Journal of Nutrition & Food Sciences
Open Access
ISSN: 2155-9600
ISSN: 2155-9600
State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
Research Article
Evaluation of Malondialdehyde Concentrations and Antioxidant Status in Dairy Cows Fed Close-Up Energy Density and Rumen-Protected Lysine during the Transition Period
Author(s): Lu Ma, Fang Wang, Girma Debele Delelesse, Toddy R Callaway and Dengpan Bu*
Overproduction of free radicals during oxidation of free fatty acids and deficiency of antioxidants caused oxidative stress and metabolic disorders. Reactive oxygen species can initiate lipid peroxidation because lipids are prone to oxidation. Carnitine is a methylated form of lysine that acts as a potent antioxidant that counteracts the occurrence of oxidative stress. However, the interaction of high energy diet and rumen protected lysine in dairy cows has not been explored well. The objective of the current study was to investigate the effect of pre-calving dietary energy levels with or without bypass lysine on malondialdehyde concentrations and antioxidant status in dairy cows during the transition period. Forty 3rd lactation Holstein cows were randomly allocated to one of the four dietary treatments (HEByls=1.53 NEL plus 40 g bypass Lysine, HECK=1.53 NEL without bypass Lys, LEbyls.. View More»
DOI:
10.35248/2155-9600.25.15.63