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1.
Priapism developed in a cat 2 days after castration and strangury. The priapism was unresponsive to massage and antimicrobial treatment. Because of penile engorgement and necrosis, a perineal urethrostomy was performed. Clinical signs of priapism resolved after urethrostomy. Histologic examination of tissues revealed vascular stasis within the corpus cavernosum penis and funiculitis of the right spermatic cord.  相似文献   

2.
A 14-year-old Friesian breeding mare had strangury, depression, inappetence, neutrophilia and uraemia. Its urine had a low specific gravity and contained protein, blood cells and bacteria. Rectal examination showed that both kidneys and ureters were enlarged. Post mortem examination confirmed the diagnosis of pyelonephritis and revealed that small tumours in the vulva were probably the cause of the uropathy.  相似文献   

3.
Nylon cable bands used as ligatures caused postsurgical complications in 5 ovariohysterectomized bitches. Clinical signs included fever, stiffness, strangury, draining fistulae, vaginal discharge, and tenesmus. Most signs first appeared several years after surgery, and all signs were resolved after removal of the bands. On the basis of our experience, we suggest that nylon cable bands not be used for ovariohysterectomy ligations.  相似文献   

4.
Urolithiasis has been reported in veterinary literature in some species of the Mustelidae family, including ferrets. In this species, the most common form of urolithiasis is that caused by struvite. The current study examined the case of mixed urolith in an 8-month-old female ferret (Mustela putorius furo) with antecedents of strangury and hematuria. A cystotomy was carried out to remove the urolith, which had a rough surface and a homogeneously porous interior and was formed by a mixture of struvite (60%) and calcium oxalate dehydrated (40%).  相似文献   

5.
Forty-one cases of infiltrative urethral disease in female dogs were reviewed. The cause was epithelial neoplasia in 29 dogs, granulomatous (chronic active) urethritis in 10 dogs, and leiomyoma in 2 dogs. Clinical signs of disease were similar in dogs with neoplastic and inflammatory disease and included strangury (36/41), hematuria (30/41), pollakiuria (20/41), vaginal discharge (16/41), and complete urinary obstruction (7/41). Results of aspiration biopsy of the urethra correlated with those of surgical biopsy in 11 of 15 dogs. In 4 of 15 dogs, results of cytologic and histologic examinations differed. Granulomatous (chronic active) urethritis is an infiltrative urethral disease in female dogs. Clinical findings are similar, but the prognosis is more favorable than that in dogs with urethral epithelial neoplasia.  相似文献   

6.
黄土丘陵区植被演替中不同草本植物间的化感效应   总被引:1,自引:0,他引:1  
为了解植被演替过程中不同植物间的化感作用,选取黄土丘陵区退耕地撂荒演替中不同阶段的优势物种茵陈蒿(Artemisia capillaries)和铁杆蒿(Artemisia sacrorum),分析它们对其他植物种子萌发及幼苗生长的影响。结果表明:不同部位水浸提液由于其化感物质及其释放方式的不同,化感作用存在明显差异。演替前期物种茵陈蒿水浸提液对铁杆蒿和白羊草(Bothriochloa ischaemum)种子萌发有明显抑制作用,而对达乌里胡枝子(Lespedeza davurica)和白羊草幼苗的生长总体表现为促进作用;茵陈蒿根际土和根系水浸提液促进铁杆蒿、白羊草和达乌里胡枝子根的生长,而地上部水浸提液可促进白羊草和胡枝子根的生长。演替后期物种铁杆蒿对茵陈蒿和白羊草种子萌发有较强的抑制作用;其根际土和根系水浸提液可促进茵陈蒿、白羊草和达乌里胡枝子幼苗的生长;地上部水浸提液抑制白羊草和达乌里胡枝子幼苗的生长。茵陈蒿和铁杆蒿对于自身种子萌发以及幼苗的生长具有一定的自毒作用,表现为茵陈蒿根系和地上部水浸提液强烈抑制自身种子萌发;高浓度的铁杆蒿根系和地上部水浸提液对自身的种子萌发以及根、芽的生长具有明显抑制作用。综上所述,茵陈蒿和铁杆蒿不同部位水浸提液对4种受体植物种子萌发表现出不同程度的抑制作用,对根和芽的生长呈现出由"高抑低促"的作用。  相似文献   

