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Utilice este identificador para citar o enlazar este documento: https://ria.asturias.es/RIA/handle/123456789/4701


Título: Subclinical ketosis on dairy cows in transition period in farms with contrasting butyric acid contents in silagesr
Autores: Vicente, Fernando
Rodríguez, María Luisa
Martínez Fernández, Adela
Soldado, Ana
Argamentaría, Alejandro
Peláez, Mario
Roza Delgado, Begoña, de la
Palabras Claves: Cetosis
Ganado de leche
Análisis
Ácido butírico
Ensilados
Pastos
Fecha Edición: 25-Nov-2014
Editor: Hindawi Publishing Corporation
Cita Bibliográfica: Vicente, F... [et al.]. Subclinical ketosis on dairy cows in transition period in farms with contrasting butyric acid contents in silages. The Scientific World Journal .2014 ; 11 : 1-4
Resumen: This study examines the relationship between subclinical ketosis (SCK) in dairy cows and the butyric acid content of the silage used in their feeding. Twenty commercial farms were monitored over a period of 12 months. The feed at each farm and the silages used in its ration were sampled monthly for proximal analysis and for volatile fatty acid analysis. A total of 2857 urine samples were taken from 1112 cows to examine the ketonuria from about 30 days prepartum to 100 postpartum.Wide variation was recorded in the quality of silages used in the preparation of diets. Approximately 80% of the urine samples analyzed had no detectable ketone bodies, 16% returned values indicative of slight SCK, and the remainder, 4%, showed symptoms of ketosis. Most of the cases of hyperkenuria were associated with the butyric acid content of the silage used (𝑟 2 = 0.56; 𝑃 < 0.05). As the metabolizable energy content of the feed was similar, no relationship was observed between the proportion of cows with SCK and the energy content of the feed. In our study, the probability of dairy cows suffering SCK is higher when they are eating feed made from silage with a high butyric acid content (35.2 g/kg DM intake).
URI: https://ria.asturias.es/RIA/handle/123456789/4701
Aparece en las Colecciones:Agroalimentación y Ganadería
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