Genesis and characteristics of brown forest soils derived from Serpentine in Kyushu,Japan     

Ichiro Kanno  Yutaka Onikura  Shizuoki Arimura  Shoichi Tokudome 《Soil Science and Plant Nutrition》2013,59(3):6-15

One of the main objects of the present study is to determine what genetic soil types have been formed from ultra-basic rocks such as serpentine under humid, subtropical conditions. Red-Yellow soils, which are important zonal soils in Kyushu, have not been formed from serpentine, but Brown Forest soils have been formed, as will be described in the part 2 of this paper. This fact for the most part has been governed by the mineralogical and chemical peculiarities of serpentine. Therefore the part 1 of this paper deals with the mineralogical and chemical characteristics of serpentine as a parent rock from which Brown Forest soils have developed.  相似文献   

A next-generation-sequencing approach to diagnose viral diseases of greenhouse ranunculus     

Hayahi  Saki  Ota  Emi  Kurogi  Shuichi  Matsushita  Yosuke  Kanno  Yoshiaki  Takeshita  Minoru 《Journal of General Plant Pathology》2022,88(2):134-137

Journal of General Plant Pathology - Viruses that infect Ranunculus asiaticus L., a globally important greenhouse ornamental, have consistently caused serious damage in Japan. We coupled...  相似文献   

QTL analysis of panicle morphology response to irrigation regime in aerobic rice culture     

Yoichiro Kato  Keisuke Nemoto  Junko Yamagishi   《Field Crops Research》2009,114(2):295-303

In water-efficient rice production, grain yield is often constrained by panicle size. The objective of this study was to genetically dissect the response of panicle morphology to irrigation regimes in aerobic rice culture. We grew ‘Akihikari’ (a lowland japonica cultivar) × ‘IRAT109’ (an upland japonica cultivar) backcross inbred lines in aerobic soils with full or limited irrigation for 2 years, and examined 4 panicle traits—number of florets per panicle (FPP), number of primary branches per panicle (BPP), number of florets per primary branch (FPB), and frequency of pre-flowering floret abortion (%FA)—and grain yield. QTLs for BPP were detected in both the irrigation regimes but QTLs for FPB and %FA were detected mostly only in either of the irrigation regimes. The QTL for FPP on chromosome 2 (RM3421–RM213) coincided with that for yield under full irrigation, showing that this QTL is related to sink capacity and yield potential in aerobic rice culture. On the other hand, the QTL for FPB on chromosome 1 (RM3148–RM243) coincided with that for yield under limited irrigation, when water deficit was moderate. The QTL for root axis length at vegetative stage, previously identified in the same mapping population, was located near this region. This study unravelled the complicated genetic control on panicle morphology in aerobic rice culture, and suggested the positive roles of the dehydration avoidance mechanism by vigorous root growth on panicle size and yield under dry soil conditions.  相似文献   

Geographical distribution of Vip3Aa20 resistance allele frequencies in Spodoptera frugiperda (Lepidoptera: Noctuidae) populations in Brazil     

Fernando S A Amaral  Aline S Guidolin  Eloisa Salmeron  Rubens H Kanno  Fernando E O Padovez  Júlio C Fatoretto  Celso Omoto 《Pest management science》2020,76(1):169-178

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Exploration of factors determining milk production by Holstein cows raised on a dairy farm in a temperate climate area     

Kino  Erina  Kawakami  Rui  Minamino  Tomoya  Mikurino  Yoko  Horii  Yoichiro  Honkawa  Kazuyuki  Sasaki  Yosuke 《Tropical animal health and production》2019,51(3):529-536

In this study, we examined factors that affected milk production by cows raised in a temperate climate area. We conducted this study on a large dairy farm containing approximately 2000 Holstein cows, located in a temperate climate area. We collected 7803 calving records for 4069 cows from 2012 to 2016. We then assessed the effect of hot weather on milk yield by examining three climate factors: season, maximum temperature (MAX), and the temperature and humidity index (THI). We found that increases in heat stress caused linear decreases in milk yield (P?<?0.05). Additionally, the effects of the three climate factors on milk yield varied depending on cow parity and days open (P?<?0.05). Thus, management procedures should consider cow parity and lactating stage to minimize the negative effects of heat stress on milk production. We also found that the lowest Akaike information criterion value was obtained in our model when using THI for 305-day milk yield. This suggests that THI is a more accurate variable for evaluating heat stress than MAX or season.

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Diagnostic accuracy of plasma atrial natriuretic peptide concentrations in cats with and without cardiomyopathies     

Y. Heishima  Y. Hori  K. Nakamura  Y. Yamashita  N. Isayama  N. Kanno  M. Katagi  H. Onodera  S. Yamano  Y. Aramaki 《Journal of Veterinary Cardiology》2018,20(4):234-243

Objectives

Plasma atrial natriuretic peptide (ANP) levels have been reported to be elevated in cats with cardiomyopathy. We investigated the diagnostic accuracy of plasma ANP concentration as an indicator of the severity of cardiomyopathies.

