Anterior chamber collapse syndrome in a koala     

VL Liddle  C Naranjo  ME Bernays 《Australian veterinary journal》2014,92(5):179-182

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Behaviour: an important diagnostic tool for Lake Malawi cichlids     

Jay R Stauffer Jr    Kenneth R McKaye  & Ad F Konings 《Fish and Fisheries》2002,3(3):213-224

Historically, the cichlid fishes of Lake Malawi, which probably represent one of the best examples of rapid radiation of vertebrates, have been diagnosed with morphological and genetic data. Many of the populations once thought to be conspecific have been hypothesized to be separate species based on behavioural data. The use of behavioural data, as expressed in mate choice based on colour patterns or bower shapes, has been successfully used to diagnose both rock‐dwelling and sand‐dwelling cichlid species. Additionally, a combination of bower shapes and courtship patterns have been used as synapomorphies to diagnose genera within the Lake Malawi cichlid flock. It is concluded that taxonomists need to include behavioural data with morphological and genetic databases to diagnose species and to determine the phylogenetic relationships within this diverse assemblage of fishes.  相似文献   

An introduction to species concepts and speciation of fishes     

Renea A Ruffing  Patrick M Kocovsky  & Jay R Stauffer Jr 《Fish and Fisheries》2002,3(3):143-145

More than 22 different species concepts have been proposed. The concepts in general reflect the philosophical outlook, particular expertise, and the groups on which the authors are working. The full‐length papers in this special issue dedicated to species concepts relative to fishes are based on presentations by the authors at the 2001 annual meeting of the American Society of Ichthyologists and Herpetologists at University Park, Pennsylvania, USA and generated much discussion on the topic of what constitutes a species.  相似文献   

Intermediate Filament Proteins Expression and Carbohydrate Moieties in Trophoblast and Decidual Cells of Mature Cat Placenta     

PE Fernández  ME Diessler  A Pachame  HH Ortega  EJ Gimeno  EL Portiansky  CG Barbeito 《Reproduction in domestic animals》2014,49(2):263-269

The aim of this study was to characterize cytoskeletal intermediate filament proteins and glycoconjugates of syncytiotrophoblast, cytotrophoblast and decidual cells of feline endotheliochorial placenta. Samples from 12 normal pregnant female cats, after 45 ± 5 days of gestation, were obtained removing the uterine horns by hysterectomy. Sections were processed for routine observation and for immunohistochemistry using anticytokeratin, antivimentin and antidesmin antibodies. In addition, lectin histochemistry was performed using a panel of several biotinylated lectins to characterize glycosides expression profile. Cytotrophoblast and syncytiotrophoblast showed immunoreactivity only with acidic and basic cytokeratins. Decidual cells were only positive to vimentin, consistent with their origin from endometrial fibroblasts. Trophoblast expressed a broad population of glycans, highly exposing terminal N‐acetyl glucosamine residues and non‐sialylated galactose and N‐acetyl galactosamine oligomers. Oligosaccharides bound by Phaseolus vulgaris erythroagglutinin were the only highly branched N‐linked residues evidenced in cats, and they were restricted to the syncytium. Unlike results reported on humans, mice and rats on lectin affinity of decidual cells, sialid acids and complex N‐linked oligosaccharides were not demonstrated in cats. Glycosylation of proteins determines many of their final properties, thus becoming essential for the embryo‐maternal dialogue during implantation and placentation. Changes in glycosylation pattern have been related to pathological pregnancies in other species. Hence, the knowledge about glycosylation profile of the normal cat placenta may lead to a better understanding of both normal and pathological reproductive events.  相似文献   

Biomechanical Properties of Skin and Wounds in Ehlers-Danlos Syndrome     

L. J. FREEMAN DVM  MS    G. A. HEGREBERG DVM  PhD    J. D. ROBINETTE DVM  MS  DiplomateACVs  J. T. KIMBRELL MS  ME 《Veterinary surgery : VS》1989,18(2):97-102

The biomechanical properties of wounded and nonwounded skin were studied in three dogs and three cats affected with type I Ehlers-Danlos syndrome. Three nonaffected dogs and one nonaffected cat served as controls. Samples of wounded skin and adjacent normal skin were harvested at days 75, 138, 141, 144, 147, and 150. Samples were subjected to uniaxial tensile strength testing. Tensile strength, energy absorbed, and site of failure were recorded. In the dogs with Ehlers-Danlos syndrome, there was an increase in tensile strength in samples containing a scar over adjacent intact skin. In nonaffected dogs, affected cats and the nonaffected cat, the nonwounded skin samples had greater tensile strength. The energy absorbed by the skin samples during testing was highly correlated with tensile strength.  相似文献   

REVERSAL OF MEDETOMIDINE SEDATION-ANALGESIA BY ATIPAMEZOLE OR YOHIMBINE IN DOGS.     

