Metabolism and pharmacokinetics of pharmaceuticals in cats (Felix sylvestris catus) and implications for the risk assessment of feed additives and contaminants

Safety and efficacy of feed additives consisting of ginkgo tinctures obtained from the leaves of Ginkgo biloba L. for use in all animal species (FEFANA asbl)

Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of tinctures obtained from the dried leaves of Ginkgo biloba L. (ginkgo tinctures) when used as sensory additives. The tinctures are water/ethanol solutions with a dry matter content of 5.7% (tincture A) and 3.0% (tincture B). The EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) concluded that the additives under assessment are safe for the target species at the following concentrations in complete feed: (i) ginkgo tincture A at 240 mg/kg for horses and 750 mg/kg for dogs; (ii) ginkgo tincture B at 600 mg/kg for horses and 50 mg/kg for all other animal species. No safety concern would arise for the consumer from the use of ginkgo tinctures up to the maximum proposed use level in feed for the target species. The tinctures should be considered as irritants to skin and eyes, and as dermal and respiratory sensitisers. The use of ginkgo tinctures at the proposed use levels in feed for the target species is not considered to be a risk to the environment. While the available data indicate that Ginkgo preparations have a distinctive flavour profile, there is no evidence that ginkgo tinctures would impart flavour to a food or feed matrix. Therefore, the FEEDAP Panel cannot conclude on the efficacy of the additives.

Safety and efficacy of a feed additive consisting of an essential oil derived from the leaves of Cymbopogon nardus (L.) Rendle (citronella oil) for use in all animal species (FEFANA asbl)

Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of citronella oil obtained from the leaves of Cymbopogon nardus (L.) Rendle, when used as a sensory additive for all animal species. The EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) concluded that citronella oil from C. nardus is of low concern for long-living and reproductive animals at the use levels in complete feed of 3.5 mg/kg for laying hens and rabbits, 6 mg/kg for sows and dairy cows, 9.5 mg/kg for sheep/goats and horses, 2.0 mg/kg for cats and 10 mg/kg for dogs. For short-living animals (species for fattening), the additive was considered of no concern at concentrations of 18 mg/kg in chickens for fattening, 24 mg/kg in turkeys for fattening, 20 mg/kg for piglets, pigs for fattening, veal calves (milk replacer), cattle for fattening, sheep/goats for meat production, horses for meat production and rabbits for meat production, and 30 mg/kg for salmonids. The conclusions were extrapolated to physiologically related minor species. For any other species, the additive is considered of low concern at 2.0 mg/kg complete feed. The use of citronella oil in animal feed is expected to be of no concern for the consumers and for the environment. The essential oil under assessment should be considered as irritant to skin and eyes and as a dermal sensitiser. When handling the essential oil, exposure of unprotected users to methyleugenol may occur. Therefore, to reduce the risk, the exposure of the users should be minimised. Since the leaves of C. nardus and its preparations were recognised to flavour food and its function in feed would be essentially the same as that in food, no further demonstration of efficacy was considered necessary.

Safety and efficacy of a feed additive consisting of an essential oil obtained from the wood of Juniperus deppeana Steud. (cedarwood Texas oil) for use in all animal species (FEFANA asbl)

Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of an essential oil obtained from the wood of Juniperus deppeana Steud. (cedarwood Texas oil), when used as a sensory additive for all animal species. The EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) concluded that the essential oil under assessment is safe up to the maximum proposed use levels in complete feed of 15 mg/kg for veal calves (milk replacer), cattle for fattening, sheep, goats, horses, dogs, salmonids and ornamental fish. For the other species, the calculated safe concentrations in complete feed were 5 mg/kg for chickens for fattening, 8 mg/kg for laying hens, 7 mg/kg for turkeys for fattening, 10 mg/kg for piglets, 12 mg/kg for pigs for fattening, 14 mg/kg for sows and dairy cows, 8.5 mg/kg for rabbits and 4 mg/kg for cats. These conclusions were extrapolated to other physiologically related species. For any other species, the additive was considered safe at 4 mg/kg complete feed. The use of cedarwood Texas oil in water for drinking was considered safe provided that the total daily intake of the additive does not exceed the daily amount that is considered safe when consumed via feed. No concerns for consumers and the environment were identified following the use of the additive up to the maximum proposed use level in feed. The additive under assessment should be considered as irritant to skin and eyes, and as a skin and respiratory sensitiser. Since the individual components of cedarwood Texas oil are recognised to flavour food and their function in feed would be essentially the same as that in food, no further demonstration of efficacy was considered necessary.

