Japanese Journal of Zoo and Wildlife Medicine最新文献

{"title":"Are Human Activities Stressful for Wildlife? : Evaluation of the Physiological Stress in the Japanese Giant Flying Squirrel Inhabiting Mt. Takao","authors":"An Iwamoto, Hiroyuki Okazaki, Toshiaki Yamamoto, T. Shimamoto","doi":"10.5686/jjzwm.26.27","DOIUrl":"https://doi.org/10.5686/jjzwm.26.27","url":null,"abstract":"","PeriodicalId":153831,"journal":{"name":"Japanese Journal of Zoo and Wildlife Medicine","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127214326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chewing Lice Found on Captive Tufted Puffin, Fratercula cirrhata","authors":"Sora Ohta, T. Yoshino, Natsumi Suzuki, Nami Tomisawa, Takaomi Ito, M. Asakawa","doi":"10.5686/jjzwm.26.43","DOIUrl":"https://doi.org/10.5686/jjzwm.26.43","url":null,"abstract":"The tufted puffin, Fratercula cirrhata , is a mediumsized seabird belonging to the family Alcidae and is widely distributed throughout the North Pacific Ocean. It breeds mainly on islands and cliffs in the Sea of Okhotsk, the Bering Sea, the Kuril Islands, Alaska, and the coast of California, and, in Japan, a small number of birds breed on islands in eastern Hokkaido. F. cirrhata is classified as 1A in the endangered species list, i.e., critically endangered, in the Japanese Red Data Book [1]. For species protection, research, and conservation, they are bred in captivity in aquariums in Japan. We have observed a case of concentrated parasitism by chewing lice on captive tufted puffins, and we report it as basic data for the captive breeding of this bird. In August 2020, a tufted puffin chick died on 3 days after hatching at an aquarium. A large number of chewing lice were found on the body surface during autopsy and were collected. The specimens were fixed in 70% ethanol and taken to the Wild Animal Medical Center (WAMC) of Rakuno Gakuen University for taxonomical examination. The lice were mounted in 70 % ethanol for microscopic observation, and morphological and biometric data were recorded using a lucida camera (OLYMPUS DP20). The lice specimens are preserved in the WAMC (Accession No. AS18180). Of these specimens, five adult males and 10 females were studied (Table 1; Fig. 1). The lice belonged to the family Philopteridae of the suborder Ischnocera, which was based on the following features: the snout did not extend from the head (Fig. 2), there were two claws on each leg, and the antennae were elongated and filiform with five sections. In addition, the abdominal length was greater than the width, the frontal tergum was conspicuous, and the frontal edge was flat and transparent but did not reach the ridge of the antennal anterior edge. There was a groove on the antennal anterior dorsal side, single genitalia, and there were no aneurysms with bristles on the external genitalia at the abdominal end of the female (Fig. 3). The specimens were identified as being of the genus Quadraceps according to Price et al. [2]. Based on the measurements and the shape of the male paramere [3,4], the lice were identified as Q. helgovauki (Timmermann, 1974). The genus Quadraceps mainly parasitizes birds of the order Charadriiformes, and approximately 120 Quadraceps species are currently known [2]. Eight of these species, namely Q. aethereus (Giebel, 1874), Q. alcae (Denny, 1842), Q. ambestrix (Timmermann, 1974), Q. antiquus (Timmermann, 1974), Q. helgovauki , Q. maritima (Kellogg and Chapman, 1899), Q. obliquus (Mjöberg, 1910), and Q. pacificus (Kellogg and * Corresponding author:Mitsuhiko ASAKAWA (E-mail: askam@rakuno.ac.jp) ♯ Co-first authors ABSTRACT During the postmortem of tufted puffin chicks (Fratercula cirrhata), who died a few days after hatching in the aquarium, a large number of chewing lice were collected. These lice were identified as Quadraceps he","PeriodicalId":153831,"journal":{"name":"Japanese Journal of Zoo and Wildlife Medicine","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132660700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Temporal Changes in the Parasite Fauna of the Large Japanese Field Mouse Apodemus speciosus in the Radioactive Contaminated Zone of Fukushima","authors":"Kyoka