Residuos antibióticos en el periodo postparto tras terapias de secado en el ovino lechero
- Linage, B. 1
- Gonzalo, C. 1
- 1 Facultad de Veterinaria. Universidad de León.
- Fuente Crespo, Luis Fernando de la (coord.)
- Mariano Herrera García (coord.)
- Alfonso Abecia Martínez (coord.)
- María Jesús Alcalde Aldea (coord.)
- María Dolores Carro Travieso (coord.)
- Juan Francisco García Marín (coord.)
- Carlos Gonzalo Abascal (coord.)
- Valentín Pérez Pérez (coord.)
- Cristófol Peris Ribera (coord.)
- Luis Anel Rodríguez (coord.)
- Luis Rodríguez Ruiz (coord.)
Publisher: Consejería de Agricultura y Ganadería ; Junta de Castilla y León
ISBN: 84-934535-8-7
Year of publication: 2006
Pages: 291-293
Congress: Sociedad Española de Ovinotecnia y Caprinotecnia (SEOC). Jornadas (31. 2006. Zamora)
Type: Conference paper
Abstract
After dry therapy of 100 half-udders (50 Assaf ewes) with an antibiotic combination based on 100 mg of penethamate hydriodide, 280 mg of benethamine penicillin and 100 mg of framycetin sulphate (Mamyzin® Secado, Boehringer Ingelheim España S.A.), at dose of 1 syringe per teat, the milk antibiotic depletion was studied during the first 7 milkings postpartum by two screening tests for b-lactamic and aminoglycosides detection (Rosa® and Blue Yellow® Charm, Charm Sciences, Inc. Lawrence, Massachussets, USA). Eleven glands (11.0% of the glands) corresponding to 9 ewes (18.0% of the ewes) were involved in the postpartum antibiotic depletion. According to screening test used, between 91% (Rosa Charm: 10/11) and 100% (Blue Yellow: 6/6) of positive results, and 91.7% (Blue Yellow: 11/12) of doubtful results were within the first 3 milkings postpartum (at 6, 18 and 30 h postpartum). The percentage of positive and doubtful results was very low at 42 h, and residues were no detected over 54 h postpartum.