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出口褐云玛瑙螺（蜗牛）肉干营养成分的研究 总被引：1，自引：0，他引：1
沈忠明 《四川畜牧兽医学院学报》1999,13(4):33-37
用理化方法定量测定褐云玛瑙螺肉干的蛋白质,脂肪等常规营养成分－蛋白质含量（69．6±1．5）％,脂肪含量（3．46±0．06）％。并用氨基酸自动分析仪和原子吸收光光度分别测定人各种氨基酸含量和部分微量元素。结果表明：褐云玛瑙螺肉干是高蛋白,低脂肪食品,含有人体所需的多种氨基酸和矿物元素,营养价值高。 相似文献
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我国蜗牛养殖业是从８０年代崛起的新兴产业，发展速度迅猛，现已成为我国特产农业发展和出口创汇项目中的热点。现将我国蜗牛养殖情况作一概述。 一、我国蜗牛养殖业现状 １．蜗牛养殖多品种 我国人工养殖蜗牛品种有褐云玛瑙螺、白肉蜗牛（褐云玛瑙的变异种）、光亮大蜗牛、散 相似文献
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玉米花粉对非洲蜗牛幼体存活率及生长影响的研究青岛海洋大学海洋生命学院郎刚华中科院海洋研究所王勇山东师范大学生物系王学军，冯静仪褐云玛瑙螺（Ａｃｈａｔｉｎａｆｕｌｉｃａ）又名非洲蜗牛，是一种高蛋白低脂肪的经济动物。据测定，１００ｇ干蜗牛肉含蛋白质６０．... 相似文献
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屠宰猪肝脏病变的特征 总被引：1，自引：0，他引：1
屠宰猪肝脏检验、处理是动物卫生检验工作中的重要环节。猪肝脏上的病变多而且比较复杂。现对猪肝脏的常见病变做初步归纳。1 间质性肝炎肉眼观察肝脏表面有局灶性或片状增厚的白色斑纹，触之坚硬，有的呈云雾状。切面小叶间结缔组织增生变宽，但肝脏外形无变化。早期镜检可见包膜下局部及邻近小叶间质结缔组织增生，有大量嗜酸性白细胞和少量单核细胞，并且淋巴细胞浸润；后期浸润的嗜酸性白细胞数量减少，淋巴细胞增多，结缔组织中粗大的胶原纤维明显。病变严重时，病灶边缘的肝细胞萎缩变窄。 相似文献
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从１９８９年进入屠宰场检疫，共检猪２００００余头，常见到猪肝脏有几种病变，现总结如下。１ 症状间质性炎。在肝脏表面紧靠包膜下见有局灶性或片状增厚的白色斑纹，触之坚硬；有的呈云雾状；切面小叶间结缔组织增生、变宽。但肝脏外形无变化。肝脏包膜表面附有丝网状纤维素或绒毛状白色结缔组织。肉芽肿性结节。肝实质内见高粱粒至绿豆大的白色结节。有的在浅部，有的在深部。切面上结节的中心为坏死物质，边缘为白色结缔组织包囊，结缔组织周围肝组织下陷。肝内瘢痕。在肝脏表面紧靠纤维膜下方见有数厘米大小、质地坚硬的白色局部花瘢… 相似文献
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Ultrastructural study of the liver and kidney in ochratoxicosis A in young broiler chicks 总被引：1，自引：0，他引：1
Ultrastructural changes are reported in the kidney and liver of 20-day-old broiler chicks fed ochratoxin A (OA), incorporated in the diet at levels of 2 and 4 ppm. Changes in the kidney included the presence of abnormally shaped mitochondria in the proximal convoluted tubules. There was an increase in the size and number of mitochondrial dense granules and cytoplasmic peroxisomes. Intranuclear and cytoplasmic lipid droplets and electron dense round bodies in the dilated smooth endoplasmic reticulum were also noted. Regional thickening and degeneration of the glomerular basement membrane was observed in some cases. In the liver from OA fed birds there was an increased accumulation of cytoplasmic glycogen in the hepatocytes. Abnormal mitochondrial ring forms in the kidney and the accumulation of glycogen in the liver are considered to be of diagnostic significance in ochratoxicosis of young broiler chicks. The severity of the changes was found to be dose related. These results suggest that the mitochondria in the proximal convoluted tubules of kidney were most sensitive to OA toxicity. 相似文献
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Morphological changes in response to 2-chloro-4-acetotoluidine (CAT) toxicity in the quail appeared in the form of progressive necrosis of the kidney, particularly the proximal tubular epithelial cells. Changes at 32 hr after the CAT administration included vacuolar degeneration, dilatation of distal tubules containing hyaline and granular casts, overt necrosis, and deposition of urate casts in collecting tubules. There were no striking histopathological changes in the liver at 24 hr. However, small focal necrotic lesions were seen 32 hr after the CAT administration. A 40% protection against the toxicity of CAT at the lower dose was seen in quail pretreated with phenobarbital. The protection offered by phenobarbital pretreatment was attributed to a quantitative shunting of CAT and/or its reactive metabolite along the microsomal-mediated metabolic