Liver fatty acid metabolism associations with reproductive performance of dairy cattle

ANGELI, E.; RODRIGUEZ F. M.; REY, F.; SANTIAGO, G; MATILLER V.; ORTEGA H; HEIN G.

ANIMAL REPRODUCTION SCIENCE

ELSEVIER SCIENCE BV

Lugar: Amsterdam; Año: 2019

0378-4320

The peri-calving period is characterized by a negative energy balance, which leads to lipidmobilization. Thus, during this period, the liver has important functions related to optimizingmilk yield, preventing metabolic and infectious diseases, and improving fertility. To clarify therelationship between liver fatty acid metabolism and reproductive performance, the presentstudy was conducted to assess the abundance of specific hepatic proteins related to lipid metabolismin both plasma and follicular fluid in dairy cattle with different days to conception (DC).Sixteen animals were grouped according to DC, as more and fewer DC (MDC and FDC, respectively).Blood and liver biopsies were sampled 14 days before the expected calving date and 4, 14and 28 days after calving. The plasma beta-hydroxybutyric acid (BHBA) concentrations and theliver triacylglycerol (TAG) content were greater in the MDC group (P < 0.05), whereas theprotein abundance of carnitine palmitoyl transferase 1 was greater in the FDC group (P