摘要:

Lung and stomach nematode burden was estimated in 8 juvenile and 12 adult wild boar (Sus scrofa), shot in The Royal Forestry ‘Het Loo’ between January 1988 and April 1989, in order to study whether body fat reserves or blood composition (i.e., nutritional status) is correlated with the parasite burden.

ISSN:0165-2176    

DOI:10.1080/01652176.1994.9694446

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

A double blind randomized clinical trial was performed with pigs suffering from clinical respiratory disease. The goal of the trial was to test the null hypothesis that the clinical recovery after treatment with two oxytetracycline injectables with different pharmocokinetic profiles (high peak concentration and low persistence versus low peak concentrations and long persistence) was similar. Fattening pigs (n=529) were treated intramuscularly with either product A or product B at a dose of 20 mg OTC per kg b.w. when they showed signs of acute pneumonia, i.e., coughing, tachypnoea or dyspnoea combined with a rectal temperature of 40°C or higher. When necessary, treatment was given again after 3 and/or 6 days. Both treatments resulted in a rapid fall in mean temperature and an improved clinical condition. In this trial no significant differences were found in clinical recovery between the two therapies as measured by group mean temperature, number of pigs requiring retreatment, and time to recovery. The conclusion that there was no important difference in clinical recovery between the treatment groups was made with a power of at least 90%.

ISSN:0165-2176    

DOI:10.1080/01652176.1994.9694447

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

Bilateral uveitis and multiple xanthomas (fat deposits in the skin) are described in a 3.5‐year‐old ovariohysterec‐tomized female Persian cat. The cat had been treated for 2 years with corticosteroids. Examinations included a routine blood chemistry profile, radiographic examination of the thorax and abdomen, histopathological examination of multiple skin punch biopsies, and analysis of blood lipid components by cellulose‐acetate electrophoresis and by preparative ultracentrifugation studies. Total lipid values were 23 g/l. Ultracentrifugation studies indicated strongly elevated VLDL and LDL fractions and a decreased concentration of the HDL fraction. Because of sudden blindness the cat was euthanized at the request of the owner. Autopsy revealed massive atherosclerotic changes in the large abdominal vessels, the wall of the aorta, and the coronary vessels. Although the exact pathogenesis remains uncertain, these unusual findings might be explained by a primary hyperlipoproteinaemia, complicated by long‐term use of corticosteroids.

ISSN:0165-2176    

DOI:10.1080/01652176.1994.9694448

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

Faecal samples from suckling piglets from 113 litters on 25 farms in the Netherlands were examined to study the prevalence of gastrointestinal parasites, in particularStrongyloides ransomiandIsospora suis. S. ransomiwas not found butI.suiswas demonstrated in 17 of the 25 farms and in 41 out of 77 litters of these farms (53%). No other parasites were found. On the basis of these results, a longitudinal study on the incidence and significance ofI. suiswas performed on 10 farms (5 litters/farm).I. suiswas found on 9 out of 10 farms and in 56% of the litters. Farms differed in infection levels, measured as the numbers of patent litters, and in the onset of patency. Other parasites were only found in faecal samples from the sows and from farrowing pens. These were, in order of prevalence,Balantidium coli, Ascaris suum, Eimeria spinosa, E. deblieckiandE. suis.

ISSN:0165-2176    

DOI:10.1080/01652176.1994.9694449

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

Recently, an increased resistance of Campylobacter to fluoroquinolones, a newer class of antimicrobial agents in both human and veterinary medicine, has been reported. Campylobacter isolates (617) from 150 broiler flocks were tested for their susceptibility to cephalothin (control), ampicillin, tetracycline, erythromycin, and the quinolones nalidixic acid, flumequine, enrofloxacin, and ciprofloxacin by a disc diffusion method. Almost complete cross‐resistance was found between the quinolones tested. Campylobacter isolates (181, 29%), originating from 55 flocks (37%), were quinolone resistant.

ISSN:0165-2176    

DOI:10.1080/01652176.1994.9694450

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

ISSN:0165-2176    

DOI:10.1080/01652176.1994.9694451

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

Inflammatory processes require the activation of immunocompetent cells. In mammals, neutrophil polymorpho‐nuclear leukocytes (PMN) constitute one of the essential body defences against diseases. In this article knowledge of the development and maturation of neutrophils, the control of haematopoiesis and of the factors that regulate neutrophil production is reviewed. As it has recently become apparent that neutrophils can be primed by cytokines to have enhanced functional activity, the future utilization of these growth factors in bovine immunotherapy is briefly discussed.

ISSN:0165-2176    

DOI:10.1080/01652176.1994.9694452

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

Young weaned calves are susceptible to viral and bacterial infections. In two studies 279 and 500 weaned calves were injected at random with an adjuvant, with saline or were left untreated in order to evaluate their weight gain or illness and mortality during the first 10 weeks of fattening on a fat‐stock farm. However, in contrast to studies reported in the literature, no significantly higher increase in weight gain and no significant improvement of illness and mortality were found with adjuvant treatment.

ISSN:0165-2176    

DOI:10.1080/01652176.1994.9694453

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

A study of the relationship between litter size and other reproductive traits in Dutch Kooiker dogs born between 1956 and 1990 is described. The characteristics investigated were: litter size, homozygosity of the litter, paternal and maternal homozygosity, paternal and maternal litter size, paternal and maternal age, maternal parity, the year of birth, and interactions between these factors.

ISSN:0165-2176    

DOI:10.1080/01652176.1994.9694454

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor