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61.
Tagawa M Takeuchi T Fujisawa T Konno Y Yamamoto S Matsumoto K Yokoyama N Inokuma H 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2012,74(1):99-102
A 2-year-old East Friesian sheep imported from Australia exhibited severe anemia after contagious pustular dermatitis in Hokkaido, Japan. Hemoplasma infection was confirmed in blood smears. Both Mycoplasma ovis and 'Candidatus Mycoplasma haemovis' were detected by PCR and sequence analyses. In the epidemiological analysis, dual pathogens were detected in 6 of 12 (50.0%) sheep imported from Australia with the infected ewe at the same time, 1 of 5 (20.0%) sheep introduced from a domestic farm in Hokkaido, and in 1 of 16 (6.3%) sheep from an epidemiologically unrelated ranch. It is the first clinical case of sheep to confirm coinfection of these pathogens in Japan. 相似文献
62.
Expression of a gene encoding Trypanosoma congolense putative Abc1 family protein is developmentally regulated 总被引:1,自引:0,他引:1
63.
Kimotsuki T Nagaoka T Yasuda M Tamahara S Matsuki N Ono K 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2005,67(10):961-967
Age-associated changes of magnetic resonance imaging (MRI) on the brain were evaluated in 19 beagle dogs aged from 8-month- to 16-year-old. A significant correlation of the volume of lateral ventricle space was observed in the dogs with age advanced, however, no correlation was found between hippocampus size and the aging. The hypo-intensity areas on T2-weighted MRI were detected in globus pallidus and substantia nigra with a significant correlation of both intensity ratios to lateral ventricle with age advanced. These areas were coincided with the accumulation of iron in the slice of the brain with Perls' staining. In addition, hyper-intensity area, suggesting perivascular demyelination with fluid-filled space, was also observed in white matter surrounding the lateral ventricle on T2-weighted MRI. These results suggested that age-associated changes of T2-weighted MRI were developed in the dog brain, especially in globus pallidus, substantia nigra, and white matter surrounding lateral ventricle, like as those reported in the human brain. 相似文献
64.
Matsuki N Inaba M Ono K 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2002,64(4):341-347
Loss of adenosine-5'-triphosphate (ATP) and accumulation of inosine-5'-monophosphate (IMP) are the major purine metabolic changes in the skeletal muscle during hypoxia. This study addressed whether chemical metabolic inhibition reflects those changes in cultured skeletal myotube. For this aim, mouse-derived C2C12 myotubes were cultured in Hank's balanced saline solution containing 2 mM sodium cyanide (CN) and/or 1 mM iodoacetic acid (IAA) up to 180 min. Inhibition of oxidative phosphorylation by CN induced a minimal change in the intracellular adenine nucleotide levels during 180 min. Blockage of glycolysis with IAA caused an over 90% decrease in adenine nucleotides both in the cytoplasmic and intramitochondrial spaces, accompanied with allantoin release. Since 1 mM allopurinol entirely inhibited the allantoin generation, xanthine dehydrogenase/oxidase was found to play a key role in the purine catabolism in IAA-treated C2C12 myotubes. By the combined treatment with CN+IAA, ATP exhaustion and IMP accumulation was achieved with significant cell injury. These changes were comparable with those in skeletal muscles during hypoxia, indicating that our model with CN+IAA is well applicable to the investigation of hypoxia-induced myopathy. 相似文献
65.
Manuel Albert V. Tu Phan Thi Cam Tsutsui Naoaki Yoshimatsu Takao 《Fisheries Science》2020,86(1):27-33
Fisheries Science - The embryonic developmental response of two abalone species (disk abalone Haliotis discus discus, giant abalone Haliotis gigantea) to a drop in salinity with different exposure... 相似文献
66.
Phan Thi Cam Tu Manuel Albert Valdish Tsutsui Naoaki Yoshimatsu Takao 《Fisheries Science》2020,86(1):119-125
Fisheries Science - Heavy rainfall can reduce salinity and increase turbidity in coastal waters, creating stressful conditions for the organisms found there, especially for the early stages of... 相似文献
67.
