The Silicon Concentration in Cat Urine and Its Relationship with Other Elements     

Fumihito TAKAHASHI  Mariko MOCHIZUKI  Takuya YOGO  Katsumi ISHIOKA  Norio YUMOTO  Toshinori SAKO  Fukiko UEDA  Masahiro TAGAWA  Hiroyuki TAZAKI 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2014,76(4):569-572

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Is experience on a farm an effective approach to understanding animal products and the management of dairy farming?     

Mariko Mochizuki  Masahiro Osada  Katsumi Ishioka  Takako Matsubara  Yutaka Momota  Norio Yumoto  Toshinori Sako  Shinji Kamiya  Itaru Yoshimura 《Animal Science Journal》2014,85(3):323-329

The understanding of animal products and dairy farming is important for the promotion of dairy farming. Thus, to examine the effects of farm experience on the understanding of animal products and the management of dairy farming, the interaction between students and dairy cows was investigated in groups of first‐year veterinary nursing students in 2011 and 2012 (n = 201). These students included 181 women and 20 men. Nine items about dairy cows were presented in a questionnaire. The survey was performed before and after praxis on the educational farm attached to the authors' university. After praxis on the farm, increases occurred in the number of positive responses to the items involving the price of milk, dairy farming and the taste of milk. For these items, a significant difference (P < 0.05) was found between the scores obtained before and after training. The results of the study suggested that farm experience is useful for improving the understanding of animal products and dairy farming.  相似文献   

Characterization of lysozymes from three shellfish     

Kouji Miyauchi  Nobuyasu Tsubuku  Masahiro Matsumiya  Atsushi Mochizuki 《Fisheries Science》2007,73(6):1404-1406

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Evaluation of genetic variation among wild rice populations in Cambodia     

Chhourn Orn  Rieko Shishido  Masahiro Akimoto  Ryo Ishikawa  Than Myint Htun  Ken-Ichi Nonomura  Yohei Koide  Men Sarom  Seng Vang  Sakhan Sophany  Ouk Makara  Takashige Ishii 《Breeding Science》2015,65(5):430-437

A total of 448 samples in five natural populations of wild rice (Oryza rufipogon) were collected in Cambodia. They were examined using 12 SSR and two chloroplast markers to evaluate the degree of variation among populations and the genetic structure within populations. In the two annual populations, the number of plants with homozygous alleles at all 12 SSR loci were high (66.3% and 79.5%), suggesting that these plants propagate mainly through self-pollination. In the three perennial populations, no individuals had all homozygous genotypes, but redundant genotypes resulted from clonal propagation were observed. Percentages of the redundant genotypes were highly varied (3.6%, 29.2% and 86.0%). This may be due to the different stable levels of environmental conditions. As for chloroplast genome, most of the wild plants showed the same chloroplast types as most Indica-type cultivars have. However, plants with different chloroplast types were maintained, even in the same population. In tropical Asian countries, many wild rice populations were observed under similar ecological conditions examined in this study. Therefore, the present results concerning population structure will be important to further elucidate genetic features of wild rice, and will also give strong clues to utilize and conserve wild natural genetic resources.  相似文献   

Characterization of six varieties of Cucumis melo L. based on morphological and physiological characters, including shelf-life of fruit     

Li Liu  Fumika Kakihara  Masahiro Kato 《Euphytica》2004,135(3):305-313

Seventy-two accessions covering six varieties of Cucumis melo were characterized by using 35 morphological characters with emphasis on shelf-life, and the relationships between shelf-life and related characters was investigated. Principal component analysis (PCA) revealed that development period of plant and fruit, size of seed and fruit, shelf-life, stem hair, flesh juiciness, netting, abscission of peduncle, rapid yellowing of epidermis at maturity, Brix value, and color of flesh and epidermis etc. were the principal characters to discriminate melon accessions examined in the present study. According to the scatter diagram, vars. acidulusand makuwa, both of which belong to the Oriental melon, are closely related because of their short growth duration, small seed, thin pericarp and poor shelf-life, while American cantaloupe (var.reticulatus) and European cantaloupe (var. cantalupensis) are rather closely related due to their climacteric fruit with orange flesh, slipped peduncle and rapid yellowing of epidermis at maturity, which is closely related with their shelf-life. PCA also indicated that var. saccharinus was closer to var. inodorus than to the other varieties, due to their requirement of long period for development, large size of seed and fruit, and half- or non-slipped peduncle. Shelf-life of melon fruit was significantly correlated with the following characters: quality of flesh, size of seed and fruit, abscission of peduncle, development periods of plant and fruit, rapid yellowing of epidermis at maturity, Brix value and color of flesh and epidermis. Accessions with good shelf-life were mostly found in vars. saccharinus and inodorus. This revised version was published online in July 2006 with corrections to the Cover Date.  相似文献   

Anaemia, iron deficiency and vitamin A status among school-aged children in rural Kazakhstan     

Hashizume M  Chiba M  Shinohara A  Iwabuchi S  Sasaki S  Shimoda T  Kunii O  Caypil W  Dauletbaev D  Alnazarova A 《Public health nutrition》2005,8(6):564-571

