Contents
page of the issue March 2006
PET
ANIMALS
Z. Szabó, A. Beregi, P. Vajdovich,
T. Gaál: Laboratory blood test of birds. Literature
review. 1. Haematology / 131
SMALL
ANIMALS
Cs. Jakab, Á. Bánky, K.
Kincses, Gy. Balka, Z. Demeter: Histopathology and frequency of
canine skin tumours / 140
RABBIT
K. Fodor, M. Kulcsár, E.
Andrásofszky, R. Glávits, L. Zöldág, S.
Fekete: Effect of body composition, genotype, GnRH- and
hCG-treatment on the sexual maturity of rabbits / 150
POULTRY
R. Glávits, E. Ferenczi, É.
Ivanics, T. Bakonyi, T. Mató, P. Zarka, V. Palya:
Concurrent occurrence of West-Nile fever and circovirus infection in a
Hungarian goose flock. Secondary communication / 160
ZOONOSES
S. Tuboly: Role of laboratory
animals in the transmission of zoonoses / 167
W. Beck: Human pathogenic
ectoparasites and dermatophytes living on animals, causing epizoonosis
l 175
LABORATORY
DIAGNOSTICS
B. Gyetvai: Comparison of the
effectiveness of methods used for the detection of antibiotic content
of milk / 182
LETTER
TO THE EDITOR
Data to the ethiology of
“infectious” nephritis of young chickens (M. Mézes, L. Kőrösi) /
186
EVENTS
16th Congress of the
Hungarian Buiatric Society (Balatonfüred, 5-8. October 2005) (L. Visnyei) / 189
12th Reproduction Biology
Meeting (Hajdúszoboszló, 4-5. November 2005) (L. Visnyei) / 190
BOOK
REVIEW
T Kégl: When the
elephant has an ulcer on his pad (T.
Kassai) / 190
Z. Szabó – A. Beregi
– P. Vajdovich – T. Gaál:
LABORATORY
BLOOD TEST OF BIRDS. LITERATURE REVIEW. 1. HAEMATOLOGY
The aim of the review in
two parts is to present the newer knowledge on the haematological and
blood biochemical tests of birds. In the first part the authors
summarize the blood taking sites in birds, morphology and pathological
changes of red and white blood cells and platelets, and the importance
of the changes of Ht value. They describe the main methods used for the
detection of white blood cell count and present the diagnostic
importance of quantitative changes in the heterophilic, eosinophilic
and basophilic granulocytes and lymphocytes, monocytes and platelets.
Cs. Jakab – Á.
Bánky – K. Kincses – Gy. Balka – Z. Demeter:
HISTOPATHOLOGY AND
FREQUENCY OF CANINE SKIN TUMOURS
In this study, the authors
analysed canine skin tumour samples received at the Department of
Pathology and Forensic Veterinary Medicine from the Faculty of
Veterinary Science of the Szent István University, between 1st
of January 1998 and June 2005. They categorized the samples from the
aspect of breed, gender, age and anatomical region. During the
histopathological examination of these 2669 samples, the most
frequently diagnosed tumour proved to be the squamous cell carcinoma,
followed in order by the hepatoid cell adenoma, cutaneous mastocytoma,
melanoma, histiocytoma, fibrosarcoma, trichoblastoma, lipoma, fibroma,
the epidermoid cyst, sebaceous gland carcinoma and sebaceous gland
adenoma (Table). The authors compared the results of the study with the
statistical results of foreign studies.
K. Fodor – M.
Kulcsár – E. Andrásofszky – R. Glávits – L.
Zöldág – S. Fekete:
EFFECT
OF BODY COMPOSITION, GENOTYPE, GNRH- AND hCG-TREATMENT ON THE SEXUAL
MATURITY OF RABBITS
In rabbits the stimulation
of the sexual maturity, the earlier breeding date is the same kind of
economical interest than the utilization of the better nutrient
digestibility occurring in the case of a restricted feeding regime. At
the same time, we also have to consider that nowadays the hormonal
interventions are widespread in the rabbit breeding, and these methods
may modify the breeding age and the occurrence of the pregnancy as a
function of the genotype, stage of development and keeping
circumstances of the animals. In their study the authors followed the
development of the sexual maturity in rabbits of two different
genotypes (New Zealand White, early sexual maturity, n=46, and
Hungarian Giant, late sexual maturity, n=48), applying two different
feeding regimes (ad libitum and 30% restriction) and using two types of
hormonal treatments (GnRH and hCG). Considering all these factors, they
examined the development of the sexual maturity in relation to the
raising intensity, the body composition and the applied hormonal
treatments. They established that the 70% restricted feeding regime is
not suitable to raise breeding rabbits, independently from the breed
and sex. In the case of does the decreased reproductive performance is
due to the decreased fat content of the body, and in the case of bucks
the background is the stress because of the restricted feeding, and in
consequence the considerable decrease of the libido. In sexually mature
does the probability of the pregnancy is higher applying hCG treatment,
due to the increased inclination for mating than in the case of GnHR
treatment, despite of the more expressed ovulation inducing effect of
this treatment.
S. Tuboly:
ROLE
OF LABORATORY ANIMALS IN THE TRANSMISSION OF ZOONOSES
Laboratory and experimental
animals can be infected by many pathogenic agents, of which man is
susceptible.
Sometimes infection can be
symptomless in the animals (e.g. monkey B virus, Lassa-virus infection)
but most of the diseases show cyclic course, during which the agents
are spread into the environment through different excreta and man cab
be indirectly infected. On this basis, most of the diseases can be
classified as orthozoonosis, when the infectious agent get into humans’
body through oral, dermal or aerogenic ways (Hanta- Pox-, lymphocytic
choriomeningitis, Lassa, Hepatitis A virus, Chlamydiophila psittaci,
Salmonella etc.). Other agents (bunyaviruses, rickettsias) are
transmitted through vectors (cyclozoonoses), and there are diseases
where the agents get into the organism through the lesions of the skin
(e.g. Francisella tularensis).
Laboratory zoonoses
manifest usually in the same or similar clinical signs in animals and
humans (e.g. monkey pox, encephalomyocarditis, hepatitis A) but there
are such that cause different signs (e.g. chlamydiosis). Certain
microorganisms may cause different clinical forms according to
geographical region (hemorrhagic fever, endemic nephropathy, pulmonary
syndrome).
Conditions of the
prevention of zoonoses transmitted by laboratory animals are the
knowledge about the characteristics of the agents, early detection of
clinical signs and keeping the rules relating to work health and to
biosafety of laboratories.
B. Gyetvai:
COMPARISON
OF THE EFFECTIVENESS OF METHODS USED FOR THE DETECTION OF ANTIBIOTIC
CONTENT OF MILK
It is more and more
important for professionals to find out the methods, by which
laboratorial examinations can be carried out quickly, simply, easily as
well as cheaply, while the required reliability is also assured. These
goals are set in the case of detecting the presence of certain
antibacterial inhibitors (such as antibiotics). Examinations of the
parameters considered highly dangerous to human health (e.g. monitoring
plans) play a very important role in the countries, where the health
state of the society is considered important. The author presents a
method (BRT) developed for detecting antibacterial inhibitors in (row)
milk, compared to another one (Delvotest), which has been commonly used
in Hungary. According to the results, there was no significant
difference between the methods in respect of the antibiotics
(penicillin G, neomycin) used in this study. Moreover in respect of the
other four antibiotics (tetracyclin, cloxacillin, ampicillin,
streptomycin) also used in this experiment, BRT seems to be more
sensitive than Delvotest.