With data sampled from 2003 to 2006, this study presents the effects of temperature, food availability (C), and body size on the somatic growth rate [^(g)] \hat{g} (mm day−1) and on the size-specific growth rates [^(G)] \hat{G} (day−1) of larval Japanese anchovy Engraulis japonicus caught in Hiuchi-nada, Seto Inland Sea, Japan, a semi-enclosed narrow sea. C was calculated using an individual-based model, which is an encounter model between copepods and anchovy where the anchovy
resulted in a successful capture of the copepod. [^(g)] \hat{g} decreased with increasing anchovy length, but increased with increasing C. No significant relationship was found between [^(g)] \hat{g} and temperature. [^(G)] \hat{G} decreased with increasing temperature, but anchovy weight, on the other hand, increased with increasing C. In the literature, the mechanism of growth determination for larvae of pelagic fish species is considered to be primarily
determined by sea temperature and secondarily by food availability. However, [^(g)] \hat{g} and [^(G)] \hat{G} were found to be dependent on C rather than temperature. [^(G)] \hat{G} was dependent on anchovy weight rather than C and temperature. For forecasting the number of days required for development from an arbitrary pre-recruitment size to the
recruitment size, we address not only temperature but also food availability and the size effect when considering the mechanism
of growth determination for larvae. 相似文献
68.
69.
Yasuhiro AOKI Mikio KAMO Hidenori KAWAMOTO † Jianguo ZHANG Akihisa YAMADA 《Animal Science Journal》2006,77(1):103-109
We examined the walking parameters of milking cows in relation to hoof trimming. The hooves of eight Holstein cows were trimmed. Two days before and after the hoof trimming, walking behavior, limb angles, back posture and vertical movement of the back while walking were measured. Walking rate (1.27 vs 0.87 m/s; P = 0.003), step length (1.46 vs 1.33 m; P = 0.009) and stepping rate (0.78 vs 0.65 steps/s; P = 0.046) were found to increase significantly after hoof trimming. Limb angles at the start and end of the support phase changed significantly after hoof trimming, thus indicating an improvement in the ‘on tiptoe’ appearance. The parameters relating to backline indicated that the marked arched shape of the back diminished after hoof trimming. Before hoof trimming, the positions of the withers varied widely and irregularly while walking; however, it changed after hoof trimming as the sinusoid curve and the range of vertical movement of withers decreased significantly. Overall, it has been quantitatively indicated that walking characteristics are improved after hoof trimming. The parameters used in the present study are expected to be useful for monitoring the walking characteristics of cows. 相似文献
70.
TOSHIE ISERI KAZUTAKA YAMADA KOUSAKU CHIJIWA RYOHEI NISHIMURA SATORU MATSUNAGA REINA FUJIWARA NOBUO SASAKI 《Veterinary radiology & ultrasound》2007,48(4):328-331
To establish optimal imaging conditions for enhanced computed tomography (CT) for canine pancreatic tumors, 10 healthy beagles were subjected to dynamic CT. This technique was then applied to a dog with suspected insulinoma. The changes in mean peak enhancement and the delay time of the aorta and pancreas were determined. In normal beagles, maximal arterial and pancreatic CT enhancement was observed at 15 +/- 2 s (795 +/- 52 Housfield unit [HU]) and 28 +/- 9 s (118 +/- 16HU) after contrast medium injection, respectively. Multiphase enhanced CT was performed in a pug with suspected insulinoma using the CT protocol defined for the normal beagles with some parameters modified; the images were acquired at the arterial (14 s after contrast medium injection), pancreatic (after 28 s), and equilibrium (after 90 s) phases; scanning was followed by exploratory laparotomy. CT images were characterized by an enhanced mass in the left pancreatic lobe at the arterial phase, during which the difference between the CT values of the mass and normal pancreas was the highest. Histopathologic diagnosis of the pancreatic mass was insulinoma. Thus, it appears that enhanced CT imaging can be used to delineate the pancreas from a pancreatic mass, and it may be helpful in deciding the need for surgery. 相似文献