse. Abdominal palpation and transabdominal ultrasonography revealed live and dead foetuses in the uterine horns. One dead and four live fetuses were removed from uterus by cesarean section. The ovariohysterectomy was performed after repositioning the vaginal wall with a combination of traction from within the abdomen and external manipulation through the vulva. Re-occurrence of a vaginal prolapse was not observed and the bitch recovered completely after the surgical therapy. Compared to other vaginal disorders, vaginal prolapse is an uncommon condition in the bitch. In the present case, extreme tenesmus arising from distocia may have predisposed to the vaginal prolapse. The cause of dystocia was probably the disposition of the first foetus. We concluded that the vaginal prolapse was the result of dystocia in the present case. (c) 2006 Elsevier B.V. All rights reserved.