Animal Residue Data Sheet - Cyfluthrin
Cyfluthrin, which includes beta-cyfluthrin is registered in Australia for use on Brassica vegetables, avocado, cereals, rape seed (canola), cotton, legume vegetables, pastures, pulses (chickpea, field peas, lupins, faba beans, navy beans-dried), alfalfa (lucerne), macadamia nuts, sorghum and tomatoes. Details of the registered use patterns can be found on the approved labels of registered products containing cyfluthrin and beta-cyfluthrin as the active constituent. This Animal Residue Data Sheet provides information on the possible residues in feed commodities obtained from crops treated with cyfluthrin, to provide assistance in the formulation of animal diets that should not result in the violation of animal commodity MRLs.
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Current MRLs
The Australian MRLs for cyfluthrin in food and animal feed commodities listed in Table 1 and Table 4 of the MRL Standard [10 October 2002] are shown below. The residue definition of cyfluthrin and beta-cyfluthrin is cyfluthrin, sum of isomers.
| Code | Food | MRL, mg/kg | |
|---|---|---|---|
| Food Commodities | |||
| FI | 0326 | Avocado | 0.1 |
| VB | 0040 | Brassica
(cole or cabbage) vegetables, Head cabbages,
Flowerhead brassicas |
0.5 |
| GC | 0080 | Cereal grains | 2 |
| SO | 0691 | Cotton seed | 0.01 |
| VP | 0060 | Legume vegetables | 0.5 |
| TN | 0669 | Macadamia nuts | 0.05 |
| VD | 0070 | Pulses | 0.5 |
| SO | 0495 | Rape seed | *0.05 |
| VO | 0448 | Tomato | 0.2 |
| CM | 0654 | Wheat bran, unprocessed | 5 |
| Animal commodities | |||
| MO | 0105 | Edible offal (mammalian) | *0.01 |
| PE | 0112 | Eggs | *0.01 |
| MF | 0100 | Mammalian fats (except milk fat) | 0.5 |
| MM | 0095 | Meat [mammalian] | 0.02 |
| ML | 0106 | Milks | 0.1 |
| PO | 0111 | Poultry, Edible offal of | *0.01 |
| PM | 0110 | Poultry meat [in the fat] | *0.01 |
| Animal feed commodities | |||
| Canola forage (green) | 1 | ||
| Canola fodder (dry) | 2 | ||
| Chick-pea forage (green) | 5 | ||
| Faba bean forage (green) | 5 | ||
| Field pea forage (green) | 5 | ||
| AF | 0081 | Forage of cereal grains | 5 |
| Grass pastures (green) | 2 | ||
| Legume pastures (except vetch) (green) | 3 | ||
| AL | 0545 | Lupin, forage (green) | 2 |
| Navy bean forage (green) and fodder | 1 | ||
| AF | 0651 | Sorghum forage (green) | 0.5 |
| AS | 0081 | Straw and fodder (dry) of cereal grains | 5 |
Summary of Maximum Feeding Levels and Livestock Dietary Intakes
The Maximum Feeding Level (MFL, the feeding level at which the MRLs are based), the equivalent Daily Dietary Intake For Livestock (DDIL) and the equivalent daily intake of cyfluthrin are summarised below.
| Species | MFL, ppm in diet |
Equivalent DDIL, mg/kg bw | Equivalent
intake of cyfluthrin, mg/animal/day |
|---|---|---|---|
| Cattlea | 5 | 0.23 | 80 |
| Sheepb | 5 | 0.21 | 12.5 |
| Pigc | 5 | 0.21 | 12.5 |
| Poultryd | 6 | 0.26 | 0.36 |
| a
Based on dairy cow animal feeding study b Based on a 60 kg animal consuming 2.5 kg DM/day c Based on a 60 kg animal consuming 2.5 kg DM/day d Based on poultry feeding study |
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Detailed Information
All Feed Commodities
Feed commodities that may contain residues of cyfluthrin are listed in the table below. The theoretical maximum proportion of the diet that the commodity can comprise, when residues are present at the MRL, without the significant risk of animal commodity MRLs being violated is also given. For instance, if wheat bran, unprocessed were fed to cattle at 80 % of the diet, the diet would need to be free of residues of cyfluthrin to minimise the risk of cattle commodity MRLs being violated. It should be noted that the feeding levels assumed by the APVMA when setting animal commodity MRLs are theoretical values, and they should not be taken as recommendations of appropriate rations for livestock.
