• Title/Summary/Keyword: ovary

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Ovarian Activity of Dromedary (Single Humped) Camel (Camelus dromedarius) in North-Eastern Nigeria

  • Yahaya, M.S.;Takahashi, J.;Matsuoka, S.;Alaku, O.
    • Asian-Australasian Journal of Animal Sciences
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    • v.12 no.6
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    • pp.868-870
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    • 1999
  • A total of 69 ovaries were collected from 345 camels slaughtered in Maiduguri abattoir, North-Eastern part of Nigeria, to study the influence of season on ovary weight and corpus luteum count in the dromedary (single humped) camel (Camelus dromedaries). Right ovary was significantly heavier (p<0.01) and had more follicular fluid than the left. Although corpus luteum count increased gradually throughout the study period, no camel had 3 active corpora lutea and only 53 out of the total number had two. Ovarian activity seem to be higher in the cold dry harmattan season, November/December, than during the warmer post rainy season, September/October. These periods can be exploited by farmers, especially peasants who rely heavily on natural mating, to obtain greater conception rates and reduce the chance of failure during mating.

Effect of the Presence of Corpus Luteum on Oocyte Recovery and Subsequent in vitro Maturation and Fertilization in Buffaloes

  • Singh, Sajjan;Dhanda, O.P.;Malik, R.K.
    • Asian-Australasian Journal of Animal Sciences
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    • v.14 no.12
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    • pp.1675-1677
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    • 2001
  • The effect of the presence or absence of corpus luteum in the ovaries of slaughtered buffaloes was studied for the oocytes recovery and their subsequent maturation and fertilization in vitro. On an average, 0.41 and 0.67 oocytes per ovary were recovered from ovaries with and without corpus luteum, respectively. Immature oocytes were matured in TCM-199 medium. Significant difference was observed in maturation rate between good (74%) and fair (37%) oocytes. However, there was no significant difference in cleavage rate between the two types. The results of this study show that although the presence of corpus luteum in the ovary at the time of recovery significantly affected availability of total oocytes and in-vitro maturation, but fertilization and cleavage remained unaffected under in vitro conditions.

Histological Changes of the Ovary and the Uterus of Guinea pigs Administerd Radioiodine (방사성옥소(131I)가 Guinea pig의 난소조직과 자궁조직에 미치는 영향)

  • Lee, Heung Shik;Lee, Kang Wook;Shin, Kwang Soon
    • Korean Journal of Veterinary Research
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    • v.13 no.1
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    • pp.1-4
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    • 1973
  • This experiment was performed in order to investigate the effect of radioiodine upon the uterus and the ovary of guinea pigs. The animals were injected single dose of 4. 5 mCi of radioiodine per kg of body weight. They were sacrificed on various time intervals; 1, 7, 14, 28, 42 and 56 days after the injection. The results were as follows: 1. In the ovary, the follicle cells and the ova were degenerated with lapse of time after the injection. 2. In the uterus, hyperplasia of the lamina propria of the endometrium and atrophy of the myometrium were observed in accordance with time after the injection.

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Case of Squamous Cell Carcinoma Arising in Mature Cystic Teratoma of the Ovary - A case report - (난소의 성숙기형종에서 발생한 편평세포암종 - 1예 보고)

  • Jo, Hyang-Jeong;Moon, Hyung-Bae
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.24 no.6
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    • pp.1059-1061
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    • 2010
  • Mature cystic teratoma is a common ovarian lesion, approximately 10-20% of ovarian tumor. However, it can undergo a malignant transformation, but incidence of malignant transformation is very low. Squamous cell carcinoma is the most common type of malignant transformation in the mature cystic teratoma. Preoperative diagnosis of malignant transformation in the mature cystic teratoma is very difficult, because malignant transformed tissues are very small in the mature cystic teratoma components. And so most of the carcinoma arising in mature cystic teratoma were diagnosed after histologic examination. We experienced a case of squamous cell carcinoma arising in the mature cystic teratoma of the ovary and report a case with a brief review of the literatures.

