Overview of herd and CAEV status in dwarf goats in South Tyrol, Italy.
The analysis of the electronic data processing proved that 323 dwarf goats older than 6 months from 165 farms were kept in 63 of the 116 communes of South Tyrol. The number of dwarf goats maintained ranged from 1 to 19 animals, the average farm size revealed to be of 2 dwarf goats/farm. 47 animals were aged between 6 months and 1 year (AG1), 97 were between 1 - 2 years of age (AG2) and 179 were aged older than 2 years (AG3). The mean age amounted to 3.8 years, the age limit being 10 years. 235 animals were female and 88 animals were male (sex ratio 2.7:1). 187 animals (57.9%) were born between November and April and 136 animals (42.1%) were born between May and October. 13 animals (4.0%) proved to possess antibodies against CAEV in a serological examination performed with ELISA. The herd seroprevalence was 6.1% (10 positive farms). The seropositivity did not vary significantly in the different age groups (AG1: 4.3%; AG2: 4.1%; AG3: 3.9%). The seroprevalence of animals born outdoors between November and April (5.9%) did not differ significantly from those born indoors between May and October (1.5%). The seroprevalence of the female animals (3.4%) did not vary significantly from that of the male goats (5.7%). The low seroprevalence ascertained in the dwarf goats in South Tyrol is due to the non-existing milk production, the marginal contact among each other as well as the sparse animal trade. This study should prompt adequate means of control to be established, so that the introduction of positive animals can be prevented. An eradication programme would be advisable, due to the low disease prevalence and its chances to be successfully implemented.
Department of Farm Animals and Herd Management, University of Veterinary Medicine, Vienna, Austria. helmuth.gufler@asbz.it
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D000818:Animals; D000914:Antibodies, Viral / Q000032:analysis; D016088:Arthritis-Encephalitis Virus, Caprine / Q000276:immunology / Q000302:isolation & purification*; D001947:Breeding; D003612:Dairying; D004797:Enzyme-Linked Immunosorbent Assay / Q000662:veterinary; D005260:Female; D015511:Goat Diseases / Q000097:blood / Q000453:epidemiology* / Q000209:etiology; D006041:Goats; D007558:Italy / Q000453:epidemiology; D016180:Lentivirus Infections / Q000453:epidemiology / Q000662:veterinary*; D008297:Male; D012621:Seasons; D016036:Seroepidemiologic Studies; D012737:Sex Factors
D000914:Antibodies, Viral