INFECTION WITH PASTEURELLA SPP. IN A NEW ZEALAND RABBIT COLONY

ABSTRACT The purpose of the research was to establish the etiology and to fight against the acute respiratory syndrome to New Zealand rabbits, of all ages to which the morbidity and mortality were high, from a farm with intensive breeding. Clinical 760 rabbits were examined, adults, young and new born raised in wire net cages in a closed stable, without draught. The necropsy examination was performed in laboratory on 57 dead rabbits with acute respiratory and also cultivations from trachea, lung, liver and spinal marrow were carried out. We used the bacterioscopic technique, cultivation on usual and selective media for Pasteurella, Mycoplasma and Streptococcus for isolation and identification of the micro-organisms present in the respiratory tract. Out of the 57 examined samples, 28 ones were positive and identified as Pasteurella spp., of which 21 were isolated from trachea, lung and liver and 7 from spinal marrow. Seventeen samples of the 28 examined ones contained both Pasteurella spp. and Mycoplasma spp. and 11 samples Pasteurella spp. and Streptococcus spp. also isolated and identified in trachea and lung. The antibiogram test used bio-discs with penicillin, amoxicillin, gentamicin, spectinomicin, oxytetracycline, erythromycin, enrofloxacin and cefaclor. The rabbits were divided into two groups: the first group was treated with enrofloxacin for 5 days, and the second group was treated with oxytetracycline for 5 days, both administered in drinking water. One day after the beginning of the treatment the rabbits got better and the mortality stopped after the fourth day of treatment

Pluripolarity of Graphs of Denjoy Quasianalytic Functions of Several Variables

In this paper we prove pluripolarity of graphs of Denjoy quasianalytic functions of several variables on the spanning se

Specialized Information Centers; Manual of Business Library Practice (Book Review)

published or submitted for publicatio

A comparison of tourist evaluation of beaches in Malta, Romania and Turkey

The characteristics, perceptions, attitudes and behaviour of beach users at three locations: St George's Bay, Malta, Mamaia, Romania and Olu Deniz, Turkey, were determined from questionnaire surveys. Respondents comprised locals, domestic and foreign tourists. Results for these parameters had substantial agreement both across the three beaches and with previous studies. The amounts beach users were willing to pay (WTP), via the contingent valuation method and their consumer surpluses (CS), via the travel cost method were determined. The average amount beach users were willing to pay per visit, was £0.64 on St George's bay, £0.32 on Mamaia and £0.94 on Olu Deniz. The willingness to pay varied with social class, earnings, amount of beach use and between local, domestic and foreign user groups. The consumer surplus also varied for these groups as British tourists had a CS of £0.62 per visit, with domestic Turkish and Romanian users having values of £0.46 and £0.69, respectively. Diminishing marginal utility, as measured by WTP, with beach use was found in all three surveys. Charging for actual use would be acceptable for the majority of beach users. Coastal zone managers could realise significant revenues from beach users if they charge adults on a per visit basis (the favoured mode of payment) and spend the revenue on the maintenance and improvements identified by the users. Only one of the beaches (Olu Deniz, Turkey) currently has restricted access, which would facilitate such a payment method.peer-reviewe

Univariate Shepard-Birkhoff Interpolation

In this paper we study the univariate Shepard-Birkho operators. We give an error estimation for the aproximation with these operators and some examples and graphs

Developmental Trajectories of Alcohol Use Among Monoracial and Biracial Black Adolescents and Adults

The present study investigates developmental trajectories of alcohol use from early adolescence to adulthood by age and race/ethnicity among White, Black, Black-American Indian, Black-Hispanic, and Black-White individuals and associated sociodemograhphic correlates

Smoking Trajectories Among Monoracial and Biracial Black Adolescents and Young Adults

Cigarette smoking trajectories were assessed among monorace Blacks, Black-American Indians, Black-Asians, Black-Hispanics, and Black-Whites

Approximating Mexican highways with slime mould

Plasmodium of Physarum polycephalum is a single cell visible by unaided eye. During its foraging behavior the cell spans spatially distributed sources of nutrients with a protoplasmic network. Geometrical structure of the protoplasmic networks allows the plasmodium to optimize transport of nutrients between remote parts of its body. Assuming major Mexican cities are sources of nutrients how much structure of Physarum protoplasmic network correspond to structure of Mexican Federal highway network? To find an answer undertook a series of laboratory experiments with living Physarum polycephalum. We represent geographical locations of major cities by oat flakes, place a piece of plasmodium in Mexico city area, record the plasmodium's foraging behavior and extract topology of nutrient transport networks. Results of our experiments show that the protoplasmic network formed by Physarum is isomorphic, subject to limitations imposed, to a network of principle highways. Ideas and results of the paper may contribute towards future developments in bio-inspired road planning