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71.
Fisheries Science - The thermal stability of myosin and the protective effect of F-actin on myosin in kuruma prawn myofibrils were investigated from the thermal inactivation rates at... 相似文献
72.
Kiyoshi AKIYAMA Jun KOBAYASHI Yoshimasa SATO Ryuichi SATA Megumi OHASHI Emi SASAKI Yorimasa ODA Yoshio OGAWA Shuji UEDA Hisashi NABENISHI Satoko MATOBA 《Animal Science Journal》2010,81(4):461-466
The objective of this study was to develop an in‐straw dilution method suitable for direct transfer of vitrified bovine sexed embryos. Embryo sexing was performed by molecular diagnosis. Several sexed and vitrified‐warmed embryos were transferred after evaluation of morphologically embryonic survival at warming and in‐straw dilution (Evaluation group). The other embryos were immediately directly transferred to recipients without first being expelled from the straws after in‐straw dilution (Non‐evaluation group). The pregnancy rates of vitrified sexed embryos were 38.7% and 34.8% in the Evaluation group and Non‐evaluation group, respectively, which were not significantly different. The viability of lower quality embryos before vitrification tended to be lower (P = 0.087) than that of the higher quality embryos regardless of evaluating embryos after warming and in‐straw dilution. The abortion rates were similar, and there was no difference between the two groups (13.9% and 12.5%, respectively). These results demonstrate that vitrified bovine sexed embryos can be vitrified and diluted by the in‐straw method and that the vitrified and warmed sexed embryos can develop to term. 相似文献
73.
Hiroki Inoue Shigehiro Kamoda Tamami Terada Yoshimasa Saburi 《Journal of Wood Science》1998,44(5):375-378
The contents of diterpenoids, ginkgolides A, B, and C, in seeds, embryos, and plantlets ofGinkgo biloba were analyzed to clarify the relations between organogenesis and terpene contents inG. biloba. There is so far no published report on the contents and changes in such terpenes in seeds and very young plantlets ofG. biloba. Ginkgolides were present in seeds and embryos. Plantlets cultured in both the dark and under illumination contained substantial amounts of ginkgolides, more abundant than in seeds and embryos. It is concluded that ginkgo yields ginkgolides in its early stage of development regardless of light. 相似文献
74.
Yasuno H Nagai H Ishimura Y Watanabe T Yamasaki H Anayama H Takai Y Yamauchi H Hara Y Murai F Kandori H 《Journal of toxicologic pathology》2011,24(2):131-135
The histologic characteristics of a salivary mucocele in a beagle used in a toxicity study are described in this report. A pale yellowish cyst under the mandibular skin containing frothy mucus was observed at necropsy. Microscopically, numerous villous projections arose from the internal surface of the cyst and were lined by stratified epithelial-like macrophages, which were immunopositive for macrophage scavenger receptor A. A ruptured sublingual interlobar duct connected to the lumen was observed near the cyst. Luminal amorphous material showed a positive reaction with Alcian blue and periodic acid-Schiff staining as did mucin in the sublingual gland. Ultrastructurally, the epithelial-like macrophages had numerous vacuoles containing electron-lucent material, which was presumed to be lysosomal in origin, and had pseudopods on their cell surfaces interdigitating with those on the adjacent cells. This case report helps to understand the diversity of the background findings in beagles used in toxicity studies. 相似文献
75.
Yoshimasa SASAKI Tsutomu NOZAWA-TAKEDA Kenzo YONEMITSU Tetsuo ASAI Hiroshi ASAKURA Hidetaka NAGAI 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2022,84(7):1029
As free-living crows are a potential source of Campylobacter infections in broilers and cattle, we characterized Campylobacter spp. isolated from crows using multilocus sequence typing and antimicrobial susceptibility testing. We obtained 82 samples from 27 birds captured at seven different times using a trap set in Tochigi prefecture, Japan. Campylobacter jejuni was isolated from 55 (67.1%) of the 82 samples and classified into 29 sequence types, of which 21 were novel. Tetracycline and streptomycin resistance rates were 18.2% and 3.6%, respectively. These results show that most types of C. jejuni infecting crows differ from those isolated from humans, broilers, and cattle. Thus, the importance of free-living crows as reservoirs of Campylobacter infections in broilers and cattle may be limited. 相似文献
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78.
Shoko Matsukawa Kazutoshi Ueno Toshihisa Sugino Yukinori Yoshimura Naoki Isobe 《Animal Science Journal》2018,89(8):1152-1160
The objective of the present study is to examine whether colostrum whey can have an effect on immune function in goats digestive tract. Two milliliters of colostrum whey (colostrum group) or water (control group) were administrated orally to goats every day for 3 weeks. Blood was collected twice a week for 3 weeks to measure immunoglobulin A (IgA), interleukin 8 (IL‐8), and IL‐10. At the end of the experimental period, the parotid glands, oral mucosa, lingua, esophagus, jejunum, and ileum were collected for immunohistochemical detection of IgA, cathelicidin‐7, and S100A8. The ratio of the length of IgA‐positive mucosal surface in the esophagus to the total esophageal length was significantly greater in the colostrum group than in the control group. The number of IgA‐positive cells in the labial gland and ileum in the colostrum group was significantly higher than that in the control group. There were no significant differences between the colostrum and control groups in the number of cathelicidin‐7‐positive cells in the jejunum and ileum and in the number of S100A8‐positive cells in the lingua, jejunum, and ileum. These results suggest that colostrum stimulates the recruitment of plasma cells into the labial gland, which then secrete more IgA into the saliva. 相似文献
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80.
DNA fragments of Anaplasma bovis and Anaplasma phagocytophilum were detected in cattle on Yonaguni Island, Okinawa, Japan. Although the pathogenesis and epidemiology of these pathogens have not yet been clarified, this is the first detection of their presence in cattle from Japan. 相似文献