J.-L. Stauffer  H. Steger  G. Walter  C. Gaillard  U. Schatzmann 《Veterinary anaesthesia and analgesia》1991,18(Z1):75-77

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Immunization of mice against Fusobacterium necrophorum infection by perenteral or oral administration of vaccine   总被引：1，自引：0，他引：1  

P M Abe  J W Holland  L R Stauffer 《American journal of veterinary research》1978,39(1):115-118

Immunization of mice against Fusobacterium necrophorum infection was attempted by using 3 vaccination procedures: (1) intraperitoneal (IP) injection of F necrophorum cells in saline solution, (2) IP injection of cells with added aluminum hydroxide adjuvant, and (3) feeding of a powdered mouse diet containing lyophilized cells. One or 2 weekly IP injections of the bacteria cells (in saline solution) for 3, 6, or 12 weeks resulted in protection of 48.7% to 64.5% of the mice against challenge exposure. Of the 2 control groups (given saline solution only), 100% and 97.4% became infected. Weekly IP injections of bacterial cells in an aluminum hydroxide adjuvant for 3, 6, or 12 weeks resulted in protectivity of 54.1% to 77.5%. Of the control mice (given adjuvant only), 97.5% became infected. Bacterial cells fed to mice at a dose level of 1.5 mg (dry weight)/g of powdered diet for 30 days (4 or 5g of diet each day) resulted in only a delay in the mean time of death as compared with the rapid death of the control mice. The feeding dose of 0.15 mg of cells/g of diet did not delay the mean time of death.  相似文献   

Haematological and biochemical reference values for the koala (Phascolarctos cinereus)     

PM. CANFIELD  ME. O'NEILL†  EF. SMITH† 《Australian veterinary journal》1989,66(10):324-326

Haematological and biochemical reference values were established from 45 clinically healthy koalas. Statistical analysis revealed no significant differences for sex and season of sampling. Immature koalas had significantly higher alkaline phosphatase and inorganic phosphate values, and significantly lower total protein concentrations due to low globulins values. Enzyme reference values tended to be wide and could limit their usefulness in detecting disease. In the reference values for leukocytes, neutrophils and lymphocytes, the inclusion of low values which were not actually seen may interfere with the detection of reduced levels due to disease.  相似文献   

Different Doses of Porcine Luteinizing Hormone in Precocious Puberty Induction in Gilts     

RD Gama  WL Vianna  ME Pinese  A de  Campos Rosseto  A de  Sant''Anna Moretti 《Reproduction in domestic animals》2005,40(5):433-435

The use of hormonal protocols in puberty induction and synchronization of oestrus has lead to an increase in the efficiency of replacement gilts. The aim of this study was to evaluate different doses of porcine LH in precocious puberty induction and oestrus synchronization in a homogeneous group of gilts. Sixty-seven homogeneous prepubertal gilts (Camborough 22) at 137 +/- 4 days of age and 87 +/- 7 kg were treated with three different hormonal protocols: T1--600 UI of equine chorionic gonadotrophin (eCG; Novormon) and after a 72-h period 5 mg of LH (Lutropin); T2--600 UI of eCG and a 72-h period 2.5 mg of LH; T3--600 UI of eCG and a 72-h period 1.25 mg of LH. The ovaries were examined at slaughter, on day 6 after the hormonal treatment. There were no statistical differences (p > 0.05) between the different LH doses in the percentage of the detected oestrus (T1 = 42.85%; T2 = 60.87%, T3 = 52.18%), oestrus duration (T1 = 41.44 +/- 16.30 h; T2 = 48.57 +/- 16.29 h, T3 = 39.33 +/- 11.42 h), number of corpora lutea (T1 = 9.61 +/- 5.43; T2 = 9.86 +/- 3.32, T3 = 8.13 +/- 5.52) and percentage of animals presenting ovarian cystic degeneration (T1 = 33.33%; T2 = 39.13%, T3 = 39.13%). The T2 (2.5 mg of LH) presented the lowest dispersion (p < 0.05) of the LH-ovulation interval (T1 = 37.17 +/- 4.07 h; T2 = 38.26 +/- 2.84 h; T3 = 36.25 +/- 5.69 h). The LH dose reduction to 2.50 and 1.25 mg presented equal results with the recommended dose of 5.0 mg, and could be used in the precocious induction of oestrus in gilts. The 2.5-mg LH dose showed the lowest dispersion of ovulation and it can be used in fixed-time artificial insemination programmes.  相似文献   

Genetic evidence for natural hybridization between the Dutch elm disease pathogens Ophiostoma novo-ulmi ssp. novo-ulmi and O. novo-ulmi ssp. americana     

H. Konrad †  T. Kirisits  M. Riegler  E. Halmschlager  C. Stauffer 《Plant pathology》2002,51(1):78-84

The Dutch elm disease pathogen Ophiostoma novo-ulmi is separated into subspecies novo-ulmi , formerly known as the Eurasian (EAN) race, and subspecies americana , formerly known as the North American (NAN) race. Both subspecies occur in Europe, and hybrids between them are suspected to have emerged in parts of Europe where their ranges overlap. Authenticated isolates of both subspecies were examined in order to determine whether fixed mutations occur in the cerato-ulmin ( cu ) and in the colony type gene ( col1 ). One and six mutations were detected between subspp. novo-ulmi and americana in cu and col1 , respectively. The mutation in cu and one mutation in col1 proved to be located within restriction sites, and were used for PCR-RFLP. This method provides a quick and reliable diagnostic method to differentiate the two subspecies. Seven isolates of O. novo-ulmi from Austria were suspected to be hybrids between subspp. novo-ulmi and americana , and were tested by PCR-RFLP of their cu and col1 genes. Two of the suspected hybrids from Austria (isolates AT73 and AT146) had the cu PCR-RFLP profile of ssp. americana and the col1 PCR-RFLP profile of ssp. novo-ulmi . Furthermore, a ssp. novo-ulmi tester isolate from Poland (P150) showed a similar hybrid pattern. This is the first evidence revealing recombination between two genes and thus hybridization between the two subspecies of O. novo-ulmi in nature.  相似文献