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Abanico veterinario
On-line version ISSN 2448-6132Print version ISSN 2007-428X
Abstract
CUICAS-HUERTA, Rosendo et al. Effect of the disinfection treatment of used intra-vaginal devices on the concentration of progesterone on cows under dry tropical conditions. Abanico vet [online]. 2018, vol.8, n.2, pp.24-32. ISSN 2448-6132. https://doi.org/10.21929/abavet2018.82.2.
The objective of the study was to compare the effect of disinfection/cleaning of CIDR devices on serum progesterone concentrations (P4) in Suizo x Cebú cows, which received during eight days a new intra-vaginal device (CIDR; T1), used device, sterilized by autoclave (T2) or a used device, disinfected with chlorine (T3). A complete randomized design with three replicates per treatment was applied. The used CIDR devices were used previously in cows. Blood samples were collected at 0, 15, 30 min, as well as at 1, 3 and 6 h and then each 12 h until tenth day , with respect to the moment of the insertion of the CIDR. The P4 concentration was determined by radioimmunoassay. Mean concentrations of P4 were similar among treatments (T1, 1.7 ± 0.9 ng/mL; T2, 1.31 ± 0.65 ng/mL; and T3, 1.33 ± 3.19 ng/mL; P<0.05). In conclusion, the process of disinfection/cleaning of the CIDR devices did not affect the availability of progestogen; therefore the CIDR could be used for estrous synchronization.
Keywords : CIDR; Autoclave; progesterone; cows.