黄海北部发现的中华白海豚Ⅰ.外形和内脏器官的测定结果   总被引：7，自引：1，他引：7  

韩家波  马志强  王丕烈  董颖 《水产科学》2003,22(6):18-20

中华白海豚(SousaChinensis)属于国家Ⅰ级重点保护野生动物,在中国主要分布于广西、海南、广东、香港、澳门、台湾、福建、浙江沿岸,向北可达长江口。2003年5月9日在黄海北部(北纬39°35′01″,东经122°51′50″),由于渔业生产误捕的中华白海豚,是迄今为止该种发现的最北记录,笔者报告了对该海豚的外形和内脏器官测定结果。  相似文献   

在草鱼免疫反应中莨菪佐剂性的初步观察   总被引：3，自引：0，他引：3  

赵建培  史维舟 《淡水渔业》1995,25(1):3-5

在草鱼免疫反应中莨菪佐剂性的初步观察赵建培（福州市郊区水产技术推广站，福州３５００１１）史维舟，陈昌福（华中农业大学水产学院，武昌４３００７０）已有研究报道指出，英若具有增强鱼类免疫力的作用［１］。但是，关于度著究竟是如何作用于鱼类的免疫系统，即为什...  相似文献   

环境胁迫对对虾免疫系统的影响研究   总被引：2，自引：0，他引：2  

杨玉姣  王国良  金珊  郑天伦 《水产科学》2006,25(12):652-655

环境胁迫（environmental stress）是指环境对生物所处的生存状态产生的压力，分为急性环境胁迫和慢性环境胁迫。捕捞、干扰、水质的突变等可以引起急性环境胁迫，而水质逐渐恶化和高密度放养等会造成慢性胁迫。近年来随着人类活动范围的不断扩大和程度的加深，环境资源受到了很大的破坏，养殖对虾受到的环境胁迫日益严重。这些胁迫可使对虾产生应激反应，虽然这是一种保护性反应，但持续处于应激状态，机体的免疫防御体系的功能会受到抑制，就会影响到其抗病力。当前对虾的病害越来越严重，大规模的死亡已经成为制约养殖业发展的瓶颈。  相似文献   

Cellular immunophenotypic profile in the splenic compartment during canine visceral leishmaniasis     

Alexandre Barbosa Reis  Andréa Teixeira-Carvalho  Rodolfo Cordeiro Giunchetti  Bruno Mendes Roatt  Wendel Coura-Vital  Roney de Carvalho Nicolato  Denise Silveira-Lemos  Rodrigo Corrêa-Oliveira  Olindo de Assis Martins-Filho 《Veterinary immunology and immunopathology》2014,157(3-4):190-196

To determine the role of the spleen in the pathogenesis of canine visceral leishmaniasis (CVL), we analyzed cellular immunophenotypic profiles of 52 dogs naturally infected with Leishmania infantum, clinically classified as follows: asymptomatic dogs-I (AD-I), seronegative/PCR+; asymptomatic dogs-II (AD-II), seropositive/PCR+; oligosymptomatic dogs (OD) and symptomatic dogs (SD). Seven non-infected dogs (CD) were included as a control group. AD-II presented higher levels of CD8+ T splenocytes and lower TCD4+/TCD8+ ratio in comparison with CD. OD and SD showed lower percentages of CD21+ as compared with AD-II. All seropositive dogs presented lower levels of CD45RA+ than CD. Regardless of the stimuli used, the proliferation index from splenocytes in vitro was inversely correlated with clinical status. After LSA stimulation, there was a higher percentage of specific CD8+ T in AD-II than CD and non-stimulated culture. In contrast, splenocytes from SD under in vitro LSA stimulation induced decreased MHC-II+ expression in comparison with all groups, and non-stimulated culture. In conclusion, the role of CD8+ T splenocytes seems to be important for an effective immunological response, a hallmark of asymptomatic CVL, whereas the pronounced loss of MHC-II expression upon LSA stimulation is a biomarker of symptomatic CVL.  相似文献   

Immune responses of orange-spotted grouper,Epinephelus coioides,against virus-like particles of betanodavirus produced in Escherichia coli     

Yu-Xiong Lai  Bao-Lei Jin  Yu Xu  Li-jie Huang  Run-Qing Huang  Yong Zhang  Jimmy Kwang  Jian-Guo He  Jun-Feng Xie 《Veterinary immunology and immunopathology》2014,157(1-2):87-96

Betanodaviruses are the causative agents of viral nervous necrosis (VNN), a serious disease of cultured marine fish worldwide. Virus-like particles (VLPs) are one of the good novel vaccine candidates to control this disease. Until now, betanodavirus vaccine studies mainly focused on the humoral immune response and mortality after virus challenge. However, little is known about the activation of genes responsible for cellular and innate immunity by vaccines. In the present study, VLPs of orange-spotted grouper nervous necrosis virus (OGNNV) were produced in prokaryotes and their ability to enter Asian sea bass cells was the same as native virus, suggesting that they possess a similar structure to OGNNV. VLPs immunogenicity was then determined by intramuscularly vaccinating Epinephelus coioides at different concentrations (1.5 or 15 μg g^?1 fish body weight, FBW) and immunizing frequencies (administration once, twice and thrice). A single vaccination with the dosage of 1.5 μg g^?1 FBW is enough to provoke high titer antibodies (average 3 fold higher than that of negative control) with strong neutralizing antibody titer as early as 1 week post immunization. Furthermore, quantitative PCR analysis revealed that eleven genes associated with humoral, cellular and innate immunities were up-regulated in the liver, spleen and head kidney at 12 h post immunization, correlating with the early antibody response. In conclusion, we demonstrated that VLP vaccination induced humoral immune responses and activated genes associated with cellular and innate immunity against betanodavirus infection in orange-spotted grouper.  相似文献   