Kakiuchi, M. Asakawa, H. Ishiniwa, M. Tamaoki, M. Onuma","doi":"10.5686/JJZWM.26.1","DOIUrl":"https://doi.org/10.5686/JJZWM.26.1","url":null,"abstract":"We assessed the temporal changes in the parasite fauna of the large Japanese field mouse Apodemus speciosus, which served as a model to evaluate the biological effects of radioactive materials released upon the Fukushima Daiichi Nuclear Power Plant accident. Parasites were collected from 30 mice trapped before (1992) and after (2012 and 2014) the accident. Five species of parasites were identified; among these, Heterakis spumosa (Nematoda) was detected only before the accident and Raillietina coreensis (Cestoda) was detected only after the accident. This phenomenon may reflect accident-induced environmental changes affecting the abundance of paratenic and intermediate parasitic hosts. Regarding morphology, no malformations were observed in any of the isolated parasites.","PeriodicalId":153831,"journal":{"name":"Japanese Journal of Zoo and Wildlife Medicine","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128801488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ochetosoma kansense （Plagiorchiida: Ochetosomatidae） from Native Snake Species in Japan","authors":"T. Iwaki, Naoya Sata, H. Hasegawa, K. Matsuo, T. Nakano, T. Kojima","doi":"10.5686/JJZWM.25.129","DOIUrl":"https://doi.org/10.5686/JJZWM.25.129","url":null,"abstract":"","PeriodicalId":153831,"journal":{"name":"Japanese Journal of Zoo and Wildlife Medicine","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129363319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Outbreaks of Avian Poxvirus Infections in Cormorants in Yamanashi Prefecture during 2017 and 2019","authors":"Yohei Kobayashi, N. Mizutani, N. Ikenaga, M. Mase","doi":"10.5686/JJZWM.25.135","DOIUrl":"https://doi.org/10.5686/JJZWM.25.135","url":null,"abstract":"","PeriodicalId":153831,"journal":{"name":"Japanese Journal of Zoo and Wildlife Medicine","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123996693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Severe Jackknife-like Kyphosis Malformation in the Fetus of a Free-ranging Sika Deer (Cervus nippon)","authors":"A. Hata, Yuto Suda, M. Saeki, T. Shimamoto, H. Yoshimura, Masami Yamamoto, A. Fujiwara, S. Kamiya, M. Haritani","doi":"10.5686/JJZWM.25.141","DOIUrl":"https://doi.org/10.5686/JJZWM.25.141","url":null,"abstract":"A malformed fetus was found in the uterus of a hunted wild sika deer (Cervus nippon) in Japan. Computed tomography, gross pathological and histopathological examinations revealed multiple congenital deformities, including severe jackknife-like kyphosis, exposure of the abdominal viscera, cleft palate, cleft muzzle, excess dorsiflexion of the digits in the right forelimb, third and lateral ventriculomegaly, aberrant lobulation of the lung, and imperforate anus. No pathogens associated with congenital malformation in ruminants were detected. This case report is the first to describe a severe congenital fetal malformation in a free-ranging sika deer; however, the cause of the malformation remains unknown.","PeriodicalId":153831,"journal":{"name":"Japanese Journal of Zoo and Wildlife Medicine","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130104323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Molecular Epidemiological Analysis of Orf Viruses in Japanese Serows (Capricornis crispus)","authors":"Asari Takaiwa, K. Shimizu, Ayaka Okada, Y. Inoshima","doi":"10.5686/jjzwm.25.109","DOIUrl":"https://doi.org/10.5686/jjzwm.25.109","url":null,"abstract":"The orf virus infects sheep, goats, and Japanese serows (Capricornis crispus). It was first reported in Japanese serows in Iwate Prefecture in 1973, and has since spread among them throughout Japan. Because orf virus-susceptible livestock such as sheep and goats inhabits in Japan, there are the risk of transmission of Japanese serow-derived orf viruses to livestock. In this study, we determined nucleotide sequences (1,137 bp) of open reading frame (ORF) 11 of six strains isolated from Japanese serows and the Iwate strain isolated from sheep. Deduced amino acid sequences (378 aa) among them were 99-100% identical, indicating that ORF11 is