The effect of a calcium soap and jackfruit leaf extract on blood metabolites, biomarkers of oxidative stress and follicle growth of crossbreed doelings.

Objective: This study evaluates the effect of a flushing ration containing polyunsaturated fatty acids (PUFA) and jackfruit leaf extracts (JLE) on the follicle growth, reproductive hormone profiles and oxidative stress state of doelings.

Method: Fifteen primiparous Boer x Jawarandu doelings (23.21±3.57, 10-11 months old) were divided into three groups: control (PUFA flushing ration), control+JLE (200 mg/kg DMI), and control+Ca-soap (calcium soap)+JLE (200 mg/kg DMI). The researchers measured the following parameters production performances, blood metabolites, antioxidant status, estradiol, progesterone, and follicle development.

Results: The doelings' glucose levels showed significant differences (p<0.05) during the post-flushing (PF) phase, on days 19, and day 21 after estrus. An increase in glucose level was observed following the administration of the control+Ca-soap+JLE ration. However, on day 21 after estrus, the highest glucose level was detected in the control+JLE treatment group (p<0.05). In addition, the doelings' cholesterol levels were elevated on days 19 and 21 with the administration of the control+JLE ration. These changes in glucose and cholesterol levels between phases are presumed to be associated with the increased demand for hormone synthesis and follicular development. JLE supplementation reduced malondialdehyde (MDA) levels across all phases (p<0.05), indicating lower oxidative stress. Moreover the administration of the control+JLE flushing ration resulted in the highest estradiol hormone level on day 19 after estrus compared to other treatments.This finding is consistent with the greater number of medium-sized follicles observed in doelings receiving the same treatment. Additionally,including JLE in the flushing ration also increased the doelings' progesterone hormone levels during the luteal phase.

Conclusion: Jackfruit leaf extract can mitigate oxidative stress by reducing blood MDA levels during the pre-mating phase. The combination of a polyunsaturated fatty acid flushing ration with JLE may enhance follicular development, particularly medium and large-sized follicles.