Safety and efficacy of a feed additive consisting of a tincture derived from the leaves of Eucalyptus globulus Labill. (eucalyptus tincture) for all animal species (FEFANA asbl)

Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of a tincture from the leaves of Eucalyptus globulus Labill. (eucalyptus tincture) when used as a sensory additive for all animal species. The product is a ■■■■■ solution, with a dry matter content of ~ 1.86%, which contains on average 0.454% phenolic acids and flavonoids (of which 0.280% was gallic acid), 0.0030% 1,8-cineole and 0.00012% methyleugenol. In the absence of analytical data on the occurrence of mono- or diformylated adducts of acylphloroglucinols with terpenes in the tincture and in the absence of toxicity data, the Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) could not conclude on the use of eucalyptus tincture for long-living and reproductive animals. For short-living animals (species for fattening), the additive was considered of no concern at 4 mg/kg complete feed for chickens for fattening, 5 mg/kg for turkeys for fattening, 6 mg/kg for piglets and rabbits for meat production, 7 mg/kg for pigs for fattening, 16 mg/kg for veal calves (milk replacer), 14 mg/kg for cattle for fattening, sheep/goats and horses for fattening, and 15 mg/kg for salmonids. These levels were extrapolated to physiologically related minor species. No safety concern would arise for the consumer from the use of eucalyptus tincture up to the levels in feed considered of no concern. Eucalyptus tincture should be considered as irritant to skin and eyes, and as a dermal and respiratory sensitiser. The use of eucalyptus tincture as a flavour in animal feed was not expected to pose a risk for the environment. Since the leaves of E. globulus and their preparations were recognised to flavour food and their function in feed would be essentially the same, no demonstration of efficacy was considered necessary.

Safety and efficacy of a feed additive consisting of a tincture derived from the flowers of Syzygium aromaticum (L.) Merr. & L.M. Perry (clove tincture) for all animal species (FEFANA asbl)

Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of a tincture from the dried flower bud of Syzygium aromaticum (L.) Merr. & L.M. Perry (clove tincture) when used as a sensory additive in feed and water for drinking for all animal species. The product is a ■■■■■) solution, with a dry matter content of ~ 1.66%. The product contains on average 0.511% phenolic acids (of which 0.0344% were flavonoids), 0.039% eugenol, 0.00019% methyleugenol and 0.00008% estragole. The Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) concluded that the use of clove tincture is very unlikely to be of safety concern for the target species up to the maximum proposed use level of 50 mg clove tincture/kg complete feed for all animal species, except for horses, for which the proposed use level is 200 mg/kg complete feed. The FEEDAP Panel considers that the use in water for drinking alone or in combination with use in feed should not exceed the daily amount that is considered very unlikely to be of safety concern when consumed via feed alone. No safety concern would arise for the consumer and the environment from the use of clove tincture up to the maximum proposed use levels in feed. The additive under assessment should be considered as irritant to skin and eyes, and as a dermal and respiratory sensitiser. When handling the additive, exposure of unprotected users to methyleugenol and estragole may occur. Therefore, to reduce the risk, the exposure of the users should be minimised. Since the flower buds of S. aromaticum and their preparations were recognised to flavour food and their function in feed would be essentially the same, no demonstration of efficacy was considered necessary.