7.
松嫩平原两个生态型羊草叶构件异速生长规律   总被引:8,自引:4,他引:4  
周婵  杨允菲 《草业学报》2006,15(5):76-81
对在不同生境的2个生态型羊草叶片、分蘖株的生长指标进行测定,为提高牧草生产产量和质量提供理论依据。在沙土和盐碱土生境下,灰绿生态型和黄绿生态型羊草不同龄级分蘖株叶生物量均随分蘖株生物量、高度的增加而增加,不同叶位的叶宽也随叶长的增加而增加。经回归分析,叶生物量与分蘖株生物量、高度之间,叶宽与叶长之间关系符合y=axb幂函数的生长关系,达到显著或极显著相关。方程中的b值表示叶生物量或叶宽的增加速率。在所用函数中,幂函数变化规律更具有生物学和生态学意义。在松嫩平原的繁殖期,灰绿型和黄绿型羊草不同龄级分蘖株叶构件具有相同的异速生长和生物量积累规律。2个生态型羊草叶构件的生物量、叶长、叶宽、生长和生物量积累规律等在相同生态型不同生境之间,相同生境不同生态型之间,以及不同龄级分蘖株之间的各个数量指标均有一些差异,但变化幅度不大,是2个生态型对其所在生境产生的相应适应性反应,具有明显的生态可塑性。  相似文献   

8.
对青海省柴达木盆地温性荒漠区主要野生灌木驼绒藜、唐古特白刺、柽柳、盐爪爪、梭梭、木本猪毛菜不同器官(根、枝、叶)的脯氨酸和可溶性糖含量,以及叶片和嫩枝叶绿素a和叶绿素b含量进行测定。结果表明,唐古特白刺和柽柳各器官的脯氨酸和叶绿素含量显著高于其他4种灌木,木本猪毛菜根系具较高脯氨酸含量;植物可溶性糖含量不同器官存在差异,木本猪毛菜各器官、唐古特白刺和柽柳叶片的根系可溶性糖含量较高;所有植物叶绿素a>叶绿素b,嫩枝叶绿素含量比叶片少。由模糊数学隶属函数得出,唐古特白刺抗旱性最强,柽柳和木本猪毛菜次之,梭梭,盐爪爪和驼绒藜的抗旱性较弱。  相似文献   

9.
为探究大狼毒(Euphorbia jolkinii)是否会对其它物种产生化感作用,促进大狼毒蔓延区退化草地的恢复治理,本研究以紫花苜蓿(Medicago sativa)为受体材料,采用培养皿滤纸法和穴盘培养法,开展大狼毒对紫花苜蓿种子萌发及幼苗生长的化感效应研究,结果表明:大狼毒对紫花苜蓿种子萌发率和萌发进程体现为"化...  相似文献   

10.
对15只雷州山羊肺、肾、卵巢、肝、脾、胰进行了组织学观察,结果如下:①肺的实质由导气部和呼吸部组成,导气部中主要见到的是细支气管和终末细支气管,偶见小支气管,细支气管黏膜上皮形成许多明显的皱襞,固有膜下有完整的平滑肌。肺泡呈多面形囊泡,壁极薄,由肺泡上皮围成;②肾内皮质肾单位和髓旁肾单位在数量上无明显差别,髓放线发达,有一些髓放线深入皮质浅层,在延伸中逐渐变细;③卵巢被膜下有许多原始卵泡,皮质中生长卵泡也很多,偶见成熟卵泡;④肝间质组织少,肝小叶分界不清,切面呈不规则的多边形,肝细胞以中央静脉为中心呈放射状排列;⑤脾脏表面覆有一层较厚的由平滑肌组成的被膜,染成红色,被膜结缔组织伸入脾内形成许多分支的小梁。白髓中脾小结呈圆形或卵圆形,淋巴细胞密集。脾索含有较多的血细胞而红染,相互连接成网;⑥胰的表面由少量结缔组织组成的被膜,胰岛大小不等,胰岛细胞呈梭形或圆形,核染色较淡。  相似文献   

