Dynamics of ovarian follicular fluid in cattle

Effects of replacing soybean meal with slow-release urea on milk production of Holstein dairy cows

“…They observed that progesterone concentration was lower in the cows with large follicles and cows with small follicles had the highest progesterone concentration. Similar results were observed by Nishimoto et al (2009) and Tabatabaei et al (2011). a,b Within rows, means with a common superscript were not different with probability P =0.05 CP: crude protein; T1: 16.7% crude protein (CP) diet; T2: 16.7 % CP diet with 0.50% slow-release urea replacing plant protein; T3: 16.7 % CP diet with 0.75% slow-release urea replacing plant protein; T4: 16.7 % CP diet with 1.00% slowrelease urea replacing plant protein…”

The influence of the corpus luteum on metabolites composition of follicular fluid from different sized follicles and their relationship to serum concentrations in dairy cows

“…Leroy et al (2004) demonstrated that oocyte and granulosa cells grew and matured in a changing biochemical environment from small to large follicles. In the previous studies, FF concentration of biochemical metabolites such as glucose, cholesterol, triglycerides, total proteins, albumin and globulin has been determined in cattle Tabatabaei et al, 2011) and sheep (Nandi et al, 2007). These researchers have demonstrated that FF concentration of biochemical metabolites changes from small to large follicles because large follicles are able to filter and reserve high concentrations of biochemical metabolites from blood.…”

Biochemical composition of the fluid of ovarian cysts and pre-ovulatory follicles compared to the serum in sows

“…In this study, LDL was not ob- T. Stankiewicz: Fluid of ovarian cysts and pre-ovulatory follicles in sows served either in pre-ovulatory follicles, or in follicular cysts. The fact that the concentration of triacylglycerol in serum is higher than in follicles and cysts is likely to be caused by the fact that triacylglycerol does not enter through the blood-follicle barrier, and its presence in follicular fluid is the result of local metabolic changes (19,31). Differences in intensity of such changes, however, may cause differences in the concentration of triacylglycerol between pre-ovulatory follicles and cysts.…”