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991.
Hyun Ju Cho Susan C. Entz G. Tom Green Lorne T. Jordan 《The Canadian veterinary journal. La revue veterinaire canadienne》2002,43(1):43-45
Four serological tests were evaluated for their ability to detect passively acquired maternal antibodies to Bovine herpesvirus 1. A blocking enzyme-linked immunosorbent assay demonstrated superior sensitivity in the detection of such antibodies in calves up to 9-11 months old, versus calves up to 7 months old for other tests. 相似文献
992.
Tom Grimes 《Australian veterinary journal》2005,83(5):257-257
993.
994.
Jo Kent Tom Bailey Christu-Das Silvanose Sean McKeown Ulrich Wernery Joerg Kinne Ruth Manvell 《Veterinary Clinics of North America: Exotic Animal Practice》2006,9(3):523-531
This case describes an outbreak of low pathogenic hemagglutinin 9 neuraminidase 2 avian influenza virus (AIV) in two white-bellied bustards (Eupodotis senegalensis), one stone curlew (Burhinus oedicnemius), and a blacksmith plover (Antibyx armatus) in a private zoologic collection in Dubai, United Arab Emirates. The four birds showed signs of respiratory disease, and all died as a result of disease or euthanasia. Attention has been paid to the diagnostic process and common differential diagnosis for upper respiratory tract disease in bustards, curlews, and plovers. To the knowledge of the authors, AIV has not been previously described in these species. 相似文献
995.
996.
Tom Best Sun anquan Karo Mikaelian T.D.Philips 《饲料与畜牧》2006,(8):43-46
霉菌毒素研究自20世纪60年代以来一直是个热门课题,世界霉菌毒素研讨会及美国霉菌毒素委员会为我们提供了丰富的资料。在中国,由于实验条件的限制,霉菌毒素研究领域比较落后,饲料业及养殖业对霉菌毒素的了解严重不足,这种认识上不足导致中国市场出现许多低效或无效产品。消费者 相似文献
997.
Dobson JM Blackwood LB McInnes EF Bostock DE Nicholls P Hoather TM Tom BD 《The Journal of small animal practice》2001,42(8):377-384
This paper presents the results of a prospective study to investigate the prognostic value of clinical staging, histological grading, immunophenotype, mitotic count and average numbers of argyrophilic nucleolar organiser region counts in dogs with multicentric lymphosarcoma treated with a standard chemotherapy protocol comprising vincristine, cyclophosphamide and prednisolone. Forty-nine dogs were treated according to the study protocol. Univariate and multivariate analysis with regression modelling was used to evaluate the prognostic importance of patient and tumour variables upon tumour response and relapse-free survival. Thirty-seven dogs (76 per cent) achieved a complete remission, seven (14 per cent) a partial remission and five (10 per cent) failed to respond to treatment. None of the variables examined had a statistically significant effect upon tumour response. Tumour immunophenotype was the only parameter found to have a significant influence on patient survival, the hazard ratio for T-cell versus B-cell immunophenotype was 3.99 with 95 per cent confidence interval from 1.399 to 11.372, P = 0.035. 相似文献
998.
999.
A meta-analysis was performed with the aim to identify factors with a relevant influence on the expression of clinical postweaning multisystemic wasting syndrome (PMWS) under experimental conditions. Data from 44 studies were included in the analysis. Several variables were studied: number of pigs in the experiment, intake of colostrum, serological status against porcine circovirus type 2 (PCV2), strain of PCV2 used for inoculation, the route and dose of inoculation, and use of potential triggering factors (such as co-infections, vaccinations, or immunomodulator products). Multiple correspondence analysis and log-linear regression methods were used to establish the relationships between the studied variables and the number of PCV2 infected pigs that developed PMWS. Based on the results of the meta-analysis, the most successful animal experiment aimed to develop PMWS should include: (1) colostrum-deprived pigs, (2) age of inoculation below 3 weeks, (3) high doses of PCV2 inoculum, (4) PCV2 strain from genotype 1, and (5) co-infection with another swine pathogen as a triggering factor. 相似文献
1000.
Bean MG Skeríkova A Bonner TH Scholz T Huffman DG 《Journal of aquatic animal health》2007,19(2):71-76
Bothriocephalus acheilognathi is an introduced tapeworm in North America often reported as a serious ecological threat to native fishes. In this paper, we report the first record of B. acheilognathi in the Big Bend region of the Rio Grande in Texas (known as the Río Bravo del Norte in Mexico). Identification of B. acheilognathi was confirmed by morphologic and genetic techniques (sequences of ITS2 and V4-18S rRNA genes). Its prevalence was 27% and its intensity ranged from 1 to 5 individuals in a January 2006 collection of 115 red shiners Cyprinella lutrensis. In addition, it was found in the Tamaulipas shiner Notropis braytoni, a Rio Grande endemic and a new host record. The occurrence of B. acheilognathi might have negative ecological impacts on endemic fishes in the Rio Grande. Several of the fishes that could serve as definitive hosts are of conservation concern. Its occurrence also might affect the success of reintroducing the Rio Grande silvery minnow Hybognathus amarus, which is federally listed as endangered, in this portion of the Rio Grande. 相似文献