Methods and approaches to estimate B vitamin status in dairy cows: Knowledge, gaps and advances.
Methods
; 186: 52-58, 2021 02.
Article
en En
| MEDLINE
| ID: mdl-32485230
Clinical symptoms of B vitamin deficiency are rarely observed in ruminants because these vitamins are synthesized by the rumen microbiota. However, over the last decades, numerous reports of beneficial effects on production and metabolic efficiency of dairy cows have been published supporting that, under some conditions, B vitamin subclinical deficiency is present in these animals. Due to their roles as coenzymes or cofactors in major metabolic pathways, an adequate supply in B vitamins is critical to optimize metabolic efficiency. Nowadays, taking into account the growing interest for the Smart Farming concept, fulfilling ruminant requirements for B vitamins according to their physiological stage under different feeding management cannot be neglected. In dairy cows, B vitamin supply is greatly dependent of the activity of the ruminal microbiota. Indeed, the amount of vitamins reaching the small intestine is dependent of the utilization of the vitamins provided by the diet and their synthesis by the microorganisms present in the rumen. The two major challenges faced to determine B vitamin status of ruminants are the difficulty to estimate B vitamin supply due to the lack of knowledge on factors driving the fate of B vitamins in the digestive tract, especially in the rumen, and the choice and thresholds of biomarkers reflecting adequately the animal status. The present paper aims to present the actual state of knowledge on the methodological approaches used to estimate B vitamin supply and status of ruminant and to point out future research orientations.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Complejo Vitamínico B
/
Lactancia
/
Evaluación Nutricional
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Industria Lechera
/
Microbioma Gastrointestinal
Tipo de estudio:
Prognostic_studies
Límite:
Animals
Idioma:
En
Revista:
Methods
Asunto de la revista:
BIOQUIMICA
Año:
2021
Tipo del documento:
Article
Pais de publicación:
Estados Unidos