| Commodity a | Assumed Maximum proportion of diet (%)b | Feed intake (kg/animal/day)c |
MRL/
STMR (mg/kg) d |
Maximum intake of cyfluthrin from commodity (mg/animal/day)e | Theoretical maximum proportion of diet (%)f |
|---|---|---|---|---|---|
| Cattle (Based on a 500 kg animal consuming 20 kg DM/day) | |||||
| Cereal grains (excluding sorghum) | 100 | 20 | 0.05 | 1 | 100 |
| Sorghum | 100 | 20 | 0.25 | 5 | 100 |
| Cotton seed | 30 | 6 | 0.01 | 0.06 | 100 |
| Legume vegetables | 100 | 20 | 0.5 | 10 | 100 |
| Pulses | 100 | 20 | 0.5 | 10 | 100 |
| Rape seed | 30 | 6 | 0.05 | 0.3 | 100 |
| Wheat bran, unprocessed | 40 | 8 | 5 | 40 | 80 |
| Canola forage (green) | 100 | 20 | 1 | 20 | 100 |
| Canola fodder (dry) | 100 | 20 | 2 | 40 | 100 |
| Pulses forage (green) (includes chick-pea, faba bean, field pea) | 100 | 20 | 2 † | 40 | 100 |
| Forage of cereal grains | 100 | 20 | 0.29 | 5.8 | 100 |
| Grass pastures (green) | 100 | 20 | 2 | 40 | 100 |
| Legume pastures (except vetch) (green) | 100 | 20 | 0.87 | 17.4 | 100 |
| Lupin, forage (green) | 100 | 20 | 2 | 40 | 100 |
| Navy bean forage (green) and fodder | 100 | 20 | 1 | 20 | 100 |
| Sorghum forage (green) | 100 | 20 | 0.5 | 10 | 100 |
| Straw and fodder (dry) of cereal grains | 100 | 20 | 0.75 | 15 | 100 |
| Sheep (Based on a 60 kg animal consuming 2.5 kg DM/day) | |||||
| Cereal grains (excluding sorghum) | 100 | 2.5 | 0.05 | 0.125 | 100 |
| Sorghum | 100 | 2.5 | 0.25 | 0.625 | 100 |
| Cotton seed | 30 | 0.75 | 0.01 | 0.0075 | 100 |
| Legume vegetables | 100 | 2.5 | 0.5 | 1.25 | 100 |
| Pulses | 100 | 2.5 | 0.5 | 1.25 | 100 |
| Rape seed | 30 | 0.75 | *0.05 | 0.0375 | 100 |
| Canola forage (green) | 100 | 2.5 | 1 | 2.5 | 100 |
| Canola fodder (dry) | 100 | 2.5 | 2 | 5 | 100 |
| Pulses forage (green) (includes chick-pea, faba bean, field pea) | 100 | 2.5 | 2 † | 5 | 100 |
| Forage of cereal grains | 100 | 2.5 | 0.29 | 0.725 | 100 |
| Grass pastures (green) | 100 | 2.5 | 2 | 5 | 100 |
| Legume pastures (except vetch) (green) | 100 | 2.5 | 0.87 | 2.175 | 100 |
| Lupin, forage (green) | 100 | 2.5 | 2 | 5 | 100 |
| Navy bean forage (green) and fodder | 100 | 2.5 | 1 | 2.5 | 100 |
| Sorghum forage (green) | 100 | 2.5 | 0.5 | 1.25 | 100 |
| Straw and fodder (dry) of cereal grains | 100 | 2.5 | 1.9 | 4.75 | 100 |
| Pigs (Based on a 60 kg animal consuming 2.5 kg DM/day) | |||||
| Cereal grains (excluding sorghum) | 100 | 2.5 | 0.05 | 0.125 | 100 |
| Sorghum | 100 | 2.5 | 0.25 | 0.625 | 100 |
| Cotton seed | 30 | 0.75 | 0.01 | 0.0075 | 100 |
| Legume vegetables | 100 | 2.5 | 0.5 | 1.25 | 100 |
| Pulses | 100 | 2.5 | 0.5 | 1.25 | 100 |
| Rape seed | 30 | 0.75 | *0.05 | 0.0375 | 100 |
| Wheat bran, unprocessed | 40 | 1.0 | 5 | 5 | 100 |
| Poultry (Based on a 2 kg animal consuming 150 g DM/day) | |||||
| Cereal grains (excluding sorghum) | 100 | 0.15 | 0.05 | 0.0075 | 100 |
