The Claim
In anovulatory postpartum beef cows fed to meet energy requirements, weaning from suckling is associated with increased frequency of luteinizing hormone pulses and elevated basal luteinizing hormone concentrations, without changes in pulse amplitude.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
In postpartum beef cows that are not ovulating and are fed enough energy, stopping suckling is linked to more frequent luteinizing hormone pulses and higher baseline levels of the hormone, with no change in the size of each pulse.
See the scientific wording
In anovulatory postpartum beef cows fed to meet energy requirements, weaning from suckling is associated with increased frequency of luteinizing hormone pulses and elevated basal luteinizing hormone concentrations, without changes in pulse amplitude, suggesting that suckling may modulate reproductive hormone patterns independently of pulse size.
When a calf nurses, nerves from the mother's udder send signals to the brain that slow down the release of a hormone that triggers ovulation. When the calf stops nursing, those signals stop, allowing the brain to release the hormone more often, which increases the amount of another hormone in the blood without making each burst stronger.
What the research says
1 studyWhen baby cows stop nursing, their moms’ bodies start making more frequent bursts of a hormone that helps them get ready to have another baby — but each burst stays the same size. The study shows this happens even if the mom’s stress hormone levels don’t change.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.