pathway of the kidney responsible for their inactivation. Administration of reduced glutathione (GSH) to quail treated with CAT offered little protection against the toxicity. The quail treated with a toxic dose of CAT had an increased level of thiobarbituric acid (TBA) reacting products in the liver, with a concomitant decrease in GSH content. This suggests that lipid peroxidation may be involved in CAT-induced hepatic damage of quail. It was hypothesized that the depletion of protective GSH stores coincident with gradual shutdown of the protective peroxidase system of the kidney may occur in a more advanced stage of CAT toxicity in quail. This would then result in a severe disturbance in renal excretion of uric acid and in frank necrosis of renal tubules. 相似文献
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Abbassi H Coudert F Chérel Y Dambrine G Brugère-Picoux J Naciri M 《Avian diseases》1999,43(4):738-744
Renal Cryptosporidiosis was experimentally induced during a study to investigate the pathogenicity of Cryptosporidium baileyi in specific-pathogen-free (SPF) chickens coinfected with Marek's disease virus (MDV). Cryptosporidium baileyi was administered orally at 4 days of age to chickens previously infected at hatching (day 0) with the HPRS 16 strain of oncogenic MDV. Three control groups received MDV at hatching, C. baileyi on day 4, or placebo consisting of distilled water. Renal cryptosporidiosis lesions were induced in the group coinfected with MDV and C. baileyi. The kidneys were markedly swollen and pale, with visible urate crystals in the ureters and surface tubules. Oocysts of C. baileyi were demonstrated in six of seven cases tested by a scoring method with modified Sheather's sugar solution on renal tissue scrapings and were confirmed in three cases by histologic examination of paraffin-embedded kidney sections. Histologic study also revealed subacute interstitial nephritis, acute ureteritis, and attachment of cryptosporidia on the epithelial cell surface of the ureters and collecting ducts, collecting tubules, and distal convoluted tubules. Various developmental stages of the parasite were present in the kidney sections. To our knowledge, this is the first report of experimentally induced renal cryptosporidiosis in SPF chickens coinfected with MDV. 相似文献
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WU Hai-gang XU Guang-ke HU Jing LIU Jin-ni CHEN Qin-xi ZHANG Ying-bing JI Wan-min YI Ben-chi MA Yun 《中国畜牧兽医》2017,44(8):2523-2528
The purpose of this study was to evaluate the safety of the cefquinome sulfate liposomes by using the acute toxicity test, local irritation test and chronic toxicity test. The results showed that the LD50 of cefquinome sulfate liposomes was 639.73 mg/kg after intramuscular injection of its suspension and 95% confidence interval was 573.06 to 714.17 mg/kg. There was no significant stimulation to muscle. Subchronic toxicity test showed that the weight, haematological indexes and biochemical criterion of rabbits in variety dose had no significant difference compared with normal group (P>0.05). There was no visible pathological changes on the liver,kidney histology. According to pathological observation, the structure of liver and kidney were clear in treated and middle dose groups,but there existed disorganized hepatic cell cord in the liver and hemorrhag between glomerulopathy,tubulointerstitial and hepatic sinusoids in high dose group. All results proved that the cefquinome sulfate liposomes was safe and reliable based on the animal experiments. 相似文献
