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Comparison of systemic and intramammary dry cow treatments / Comparación de terapias sistémicas e intramamarias para el periodo seco en vacas lecheras
Contreras B., G. Andres; Guterbock, Walter M; Muñoz R., Juan; Sears, Phillip M.
  • Contreras B., G. Andres; Michigan State University. College of Veterinary Medicine Department of Large Animal Clinical Sciences. Michigan. US
  • Guterbock, Walter M; denDulk Dairy. Coopersville. Michigan. US
  • Muñoz R., Juan; Michigan State University. College of Veterinary Medicine Department of Large Animal Clinical Sciences. Michigan. US
  • Sears, Phillip M; Michigan State University. College of Veterinary Medicine Department of Large Animal Clinical Sciences. Michigan. US
Rev. MVZ Córdoba ; 18(1): 3259-3264, ene.-abr. 2013. ilus, tab
Article in English | LILACS | ID: lil-675362
ABSTRACT
Objective. To compare four different dry cow treatments (DCT) and establish their effectiveness in reducing intramammary infections (IIM). Materials and methods. DCTs included systemic tylosin (12g) alone or accompanied by cefapirine intramammary infusions and or an internal teat sealant. A total number of 278 cows at the end of lactation period were randomly assigned to one of 4 dry cow treatment groups CESE Group (n=89), intramammary cephapirin and teat sealant. TYCESE Group (n=84), intramammary cephapirin, tylosin 12 g intramuscular and teat sealant. TYSE Group (n=86), 12 g intramuscular tylosin and teat sealant; TY Group (n=76) 12 g intramuscular tylosin only. Milk samples for culture were collected at dry-off and 1 and 2 weeks after calving. Somatic cell counts (SCC) were taken from Dairy Herd Improvement Association (DHI) tests at dry-off, and the first two test days after calving. Results. Bacteria cure rate for Gram-positive intramammary infections (IMI) for TYCESE group was 93.6%, CESE group 78.9%, TYSE group 88.2%, and TY group 78.1%. All four groups showed a decrease in the SCC upon the first and second test after calving. Conclusions. The use of systemic tylosin in combination with intramammary antibiotics increased DCT effectiveness improving the Gram-positive cure rate IMI. Furthermore, systemic tylosin alone plus teat sealant is as effective as cephapirin plus teat sealant when used as DCT.
RESUMEN
Objetivo. Comparar 4 tratamientos para el periodo seco (TPS) y establecer su efectividad en reducir infecciones intramamarias (IIM). Materiales y métodos. Los TPS incluían tilosina sistémica (12 g) solamente o acompañada con infusiones intramamarias de cefapirina y/o un sellante interno de pezones. Un total de 278 vacas al final de la lactancia fueron asignadas al azar a 1 de 4 grupos de tratamiento. Grupo CESE (n=89), cefapirina y sellante interno de pezones. Gupo TYCESE (n=84), cephapirina intramamaria, tilosina intramuscular y sellador interno de pezones. Grupo TYSE (n=86), tilosina intramuscular y sellante interno de pezones. Grupo TY (n=76) tilosina intramuscular solamente. Muestras de leche de cada cuarto productivo fueron tomadas al momento del secado, y 1 y 2 semanas después del parto. Los recuentos individuales de células somáticas (RCS) fueron tomados del control lechero (DHI) en sus pruebas de antes del momento de secado, y las primeras dos pruebas después del parto. Resultados. Las tasa de cura bacteriológica para IIM causadas por Gram positivos en TYCESE fue de 93.6%, para CESE 78.9%, TYSE 88.2% y TY 78.1%. Todos los grupos de tratamiento mostraron una disminución en RCS a la primera y segunda prueba despues del parto en comparación con la de secado. Conclusiones. El uso de tilosina en combinación con cefapirina incremento la efectividad del TPS, mejorando las tasas de cura de IIM por Gram positivos. Además TYSE fue tan efectivo como CESE en la reducción de IIM.
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Full text: Available Index: LILACS (Americas) Main subject: Tylosin / Mastitis Limits: Animals Language: English Journal: Rev. MVZ Córdoba Journal subject: Veterinary Medicine Year: 2013 Type: Article Affiliation country: United States Institution/Affiliation country: Michigan State University/US / denDulk Dairy/US

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Full text: Available Index: LILACS (Americas) Main subject: Tylosin / Mastitis Limits: Animals Language: English Journal: Rev. MVZ Córdoba Journal subject: Veterinary Medicine Year: 2013 Type: Article Affiliation country: United States Institution/Affiliation country: Michigan State University/US / denDulk Dairy/US