Effects of supplementing pomegranate peel with fatty acid sources on oxidative stress, blood metabolites, and milk production of dairy cows fed high-concentrate diets

Determining the Effects of Pelleted Cranberry Vine Grains on the Ewe and Offspring during Pregnancy and Lactation

“…Our findings are similar to those of other studies that used multiparous dairy goats and fed high concentrations of CT in early lactation [ 37 , 74 , 75 ]. In contrast, other researchers using cows and dairy sheep have determined that supplementing with CTs resulted in increased milk fat concentrations [ 24 , 26 , 32 ]. Our study has a more comprehensive, longitudinal analysis of milk composition than the aforementioned study performed in sheep [ 32 ], which only measured sheep milk composition at day 50 post-lambing.…”

“…The decrease over time in protein concentrations that we observed was similar between both groups, so it was likely some other factor that affected this measurement. Some studies have shown that secondary polyphenolic compounds can occasionally decrease the efficacy of proteolytic enzymes, which can cause decreases in milk protein percentages [ 24 , 69 , 77 , 78 , 79 , 80 ]. Additional work needs to be performed to better understand why this is occurring.…”

“…The mechanism of action is postulated to be the CTs and other plant secondary compounds that are contained in the vine [ 23 ]. Overall, the presence of CTs can increase antioxidant capacity [ 24 , 25 ], which in turn helps reduce the risk of other diseases [ 26 , 27 ]. Additionally, plants that are high in CTs have been shown to bind to proteins and create more bioavailable molecules that are then easily used by the rumen [ 28 , 29 , 30 ].…”