OBJECTIVES: To investigate the prevalence of anaemia and iron deficiency and vitamin A status among school-aged children in rural Kazakhstan and identify factors associated with anaemia in this population. DESIGN: A cross-sectional design. SETTING: School-aged children in rural Kazakhstan. SUBJECTS: Socio-economic and anthropometric information was collected from 159 school-aged children living in the Kzyl-Orda region of Kazakhstan. Blood samples were collected and the concentrations of haemoglobin (Hb), serum iron, serum ferritin (SF), erythrocyte protoporphyrin (EP), serum retinol and beta-carotene, total iron binding capacity (TIBC), transferrin saturation (TS) and other haematological indices were measured. RESULTS: Among the 159 children, the prevalence of anaemia and iron deficiency defined by the multiple criteria model (SF, TS and EP) was 27% and 13%, respectively. Nine per cent had iron-deficiency anaemia and 21% had serum retinol value < 1.05 micromol l(-1). Mean SF and serum iron concentrations and TS were significantly lower in anaemic children than in their non-anaemic peers, while TIBC and EP were significantly higher in children with anaemia. Hb was significantly correlated with serum iron and retinol concentrations. Serum retinol and SF concentrations and mean corpuscular volume were significantly correlated with Hb by multiple regression analysis. CONCLUSIONS: Anaemia among school-aged children in rural Kazakhstan appears to be related to iron indices and vitamin A status.  相似文献   

Collection,mapping, and annotation of over 28,000 cDNA clones from japonica rice   总被引：2，自引：0，他引：2  

Rice Full-Length cDNA Consortium;National Institute of Agrobiological Sciences Rice Full-Length cDNA Project Team  Kikuchi S  Satoh K  Nagata T  Kawagashira N  Doi K  Kishimoto N  Yazaki J  Ishikawa M  Yamada H  Ooka H  Hotta I  Kojima K  Namiki T  Ohneda E  Yahagi W  Suzuki K  Li CJ  Ohtsuki K  Shishiki T;Foundation of Advancement of International Science Genome Sequencing & Analysis Group  Otomo Y  Murakami K  Iida Y  Sugano S  Fujimura T  Suzuki Y  Tsunoda Y  Kurosaki T  Kodama T  Masuda H  Kobayashi M  Xie Q  Lu M 《Science (New York, N.Y.)》2003,301(5631):376-379

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High-density electron anions in a nanoporous single crystal: [Ca24Al28O64]4+(4e-)   总被引：1，自引：0，他引：1  

Matsuishi S  Toda Y  Miyakawa M  Hayashi K  Kamiya T  Hirano M  Tanaka I  Hosono H 《Science (New York, N.Y.)》2003,301(5633):626-629

We removed approximately 100% of clathrated oxygen ions from the crystallographic cages in a single crystal of 12CaO.7Al2O3, leading to the formation of high-density (approximately 2 x 10(21) cm-3) electrons highly localized in the cages. The resulting electron forms a structure that we interpret as an F+ center and migrates throughout the crystal by hopping to a neighboring cage with conductivity approximately 100 siemens per centimeter, demonstrating that the encaged electron behaves as an anion. The electron anions couple antiferromagnetically with each other, forming a diamagnetic pair or singlet bipolaron. The resulting [Ca24Al28O64]4+(4e-) may be regarded as a thermally and chemically stable single crystalline "electride."  相似文献   

添加己酸和盐酸对玉米秸秆青贮饲料质量的影响   总被引：7，自引：0，他引：7  

席兴军  韩鲁佳  原慎一郎  甘利雅弘 《中国农业大学学报》2002,7(6):54-60

通过测定盐酸、己酸处理的玉米秸秆青贮饲料的pH值、含水率、有机酸含量及组成、干物质消失率、NDF瘤胃降解率、干物质回收率和青贮饲料化学成分，研究了盐酸、己酸的处理对玉米秸秆青贮饲料质量的影响。试验结果表明：在玉米秸秆青贮饲料中添加盐酸，降低了青贮饲料中乳酸占总酸的比例和干物质回收率，并使青贮饲料的细胞壁物质含量显著增加，明显降低了玉米秸秆青贮饲料的质量；己酸的添加对青贮饲料质量无显著影响(P＞0．05)；盐酸和己酸的共同处理除了明显改善青贮饲料的色泽、气味和质地外，还可明显降低青贮饲料中OB，ADF和ADL的含量(P＞0．05)，显著提高了青贮饲料的营养价值。  相似文献   

DNA methylation analysis on satellite I region in blastocysts obtained from somatic cell cloned cattle     

Ken‐ichi YAMANAKA  Masahiro KANEDA  Yasushi INABA  Koji SAITO  Kaiyu KUBOTA  Miki SAKATANI  Satoshi SUGIMURA  Kei IMAI  Shinya WATANABE  Masashi TAKAHASHI 《Animal Science Journal》2011,82(4):523-530

Many observations have been made on cloned embryos and on adult clones by somatic cell nuclear transfer (SCNT), but it is still unclear whether the progeny of cloned animals is presenting normal epigenetic status. Here, in order to accumulate the information for evaluating the normality of cloned cattle, we analyzed the DNA methylation status on satellite I region in blastocysts obtained from cloned cattle. Embryos were produced by artificial insemination (AI) to non‐cloned or cloned dams using semen from non‐cloned or cloned sires. After 7 days of AI, embryos at blastocyst stage were collected by uterine flushing. The DNA methylation levels in embryos obtained by using semen and/or oocytes from cloned cattle were similar to those in in vivo embryos from non‐cloned cattle. In contrast, the DNA methylation levels in SCNT embryos were significantly higher (P < 0.01) than those in in vivo embryos from non‐cloned and cloned cattle, approximately similar to those in somatic cells used as donor cells. Thus, this study provides useful information that epigenetic status may be normal in the progeny of cloned cattle, suggesting the normality of germline cells in cloned cattle.  相似文献