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排序方式: 共有186条查询结果,搜索用时 17 毫秒
81.
Hideki ENDO Truong Son NGUYEN Dinh Duy NGUYEN Motoki SASAKI Junpei KIMURA Tatsuo OSHIDA Masaya YAGO Ngoc Tu LY Thi Tham NGUYEN Masaharu MOTOKAWA 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2021,83(10):1534
Morphological variation of the skull was examined in the northern treeshrew (Tupaia belangeri) from various localities across Southeast Asia. Through a multivariate analysis, the treeshrews from South Vietnam exhibited distinct morphological characteristics compared to other populations from Thailand and Laos, and Malaysia. The plots of the specimens of North Vietnam are not randomly mixed with Thailand plots segregation in the scatteregrams of canonical discriminant analysis. Since the skulls of the population from North Vietnam were morphologically similar to those form central Laos and northern and northeastern Thailand, the zoogeographical barrier effect of Mekong River was not clearly confirmed. The population of the Kanchanaburi in western Thailand is clearly smaller in size compared to the other populations. The southern border of the distribution of this species is determined by the Isthmus of Kra or Kangar-Pattani Line. In the northern treeshrew, which is distributed from southern China to Bangladesh and southern Thailand, we have detected osteometrical geographical variation driven by geography. These results indicate that the skull morphology in the Tupaia glis-belangeri complex distinctively differs in South Vietnam, western Thailand, and southern Thailand. The zoogeographical barrier and factor separating these districts are expected to clarify in the future. 相似文献
82.
Kenji TSUKANO Yasunobu NISHI Naoki SASAKI Kazuyuki SUZUKI 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2021,83(10):1521
Very few epidemiologic studies have verified the utility of the right paramedian abomasopexy (RPA) technique in cows with right abomasal disorders. This study aimed to investigate the outcomes and risk factors for non-survival in the herd within 30 days of surgery in cows with right abomasal disorders who underwent the RPA technique. Forty-seven Holstein cows with right abomasal disorders (25 with right abomasal displacement [RDA] and 22 with right abomasal volvulus [RAV]) were included. Twenty-two cows with RDA (22/25, 88.0%) and 10 cows with RAV (10/22, 45.5%) survived at 30 days post-surgery. Multivariate logistic regression analysis indicated that hyponatremia, hypokalemia, and the presence of abomasal volvulus were the major risk factors associated with non-survival. 相似文献
83.
Kaoru HATATE Kazuhiko SHINYA Asako MATSUO-SATO Shuichi SASAKI Bhuminand DEVKOTA Masahiro TAKAHASHI Toichi HIRATA Norio YAMAGISHI 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2016,78(2):337-340
The fluctuations in the plasma levels of several bone markers were investigated in newborn calves. Experiment
1 monitored the postnatal changes in the plasma levels of tartrate-resistant acid phosphatase isoform 5b
(TRAP5b), total alkaline phosphatase (t-ALP) and bone-specific alkaline phosphatase (BAP) in four calves.
These markers increased significantly from 9−20 hr after the first colostrum-suckling compared with the values
immediately after birth. Experiment 2 evaluated changes in the plasma TRAP5b, t-ALP, BAP and type I collagen
cross-linked N-telopeptide (NTx) levels within 2 days post-birth in five calves with successful passive
immunization via colostrum (non-deficient group) and five others with poor colostrum intake (deficient group).
The non-deficient group had significantly higher plasma levels of the four parameters around 12 hr of life
compared with the deficient group. The results suggest that the increase in plasma bone markers in calves in
the first day of life is related to the colostrum intake. 相似文献
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87.
KENSUKE NAKAMURA NOBORU SASAKI MUNEYOSHI YOSHIKAWA HIROSHI OHTA SHIANG-JYI HWANG TAKAHIRO MIMURA MASAHIRO YAMASAKI MITSUYOSHI TAKIGUCHI 《Veterinary radiology & ultrasound》2009,50(1):104-108
Contrast-enhanced ultrasonography has an important role in the detection of tumors in humans. The second-generation contrast agent Sonazoid has the ability of real-time contrast imaging along with parenchymal imaging. The purposes of this study were to determine the effect and duration of Sonazoid on the changes in gray-scale enhancement of canine spleen and to establish an appropriate protocol for contrast-enhanced ultrasonography of canine spleen. Six healthy beagles were injected with an intravenous bolus of Sonazoid. In the spleen parenchyma, the enhancement was maintained up to 30 min after injection. Moreover, for 5–22 s after injection, gray-scale enhancement of splenic arteries afforded arterial imaging. Perfusion of the kidney may be investigated from 3.6 s to 3.5 min after injection of Sonazoid. These results suggest that Sonazoid is applicable to canine spleen parenchymal imaging and that the optimal time for the parenchymal imaging is 7–30 min after injection. The findings of this quantitative study should prove useful in the evaluation of diffuse or focal splenic and renal diseases in dogs. 相似文献
88.
Naoki SASAKI Nao TSUZUKI Michiaki YAMADA Takuto MINAMI Haruo YAMADA 《Journal of Equine Science》2009,20(1):7-10
This study aimed to establish a standard dose and sample collection time for
13C phenylalanine and 13C-Dipeptide breath test in horses. To
evaluate dose-dependent effects, healthy horses received 2.5 mg/kg, 5 mg/kg, and 10 mg/kg
13C phenylalanine dissolved in 1 ml/kg distilled water and 1.25 mg/kg, 2.5
mg/kg, and 5 mg/kg 13C dipeptide dissolved in 2 ml/ kg distilled water. Tmax
was observed during the sample collection time. For 13C phenylalanine, the
standard deviation of Cmax at 5 mg/kg was lower than that of 10 mg/kg. For 13C
dipeptide, the standard deviation of Tmax was the lowest at 5 mg/kg. This study revealed
that an optimal dose for breath tests with 13C phenylalanine and 13C
dipeptide may be 5 mg/kg in horses. 相似文献
89.
Kensuke HIROSE Mariko NAKAMURA Tatsuya TAKIZAWA Kazuo FUKAWA Tetsuya ITO Masayuki UEDA Takashi SASAKI Kazuaki TANAKA 《Animal Science Journal》2009,80(6):624-630
An insertion/deletion variant of a thymine base (T5 and T6) in exon 2 of porcine beta 3‐adrenergic receptor (ADRB3) gene has been described. In the current study, we made an association study between the ADRB3 polymorphisms and production traits in 735 Duroc pigs. The allele frequencies for the T5 and T6 alleles in our study population were 0.433 and 0.567, respectively. Any associations between ADRB3 genotype and average daily weight gain during test period, or backfat thickness and intramuscular fat content were not detected in either sex. However the size of the loin eye muscle area (EMA) was significantly associated with ADRB3 genotypes in gilts. T6‐homozygous gilts had a higher mean of EMA (40.6 ± 0.6 cm2) than T5‐homozygous (38.1 ± 0.4 cm2, P = 0.002) and heterozygous (38.8 ± 0.3 cm2, P = 0.034) gilts. This association was not detected in males. In addition, a multiple traits animal model best linear unbiased predictor (BLUP) analysis revealed that the T6‐homozygous genotype had positive effects on breeding value of EMA. Accordingly, we suggest that ADRB3 polymorphism has the potential to be an important genetic marker for prediction of EMA in Duroc pigs. 相似文献
90.