Livestock (available studies)	Animal	Dose (mg/kg bw per day)	Duration (days)	Comment/Source
	Fosetyl
	Laying hen	–	–	No metabolism study is available but based on the simple nature of the molecule and the extensive metabolism shown in the goat metabolism studies, a study investigating the metabolism of fosetyl‐Al and phosphonic acid in poultry was considered not necessary (EFSA, 2018e).
	Goat	0.51	7	Metabolism study evaluated in the framework of the peer review for the renewal of fosetyl (EFSA, 2018e).
		1.46 and 1.5	7	Metabolism study evaluated in the framework of the peer review for the renewal of fosetyl (EFSA, 2018e).
		0.42 and 0.43	7	Metabolism study evaluated in the framework of the peer review for the renewal of fosetyl (EFSA, 2018e).
	Pig	–	–	Not available and not required (metabolism in rat and ruminants is similar)
	Potassium phosphonates
	No livestock metabolism study was available for potassium phosphonates. Nevertheless, considering the results of the metabolism study performed with fosetyl on ruminants and the simple nature of phosphonic acid, no additional study is required.
	Disodium phosphonates
	Not required as disodium phosphonate is not authorised for use on commodities that might be fed to livestock.

bw: body weight.