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RIA. Revista de investigaciones agropecuarias
On-line version ISSN 1669-2314
Abstract
MIRANDA, Ariel et al. Prevalencia y factores de riesgo asociados a las enfermedades de transmisión sexual en bovinos de la provincia de La Pampa, Argentina. RIA. Rev. investig. agropecu. [online]. 2020, vol.46, n.2, pp.187-194. ISSN 1669-2314.
Bovine Tricomonosis (BT) and Bovine Genital Campylobacteriosis (BGC) are sexual transmission diseases (STD) that produce early embryonic death, transitory infertility and abortion, impacting on livestock reproductive performance. The objective of the study was to estimate the global and specific prevalence by phytogeography area (Z1: East Pampeana, Z2: Central Forest, Z3. West Forest) as well as the risk factor associated to both diseases in La Pampa province, Argentina. A cross sectional study was carried out between January and December 2006 which included 4018 farmers having a stock of 684116 cows and 33969 bulls (54% and 51.5% of the provincial stock, respectively). Six hundred and twenty two (15.5%) cattle herds were detected with at least one bull positive for TB and / or CGB. Prevalence was 2.15% (Z1: 1.62%, Z2: 1.90%, Z3: 4.61%) and 2.36% (Z1: 2.08%; Z2: 2.28%; Z3: 3.51%) for BT and BGC, respectively. Risk factors associated with the presence of STD were: Passage of bulls from in-contact herds (Odds ratio OR=1,8; Confidence Intervals-IC: 1,5-2,2), no defined breeding season (OR=1,3; IC: 1,1-1,6), farmers who do not detect pregnancy by rectal examination (OR=1,2; IC: 1,0-1,5) and high cows/bulls ratio (χ. =35,1, p=<0,0001). Moreover, STD were related to abortion (OR=1.3; IC: 1.0-1.7) and low pregnancy rate (OR=1.8; IC: 1.3-2.6). This study provided information to use by control programs and erradication in a region where these diseases are considered to be endemic.
Keywords : Sexual transmisión deseases; bovine tricomonosis; bovine genital campylobacteriosis; prevalence; risk factor..