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采用急性毒性试验、局部刺激性试验和亚慢性毒性试验对硫酸头孢喹肟脂质体安全性进行评价,以期为临床用药提供参考。小鼠腹腔注射硫酸头孢喹肟脂质体半数致死量（LD50）为639.73 mg/kg,95%可信限为573.06~714.17 mg/kg;该制剂对家兔股四头肌未见明显刺激作用;各给药剂量组家兔的体重、血液学指标、生化指标与对照组比较均无显著差异（P>0.05）;对肝脏和肾脏病理学观察表明,正常治疗剂量和中剂量组肝脏和肾脏组织结构清晰,但高剂量组出现肝细胞排列紊乱,肝血窦间出血,肾小球、肾间质有散在出血。以上结果表明硫酸头孢喹肟脂质体安全可靠,可应用于兽医临床。 相似文献
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Yamamoto E Maruyama T Masuno K Fujisawa K Takasu N Tsuchiya N 《Journal of toxicologic pathology》2010,23(2):91-94
A young male Crl:CD (SD) rat with erythroid leukemia that presented with emaciation, abdominal distension and a pale visible mucosal membrane was euthanized at 7 weeks of age. At necropsy, enlargement of liver, spleen and pancreatic lymph node was noted. Analysis of blood smear samples revealed many mono- or binucleated erythroblasts that had PAS-positive vacuoles in the cytoplasm. Histopathologically, neoplastic proliferation of atypical cells was observed in the hepatic sinusoids, splenic red pulp, bone marrow, pancreatic lymph node, kidney and lung. Neoplastic cells showed a round to spindle shape, and some neoplastic cells had deeply stained small nuclei and small cytoplasms and resembled erythroblasts. Immunohistochemically, many neoplastic cells were positive for hemoglobin. To our knowledge, this is the first report of erythroid leukemia in a rat of this age. The observed features were similar to those of pure erythroid leukemia in humans. 相似文献
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2010年春季以来,在辽西部分养羊户中的断奶羔羊及育成羊群中出现不明原因的死亡现象,经抗生素等药物进行常规治疗无效,死亡率达12％.临床症状为可视黏膜及皮肤重度黄染并排血红蛋白尿,最后因肝肾功能衰竭死亡;病理剖检变化为肝、肾变性坏死及实质性器官出血性变化为主.通过流行病学调查,并对病死羊进行病理剖检及对饲料真菌毒素的检... 相似文献
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Bile duct dysplasia and congenital hepatic fibrosis associated with polycystic kidney (Caroli syndrome) in a rat 总被引：1，自引：0，他引：1
Hepatic fibrosis with bile duct ectasia and hyperplasia associated with polycystic kidney disease, analogous to Caroli syndrome in humans, was observed in a rat used as a control in a subchronic toxicity study. Light microscopy of liver sections showed multiple cystic and segmental saccular dilatations and hyperplasia of the intrahepatic bile ducts associated with overgrowth of portal connective tissue; the kidneys had diffuse cystic dilatation of cortical renal tubules. The lesions resembled those of human cases of the fibropolycystic disease termed as Caroli syndrome, which is thought to be the result of a pathologic developmental process known as ductal plate malformation. Recently, an animal model of Caroli syndrome has been described in mutant rats from a colony that constantly showed renal and hepatic cysts and an autosomal recessive mode of inheritance. The finding in our case of identical hepatorenal lesions suggests that the same mutation has occurred incidentally in a standard colony. 相似文献
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研究腺嘌呤不同浓度和不同干预时间对大鼠肾功能的影响及右归丸的治疗作用。分别采用0.5%腺嘌呤、1.0%腺嘌呤和1.5%腺嘌呤进行造模,造模10 d、15 d或20 d后观察大鼠肾脏外观形态、肾脏系数和肾脏组织病理变化。结果显示,与正常对照组比较,除第10天和第15天0.5%腺嘌呤造模肾脏外观形态变化不明显外,其余各造模组的肾脏外观形态均发生改变,表面呈现不同密集程度的白色颗粒状,部分伴有水肿和肾脏颜色的改变,包膜易剥脱;肾脏系数在各造模组中均增加,并且见肾小球数目减少、萎缩,肾小管扩张,随造模腺嘌呤浓度的升高,间质伴有不同程度的炎性细胞浸润和纤维结缔组织的增生。与模型组比较,右归丸给药组和自然恢复组能在一定程度上改善肾脏外观形态、肾脏系数和肾脏组织病理变化,其中以右归丸给药组改善明显。说明1.0%腺嘌呤造模15 d,可成功复制稳定的慢性肾功能衰竭大鼠模型,并且右归丸对慢性肾功能衰竭大鼠模型具有一定的治疗作用。 相似文献