Application of in vitro ovary culture for cottonwood (Populus deltoides) breeding

  • Kang, Ho-Duck;Lee, Min-Soon
    • Plant Resources
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    • v.7 no.2
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    • pp.87-92
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    • 2004
  • Five different poplar hybrids were tested for rescuing embryo to elongate in vitro plantiets after hybridization. Ovaries and ovules were cultured on Woody Plant Medium (WPM) supplemented with cytokinins, 6-benzylamine (BA) and zeatin. Multiple shoots were initiated from half section of capsule with immature embryos after 21 days from pollination and tiny shoots were formed after the expansion of cotyledons in ovule cultures. Germinating response was better in intraspecific hybrids $(6.53\pm1.66)$ than interspecific crosses $(0.93\pm0.54)$ from half section of capsules on WPM medium. In general, zeatin was better than BA in inducing multiple shoots from isolated ovules. The highest average number $(19.40\pm4.53)$ of shoots was produced from immature ovules of 21 days post-pollination of WPM medium supplemented with 5.0 mg/L zeatin. The highest percentage of germination was 93% from the half section of in vitro ovary cultures. Soil acclimation was successfully conducted in cell tray containing artificially mixed soil with 96% survival rate.

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A case of canine bilateral ovary granulosa cell tumor and mammary complex carcinoma

  • Chung, Yung-Ho;Hong, Sunhwa;Han, Sang-Jun;Kim, Okjin
    • Korean Journal of Veterinary Service
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    • v.36 no.2
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    • pp.127-132
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    • 2013
  • An 11-year-old poodle bitch was presented for investigation of multicentric mammary masses. Abdominal sonography and radiography demonstrated abnormal enlargement of uterus and ovaries. Blood analysis revealed high progesterone concentration. The ovariohysterectomy and mastectomy were performed. Histopathologically, the mammary masses revealed complex carcinoma-tubulopapillary carcinoma with papillary pattern and tubule pattern. In the uterus, cystic endometrial hyperplasia was observed. Scattered inflammatory cells were observed in the endometrial stroma and mucinous material was protruded from endometrial surface. Also, in the ovaries, bilateral ovary granulosa cell tumor was detected. The bitch made a complete recovery following the ovariohysterectomy and mastectomy. This case was a very rare multiple tumor occurrence with bilateral ovary granulosa cell tumor and mammary complex carcinoma. High progesterone concentration was characterized clinically in the bitch.

A Case Study on Inferility with Obesity and Polycystic Ovary (다낭성난소 소견을 동반한 비만여성 불임 치험 1례 : 증례보고)

  • Lee, Jae-Sung
    • Journal of Korean Medicine for Obesity Research
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    • v.5 no.1
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    • pp.157-163
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    • 2005
  • Obesity may induce an amenorrhea and ovulation disorder resulted from endocrine dysfunction, and so it is closely linked to infertility. Recently I've experienced a case that a woman complained of infertility with ovulation disorder, polycystic ovary and obesity has succeeded in pregnancy and delivery by the treatment of weight reduction during 2 months.

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A Study on the Ovarian Cycle of Asian Toad (Bufo gargarizans) (두꺼비 (Bufo gargarizans) 난소주기에 관한 연구)

  • Park, Se-Hwa;Ko, Sun-Kun
    • Korean Journal of Environmental Biology
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    • v.33 no.4
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    • pp.419-424
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    • 2015
  • In order to determine the ovarian cycle of Asian Toad, Bufo gargarizans, the developmental stage based on the gonadosomatic index (GSI), size of follicle oocytes in ovary and vitellogenesis for adult females were investigated all around the year. The weight of ovary and GSI were the lowest from April, and all follicle oocytes exist in the pre-vitellogenic form, indicating that the vitellogenesis was suspended. The follicle oocytes in early-vitellogenic stage appeared in ovary during may when the weight of ovary and GSI start to increased, and the follicle oocytes in mid-vitellogenic and pre-vitellogenic stages existed during June and the weight of ovary and GSI also increased. This indicates that vitellogenesis has been carried out actively during this period. The follicle oocytes in mid-vitellogenic stage and late-vitellogenic stage when the vitellogenesis was also completed existed on September. Post-vitellogenic follicle oocytes after vitellogenesis started to appear from October and rapidly increased from December in hibernation. The full grown follicle oocytes existed during February, indicating the ovarian cycle that all follicle oocytes in ovary are developed separately, not synchronized, during the growing period of follicle oocytes and the post-vitellogenic follicle oocytes are maintained the ovulation period.

