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排序方式: 共有139条查询结果,搜索用时 15 毫秒
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83.
Anthony P. Pease DVM MS Peter V. Scrivani DVM Hollis N. Erb DVM PhD Vanessa L. Cook MA Vet MB MS MRCVS 《Veterinary radiology & ultrasound》2004,45(3):220-224
Large-colon torsion is a common cause of colic in horses and has a worse prognosis and higher cost than other causes of surgical colic of the large colon. During large-colon torsion, the colon wall becomes thick due to vascular occlusion. Therefore, we hypothesized that detecting increased colon wall thickness during ultrasonography would be an accurate preoperative test for large-colon torsion. The sample population consisted of 42 horses that were admitted for surgical treatment of colic localized to the large colon. The diagnosis was confirmed at surgery or necropsy examination. Twelve (29%) of these horses were diagnosed with large-colon torsion. Duplicate ultrasonographic measurements of colon wall thickness were made at six abdominal locations and an average measurement was calculated. For four of these six sites, a significant difference (P < 0.005) was detected between horses with and without large-colon torsion. All four tests were moderately sensitive and highly specific for diagnosing large-colon torsion using five decision criteria. Using a ventral abdominal window, a colon wall thickness > or = 9 mm accurately predicted large-colon torsion in eight of the 12 horses (sensitivity, 67%; confidence interval [CI], 36-98%) and correctly predicted that large-colon torsion was absent in 28/28 horses (specificity 100%; CI, 98-100%). Intraobserver repeatability was assessed by evaluating the difference between the first and second measurements obtained, which was < or = 2 mm. Therefore, detecting increased large-colon wall thickness during ultrasonography is a reproducible and accurate preoperative test for large-colon torsion in horses with surgical colic localized to the large colon. 相似文献
84.
A novel xanthene from Indigofera longeracemosa stem 总被引:1,自引:0,他引:1
A novel xanthene, 3-isopropyl-9a-methyl-1,2,4a,9a-tetrahydroxanthene (1), was isolated from the stem of Indigofera longeracemosa. 相似文献
85.
Antibacterial activity of luteoforol from Bridelia crenulata 总被引:1,自引:0,他引:1
Ramesh N Viswanathan MB Saraswathy A Brindha P Balakrishna K Lakshmanaperumalsamy P Patra A 《Fitoterapia》2001,72(4):409-411
The methanol extract of Bridelia crenulata stem bark (50-1.5625 mg/ml) and its isolated luteoforol (2-0.25 mg/ml) showed concentration-dependent inhibiting activity against all 10 tested bacteria. 相似文献
86.
MB Allworth B Goonan JE Nelson G Kelly SR McGrath RG Woodgate 《Australian veterinary journal》2023,101(8):293-295
Anthelmintic resistance (AR) is a well-recognized challenge in farmed ruminants. The use of anthelmintics in combination is one of the strategies recommended to slow the rate of AR development. Two studies were undertaken in 2017 and 2019 to assess the efficacy of single-dose macrocyclic lactone (ML) anthelmintic and ML combination drenches. In total, 11 Faecal Egg Count Reduction Trials (FECRTs) were set up in 10 different beef herds, with results available from 10 of those FECRTs (9 herds). AR to a single ML anthelmintic was detected in all 9 herds, with resistance to Cooperia and Haemonchus spp on 9 farms, and resistance to Ostertagia and Trichostrongylus spp on 2 farms. In contrast, for the ML combination anthelmintics, all FECRTs resulted in efficacies of 99%–100%. The results suggest that cattle producers should strongly consider using combination drenches in their herds in preference to single actives. 相似文献
87.
