ISSN:0165-2176    

DOI:10.1080/01652176.1992.9694316

出版商:Taylor & Francis Group    

年代:1992

数据来源: Taylor

摘要:

Five‐month‐old male goats were treated with 25 mg diethylstilbestrol &propionate (DES‐DP) by a single intramuscular injection, causing characteristic histological alterations in the peripheral glandular epithelium of the prostate, resulting in squamous metaplasia.

ISSN:0165-2176    

DOI:10.1080/01652176.1992.9694317

出版商:Taylor & Francis Group    

年代:1992

数据来源: Taylor

摘要:

The relationship between the extent of seropositivity for Aujeszky's disease virus (ADV),Actinobacillus pleuropneumoniae(App.) serotype 2 and porcine influenza (PI) viruses serotype H IN I and H3N2 in pigs on the one hand and the health status of the pigs and some farm and management conditions in the herds on the other hand was studied in 45 pig finishing herds, all members of one integration group. The health status was assessed by the extent of clinical signs, the use of veterinary drugs and the prevalence of pathological lesions in pigs at slaughter.

ISSN:0165-2176    

DOI:10.1080/01652176.1992.9694318

出版商:Taylor & Francis Group    

年代:1992

数据来源: Taylor

摘要:

The purpose of the study was twofold First, using two groups of 22 foals each, we investigated the extent to which maternal antibodies interfere with the humoral response against equine influenza. The foals were born to mares that had been vaccinated twice yearly against influenza since 1982. Foals of group I were vaccinated three times at early ages (12 16, and 32 weeks of age), and foals of group II were likewise vaccinated but at later ages (24, 28, and 44 weeks of age). After the first and second vaccinations, neither group showed an increase in antibodies that inhibit haemagglutination. Group II foals, however, had a significantly stronger antibody response against nucleoprotein after the second vaccination than the foals of group I. After the third vaccination, group II foals had a significantly stronger and longer lasting antibody response against haemagglutinin than the foals of group I. However, the antibody response to nucleoprotein was comparable in both groups.

ISSN:0165-2176    

DOI:10.1080/01652176.1992.9694319

出版商:Taylor & Francis Group    

年代:1992

数据来源: Taylor

摘要:

The effect of different iron concentrations in the milk replacer on the development of iron deficiency anaemia during a fattening period of 28 weeks was studied in three groups of 14 calves. The iron contents in the milk replacer differed during the first seven weeks: 60, 100 and 150 mg Fe/kg in groups A, B and C, respectively. In all three groups blood haemoglobin, mean corpuscular volume, plasma iron concentration and saturation decreased during the fattening period whereas the total ironbinding capacity increased At week 7, liver iron concentrations were high with a large individual variation [A: 201 (61–706), B: 99 (47–129), C: 296 (77‐ 1572) μg/g dry matter]. During the fattening period, liver iron concentrations decreased with the lowest values at week 25 [A: 54 (34–82), B: 55 (44–83), C: 57 (42–79) μg/g dry matter]. Muscle iron concentrations decreased between week 7 and 19. Except plasma iron and saturation in group C, no differences in haematological and tissue iron variables were found throughout the fattening period in spite of different iron contents in the milk replacer during the first seven weeks.

ISSN:0165-2176    

DOI:10.1080/01652176.1992.9694320

出版商:Taylor & Francis Group    

年代:1992

数据来源: Taylor

摘要:

In the present report, the extent of the reduction in Aujeszky's disease virus (ADV) dissemination achieved when pigs were intensively vaccinated with gI‐deleted vaccines under field circumstances, was examined.

ISSN:0165-2176    

DOI:10.1080/01652176.1992.9694321

出版商:Taylor & Francis Group    

年代:1992

数据来源: Taylor

摘要:

This review deals with the pathogenesis of the post‐weaning syndrome. This syndrome includes post‐weaning diarrhoea (PWD), oedema disease (OD) and endotoxin shock (ES). The role of different enteropathogenic Escherichia coli bacteria and some other predisposing factors relating to this post‐weaning syndrome (PWS) are discussed Based on intestinal pathophysiological mechanisms, some suggestions for the prevention of PWS and prospects for future research are given.

ISSN:0165-2176    

DOI:10.1080/01652176.1992.9694322

出版商:Taylor & Francis Group    

年代:1992

数据来源: Taylor

摘要:

The collection, storage, disposal and processing of slaughterhouse by‐products is an important part of veterinary care in regions with intensive animal husbandry and meat production.

ISSN:0165-2176    

DOI:10.1080/01652176.1992.9694323

出版商:Taylor & Francis Group    

年代:1992

数据来源: Taylor

摘要:

B‐lymphocyte populations and the in vitro antibody producing activity of lymphocytes were measured to evaluate the lymphocyte function of periparturiment dairy cows. Changes in Blymphocyte populations were not significantly different in cows during this period Significantly decreased numbers of plaque‐forming cells were observed in lymphocytes from cows at parturition and 3 days after parturition compared to those in lymphocytes obtained 14 days after parturition.

ISSN:0165-2176    

DOI:10.1080/01652176.1992.9694324

出版商:Taylor & Francis Group    

年代:1992

数据来源: Taylor

ISSN:0165-2176    

DOI:10.1080/01652176.1992.9694315

出版商:Taylor & Francis Group    

年代:1992

数据来源: Taylor