A Study on the Ovarian Cycle of Korean Brown Frog (Rana coreana) (한국산개구리(Rana coreana) 난소주기에 관한 연구)

  • Shin, Jung-Min;Ko, Sun-Kun
    • Korean Journal of Environment and Ecology
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    • v.28 no.3
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    • pp.287-292
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    • 2014
  • In order to determine the ovarian cycle of Korean brown frog, Rana coreana, the developmental stage based on the gonadosomatic index (GSI), size of follicle oocytes in ovary and vitellogenesis for adult females were investigated all around the year. The weight of ovary and GSI were the lowest from March to May, and all follicle oocytes existed in the pre-vitellogenic form, indicating that the vitellogenesis was suspended. The follicle oocytes in early-vitellogenic stage appeared in ovary during June when the weight of ovary and GSI started to increase, and the follicle oocytes in mid-vitellogenic and pre-vitellogenic stages existed during August and the weight of ovary and GSI also increased. This indicates that vitellogenesis has been carried out actively during this period. The follicle oocytes in mid-vitellogenic stage and late-vitellogenic stage when the vitellogenesis was also completed existed between September and November. Post-vitellogenic follicle oocytes after vitellogenesis started to appear from December in hibernation, and the full grown follicle oocytes existed during February, indicating the ovarian cycle that all follicle oocytes in ovary are developed separately, not synchronized, during the growing period of follicle oocytes and the post-vitellogenic follicle oocytes are maintained the ovulation period.

Effects of host plants on the pupal weight and number of eggs in the ovary of the fall webworm, Hyphantria cuncunea Drury -Correlation between the pupal weight and the number of eggs­ (흰불나방의 용중과 포란수에 미치는 기주식물의 영향 -용중과 포난수와의 상관-)

  • Choi S. Y.
    • Korean journal of applied entomology
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    • v.7
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    • pp.33-37
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    • 1969
  • This experiment was conducted to investigate the vriabibities of the pupal weight and the number of eggs in the ovary of the fall webworm, Hyphantria cunea Drury. collected from the seven different host plants in the field. The correlation between the pupal weight and the number of eggs in the ovary was studied in connection with the species of the host plants. The results obtained were as follows. I) The pupal eight was varied with the species of the host plants and sexes. The order of average female pupal weight was Populus euramericanal Guinier(206.6 mg). Juglans mandshurica Max. (J97.8 mg). Platanus orientalis L. (182.4 mg). Acer neugndo L. (172.2 mg). Taxodium distichum Rich. (172.1 mg). Salix babylonica L. (128.8 mg) and Prunus serrulata var. spontanea (Max). Wilson (103.4 mg). and of the average male pupal weight. T. distichum (125.2 mg). P. orientalis (123.5mg). J. mandshurica (114.4 mg). A. negundo (109.5 mg). Peuramericana (106.3mg). S. babylonica (94.3 mg). and P. serrulata var. spontanea(74.6 mg). The weight of female pupae was greater than that of male pupae in all case. 2) The unmber of eggs in the ovary was also vaied with the species of the host plants. The order of the average number of eggs in the ovary was P. euramericana(1331.1). J. mandshurica(I239.9). T. disichum (1237.0). A. negundo (1186.9). P. orientalis (1145.5), S. babylonica (800.0) and P. serrulata var. spontanea (641.5). 3) The number of eggs in the ovary for all the host plants tested was highly correlated with the pupal weight.

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