Safety and efficacy of a feed additive consisting of a tincture derived from the dried fruit of Schisandra chinensis (Turcz.) Baill. (omicha tincture) for poultry, horses, dogs and cats (FEFANA asbl)

Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of a tincture from the dried fruit of Schisandra chinensis (Turcz.) Baill. (omicha tincture), when used as a sensory additive in feed for horses, cats, dogs, and in feed and in water for drinking for poultry. The product is a water/ethanol (55:45 v/v) solution, with a dry matter content of not more than 4% (w/w) and a content of 0.01%-0.15% (w/w) for the sum of schisandrin and deoxyschisandrin. The Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) concluded that omicha tincture is safe at the following concentrations in complete feed: 16 mg/kg for turkeys for fattening, 12 mg/kg for chickens for fattening and other poultry for fattening or reared for laying/reproduction, 18 mg/kg for laying hens and other laying/reproductive birds, 56 mg/kg for dogs and 47 mg/kg for horses and cats. The additive is considered safe for consumers when used up to the highest safe level in feed for poultry species and horses. Omicha tincture should be considered as irritants to skin and eyes, and as dermal and respiratory sensitisers. The use of omicha tincture as a flavour in feed for poultry species and horses was not considered to be a risk to the environment. Since it was recognised that the fruit of S. chinensis can influence sensory properties of feedingstuffs, no further demonstration of efficacy was considered necessary for the tincture under assessment.

Safety and efficacy of a feed additive consisting of a dry extract obtained from the leaves of Ginkgo biloba L. (ginkgo extract) for horses, dogs, cats, rabbits and guinea pigs (FEFANA asbl)

Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of a feed additive obtained from the dried leaves of Ginkgo biloba L. (ginkgo extract) when used as a sensory additive in feed for horses, dogs, cats, rabbits and guinea pigs. Ginkgo extract contains ≥ 24% total flavonoids, ≥ 6% total terpene lactones and ≤ 1 mg/kg ginkgolic acids. The EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) concluded that ginkgo extract is safe for the target species at the following concentrations in complete feed: 2.8 mg/kg for horses and cats, 1.1 mg/kg for rabbits and guinea pigs, and 3.3 mg/kg for dogs. No safety concern would arise for the consumers from the use of ginkgo extract up to the highest level in feed which is considered safe for food-producing species (horses and rabbits). The additive should be considered as irritant to skin and eyes, and as a dermal and respiratory sensitiser. The use of the additive at the proposed level in feed for the target species is not considered to be a risk to the environment. While the available data indicate that Ginkgo preparations have a distinctive flavour profile, there is no evidence that the ginkgo extract would impart flavour to a food or feed matrix. Therefore, the FEEDAP Panel cannot conclude on the efficacy of the additive.

Safety and efficacy of a feed additive consisting of a tincture derived from the roots of Panax ginseng C.A.Mey. (ginseng tincture) for horses, dogs and cats (FEFANA asbl)

Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of a tincture from the roots of Panax ginseng C.A.Mey. (ginseng tincture), when used as a sensory additive in feed for horses, dogs and cats. The product is a water/ethanol (40:60 v/v) solution, with a dry matter content of no more than 6% and a content of 0.01%-0.5% (w/w) for the sum of the two triterpene saponins ginsenoside Rb1 and ginsenoside Rg1. The Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) concluded that the tincture is safe for horses, dogs and cats at the maximum proposed use level of 48.6, 228.7 and 162 mg/kg complete feed, respectively. The Panel also concluded that the additive is considered safe for consumers when used at the proposed conditions of use in feed for horses. Ginseng tincture should be considered as an irritant to skin and eyes, and as a dermal and respiratory sensitiser. The use of the ginseng tincture as a flavour in feed for horses was not expected to pose a risk for the environment. Since the roots of P. ginseng and its preparations were recognised to flavour food and their function in feed would be essentially the same, no demonstration of efficacy was considered necessary.

