St. John's Wort

Hypericum perforatum

Other Names:

HPE, Spotted St. John’s Wort, Hypericum, Klamath Weed, Goat Weed, Touch-and-heal, Rosin Rose

Benefits

Antiviral
Anti-inflammatory
Antitumor
Antibacterial
Wound-healing

St. John's wort (SJW)(Hypericum perforatum) is a medicinal herb which contains hypericin, the major neuroactive component of the plant. It has been used as a herbal remedy for a number of conditions since the ancient Greeks. Specific applications studied in poultry include:

Immune enhancement and Antiviral: St. John's wort extract (HPE) has demonstrated significant therapeutic efficacy and improvement of immunologic functions for chickens infected experimentally with infectious bursal disease virus.
Wound healing: St. John's wort extract exhibited a wound-healing activity whose mechanism of action is similar to that of Centella asiatica (TECA).

Poultry Specific Studies

Type	Plant Part	Dosage	Specific use	Results	Ref
Chickens	extract	1330-667.9 mg/kg body weight	antiviral, infectious bursal disease	Had significant therapeutic efficacy and improvement immunologic functions for chickens infected experimentally with IBDV.	R Shang et al., 2012
Other	extract		wound healing	increased stimulation of fibroblast collagen production and the activation of fibroblast cells in polygonal shape, which plays a role in wound repair by closing damaged area.	N Ozturk et al., 2007
Chickens	powder	667.9 mg/kg body weight for 4 days	antiviral, infectious bursal disease	Effectively treated infectious bursal disease in 20-day-old chickens infected with the virus.	S Ruofeng et al., 2012
Other	extract		wound healing	When combined with silver sulfadiazine (SS) cream 1%, the extract of Hypericum perforatum had a synergistic effect on burn wound healing when applied topically to the area. It increased the amount of collagen and provided a meaningful anti-inflammatory effect.	A Kurt et al., 2014