Relationships among Puberty,Muscle and Fat,and Liveweight Gain during Mating in Young Female Sheep 下载免费PDF全文
CA Rosales Nieto MB Ferguson H Thompson JR Briegel CA Macleay GB Martin AN Thompson 《Reproduction in domestic animals》2015,50(4):637-642
Greater depths of muscle are associated with better reproductive performance in ewe lambs, but, in adult ewes, reproductive performance also seems to vary with liveweight gain during the mating period. Therefore, in a large field study with Merino ewe lambs, we tested whether the relationships among eye muscle depth (EMD), fat depth (FAT) and reproductive performance depend on liveweight gain during the mating period. We selected lambs with a wide range in phenotypic values for depths of eye muscle (EMD) and fat (FAT) and assigned them to dietary treatments designed to achieve low (LOW, n = 244) or high (HIGH, n = 237) rates of liveweight gain during a 28‐day mating period. The LOW treatment maintained live weight, whereas the HIGH treatment gained 179 ± 3.8 g/day (p < 0.001). From those ewe lambs that attained puberty, first oestrus was detected at live weight 37.8 ± 0.2 kg and age 232 days. The proportion of ewes that attained puberty increased with EMD (p < 0.01). Ewes from the HIGH treatment were more fertile (pregnant ewes per 100 ewes exposed to rams) and had a higher reproductive rate (foetuses in utero per 100 ewes exposed to rams; p < 0.001) than those from the LOW treatment. Fertility and reproductive rate were positively correlated with weight gain during mating as well as live weight at the start of mating, FAT and EMD (p < 0.05 to <0.001). We conclude that faster growth, due to either extra nutrition during mating or higher phenotypic potential for fat and muscle, will increase reproductive performance in ewe lambs mated at 8 months of age. 相似文献
88.
The heat capacities of AgMo(4)S(5), PbMo(6)S(7), and SnMo(5)S(6) are reported. These ternary molybdenum sulfides have been found to be bulk superconductors with very large values of electronic heat capacity coefficients and very low values of Debye temperatures. 相似文献
89.
Khanum F Siddalinga Swamy M Sudarshana Krishna KR Santhanam K Viswanathan KR 《Plant foods for human nutrition (Dordrecht, Netherlands)》2000,55(3):207-218
Legumes, leafy vegetables,roots and tubers, gourds and other vegetables were analyzed for total (TDF), soluble (SDF) and insoluble (IDF) dietaryfiber contents, both before and after cooking eitherby a conventional open-pan method or by pressurecooker. Data revealed a significant increase inSDF fraction with a concomitant decrease in the IDFfraction upon cooking by both the methods employed. Although the decrease in IDF matched the increase inSDF values in some cases, it was found to be more invegetables categorized as `other'. The dietary fiber values have also been reported on a fresh weight basis which may serve as a guideline for calculating dietary intake of eachcomponent by the consumer. 相似文献
90.
Viswanathan MB Thangadurai D Vendan KT Ramesh N 《Plant foods for human nutrition (Dordrecht, Netherlands)》1999,54(4):345-352
Seeds of Teramnus labialis (L.) Spreng.(Fabaceae), used as food by Malayali tribals in theKollihills of Salem District, Tamil Nadu in SouthIndia, were investigated for their nutritional value. These seeds were analyzed for proximate composition,total (true) seed proteins, seed proteinfractions, amino acid composition, fatty acidcomposition, minerals and antinutritional factors. Crude protein, crude fat, ash, and nitrogen freeextracts constituted 22.86%, 6.10%, 4.62%, and,58.15%, respectively, of the seed weight. The caloricvalue of 100 g dry matter of seed material was 378.94kcal. The essential amino acids lysine, leucine +isoleucine, arginine, valine and histidine werepresent in relatively large quantities. Theunsaturated fatty acids constituted more than 60% ofthe crude fat. Concentrations of minerals such aspotassium, magnesium, calcium, and, phosphorus werehigh. Antinutritional factors such as total freephenols, tannins, L-DOPA, hydrogen cyanide andphytic acid were present in minute quantities. Theseantinutritional factors are potentially eliminated using the conventional method of soaking the seeds in water,boiling with water and decanting prior to consumption. 相似文献