Co-occurrence of phytoestrogens, pyrrolizidine alkaloids and other plant secondary metabolites in rations of dairy cattle in Punjab, Pakistan
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Summary
This summary is machine-generated.Phytoestrogens (PEs) and pyrrolizidine alkaloids (PAs) were detected in dairy feed from Pakistan. Further research is needed to understand their impact on animal health and food safety.
Area Of Science
- Animal Nutrition
- Food Safety
- Analytical Chemistry
Background
- Dairy cattle feed, specifically total mixed rations (TMR), can contain various plant secondary metabolites.
- Phytoestrogens (PEs) and pyrrolizidine alkaloids (PAs) are bioactive compounds found in plants that may affect animal health.
Purpose Of The Study
- To quantify phytoestrogens (PEs) and pyrrolizidine alkaloids (PAs) in dairy TMR from Pakistan.
- To identify correlations between PEs and feed ingredients.
- To highlight the need for safety assessments.
Main Methods
- A validated liquid chromatography/tandem mass spectrometry (LC-MS/MS) method was employed.
- Analysis of 49 plant secondary metabolites in 30 TMR samples.
- Statistical analysis to determine correlations between metabolites and feed components.
Main Results
- Phytoestrogens (PEs) were detected at mean levels of 42,300 ± 25,400 µg/kg dry matter, with 100% occurrence of daidzein, genistein, and glycitein.
- Pyrrolizidine alkaloids (PAs) were found at mean levels of 340 ± 249 µg/kg dry matter.
- PEs showed positive correlations with corn grain, soybean meal, canola meal, and molasses.
Conclusions
- Phytoestrogens (PEs) and pyrrolizidine alkaloids (PAs) are prevalent in dairy TMR in Pakistan.
- The widespread presence necessitates further investigation into their effects on animal health and the establishment of safe dietary levels.
- Consideration of animal and food safety is crucial.
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