Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 3 de 3
Filtrar
Más filtros










Intervalo de año de publicación
1.
Animal ; 7(7): 1143-7, 2013 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-23360824

RESUMEN

The aim of this study was to determine the effect of butaphosphan and cyanocobalamin (BTPC) supplementation on plasma metabolites and milk production in postpartum dairy cows. A total of fifty-two Holstein cows were randomly assigned to receive either: (1) 10 ml of saline (NaCl 0.9%, control group); (2) 1000 mg of butaphosphan and 0.5 mg of cyanocobalamin (BTPC1 group); and (3) 2000 mg of butaphosphan and 1.0 mg of cyanocobalamin (BTPC2 group). All cows received injections every 5 days from calving to 20 days in milk (DIM). Blood samples were collected every 15 days from calving until 75 DIM to determine serum concentration of glucose, non-esterified fatty acids (NEFA), ß-hydroxybutyrate (BHB), cholesterol, urea, calcium (Ca), phosphorus (P), magnesium (Mg), aminotransferase aspartate (AST) and γ-glutamyltransferase (GGT). The body condition score (BCS) and milk production were evaluated from calving until 90 DIM. Increasing doses of BTPC caused a linear reduction in plasma concentrations of NEFA and cholesterol. Supplementation of BTPC also reduced concentrations of BHB but it did not differ between the two treatment doses. Milk yield and milk protein had a linear increase with increasing doses of BTPC. A quadratic effect was detected for milk fat and total milk solids according to treatment dose, and BTPC1 had the lowest mean values. Concentrations of glucose, urea, P, Mg, AST, GGT, milk lactose and BCS were not affected by treatment. These results indicate that injections of BTPC during the early postpartum period can reduce NEFA and BHB concentrations and increase milk production in Holstein cows.


Asunto(s)
Bovinos/metabolismo , Micronutrientes/farmacología , Leche/efectos de los fármacos , Leche/metabolismo , Compuestos Organofosforados/farmacología , Periodo Posparto/efectos de los fármacos , Animales , Análisis Químico de la Sangre/veterinaria , Composición Corporal/efectos de los fármacos , Brasil , Suplementos Dietéticos/análisis , Relación Dosis-Respuesta a Droga , Combinación de Medicamentos , Femenino , Inyecciones Intramusculares/veterinaria , Lactancia , Micronutrientes/administración & dosificación , Leche/química , Compuestos Organofosforados/administración & dosificación , Vitamina B 12/administración & dosificación , Vitamina B 12/farmacología
2.
Dev Biol (Basel) ; 126: 241-50; discussion 327, 2006.
Artículo en Inglés | MEDLINE | ID: mdl-17058500

RESUMEN

The use during the last decade of immuno-enzymatic tests based on the detection of antibodies to the non-capsid proteins (NCPs) of foot-and-mouth disease virus (FMDV) to assess viral circulation, irrespective of vaccination, supported the incorporation into the OIE code of the 'free from FMDV with vaccination' category and opened the way to a 'vaccination to live' policy. Eradication programmes in South America include systematic vaccination accompanied by large serosurveys through NCP antibody testing to ensure the absence of residual viral activity. For correct interpretation of serosurveys, a major prerequisite is that vaccines made of semi-purified preparations of inactivated virions do not contain levels of NCPs, which upon proper presentation conditions, could induce an antibody response under the conditions for field immunization. This work describes the development of an inhibition ELISA to detect NCP polyprotein 3ABC in viral suspensions destined for vaccine production as an in-process control during vaccine manufacture. Antibody responses against NCP 3ABC in vaccinated and revaccinated cattle, induced by vaccines with different purification processes and formulations, are discussed.


Asunto(s)
Ensayo de Inmunoadsorción Enzimática/métodos , Virus de la Fiebre Aftosa/inmunología , Poliproteínas/aislamiento & purificación , Proteínas no Estructurales Virales/aislamiento & purificación , Vacunas Virales , Animales , Anticuerpos Antivirales/sangre , Bovinos , Enfermedades de los Bovinos/prevención & control , Enfermedades de los Bovinos/virología , Fiebre Aftosa/prevención & control , Virus de la Fiebre Aftosa/metabolismo , Inmunización Secundaria , Poliproteínas/metabolismo , Vacunación , Proteínas no Estructurales Virales/metabolismo
3.
Hora vet ; 10(57): 21-4, set.-out. 1990. ilus
Artículo en Portugués | LILACS | ID: lil-94649

RESUMEN

Os autores inocularam vinte bezerros, desprovidos de colostro, 24 horas após o nascimento, com uma suspensäo de Escherichia coli. Os animais foram controlados durante dez dias. Cinco dos bezerros foram mantidos como controle, sem medicaçäo. Os demais, logo após o aparecimento de alteraçöes nas fezes, foram tratados com Baytril. Obteve-se a cura da infecçäo em 100% dos animais tratados, enquanto os näo tratados morreram 3 a 5 dias após a inoculaçäo.


Asunto(s)
Animales , Infecciones por Escherichia coli , Bovinos
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA
...