Modification of the terms of authorisation regarding the maximum inclusion level of a feed additive consisting of 4-hydroxy-2,5-dimethylfuran-3(2H)-one for cats and dogs (V. MANE FILS)

Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the proposed modification of the terms of the authorisation regarding the maximum inclusion level of a feed additive consisting of 4-hydroxy-2,5-dimethylfuran-3(2H)-one for cats and dogs. 4-Hydroxy-2,5-dimethylfuran-3(2H)-one is currently authorised for use as a sensory additive (functional group: flavouring compounds) for cats and dogs at a recommended maximum content of 5 mg/kg complete feed. The applicant is requesting a modification of the authorisation to increase the recommended maximum content of the additive up to 25 mg/kg complete feed for cats and dogs. Based on the toxicological data available, the FEEDAP Panel concludes that 4-hydroxy-2,5-dimethylfuran-3(2H)-one is safe for dogs at 25 mg/kg feed and for cats at 18 mg/kg feed. The additive is irritant to skin, eyes and to the respiratory tract and is a skin sensitiser. No further demonstration of efficacy is necessary.

Safety and efficacy of a feed additive consisting of an essential oil derived from fresh leaves of Melaleuca cajuputi Maton & Sm. ex R. Powell and Melaleuca leucadendra (L.) L. (cajuput oil) for use in all animal species (FEFANA asbl)

Following a request from the European Commission, the EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the safety and efficacy of cajuput oil obtained from fresh leaves of Melaleuca cajuputi Maton & Sm. ex R. Powell and Melaleuca leucadendra (L.) L., when used as a sensory additive for all animal species. The FEEDAP Panel concluded that cajuput oil is safe up to the maximum proposed use levels in complete feed of 30 mg/kg for sows and dogs, 50 mg/kg for horses and ornamental fish, 40 mg/kg for salmon and 5 mg/kg for cats. For the other species, the calculated safe concentrations were 18 mg/kg for chickens for fattening, 26 mg/kg for laying hens, 23 mg/kg for turkeys for fattening, 37 mg/kg for pigs for fattening, 31 mg/kg for piglets, 78 mg/kg for veal calves (milk replacer), 69 mg/kg for cattle for fattening and sheep/goats, 45 mg/kg for dairy cows and 28 mg/kg for rabbits. These conclusions were extrapolated to other physiologically related species. For any other species, the additive is safe at 5 mg/kg complete feed. The use of cajuput oil in water for drinking was considered safe provided that the total daily intake does not exceed the daily amount considered safe when consumed via feed. No concerns for consumers and the environment were identified following the use of the additive up to the highest safe use level in feed. The essential oil under assessment should be considered as an irritant to skin and eyes, and as a dermal and respiratory sensitiser. Since cajuput oil was recognised to flavour food and their function in feed would be essentially the same as that in food, no further demonstration of efficacy was considered necessary.

The Dangers of Acetaminophen for Neurodevelopment Outweigh Scant Evidence for Long-Term Benefits

Based on available data that include approximately 20 lines of evidence from studies in laboratory animal models, observations in humans, correlations in time, and pharmacological/toxicological considerations, it has been concluded without reasonable doubt and with no evidence to the contrary that exposure of susceptible babies and children to acetaminophen (paracetamol) induces many, if not most, cases of autism spectrum disorder (ASD). However, the relative number of cases of ASD that might be induced by acetaminophen has not yet been estimated. Here, we examine a variety of evidence, including the acetaminophen-induced reduction of social awareness in adults, the prevalence of ASD through time, and crude estimates of the relative number of ASD cases induced by acetaminophen during various periods of neurodevelopment. We conclude that the very early postpartum period poses the greatest risk for acetaminophen-induced ASD, and that nearly ubiquitous use of acetaminophen during early development could conceivably be responsible for the induction in the vast majority, perhaps 90% or more, of all cases of ASD. Despite over a decade of accumulating evidence that acetaminophen is harmful for neurodevelopment, numerous studies demonstrate that acetaminophen is frequently administered to children in excess of currently approved amounts and under conditions in which it provides no benefit. Further, studies have failed to demonstrate long-term benefits of acetaminophen for the pediatric population, leaving no valid rationale for continued use of the drug in that population given its risks to neurodevelopment.