Animals

This study included 78 control cats and 83 cats with various types of cardiomyopathy.

Methods

This was a prospective multicentre study. Control cats were determined to have a normal heart, and diseased cats were diagnosed by echocardiography. Diseased cats were divided into asymptomatic cats without left atrial dilation (LAD), asymptomatic cats with LAD, and cats with heart failure. Plasma C-terminal ANP concentrations were measured using chemiluminescence.

Results

The median plasma ANP concentration in controls was 43.3 (interquartile range, 33.0–56.3) pg/mL. Plasma ANP values were significantly higher in the cardiomyopathic cats with LAD and heart failure, but the values in cats without LAD were comparable to those in control cats. To distinguish cats with cardiomyopathy from controls, a plasma ANP concentration >77.5 pg/mL afforded sensitivity of 66.3% and specificity of 84.6%. Use of plasma ANP concentration >110.9 pg/mL to identify cats with LAD had a sensitivity of 73.6% and specificity of 93.5%. The areas under the receiver-operating characteristic curve were 0.80 and 0.86.

Conclusions

Plasma ANP concentrations were higher in cats with more advanced cardiomyopathy. Although assaying the ANP concentration alone may not help to diagnose cardiac disease, measuring provides additional information that is useful for assessing the severity of cardiomyopathies.  相似文献   

Validation of auto-counting method by NIH Image using otoliths of white-spotted char Salvelinus leucomaenis     

Yoshinobu Takashima  Takenori Takada  Takashi Matsuishi and  Yasuji Kanno 《Fisheries Science》2000,66(3):515-520

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In vitro evaluation of the relationship between the semitendinosus muscle and cranial cruciate ligament in canine cadavers     

Kanno N  Amimoto H  Hara Y  Harada Y  Nezu Y  Yogo T  Tagawa M 《American journal of veterinary research》2012,73(5):672-680

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The relationship between the anticoccidial effects of clindamycin and the development of immunity in the Eimeria pragensis/mouse model of large intestinal coccidiosis     

Yunus M  Horii Y  Makimura S  Smith AL 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2005,67(2):165-170

The therapeutic effect of clindamycin on Eimeria pragensis (E. pragensis) infection in C57BL/6 mice was demonstrated by suppression of oocyst production and the appearance of degenerated endogenous stages of parasite in the intestine. Short-term clindamycin treatment, from 1 to 4 days or 4 to 8 days post infection (pi) at a dose of 800 mg/kg/day was effective to reduce clinical symptoms, oocyst production and schizogonic development. Interestingly, the short-term treatment schedules allowed the development of a measurable degree of protective immunity to challenge infection in the treated mice. In contrast, clindamycin treatment for the full 12 days period, which almost completely inhibited clinical symptoms and oocyst output, prevented the full development of protective immunity in the treated mice. All these data indicate that clindamycin is efficacious as an anti-eimerian agent and that both early and late endogenous developmental stages of E. pragensis exert a deep influence on the development of effective immunity to challenge infection.  相似文献   

Lymphocyte subsets and specific IgG antibody levels in clindamycin-treated and untreated dogs experimentally infected with Babesia gibsoni     

Wulansari R  Wijaya A  Ano H  Horii Y  Makimura S 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2003,65(5):579-584

This study was carried out to clarify the role of lymphocyte subpopulations and Babesia-specific antibody on the treatment of clindamycin in dogs infected with B. gibsoni. Ten beagle dogs were divided into two groups: an untreated group (5 dogs) and a clindamycin-treated group (5 dogs), which was administered clindamycin at 25 mg/ kg body weight, per os, q 12 hr from 7 days to 21 days post-infection (PI). On the acute stage of infection, clindamycin treatment resolved anaemia and other clinical findings. There were no significant differences between treated and untreated dogs either in parasitemia levels or Babesial IgG antibody levels. However, morphological changes that indicated degeneration in the majority of parasites were observed. The numbers of CD4(+) showed a significant increase in treated dogs, especially after treatment. On the chronic stage, CD4(+) cells maintained high level both of the treated and untreated dogs. Although parasitemia maintained low level, their relapses were occurred on the 49th day PI in treated dogs and on the 42nd and 63rd PI in untreated dogs. A rapid humoral antibody response was observed in treated dogs, however, lower humoral antibody responses in untreated dogs after relapses. The antibody levels of treated dogs were significantly higher than those of untreated dogs. These results suggested that clindamycin might not eliminate rapidly parasites from peripheral blood, but damage parasites, which might stimulate efficiently humoral and cellular immunity against Babesia infection, and result in an improvement of clinical conditions.  相似文献