| Sorghum | 100 | 0.15 | 0.25 | 0.0375 | 100 |
| Cotton seed | 30 | 0.045 | 0.01 | 0.00045 | 100 |
| Legume vegetables | 100 | 0.15 | 0.5 | 0.075 | 100 |
| Pulses | 100 | 0.15 | 0.5 | 0.075 | 100 |
| Rape seed | 30 | 0.045 | *0.05 | 0.00225 | 100 |
| Wheat bran, unprocessed | 20 | 0.03 | 5 | 0.15 | 48 |
| a
The feed commodities that may contain residues of cyfluthrin, and
may form more than 20% of an animals diet. b The maximum % of the diet that the commodity is assumed to comprise for the purposes of setting MRLs, based on Stockfeed Information Document 1 c The equivalent amount of feed for an animal of designated weight and feed intake that is assumed for the purposes of setting MRLs d The MRL for each feed commodity (correction for dry weight basis where required) e The maximum intake of cyfluthrin when the commodity is fed at the maximum assumed level (Column 1) in the absence of other sources of cyfluthrin. f The maximum % of the diet at which the commodity could theoretically be fed without significant risk of exceeding animal commodity MRLs. It is assumed that the residue in the feed commodity is present at the MRL (or dry weight equivalent) and other dietary sources of cyfluthrin are absent. † Due to a lack of residue data for all pulse forages, the highest level found (1.4 mg/kg) was rounded up to 2 mg/kg and included in the calculation. |
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Abbreviations and Definitions
DM: Dry matter. The feed consumption for livestock and the residue levels in feed commodities are expressed on a dry matter basis.
DDIL: Daily Dietary Intake for Livestock. The level of dietary exposure for a specified chemical in a specified species that should not result in exceedance of the relevant animal commodity MRLs. Expressed in mg chemical/kg bodyweight.
MFL: Maximum Feeding Level. The level of dietary exposure for a specified chemical in a specified species that should not result in exceedance of the relevant animal commodity MRLs. Expressed in terms of ppm in the feed.
MRL: The concentration of a chemical residue, in units of mg/kg, that is legally permitted in or on a food or food commodity.
ppm in the feed: Parts per million in the feed. An alternate way of expressing the level of dietary exposure for a chemical. The level of chemical intake is calculated as though it were present uniformly in the total feed intake. The ppm in the feed is calculated using the following formula: DDIL (mg chemical/kg bw) _ body weight (kg) ¸ daily feed intake (kg).
Attachment 1: Anticipated maximum dietary exposure
The following calculations outline the theoretical diet used to calculate the maximum anticipated dietary exposure, maximum feeding level (MFL) and the daily dietary intake for livestock (DDIL) for cattle, sheep, pigs and poultry.