Evaluation of Neutrophil Function during Hemodialysis Treatment in Healthy Dogs under Anesthesia with Sevoflurane     

Shunsuke SHIMAMURA  Ken KIMURA  Masaaki KATAYAMA  Tadahisa MASHITA  Kenichi MAEDA  Saori KOBAYASHI  Reeko SATO  Jun YASUDA 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2014,76(11):1539-1543

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IL-10 Gene Polymorphisms and Their Association with Immune Traits in Four Rabbit Populations     

Xiaoying WAN  Liuliu MAO  Ting LI  Lizhi QIN  Yulai PAN  Bichun LI  Xinsheng WU 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2014,76(3):369-375

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Effects of sodium butyrate on growth performance,haematological and immunological characteristics of weanling piglets     

C. L. Fang  H. Sun  J. Wu  H. H. Niu  J. Feng 《Journal of animal physiology and animal nutrition》2014,98(4):680-685

The experiment was conducted to study the effects of sodium butyrate (SB) on growth, haematological and immunological characteristics in weanling pigs. A total of 100 male piglets (Duroc×Landrace×Yorkshire) with a body weight of 8.0 ± 0.2 kg weaned at the age of 28 days were randomly assigned to two treatments with five replicates and 10 pigs per replicate. Piglets received a basal diet (control group) or diets supplemented with 1000 mg/kg SB. The feeding trial lasted for 21 days. The results showed that dietary SB significantly decreased (p < 0.05) diarrhoea incidence of weaned piglets, but did not affect (p > 0.05) the average daily feed intake (ADFI), average daily gain (ADG) and feed to gain (F/G). Furthermore, piglets fed dietary SB had higher (p < 0.05) serum concentrations of glucose and triglycerides and lower (p < 0.05) serum concentrations of urea nitrogen, cortisol, D‐lactic acid and diamine oxidase when compared with the control group. However, dietary SB did not affect concentrations of serum albumin, total protein, insulin and glucagon (p > 0.05). There were no significant (p > 0.05) treatment effects on serum IgA and IgM, whereas serum IgG concentration and IgA+ cell count in jejunum from pigs fed SB were significantly higher (p < 0.05) than in those given the basal diet. In conclusion, the present study indicated that dietary SB significantly decreased diarrhoea incidence of weaned piglets and increased the efficiency of nitrogen utilization. Also, dietary SB could regulate and enhance the immune function of piglets by increasing the serum IgG concentration and IgA+ cell count in jejunum. Our results suggest that SB may reduce some of the adverse effects of weaning stress and play an important role in maintaining the integrity of intestinal mucosa.  相似文献   

Accidental finding of Hashimoto‐like thyroiditis in male B.U.T. 6 turkeys at slaughter     

A. Breithaupt  G. Bellof  E. Kienzle 《Journal of animal physiology and animal nutrition》2014,98(5):875-878

In the context of a study on the tolerance of rapeseed meal in B.U.T. 6 turkeys, thyroid glands were histologically and immunohistochemically examined because of potential thyreostatic effects. In all groups including the controls with no rapeseed meal in their food, there was a high incidence of lymphocytic infiltration and thyroiditis (14% of thyroids with moderate to severe lymphocytic thyroiditis). Thirty per cent of mononuclear inflammatory cells were immunohistochemically identified as T cells. There were occasional accumulations of PAX‐5 labelled cells, indicating germinal centre development. These lesions resemble Hashimoto's disease in humans. The effect on thyroid function is unknown. Mild hypothyreosis might enhance productivity but also explain dispositions towards diseases seen in context with thyroid dysfunction such as skin diseases (foot pad disease?) and cardiovascular problems. Further studies on thyroid function in these turkeys are needed.  相似文献   

Septic funiculitis caused by Streptococcus equi subspecies equi infection with associated immune‐mediated haemolytic anaemia     

C. J. Caniglia  J. L. Davis  H. C. Schott III  J. E. Brakenhoff 《Equine Veterinary Education》2014,26(5):227-233

A 2‐year‐old Quarter Horse gelding presented for anaemia, icterus, depression and intermittent colic 2 weeks after routine castration. Bilateral septic funiculitis with Streptoccocus equi ssp. equi with secondary immune‐mediated haemolytic anaemia were diagnosed. A blood transfusion was required to facilitate general anaesthesia for surgical excision of the septic funiculitis. Antibiotic therapy was provided initially with chloramphenicol and later enrofloxacin. Immunosuppressive therapy was provided with dexamethasone and later azathioprine. The horse responded well to treatment and was discharged 8 weeks after presentation. Streptococcus equi ssp. equi should be considered in cases with septic funiculitis and the potential for a secondary immune‐mediated haemolytic anaemia exists with this bacterial species.  相似文献