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
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
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
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	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