Alteraciones del metabolismo energético en bovinos lecheros según revisión bibliográfica

The present bibliographic review analyzes the alterations of energy metabolism in dairy cattle according to the bibliographic review. Metabolic disorders influence lactation, fertility performance and general health in cows, most commonly around calving and related to the transition from dry period to lactation. Although the nutrition and management of cows during the transition are constantly being improved, metabolic disorders are a major risk due to the demand placed on genetics to produce more milk. The conclusions determine that there are several disorders that affect dairy cows during the first month after calving, among which the most frequent and important are the following: acidosis, ketosis, fatty liver, displacement of curdling, hypocalcemia, downer cow syndrome , laminitis, retained placenta, metritis and mastitis; grazing cows with high body condition have an energy balance with ketosis and insulin resistance and cows with high plasma concentrations in the prepartum transition period have a higher risk of hyperglycemia; the biochemical pathways of energy metabolism of hepatic origin, which oxidize and synthesize nutrients, allow the dairy cow to meet the high energy requirements during the transition period, by increasing gluconeogenesis and beta oxidation. But when there is an imbalance between these two routes, mainly due to an excess in lipolysis or due to a lack of gluconeogenic substrates, metabolic alterations such as ketosis and fatty liver occur and a return to a positive energy balance with the consequent recovery of body condition. , is reached after the fifth week of lactation.

• Autor principal: Rodríguez Pilco, Mayda Lorena (author)
• Formato: bachelorThesis
• Publicado em: 2022
• Assuntos: Alteraciones; Metabolismo; Transición; Vacas lecheras
• Acesso em linha: http://dspace.utb.edu.ec/handle/49000/11404