Safety and efficacy of feed additives consisting of essential oils from the fruit and stems of Foeniculum vulgare Mill. ssp. vulgare: Bitter fennel oil for use in all animal species and sweet fennel oil for use in dogs and cats (FEFANA asbl)

Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of essential oils from fruit and stems of Foeniculum vulgare Mill. (bitter fennel oil and sweet fennel oil), when used as sensory additives (flavourings). For long-living and reproductive animals, the Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) considered of low concern the use of bitter fennel oil (with a content of estragole up to 6.1%) at the proposed use level in complete feed: 0.6 mg/kg for laying hens and rabbits, 1.0 mg/kg for sows and dairy cows, 1.5 mg/kg for sheep/goats, horses and cats, 1.9 mg/kg for dogs and 7.1 mg/kg for ornamental fish. For short-living animals (animals for fattening), the Panel had no safety concern when bitter fennel oil is used at the proposed use level in complete feed of 18.2 mg/kg for chickens for fattening, 24.3 mg/kg for turkeys for fattening and 25 mg/kg for piglets, pigs for fattening, veal calves, cattle for fattening, sheep/goats, horses, rabbits and salmon. These conclusions were extrapolated to other physiologically related species. The use of sweet fennel oil (with a content of estragole up to 5.0%) was considered of low concern at the proposed use level in complete feed of 2.3 mg/kg for dogs and 1.9 mg/kg cats. The use of bitter fennel oil in animal feed is expected to be of no concern for consumers and the environment. The additives under assessment should be considered as irritants to skin and eyes, and as dermal and respiratory sensitisers. Due to the high concentration of estragole (> 1%), fennel oils are classified as suspected of causing genetic defects and of causing cancer and should be handled accordingly. Since the fruit of F. vulgare Mill. ssp. vulgare and its preparations are recognised to flavour food, no further demonstration of efficacy was necessary.

Safety and efficacy of a feed additive consisting of an essential oil obtained from the fruit of Coriandrum sativum L. (coriander oil) (FEFANA asbl)

Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of an essential oil obtained from the fruit of Coriandrum sativum L. (coriander oil), when used as a sensory additive in feed for all animal species. The EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) concluded that the use of coriander oil is safe up to the maximum proposed use levels of 30 mg/kg complete feed for piglets, pigs for fattening, sows, veal calves (milk replacer), cattle for fattening, sheep, goats and horses, salmonids, dogs and ornamental fish. For the other species, the calculated safe concentrations in complete feed are: 14 mg/kg for chickens for fattening, 28 mg/kg for laying hens, 26 mg/kg for turkeys for fattening, 28 mg/kg for rabbits and 14 mg/kg for cats. These conclusions were extrapolated to physiologically related species. For any other species, the additive was considered safe at 14 mg/kg complete feed. The proposed conditions of use for veal calves (10 mg/kg) and ruminants, horses and dogs (5 mg/kg) were considered safe provided that the use in water for drinking alone or in combination with the use in feed should not exceed the daily amount that is considered safe when consumed via feed alone. No concerns for consumers and the environment were identified following the use of coriander oil up to the maximum proposed use level in feed. Coriander oil should be considered as irritant to skin and eyes and the respiratory tract and as a dermal and respiratory sensitiser. Since C. sativum and its preparations are recognised to flavour food and its function in feed would be essentially the same as that in food, no further demonstration of efficacy was considered necessary.

Safety and efficacy of a feed additive consisting of an essential oil from the herbaceous parts of Pelargonium graveolens L'Hér. (geranium rose oil) for all animal species (FEFANA asbl)

Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of an essential oil obtained from the herbaceous parts of Pelargonium graveolens L'Hér. (geranium rose oil), when used as a sensory additive in feed and water for drinking for all animal species. The EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) concluded that the use of geranium rose oil is safe up to the maximum proposed use levels of 5 mg/kg complete feed for all animal species. The FEEDAP Panel considered that the use in water for drinking is safe provided that the total daily intake of the additive does not exceed the daily amount that is considered safe when consumed via feed. No concerns for consumers were identified following the use of geranium rose oil up to the maximum proposed use level in feed. The additive under assessment should be considered as irritant to skin and eyes, and as a skin and respiratory sensitiser. The use of geranium rose oil at the proposed use level in feed was not expected to pose a risk to the environment. Since P. graveolens and its preparations were recognised to flavour food and its function in feed would be essentially the same as that in food, no further demonstration of efficacy was considered necessary.

