3 结果
METHODS
In March 2006, an outbreak of photosensitivity affecting 6-8-month-old Friesian heifer calves on a farm in the Rangitikei district of New Zealand was investigated. The calves were grazing wheat stubble paddocks that also had a variety of weeds, especially Phytolacca octandra (inkweed). They
Some species of the genus Brachiaria are cultivated worldwide in tropical and subtropical climate regions as the main feed for ruminants. Several studies report photosensitization by Brachiaria decumbens, Brachiaria brizantha, and Brachiaria humidicola, but the poisoning by Brachiaria ruziziensis
Johnsongrass (Sorghum halepense (L.) Pers.), broadleaf signalgrass (Brachiaria platyphylla (L.) Beauv.), and yellow foxtail (Setaria glauca L.) are common volunteer grasses in bermudagrass (Cynodon dactylon (L.) Pers.) pastures in the southeastern United States. Johnsongrass and broadleaf