Scientific Opinion on safety and efficacy of coated granulated cobaltous carbonate monohydrate as feed additive for all species
<p>Cobalt(III) is a component of cobalamin. Its essentiality as trace element results from the capacity of certain animal species to synthesise cobalamin by the gastrointestinal microbiota. Feeding cobalt(II) carbonate hydroxide (2:3) monohydrate up to the maximum authorised total coba...
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| Format: | Article |
| Language: | English |
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Wiley
2012-07-01
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| Series: | EFSA Journal |
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| Online Access: | http://www.efsa.europa.eu/en/efsajournal/doc/2782.pdf |
| _version_ | 1819135100901654528 |
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| author | EFSA Panel on Additives and Products or Substances used in Animal Feed |
| author_facet | EFSA Panel on Additives and Products or Substances used in Animal Feed |
| author_sort | EFSA Panel on Additives and Products or Substances used in Animal Feed |
| collection | DOAJ |
| description | <p>Cobalt(III) is a component of cobalamin. Its essentiality as trace element results from the capacity of certain animal species to synthesise cobalamin by the gastrointestinal microbiota. Feeding cobalt(II) carbonate hydroxide (2:3) monohydrate up to the maximum authorised total cobalt in feed is safe for the target animals. Cobalt is predominantly excreted via the faecal route. Absorbed cobalt follows aqueous excretion routes. About 43&thinsp;% of body cobalt is stored in muscle; however, kidney and liver are the edible tissues containing the highest cobalt concentrations and are most susceptible to reflect dietary cobalt concentrations. In animals with the capacity to synthesise cobalamin, cobalt is also deposited in tissues as vitamin B<sub>12</sub>. Cobalt(II) cations are genotoxic under <em>in vitro</em> and <em>in vivo</em> conditions. Cobalt(II) carbonate has carcinogen, mutagen and reproduction toxicant (CMR) properties. No data are available on the potential carcinogenicity of cobalt(II) following oral exposure. However, oral exposure may potentially entail adverse threshold-related effects in humans. The estimated population intake of cobalt most likely includes the contribution of foodstuffs from animals fed cobalt-supplemented feedingstuffs. An increase in cobalt exposure by the use of cobalt-containing feed additives is therefore not expected. Considering the population exposure to cobalt, about 4–10 times lower than the health-based guidance value, no safety concern for the consumer is expected for threshold effects of oral cobalt. Cobalt(II) carbonate is a skin and eye irritant, and a dermal and respiratory sensitiser. Its dust is a hazard to persons handling the substance. Exposure by inhalation must be avoided. The use of cobalt from any source at the authorised maximum content in feed does not provide a risk to the environment. The coated granulated cobalt(II) carbonate hydroxide (2:3) monohydrate is available for cobalamin synthesis in the rumen and therefore effective in ruminants; this conclusion is extrapolated to horses and rabbits.</p> |
| first_indexed | 2024-12-22T10:13:43Z |
| format | Article |
| id | doaj.art-44d87bdb2ae14bebb2f39d19f99cbc6f |
| institution | Directory Open Access Journal |
| issn | 1831-4732 |
| language | English |
| last_indexed | 2024-12-22T10:13:43Z |
| publishDate | 2012-07-01 |
| publisher | Wiley |
| record_format | Article |
| series | EFSA Journal |
| spelling | doaj.art-44d87bdb2ae14bebb2f39d19f99cbc6f2022-12-21T18:29:47ZengWileyEFSA Journal1831-47322012-07-0110710.2903/j.efsa.2012.2782Scientific Opinion on safety and efficacy of coated granulated cobaltous carbonate monohydrate as feed additive for all speciesEFSA Panel on Additives and Products or Substances used in Animal Feed<p>Cobalt(III) is a component of cobalamin. Its essentiality as trace element results from the capacity of certain animal species to synthesise cobalamin by the gastrointestinal microbiota. Feeding cobalt(II) carbonate hydroxide (2:3) monohydrate up to the maximum authorised total cobalt in feed is safe for the target animals. Cobalt is predominantly excreted via the faecal route. Absorbed cobalt follows aqueous excretion routes. About 43&thinsp;% of body cobalt is stored in muscle; however, kidney and liver are the edible tissues containing the highest cobalt concentrations and are most susceptible to reflect dietary cobalt concentrations. In animals with the capacity to synthesise cobalamin, cobalt is also deposited in tissues as vitamin B<sub>12</sub>. Cobalt(II) cations are genotoxic under <em>in vitro</em> and <em>in vivo</em> conditions. Cobalt(II) carbonate has carcinogen, mutagen and reproduction toxicant (CMR) properties. No data are available on the potential carcinogenicity of cobalt(II) following oral exposure. However, oral exposure may potentially entail adverse threshold-related effects in humans. The estimated population intake of cobalt most likely includes the contribution of foodstuffs from animals fed cobalt-supplemented feedingstuffs. An increase in cobalt exposure by the use of cobalt-containing feed additives is therefore not expected. Considering the population exposure to cobalt, about 4–10 times lower than the health-based guidance value, no safety concern for the consumer is expected for threshold effects of oral cobalt. Cobalt(II) carbonate is a skin and eye irritant, and a dermal and respiratory sensitiser. Its dust is a hazard to persons handling the substance. Exposure by inhalation must be avoided. The use of cobalt from any source at the authorised maximum content in feed does not provide a risk to the environment. The coated granulated cobalt(II) carbonate hydroxide (2:3) monohydrate is available for cobalamin synthesis in the rumen and therefore effective in ruminants; this conclusion is extrapolated to horses and rabbits.</p>http://www.efsa.europa.eu/en/efsajournal/doc/2782.pdfNutritional additivecompounds of trace elementscobaltous carbonate monohydratecobalt(II) carbonate hydroxide (2:3) monohydratecoated granulated preparationsafetyhealth-based guidance valueefficacy |
| spellingShingle | EFSA Panel on Additives and Products or Substances used in Animal Feed Scientific Opinion on safety and efficacy of coated granulated cobaltous carbonate monohydrate as feed additive for all species EFSA Journal Nutritional additive compounds of trace elements cobaltous carbonate monohydrate cobalt(II) carbonate hydroxide (2:3) monohydrate coated granulated preparation safety health-based guidance value efficacy |
| title | Scientific Opinion on safety and efficacy of coated granulated cobaltous carbonate monohydrate as feed additive for all species |
| title_full | Scientific Opinion on safety and efficacy of coated granulated cobaltous carbonate monohydrate as feed additive for all species |
| title_fullStr | Scientific Opinion on safety and efficacy of coated granulated cobaltous carbonate monohydrate as feed additive for all species |
| title_full_unstemmed | Scientific Opinion on safety and efficacy of coated granulated cobaltous carbonate monohydrate as feed additive for all species |
| title_short | Scientific Opinion on safety and efficacy of coated granulated cobaltous carbonate monohydrate as feed additive for all species |
| title_sort | scientific opinion on safety and efficacy of coated granulated cobaltous carbonate monohydrate as feed additive for all species |
| topic | Nutritional additive compounds of trace elements cobaltous carbonate monohydrate cobalt(II) carbonate hydroxide (2:3) monohydrate coated granulated preparation safety health-based guidance value efficacy |
| url | http://www.efsa.europa.eu/en/efsajournal/doc/2782.pdf |
| work_keys_str_mv | AT efsapanelonadditivesandproductsorsubstancesusedinanimalfeed scientificopiniononsafetyandefficacyofcoatedgranulatedcobaltouscarbonatemonohydrateasfeedadditiveforallspecies |