防疫耳标主要质量指标的检测     

张晶声  林安民  周河 《中国兽药杂志》2007,41(5):46-48

本着遵照标准,结合实际的原则,阐述了动物用防疫耳标强度指标和字迹附着力指标等主要质量指标的检测方法,并通过大量试验证实其具有简单、科学、有效等特点,在实际检测过程中具有一定的推广应用价值。  相似文献   

Motility and Plasma Membrane Integrity of Spermatozoa in Fractionated Stallion Ejaculates after Storage     

AM Kareskoski  T Reilas  M Andersson  T Katila 《Reproduction in domestic animals》2006,41(1):33-38

With the aim of investigating properties of stallion seminal plasma to eventually improve semen-handling techniques, sperm motility and plasma membrane integrity were analysed in different fractions of the ejaculates after storage. Semen was collected using a computer-controlled automated phantom that separates the ejaculates into five successive cups. Samples containing seminal plasma and skim milk extender were compared with samples stored in skim milk extender after the removal of seminal plasma by centrifugation. Fractionated ejaculates were stored cooled for 24 h after dilution with extender (Expt 1) or frozen in liquid nitrogen (Expt 2). In Expt 1, cup 1 was pre-sperm fluid, cups 2 and 3 sperm-rich fractions, and cup 4 sperm-poor fractions. In Expt 2, cups 1 and 2 were sperm-rich fractions, and cups 3 and 4 sperm-poor fractions. One sample (WE) represented the whole ejaculate in both experiments. Motility parameters were determined with a Hamilton-Thorn Motility Analyzer, and plasma membrane integrity was assessed using carboxyfluorescein diacetate and propidium iodide staining and fluorescence microscopy. The removal of seminal plasma lowered motility values, but not plasma membrane integrity, in both experiments. No significant differences between cups were observed after cooled storage. The cups differed significantly in most post-thaw motility parameters, and the sperm-rich fraction showed higher post-thaw motility than the whole ejaculate.  相似文献   

Book Review     

AM Marchevsky 《Australian veterinary journal》2006,84(3):86-86

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Bent-limb syndrome in lambs raised in total confinement.     

M Hidiroglou  T W Dukes  S K Ho  D P Heaney 《Journal of the American Veterinary Medical Association》1978,173(12):1571-1574

A bent-limb syndrome in lambs raised in total confinement was characterized by curvature of the forelimbs. Radiographic findings included flaring of the affected long bone and thinning of the growth plate. The main histologic change was endochondral dysplasia of the long bone. In feed samples, all trace minerals analyzed were within recommended concentrations except iron, which was much higher (400 ppm dry matter) than the normal requirement of lambs (70 ppm). All mineral concentrations in serum were normal except those of inorganic phosphorus and iron, which were higher. Results of soft tissue and bone mineral analyses were normal. Altering the ratio of calcium and phosphorus did not affect the incidence of disease, but intramuscular administration of massive doses of vitamin D3 and reducing the amount of dietary iron had a prophylactic effect. The increase in serum phosphorus was probably related to the dietary excess of iron, which probably decreased vitamin D metabolite formation in the kidney, which in turn could be prevented by massive doses of vitamin D3.  相似文献   

Campylobacter associated intestinal pathology in pigs   总被引：2，自引：0，他引：2  

AM POINTON 《Australian veterinary journal》1989,66(3):90-91

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Characterisation of benzimidazole-resistant strains of Rhynchosporium secalis     

Sheila Kendall  Derek W. Hollomon  Hideo Ishii  Steven P. Heaney 《Pest management science》1994,40(3):175-181

Abstract: Benzimidazole-resistant mutants of Rhynchosporium secalis were easily generated in the laboratory using UV mutagenesis. Three levels of resistance were identified (low, LR; moderate, MR; high, HR), but there was no negative cross-resistance with N-phenylcarbamate fungicides. In all cases pathogenicity was reduced, in some cases drastically. Benzimidazole-resistant field strains were first detected in 1990, some 15 years after this fungicide group was first used in UK barley crops. Unlike laboratory mutants, only HR phenotypes were isolated from the field, and all showed negative cross-resistance to N-phenylcarbamates. These field resistant strains were no less pathogenic than wild-type ones. Carbendazim binding to tubulin-like protein from HR phenotypes, whether generated in the laboratory or isolated from the field, was reduced.  相似文献   

Hypertrophic cardiomyopathy in a Clydesdale gelding          下载免费PDF全文

AM Cullimore  GD Lester  CJ Secombe  K Campbell 《Australian veterinary journal》2018,96(6):212-215

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Bronchoalveolar lavage fluid cytology and airway hyper‐reactivity in clinically normal horses          下载免费PDF全文

AM Cullimore  CJ Secombe  GD Lester  ID Robertson 《Australian veterinary journal》2018,96(8):291-296

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Elimination of bovine viral diarrhoea virus in New Zealand: a review of research progress and future directions     

J-H Han  AM Weir  JF Weston  C Heuer  MC Gates 《New Zealand veterinary journal》2018,66(6):273-280

The major impacts of bovine viral diarrhoea (BVD) on cattle health and production have prompted many countries to embark on national elimination programmes. These programmes typically involve identifying and removing persistently infected (PI) cattle in infected herds and implementing biosecurity measures, such as pre- or post-movement testing. In order to design a systematic national control programme to eliminate BVD in New Zealand, which achieves the greatest benefits to the industries at the lowest cost to individual farmers, an accurate understanding is necessary of the epidemiology, economics and social motivation for BVD control in New Zealand. In this article we briefly review the pathogenesis of BVD, transmission and diagnosis of BVD virus infection, and effectiveness of vaccination. We summarise the current state of knowledge of the prevalence, risk factors for transmission, and financial impacts of BVD in New Zealand. We describe control programmes in Europe and then discuss the challenges that must be addressed to design a cost-effective national control programme to eliminate BVD in New Zealand.  相似文献   

Raw beef bones as chewing items to reduce dental calculus in Beagle dogs          下载免费PDF全文

FR Marx  GS Machado  JG Pezzali  CS Marcolla  AM Kessler  Ø Ahlstrøm  L Trevizan 《Australian veterinary journal》2016,94(1-2):18-23

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