11.
The efficiency of a mixture of xylanase and beta-glucanase enzymes was evaluated in two separate experiments on growing turkeys offered diets based on wheat or wheat and barley. 2. In the first experiment, the addition of 560 and 2800 IU of xylanase and beta-glucanase, respectively, per kg of diet significantly improved feed efficiency in turkeys fed on wheat- and barley-based diet throughout the entire experiment (42 d). 3. In the second experiment, the enzyme mixture significantly increased N-corrected apparent metabolisable energy (AMEN) by approximately 5%. 4. Furthermore, the combination of xylanase and beta-glucanase significantly improved body weight gain and feed efficiency. Feed efficiency was increased by 2.94, 2.47 and 5.91% in diets based on 500 then 540 g of wheat/kg of diet, 394 then 384 g of wheat and 100 then 150 g of barley/kg of diet and 180 g of wheat and 300 then 350 g of barley/kg of diet, respectively. 5. This enzyme mixture decreased in vitro viscosity of wheat, barley and soybean meal, the effect being larger for wheat and barley than for soybean meal. 6. In conclusion, the supplementation of diets based on wheat and barley with xylanase and beta-glucanase significantly improved body weight gain and feed efficiency. Therefore, wheat and barley could be used more efficiently by turkeys in the presence of an appropriate enzyme preparation.  相似文献   

12.
水貂多态蛋白位点与经济性状相关的研究   总被引:1,自引:0,他引:1  
通过建立一般线性模型对美国短毛黑、大连金州黑和左家型水貂遗传标记的筛选,方差分析表明,Pi-3对左家型水貂皮张长度有显著影响,Pi-3位点与美国短毛黑针绒毛长度比之间存在显著相关,Est是对金州黑水貂体重影响较大的位点,Po是对金州黑水貂针绒毛长度比影响较大的位点,Po和Est对金州黑水貂绒毛长度有显著影响。最小二乘均数结果表明,左家型水貂Pi-3的AA型与AB型间皮长差异显著,美国短毛黑中Pi-3的AA型与AB型间针绒毛长度比差异显著,金州黑水貂Est的AB和BB型体重之间也有显著差异,金州黑水貂Po的AA型与AB型的针绒毛长度比有显著差异,金州黑水貂Po的AA型与BB型和Est的AB和BC基因型之间的绒毛长度也有显著差异。  相似文献   

13.
白三叶和高羊茅对青菜幼苗生长的化感抑制效应   总被引:17,自引:6,他引:11  
朱旺生  沈益新 《草业学报》2004,13(5):106-111
用白三叶和高羊茅茎叶的水浸提溶液处理,初步探讨了白三叶和高羊茅对青菜种子发芽和幼苗生长的化感抑制效应及机理.结果表明,白三叶和高羊茅茎叶浸提液对青菜种子的发芽率和幼苗生长均有不同程度的抑制作用;抑制作用具有明显的供体种和品种间差异,白三叶的抑制作用显著大于高羊茅.化感物质定性鉴定表明,白三叶和高羊茅浸提液中含邻位和间位羟基的酚类化感物质.这些化感物质通过抑制细胞生长和影响细胞膜的功能而抑制青菜幼苗的生长.  相似文献   

14.
The histomorphological findings and immunohistochemical expression of matrix metalloproteinases (MMPs-1, 2, 9 and 14) and their tissue inhibitors (TIMPs-2, 3 and 4) are reported in the parietal (pTV) and septal leaflets (sTV) of the tricuspid valves in normal dogs and dogs with chronic valvular disease (CVD). The layers of the normal sTV were not as well defined as in the pTV and the spongiosa of the sTV contained abundant mucopolysaccharides (MPS) and adipocytes. In CVD, there was expansion of the spongiosa of the pTV due to deposition of MPS, leading to formation of nodules along the free edge. In CVD, there was fibrosis of the atrialis of the sTV and formation of nodular deposits of MPS in the spongiosa and ventricularis, mainly affecting the proximal and middle parts of the leaflet. In dogs with normal pTV and sTV, MMPs-1 and 14 and TIMPs-2, 3 and 4 were expressed, while MMPs-2 and 9 were absent. In mild CVD, expression of MMPs-2, 9 and 14 were increased in the pTV, whereas small foci within the spongiosa contained MMP-9 and TIMP-3 positive cells. In advanced CVD, MMP-14 also was increased in the pTV. In mild CVD, there was increased expression of MMPs-1 and 2 and TIMP-2, but decreased expression of TIMP-4, in the sTV. Small foci with expression of MMP-14 and TIMPs-2, 3 and 4 were also present in the sTV in mild CVD. In advanced CVD, there was increased expression of MMPs-2 and 9 and TIMP-2 in the sTV. In CVD there is upregulation of various MMPs in the pTV, whereas there is a complex alteration in expression of MMPs and TIMPs in the sTV.  相似文献   

