Show young Cockle cockleburs burs most dangerous to Por porkers liers fields infested with cockleburs cockle burs should not be used for grazing pigs in the spring when cockleburs cockle burs are r sprouting advises A L ward swine husban damn extension service A al college of texas the most dangerous time la Is just ns as the cocklebur plant pushes up through the surface of the soil the pigs like these young sprouts which contain a 0 poisonous substance which results fatally if enten eaten in sufficient suni clent ent quantities experiments have proved that 12 ounces of these sprouts contain sufficient poison to kill a BO 50 round pound shout shoat death usually results quickly somewhat like sorg sorghum poisoning of cattle when pigs fire are first affected the entire bunch should be removed to a dry jot lot for a short time where they should hid os be given ghen whole milk grease or r lard the surest preventive Is to keep pigs from fields infested with burs until the plants rench reach a height of four to six inches Inc lipa the plants at this stage lose the poisonous properties |