http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Reproductive System of a Pregnant Patagonian Mara(Dolichotis patagonum)
용환율 사단법인 한국동물생명공학회 2009 한국동물생명공학회지 Vol.24 No.3
Maras (Dolichotis patagonum) are monogamous and mate for life. A pregnant mara, 6.15 kg, died after forelimb amputation surgery at Seoul Zoo on February 28, 2009. In the bicornial uteri, two fetuses were found in each uterine horn. The placenta was chorioallantoic, hemochorial, discoidal and labyrinthic. The entrance of cervix had a deep fornix and no cervical folds were observed in the cervix. This report is the first about Patagonian mara and helpful for clinicians who deal currently or in the future with exotic pet animals.
Reproductive System of Giraffe (Giraffa camelopardalis)
용환율 사단법인 한국동물생명공학회 2009 한국동물생명공학회지 Vol.24 No.4
Two postmortem male and female reticulated giraffes were examined. The adult male giraffe showed sigmoid flexure of penis similar to most ungulates. Epididymis was well-developed and divided with head, body and tail parts. On the tip of penis, there was a urethral process. At the necropsy of a 20-month-old and nulliparous giraffe, ovaries, oviducts, two uterine horns with a septum and a cervix were distinctively shown. Understanding reproductive organs of giraffes would be beneficial to succeed in artificial breeding on this species especially in the difficult situation of importing hoofed animals.
Estrous Synchronization and Artificial Inseminationin in European Mouflon (Ovis gmelini musimon)
용환율,배복수,손천수,손고태,전강희,송인준,강신근,구대창,이주형,김현율,김승동 사단법인 한국동물생명공학회 2009 한국동물생명공학회지 Vol.24 No.4
To establish a protocol of estrus induction and synchronization in European mouflon, we performed artificial insemination using frozen-thawed semen and exogenous hormones. CIDR was inserted into vaginas of four mouflons for 16 days. A day before removal of CIDR, PG 600 was injected intramuscularly. PGF2α was injected when removing CIDR. Artificial insemination was cervically conducted with injecting LHRH 48 hours after CIDR withdrawal. Even though no pregnancy was confirmed, estrous signs were notified like open cervix, congestion of vaginal wall and discharge of cervical mucus. Further research in the wild sheep would be needed for development of artificial breeding methods and advancing sustainability of domestic zoos.
용환율 사단법인 한국동물생명공학회 2010 한국동물생명공학회지 Vol.25 No.1
A necropsy of a primiparous, 4-year-old, Himalayan tahr (Hemitragus jemlahicus) was performed in September 8, 2009. Typical appearances of ovaries, oviducts, uterine horns, cervix and caruncles were well shown. Five cervical folds were present in the cervix. Cervical opening can be reached in the length of less than 15 cm from the entrance of vagina. Development of two follicles was found in the left ovary even though breeding season of this species naturally starts in late November. The reproductive organs of a primiparous, 3-year-old, Corriedale sheep showed that differences in the length and morphological appearance of cervix exist between two species. Comparative understanding of reproductive systems in Himalayan tahr and Corriedale sheep could help advancing assisted reproductive technologies in feral goats.
용환율,박정은,손천수 사단법인 한국동물생명공학회 2009 한국동물생명공학회지 Vol.24 No.3
Most captive canids and felids at Zoos in advanced countries have been examined enough to apply artificial reproductive techniques to them. We investigated reproductive hormones and vaginal epithelial cells of a 6-year-old, female coyote, hoping these data could eventually be extended to artificial insemination with frozen-thawed conspecific semen at Seoul Zoo. As a relative of pet dogs, coyote exhibited a similar appearance with only minor differences. In vaginal smear, an increase in the number of superficial cells suggests that the bitch has reached a state close to estrus. A sudden decrease of estradiol and increase of progesterone is considered as a preovulatory event. Vaginal epithelial cells and hormones might be useful for determining the optimal time of artificial insemination in coyotes’ breeding.