15.
Background: Urinary sediment examination and quantitative urinary culture results are frequently discordant. Objectives: The aims of this study were to compare accuracy of light microscopic examination of wet‐mounted unstained (wet‐unstained) and air‐dried modified Wright‐stained (dry‐stained) sedimented preparations of urine with results of quantitative aerobic bacterial culture for detection and characterization of bacteriuria in cats. In addition, the presence of pyuria detected by urinalysis and potential risk factors were assessed. Methods: A blinded prospective study was conducted on 472 urinary samples collected from 410 cats by cystocentesis. The age and sex of each cat were recorded. Complete urinalyses were performed and included quantification of WBCs. Quantity and morphology of bacteria in each specimen were determined by light microscopic examination of wet‐unstained (performed by certified medical technologists) and dry‐stained (performed by a veterinary clinical pathologist) sedimented preparations of urine and compared with results of quantitative bacterial cultures. Results: Of 472 urinary specimens, 29 were positive for bacteriuria by culture and considered true positives and 443 were considered true negatives. Compared with these results, examination of wet‐unstained and dry‐stained urines had sensitivities of 75.9% and 82.8%, specificities of 56.7% and 98.7%, and test efficiencies of 57.8% and 97.7%, respectively. Positive likelihood ratios were 1.8 and 63.7 and negative likelihood ratios were 0.42 and 0.17 for wet‐unstained and dry‐stained examinations, respectively. Compared with 29 culture‐positive samples, the wet‐unstained method had morphologic concordance and misclassification rates of 37.9% and 62.1%, respectively, whereas the dry‐stained method had morphologic concordance and misclassification rates of 65.5% and 34.5%, respectively. Only 34% of samples with bacteriuria had pyuria. Frequency of bacteriuria was not significantly different based on age and sex of the cats, but there was a tendency for increased frequency in female cats and in cats >10 years old. Conclusions: Staining dried urinary sediment with a modified Wright‐stain significantly improved sensitivity, specificity, and test efficiency of microscopic detection and classification of bacteriuria compared with the wet‐unstained method. Pyuria should not be a criterion for determining the presence or absence of bacteriuria.  相似文献   

16.
The goal of our study was to document traditional steppe herders' perception and management of spatial and temporal heterogeneity of forage availability of their seminatural pastures. Ninety-two herders living in the Hortobágy saline steppe, Hungary, Central Europe were interviewed, and participatory observation was used to understand herding and habitat improvement techniques. The herders recognized 47–66 habitat types (mostly grassland types), and listed at least 90 plant species important for grazing. They have a nuanced knowledge of the intra- and interannual variations of forage quality and quantity. They perform very strong and well-planned herding practices. Daily spatial pattern of grazing is, however, often opportunistic and flexible, but has a more-or-less regular year-round cycle, in which marshes and stubbles provide forage in drought periods. Reciprocal learning and continuous communication between the herder and his driving dogs and livestock strongly influence grazing pattern. Herders manage and improve different habitats of their pastures differently by traditional and, less frequently, modern methods. The main method is grazing supplemented by manuring, burning, and removal of spiny weeds. Traditional knowledge of herders could be effectively used in evidence-based conservation and pasture management of European saline steppes; e.g., the reintroduction of some old herding techniques (opportunistic pasture use, grazing of marshes, and burning). Herders' knowledge could also help the fine-tuning and local adaptation of European agri-environmental regulations (e.g., how to balance subsidies for hay-making and grazing in saline steppes). More research is needed, however, on the ecological effects of different traditional grazing techniques, e.g., rotation, manuring, and burning. In general a more complex socio-ecological understanding of the internal and external factors affecting adaptation of the Hortobágy herders to changing environment, society, and European Union policies is needed.  相似文献   

17.
几种豆禾牧草混播初期生长互作效应的研究   总被引:10,自引:4,他引:6  
选用豆科与禾本科牧草各两种互为混播组合,研究其混播状态下种子萌发及幼苗生长的互作效应,结果表明:当以白三叶、紫花苜蓿为作用牧草,并随期播量增加时,受体牧草高羊茅与紫羊茅种子萌发及幼轩生长受到显著影响,受体牧草紫花苜蓿种子萌发及幼苗生长则对幼苗生长有促进作用。互作效应强度的进一步分析表明,豆科牧草对禾本科牧草的作用一般较强,并在初期生长阶段有较好的表现。这一结果与混播草地豆科牧草所表现的特征相符。因此本研究可从一个侧面为混播草地豆禾组合相容性提供可资借鉴的高效简捷的判定方法。  相似文献   

