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Forty vancomycin‐resistant enterococci (VRE) were isolated from feces of pigs in one pig farm. Two strains were further elucidated and these were biochemically identified as Enterococcus faecium possessing the vanB gene. These isolates showed high resistance to vancomycin and nine other antibiotics. This is the first report of VRE contamination in pigs in Japan. 相似文献
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D. K. SAKAI 《Journal of fish diseases》1984,7(1):29-38
Abstract. Opsonic activities of fish antibody and complement in the phagocytic responses of fish leucocytes have been investigated using salmonid peritoneal exudate cells (PEC) and viable cells of Aeromonas salmonicida as antigenic particles. PEC were isolated from liquid paraffin-injected coho salmon, masu salmon and rainbow trout. After incubation at 20°C for 2 h, phagocytosis by PEC was evaluated. Phagocytic activity was attributed to neutrophil-like and macrophage-like cells, though in the absence of immune serum activity was low. The addition of fish antibody (heal-inactivated antiserum) slightly increased the activity. On the addition of normal serum as a complement source phagocytic activity was dramatically accelerated. This acceleration was interpreted as opsonization as a result of the classical pathway activation of fish complement by an antigen-antibody reaction. The complement of mammals (goat, guinea pig and rabbit) did not possess opsonic activity in the presence of fish antibody. 相似文献
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Ryoko INOUE Ikumi JOMA Koji OTSUBO Hiroshi MATSUTAKE Tokuma YANAI Hiroki SAKAI 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2016,78(1):117-119
A cardiac mass (3 × 5 × 3 cm) was detected at the base between the right
auricular wall and right vena cava of a slaughtered 6-month-old female mixed-breed pig
during a meat inspection. The tumor comprised infiltrative prominent interweaving
fascicles of Schwann cells with Verocay bodies. Moreover, the ganglion cells were
scattered or aggregated throughout the neoplastic tissue. The ganglion and Schwann cells
had neither cellular atypism nor mitosis. On the basis of the bearing site as well as the
morphological and immunohistochemical features, this is the first case of a cardiac
ganglioneuroma in a pig. 相似文献
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Feed intake, lactation performance, blood metabolites and fertility in early lactation dairy cows grazing a timothy pasture 总被引:2,自引:0,他引:2
Tsutomu OHGI Satoshi HARA Tadao OZEKI Mamiko FUJITA Osamu SAKAI Hirotaka KASHUYA Akira DOUKOSHI Kazuyuki NISHIMURA 《Animal Science Journal》2006,77(2):215-222
The present study was conducted to investigate feed intake, milk yield, milk composition, blood metabolites and fertility in early lactation dairy cows grazing a timothy pasture. Fourteen multiparous Holstein cows that calved between 20 May and 19 July were used over a 3‐year period. The stocking rate was 3.6–4.3 cow/ha. Concentrates were fed separately at 9.5–11.5 kg/day per cow (dry matter basis) from 1 to 13 weeks postparturition. Herbage intake was estimated using chromium oxide as an indigestible marker. The mean contents of crude protein, total digestible nutrients and neutral detergent fiber of pasture during the 3‐year study period were 22.3%, 71.8% and 51.7%, and those of total diet were 18.9%, 77.3% and 40.3%, respectively. The mean herbage dry matter intake was 13.0 kg/day from 2 to 13 weeks postparturition during the study, total dry matter intake was 23.7 kg/day, the total digestible nutrients sufficiency rate was 105%, milk yield was 39.7 kg/day, and milk fat percentage was 3.30%. The decrease in bodyweight postparturition was slight. Urea nitrogen concentrations in serum were below 18.3 mg/dL. The mean days to first estrus and days open were 36 and 104 days, respectively. These results indicate that energy deficiency, decrease in bodyweight and fertility in early lactation barely occur when high producing dairy cows are fed enough grazing grass and suitable concentrates. 相似文献
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KO FUJIOKA ALISTAIR J. HOBDAY RYO KAWABE KAZUSHI MIYASHITA YOSHIMI TAKAO OSAMU SAKAI TOMOYUKI ITOH 《Fisheries Oceanography》2012,21(4):269-280
The arrival of the warm tropical Leeuwin Current (LC) into southern Western Australia (SWA) may influence the movement timing and foraging habitat of juvenile southern bluefin tuna (SBT). Seasonal and interannual changes in the strength of the LC lead to thermal differences and potential changes in food availability between tropical and temperate waters in SWA. This phenomenon could influence the habitat utilization of SBT in these summer grounds. Movement characteristics determined from SBT tagged with acoustic transmitters (N = 244) using cross‐shelf lines of automated receivers for three summer‐autumn seasons (2004/2005, 2005/2006, 2006/2007) in SWA revealed interannual variability. Each year, the eastward movements of tagged fish increased as temperatures increased, and fish left the region when temperatures exceeded 20.0°C, a temperature indicative of the leading edge of the LC in SWA waters. Interannual fluctuations in the timing of movements were detected. When the LC was narrow and restricted to the shelf edge in 2004/2005, the distribution of SBT in shelf waters did not change before or after LC intrusion. In contrast, long distance eastward movements frequently occurred when the LC intrusion was spread wide over the continental shelf in 2005/2006 and 2006/2007. This suggests that, off SWA, juvenile SBT move quickly out of local foraging habitats defined by cool sub‐tropical temperate waters ahead of the tropical LC intrusion, despite these waters not being physiologically limiting. These results suggest that the behavioural response of SBT may be related to changes in prey availability as a result of changes in oceanographic conditions. 相似文献