Paratuberculosis is a chronic gastro-intestinal disease of domestic and wild ruminants caused by Mycobacterium paratuberculosis. The disease is transmitted primarily by the fecal -oral route via contaminated feed and water. Besides losses due to emaciation and occasional death of clinically ill animals, subclinically infected animals decrease productivity and increase susceptibility to other in...

The present study was conducted on 500 cattle of different breed in Giza governorate. Their age ranged from 1-7 years of different sexes. All suspected animals were clinically examined. The recoded lesions including the complicated cases in different age and sexes were described. The infected animals were classified according to the severity of clinical status into mild and severe forms. The se...

Linkage disequilibrium (LD) is the non-random association between the loci and it could give us a preliminary insight into the genetic history of the population. In the present study LD patterns and effective population size (Ne) of three Korean cattle breeds along with Chinese, Japanese and Mongolian cattle were compared using the bovine Illumina SNP50 panel. The effective population size (Ne)...

Automatic detection of estrus in cows is important in cattle management. This paper proposes a method of estrus detection by automatically checking cattle mounting. We use a side-view video camera and apply computer vision techniques to detect mounting behavior. In particular, we extract motion information to select a potential mount-up and mount-down motion and then verify the true mounting be...

We report DNA immunisation experiments in cattle using plasmid constructs that encoded glycoprotein E2 from bovine viral diarrhoea virus (BVDV)-1 (E2.1) and BVDV-2 (E2.2). The coding sequences were optimised for efficient expression in mammalian cells. A modified leader peptide sequence from protein gD of BoHV1 was inserted upstream of the E2 coding sequences for efficient membrane export of th...

The membrane-associated enzyme L-α-glycerol-3-phosphate oxidase (GlpO) of Mycoplasma mycoides subs. mycoides (Mmm), the causal agent of contagious bovine pleuropneumonia (CBPP) has been identified as a virulence factor responsible for the release of toxic by-products such as H2O2 that mediate host cell injury. Since CBPP pathogenesis is based on host inflammatory reactions, we have determined t...

Eleven cases of human brucellosis occurred among livestock workers and a veterinarian who lived and worked in a rural area around Jeongeup City, Jeollabuk-Do, Korea from February 2003 to August 2003. Eight of the patients had taken care of Korean native cattle that were infected with bovine brucellosis and had already been slaughtered. Two of the patients had taken care of dairy cattle, and one...

Abstract Native cattle breeds represent an important cultural heritage. They are a reservoir of genetic variation useful for properly responding to agriculture needs in the light ongoing climate changes. Evolutionary processes that occur response extreme environmental conditions could also be better understood using adapted local populations. Herein, different evolutionary histories world north...