以超音波學探討白鼻心卵巢功能性變化及配種適期試驗

Ultrasonographic Appearance of the Ovarian Functional Changes during Consecutive Estrous Cycles and Breeding Trials in Female Formosan Gem-Faced Civets (Paguma Larvata Taivana)

10.7009/TVJ.200712.0217

劉世賢(Shyh-Shyan Liu)；劉炳燦(Bing-Tsan Liu)；馮翰鵬(Hang-Poung Fung)；鄭豐邦(Feng-Pang Cheng)

台灣白鼻心Paguma larvata taivana ； 卵巢超音波影像學 ； 配種適期 ； 內泌素 ； Formosan Gem-Faced civets Paguma larvata taivana ； ovarian ultrasoncgraphy ； optimal breeding time ； sex hormones

臺灣獸醫學雜誌

33卷3&4期（2007 / 12 / 01）

217 - 224

繁體中文

The female Formosan Gem-Faced Civets (Paguma larvata taivans) is classified to the non-seasonal polyestrous cycles. The ovarian activity has been previously reported by our team, based on sex hormone fluctuations. However, until recently the ultrasound graphic appearance of the ovary functional changes and the proper stage of mating remain undiscovered in this species. Six sexually matured female civets were scanned by ultrasonic liner transducer with 7.5 MHz on DO, D4, D7 (follicular phase), and D1O, D14, D18 (luteal phase) during two consecutive estrous cycles. Simultaneously, serum estradiol and progesterone were assayed. The breeding trials were carried out on D4, D6, D8, D1O, separately. The ultrasound image revealed the average number of emerging follicles in late stage of luteal phase and early stage of follicular phase were more than those in other stage (6±3 vs 6±1). On D14 (3±1), the diameter of these follicles were smaller than those in follicular phase (P＜0.05). The emergency of the corpus luteum was observed from D7 to Dl 8, but the significant increasing number was detected on D1O and D14 (5±2 vs 6±2). The diameter of corpus luteum on D7 and D10 (2.99±0.30, 3.14±0.18 mm) were wider than those in the other stages (P＜0.05). During the early stage of follicular phase, the vulva showed edematous/red mucous membranes and mucous secretion, some exhibited diapedesis. The concentration of serum progesterone (SP4) in DO was low (1.0±0.3 ng/mL), but concentration of serum estradiol (SE2) reached its peak in this phase (179.2±29.9 pg/mL). Gradually, the concentration of SP4 increased to the peak in D7 (4.7±1.0 ng/mL), and at this time point, SF2 dropped to the lowest concentration (67.0±14.5 pg/mL). The vulva of D7 exhibited obvious extrusion. The results of breeding trials suggest the optimal mating time was between D6 to D8 during which the concept rate was 100% (10/10). Relevant information obtained from this study could be beneficial to fut ure breeding and gynecologic medicine in Formosan Gem-Faced civets.

The female Formosan Gem-Faced Civets (Paguma larvata taivans) is classified to the non-seasonal polyestrous cycles. The ovarian activity has been previously reported by our team, based on sex hormone fluctuations. However, until recently the ultrasound graphic appearance of the ovary functional changes and the proper stage of mating remain undiscovered in this species. Six sexually matured female civets were scanned by ultrasonic liner transducer with 7.5 MHz on DO, D4, D7 (follicular phase), and D1O, D14, D18 (luteal phase) during two consecutive estrous cycles. Simultaneously, serum estradiol and progesterone were assayed. The breeding trials were carried out on D4, D6, D8, D1O, separately. The ultrasound image revealed the average number of emerging follicles in late stage of luteal phase and early stage of follicular phase were more than those in other stage (6±3 vs 6±1). On D14 (3±1), the diameter of these follicles were smaller than those in follicular phase (P＜0.05). The emergency of the corpus luteum was observed from D7 to Dl 8, but the significant increasing number was detected on D1O and D14 (5±2 vs 6±2). The diameter of corpus luteum on D7 and D10 (2.99±0.30, 3.14±0.18 mm) were wider than those in the other stages (P＜0.05). During the early stage of follicular phase, the vulva showed edematous/red mucous membranes and mucous secretion, some exhibited diapedesis. The concentration of serum progesterone (SP4) in DO was low (1.0±0.3 ng/mL), but concentration of serum estradiol (SE2) reached its peak in this phase (179.2±29.9 pg/mL). Gradually, the concentration of SP4 increased to the peak in D7 (4.7±1.0 ng/mL), and at this time point, SF2 dropped to the lowest concentration (67.0±14.5 pg/mL). The vulva of D7 exhibited obvious extrusion. The results of breeding trials suggest the optimal mating time was between D6 to D8 during which the concept rate was 100% (10/10). Relevant information obtained from this study could be beneficial to fut ure breeding and gynecologic medicine in Formosan Gem-Faced civets.