18.
铅、镉胁迫对饲用高粱生长及铅、镉吸收和累积的影响   总被引:3,自引:0,他引:3  
采用盆栽试验研究了不同浓度的土壤外源重金属Pb,Cd及其复合胁迫对饲用高粱(Sorghum vulgare)生长的影响及其对Pb和Cd的积累能力。结果表明:随着Pb和Cd单一及复合胁迫浓度的增加,饲用高粱株高、生物量呈降低趋势,Pb和Cd含量呈增加趋势,茎鞘Cd含量及Cd累积量高于叶片,叶片Pb含量及Pb累积量高于茎鞘。在复合胁迫下,低、中浓度的Pb和Cd处理表现出相互促进吸收累积,高浓度处理表现出相互抑制吸收累积的特性,饲用高粱对Cd的富集能力远大于Pb。研究结果将为利用饲用高粱修复重金属污染土壤提供理论依据。  相似文献   

19.
不同玉米品种(系)的全株、果穗与秸秆青贮特性比较   总被引:1,自引:0,他引:1  
为比较不同玉米品系的全株、果穗及秸秆青贮效能和利用特性,以3个粮饲通用玉米新品系和1个专用青贮玉米为材料,于3/4乳线期测定生物产量及相关农艺性状,制作全株、果穗及秸秆青贮,发酵60 d后测定营养成分和发酵品质。结果表明:4个品种(系)生育期变幅为120~123 d,MTP-080生育期最长且绿叶数及绿叶比最高,MTP-082生育期居中但全株和果穗鲜干产量均最高。全株青贮中雅玉青贮8号的中性洗涤纤维和酸性洗涤纤维含量最高,MTP-082粗蛋白、淀粉和可溶性碳水化合物含量均最高,MTP-082泌乳净能显著高于雅玉青贮8号和MTP-080。各品种(系)全株及果穗青贮pH为3.53~4.07,氨态氮/总氮小于10%,费氏评分均在110分以上,青贮发酵品质总体评价均为优级。果穗青贮总能、总可消化养分、消化能、代谢能、维持净能、增重净能及泌乳净能显著高于全株青贮和秸秆青贮。果穗青贮相对饲用价值为全株青贮的2.05倍、秸秆青贮的3.37倍。综上,粮饲通用型青贮玉米如MTP-082全株青贮产量高,持绿性适中,营养价值和发酵品质优,而且是制作果穗青贮的优质原料,因地制宜选择粮饲通用玉米发展果穗青贮将有利于种养殖业节本增效。  相似文献   

20.
Epidemics of epizootics and occurrence of multiresistant antibiotics of pathogenic bacteria in aquaculture have put forward a development of effective probiotics for the sustainable culture. This study examined the effectiveness of forms of mixed Bacillus probiotics (probiotic A and probiotic B) and mode of probiotic administration on growth, bacterial numbers and water quality during rearing of white shrimp (Litopenaeus vannamei) in two separated experiments: (1) larval stages and (2) postlarval (PL) stages. Forms of Bacillus probiotics and modes of probiotic administration did not affect growth and survival of larval to PL shrimp. The compositions of Bacillus species in probiotic A and probiotic B did not affect growth and survival of larvae. However, postlarvae treated with probiotic B exhibited higher (P<0.05) growth than probiotic A and controls, indicating Bacillus probiotic composition affects the growth of PL shrimp. Total heterotrophic bacteria and Bacillus numbers in larval and PL shrimp or culture water of the treated groups were higher (P<0.05) than in controls. Levels of pH, ammonia and nitrite of the treated shrimp were significantly decreased, compared to the controls. Microencapsulated Bacillus probiotic was effective for rearing of PL L. vannamei. This investigation showed that administration of mixed Bacillus probiotics significantly improved growth and survival of PL shrimp, increased beneficial bacteria in shrimp and culture water and enhanced water quality for the levels of pH, ammonia and nitrite of culture water.  相似文献   

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