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OJVRTM
Online Journal of Veterinary Research©
(Including Medical and Laboratory Research)
Established 1994
ISSN 1328-925X
Volume 29 (7): 445-455, 2025.
Chromosomal aberrations in ruminants with
tuberculosis and brucellosis.
Ghazy AA, Ghazi YA,
Mahmoud KG, Farghaly AA.
Department of Parasitology and Animal
Diseases, Animal Reproduction and
Artificial Insemination, Genetics and
Cytology, Veterinary Research Division, National Research Center, Dokki, Giza, Cairo,
Egypt.
ABSTRACT
Ghazy AA, Ghazi YA, Mahmoud
KG, Farghaly AA Chromosomal aberrations in ruminants with tuberculosis and brucellosis, Onl J Vet Res., 29
(7): 445-455, 2025. We examined 84
female buffaloes for brucellosis with repeat abortions, poor breeding and
infertility. Of these, chromosomal aberrations from 10 brucella-negative
and positive confirmed by serological examination were selected. For cows with
tuberculosis associated with repeat breeding, endometritis, stillbirths,
infertility, reduction in milk yield and mastitis, we tested 50 by single
cervical and caudal-fold tuberculin intradermal test and milk cultured for TB.
Of these, 9 tuberculin positive and negative controls cattle were selected for
chromosomal analysis (positive and negative reactors were confirmed by
bacteriological examination of corresponding milk samples. These dairy cows
proved negative to brucellosis by serology. However, chromosomal structural aberrations were found to be more frequent in
buffaloes with brucellosis (5.40 ± 0.72%) or
cattle with tuberculosis (5.55 ± 0.52%),
than in non-infected controls (2.20 ± 0.45%)
and (3.11 ± 0.60%),
respectively.
Key-Words:
Chromosomal aberrations; Brucellosis; Buffaloes; Bovine tuberculosis; Dairy
cattle.
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