Tongue Surgery of a Dairy Cow Showing a Consistent Intersucking Behavior
용환율,조종기,김성기 한국임상수의학회 2008 한국임상수의학회지 Vol.25 No.2
On a dairy farm, a Holstein cow had consistently shown an intersucking behavior within the milking herd. It has been considered as one of several behavioral disorders primarily coming from feeding management failure during weaning period. Due to their behavior, injured teats of other milking cows could decrease milk production. Through tongue surgery, by producing a convex shape of the dorsum of the tongue after suturing the excised ventral region, the intersucking behavior was forcefully corrected and disappeared thereafter within the dairy herd without any complications.
Baby Giraffe Rope-Pulled Out of Mother Suffering from Dystocia without Proper Restraint Device
용환율,박석현,최명근,정소영,구대창,유종태,유미진,유미현,어경연,여용구,강신근,김헌열 한국임상수의학회 2009 한국임상수의학회지 Vol.26 No.1
A 4-year-old female reticulated giraffe (Giraffa camelopardalis reticulata), at Seoul Zoo, Gwacheon, Korea had a male calf with no help of proper restraint devices. The mother giraffe was in a danger of dystocia more than 7 hours in labor after showing the calf’s toe of the foreleg which protruded from her vulva. After tugging with a snare of rope on the metacarpal bone of the calf and pulling it, the other toe emerged. Finally, with two snares around each of metacarpal bones, the calf was completely pulled out by zoo staff. After parturition, the dam was in normal condition for taking care of the calf and her progesterone hormone had also dropped down to a normal pre-pregnancy.
Application of Endometrial Biopsy in the Horse
용환율 한국임상수의학회 2007 한국임상수의학회지 Vol.24 No.2
Endometrial biopsy in the horse is an important technique for maintaining breeding soundness by detectingmare had been in trouble with repeated breeding for getting pregnant before the sample of endometrial biopsy wasoffered to investigate the posibility of pregnancy in the future. Based on the tisue sections examined, the prognosisfor this mare to conceive and successfully carry a foal to term was estimated to be 10 to 50%.
Tooth Wear of Two Male Giraffes (Giraffa camelopardalis) in Winter Season
용환율 사단법인 한국동물생명공학회 2010 한국동물생명공학회지 Vol.25 No.3
Two male reticulated giraffes (Giraffa camelopardalis reticulata), 21-year-old, died of nutritional deficiency that primarily caused by serious tooth wear at Seoul Zoo in winter. A 970 kg-weighed giraffe showed tooth wear of premolars, molars and incisors at necropsy. A foreign body in the rumen, congestion and ulcer of abomasum and duodenum were also observed. Mild appearance of serous fat atrophy in pericardial sac suggests that lack of nutritional intake caused by tooth wear can become harmful enough to threat life. At the necropsy of a 1,290 kg-weighed giraffe,a large quantity of sandy soil were found in the rumen which would stuck the pathway of well-fermented ruminal contents at esophageal groove. Nutritional deficiency could be suspected to urge this giraffe to graze grass on the ground along with sandy soil. Secondarily, the soil damaged teeth and become a culprit making irregular tooth wear and mild serous fat atrophy. Nutritionally good care of geriatric animals is needed especially for browsing animals like giraffes and critically in winter season.
용환율,김승동,배복수 한국임상수의학회 2010 한국임상수의학회지 Vol.27 No.2
A female Saanen goat was pregnated by a Markhor (Capra falconeri) and three Himalayan tahrs (Hemitragus jemlahicus) were mismated by a conspecific male at Seoul zoo. Cross-breeding whether intentional or unintentional is considered opposite to the primary rule of species conservation. The Markhor, imported in October, 2002, having the number of chromosomes (2n = 60) same as domestic goats accidently mated with a Saanen goat. The mating time was back-calculated on the basis of zookeepers’ record. The Saanen and three Himalayan tahrs (2n = 48) were successfully aborted by intramuscularly injecting 15mg PGF2α (dinoprost tromethamine).