highly conserved. Analysis of other regions of these viruses is needed to clarify the molecular epidemiological correlation among the Japanese strains.","PeriodicalId":153831,"journal":{"name":"Japanese Journal of Zoo and Wildlife Medicine","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130812649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Composition Analysis of the Colostrum and Attempted Hand-rearing of a Neglected Harbor Porpoise (Phocoena phocoena)","authors":"Marin Matsushiro, M. Tsunokawa, T. Matsuishi, Takanori Kooriyama","doi":"10.5686/jjzwm.25.81","DOIUrl":"https://doi.org/10.5686/jjzwm.25.81","url":null,"abstract":"The harbor porpoise is a marine mammal rarely seen in aquariums. The ecology of this species is not well known, and captive breeding is difficult without essential information such as milk composition, amount consumed and frequency nursed per day, and lactation period. At the Otaru Aquarium in Japan, several deliveries of harbor porpoise offspring have occurred, but the calves have not survived. In the present study, we analyzed the colostrum of a harbor porpoise and attempted to hand-rear a calf using artificial milk after the mother denied nursing. The crude fat and crude protein contents of the colostrum were relatively high compared to values for other odontocetes. The present information will be helpful for future efforts to hand-rear harbor porpoises.","PeriodicalId":153831,"journal":{"name":"Japanese Journal of Zoo and Wildlife Medicine","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125904613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Japanese Golden Eagle Conservation Science: Current Status and Future Needs","authors":"R. Ogden, Tomokazu Fukuda, Takayuki Funo, M. Komatsu, Takushi Maeda, A. Meredith, Masaya Miura, Haruki Natsukawa, M. Onuma, Yuki Osafune, Keisuke Saito, Yu Sato, Des B. A. Thompson, M. Murayama","doi":"10.5686/jjzwm.25.9","DOIUrl":"https://doi.org/10.5686/jjzwm.25.9","url":null,"abstract":"According to current trends in census size and reproduction, the Japanese golden eagle (Aquila chrysaetos japonica) is at risk of extinction this century, leading the Japanese government to recognize the subspecies as endangered. It is now the focus of national conservation efforts, yet gaps remain in our knowledge regarding the reasons for the observed population decline and how best to improve the situation. Over recent decades, scientific research concerning golden eagle conservation in Japan, and in other parts of the world, has established a multi-disciplinary body of evidence that should support plans for species restoration. However, until now, these strands of research have been largely separate, limiting the potential benefits offered by an inter-disciplinary approach. In this paper, we provide an integrated review of Japanese golden eagle conservation science, including studies of ecology, genetics, veterinary health and habitat management. We assess the status and trends in the wild and captive populations; identify current and future conservation management interventions and discuss the opportunities for taking an integrated approach to Japanese golden eagle conservation science through in-situ and ex-situ viewpoint. This review, prepared by national and international experts in golden eagle biology and health, describes outstanding scientific questions alongside potential practical solutions. It sets out a framework for applied research that will provide the information and techniques required to successfully reverse the decline in golden eagle numbers, and hopefully secure the long-term future of the species in Japan.","PeriodicalId":153831,"journal":{"name":"Japanese Journal of Zoo and Wildlife Medicine","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121819550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"鯨類の豚丹毒菌感染症を考える：特集論文の趣旨説明","authors":"","doi":"10.5686/jjzwm.24.127","DOIUrl":"https://doi.org/10.5686/jjzwm.24.127","url":null,"abstract":"","PeriodicalId":153831,"journal":{"name":"Japanese Journal of Zoo and Wildlife Medicine","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127855113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}