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Ecosistemas y recursos agropecuarios
versión On-line ISSN 2007-901Xversión impresa ISSN 2007-9028
Resumen
NARANJO-CHACON, Fernando et al. Comparison of two embryo transfer methods in the tropical milking criollo cattle. Ecosistemas y recur. agropecuarios [online]. 2016, vol.3, n.7, pp.113-120. ISSN 2007-901X.
It is unknown which is the best method for the cryopreservation of Tropical Milking Criollo cattle (TMC) embryos for transfer. The objective of this study was to compare slow curve and vitrification methods in pure and Criollo TMC; this was done in the states of Veracruz (CP) and Guerrero (OG). The treatments were randomly assigned: in CP, six embryos in TMC and four in half-caste by slow curve, as well as five in TMC and five in half-caste by vitrification. In OG, four were destined for slow curve in TMC and five in half-caste; for vitrification, six in TMC and five in half-caste. The data analysis was done using the Fisher's test. No effect was found in the cryopreservation method in the gestation percentage (p>0.05); 10 and 20 % were obtained in CP (p≤0.50), and 11 and 27% in OG (p≤0.375) for slow curve and vitrification, respectively.
Palabras llave : America; cryopreservation; slow curve; vitrification.