Cattle
| Feed group | Feed commodity | % in the diet | Feed intake, kg/animal/daya | MRL/ STMR, mg/kg | % DMb | Intake of cyfluthrin, mg/animal/dayc |
|---|---|---|---|---|---|---|
| Processed grain fraction | Wheat bran, unprocessed | 40 | 8 | 5 | 40 | |
| Fodder and Forage | Canola, pulses, grass pastures, lupins, straw and fodder | 60 | 12 | 2 | - | 24 |
| Total | 100 | 20 | 64 | |||
| aBased
on assumed feed consumption of 20 kg dry matter/day bEstimate of percentage dry matter. Applied to MRLs expressed on a fresh weight basis cBased on assumed bodyweight of 500 kg |
||||||
| Maximum anticipated dietary exposure: | 64 | mg/animal/day |
|---|---|---|
| Equivalent to: | 0.128 | mg/kg bw |
| Equivalent to: | 3.2 | ppm in the diet |
| MFL (Based on the available animal feeding data (Attachment 2): | 5 | ppm in the diet |
| Equivalent DDIL: | 0.23 | mg/kg bw |
Sheep
| Feed group | Feed commodity | % in the diet | Feed intake, kg/animal/daya | MRL, mg/kg | % DMb | Intake of cyfluthrin, mg/animal/dayc |
|---|---|---|---|---|---|---|
| Fodder and Forage | Canola, pulses, grass pastures, lupins, straw and fodder | 100 | 2.5 | 2 | - | 5 |
| Total | 100 | 5 | ||||
| aBased
on assumed feed consumption of 2.5 kg dry matter/day bEstimate of percentage dry matter. Applied to MRLs expressed on a fresh weight basis cBased on assumed bodyweight of 60 kg |
||||||
| Maximum anticipated dietary exposure: | 5 | mg/animal/day |
|---|---|---|
| Equivalent to: | 0.083 | mg/kg bw |
| Equivalent to: | 2 | ppm in the diet | MFL (Based on the available animal feeding data (Attachment 2): | 5 | ppm in the diet |
| Equivalent DDIL: | 0.208 | mg/kg bw |
Pigs
| Feed group | Feed commodity | % in the diet | Feed intake, kg/animal/daya | MRL, mg/kg | % DMb | Intake of cyfluthrin, mg/animal/dayc |
|---|---|---|---|---|---|---|
| Processed grain fraction | Wheat bran, unprocessed | 40 | 1 | 5 | 5 | |
| Pulses/ legumes | Legume vegetables, pulses | 60 | 1.5 | 0.5 | 0.75 | |
| Total | 100 | 5.75 | ||||
| aBased
on assumed feed consumption of 2.5 kg dry matter/day bEstimate of percentage dry matter. Applied to MRLs expressed on a fresh weight basis cBased on assumed bodyweight of 60 kg |
||||||
| Maximum anticipated dietary exposure: | 5.75 | mg/animal/day |
|---|---|---|
| Equivalent to: | 0.096 | mg/kg bw |
| Equivalent to: | 2.3 | ppm in the diet |
| MFL (Based on the available animal feeding data (Attachment 2): | 5 | ppm in the diet |
| Equivalent DDIL: | 0.208 | mg/kg bw |
Poultry
| Feed group | Feed commodity | % in the diet | Feed intake, kg/animal/daya | MRL, mg/kg | % DMb | Intake of cyfluthrin, mg/animal/dayc |
|---|---|---|---|---|---|---|
| Processed grain fraction | Wheat bran, unprocessed | 20 | 0.03 | 5 | 0.15 | |
| Pulses/ legumes | Legume vegetables, pulses | 80 | 0.12 | 0.5 | 0.06 | |
| Total | 100 | 0.15 | 0.21 | |||
| aBased
on assumed feed consumption of 0.150 kg dry matter/day bEstimate of percentage dry matter. Applied to MRLs expressed on a fresh weight basis cBased on assumed bodyweight of 2 kg |
||||||
| Maximum anticipated dietary exposure: | 0.21 | mg/animal/day |
|---|---|---|
| Equivalent to: | 0.105 | mg/kg bw |
| Equivalent to: | 1.4 | ppm in the diet | MFL (Based on the available animal feeding data (Attachment 2): | 6 | ppm in the diet |
| Equivalent DDIL: | 0.26 | mg/kg bw |
* at or about the limit of quantitation
See the cyfluthrin anticipated maximum dietary exposure (PDF, 15kb)