Safety and efficacy of feed additives consisting of essential oils derived from the flower buds or the leaves of Syzygium aromaticum (L.) Merr. & L.M. Perry (clove bud oil and clove leaf oils) for all animal species (FEFANA asbl)

Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of essential oils from the flower buds or the leaves of Syzygium aromaticum (L.) Merr. & L.M. Perry: clove bud oil, clove leaf oil and a β-caryophyllene-rich fraction of clove leaf oil (CCL oil), when used as sensory additives in feed and water for drinking for all animal species. Clove oils contain methyleugenol (up to 0.13%). The EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) concluded that the use of clove oils was of low concern for long-living and reproductive animals and of no concern for target species for fattening at the following concentrations in complete feed: 25-50 mg/kg for clove bud oil, 28-100 mg/kg for clove leaf oil and 20 mg/kg for CCL oil. The FEEDAP Panel considered that the use in water for drinking alone or in conjunction with use in feed should not exceed the daily amount that is considered of low or no concern when consumed via feed alone. No concerns for consumers were identified following the use of clove oils up to the highest safe level in feed. The additives under assessment should be considered as irritant to skin and eyes and the respiratory tract and as skin sensitisers. When handling the essential oils, exposure of unprotected users to methyleugenol may occur. Therefore, to reduce the risk, the exposure of the users should be minimised. The use of clove oils at the proposed use level in feed was not expected to pose a risk for the environment. Since clove bud oil and clove leaf oil are recognised to flavour food and their function in feed would be essentially the same, no demonstration of efficacy was considered necessary.

Safety and efficacy of a feed additive consisting of an essential oil derived from the aerial parts of Cymbopogon flexuosus (Nees ex Steud.) Will. Watson (lemongrass oil) for use in all animal species (FEFANA asbl)

Following a request from the European Commission, the EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the safety and efficacy of lemongrass oil obtained from the aerial parts of Cymbopogon flexuosus (Nees ex Steud.) Will. Watson when used as a sensory additive for all animal species. The FEEDAP Panel concluded that lemongrass oil is safe up to the maximum proposed use levels in complete feed of 125 mg/kg for salmonids; 100 mg/kg for sows and horses; 75 mg/kg for veal calves (milk replacer), cattle for fattening, dairy cows, sheep and goats; and 50 mg/kg for dogs and ornamental fish. For the other species, the calculated safe concentrations in complete feed were 41 mg/kg for chickens for fattening, 61 mg/kg for laying hens, 55 mg/kg for turkeys for fattening, 74 mg/kg for piglets, 88 mg/kg for pigs for fattening, 65 mg/kg for rabbits and 33 mg/kg for cats. These conclusions were extrapolated to other physiologically related species. For any other species, the additive is safe at 33 mg/kg complete feed. The use of lemongrass oil in water for drinking for poultry, pigs, calves and rabbit is safe provided that the total daily intake does not exceed the daily amount considered safe when consumed via feed. No concerns for consumers and the environment were identified following the use of the additive up to the highest safe use level in feed. The essential oil under assessment should be considered as an irritant to skin and eyes and as a dermal and respiratory sensitiser. Since the aerial parts of C. flexuosus and its preparations were recognised to flavour food and its function in feed would be essentially the same as that in food, no further demonstration of efficacy was considered necessary.

Safety and efficacy of a feed additive consisting of an essential oil derived from the fruit of Illicium verum Hook.f. (star anise oil) for use in all animal species (FEFANA asbl)

Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of star anise oil from the fruit (without or with the presence of plant leaves) of Illicium verum Hook.f., when used as a sensory additive in feed and water for drinking for all animal species. For long-living and reproductive animals, the Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) considered of low concern the use of the additive in complete feed at 0.6 mg/kg for laying hens and rabbits, 1.0 mg/kg for sows and dairy cows, 1.6 mg/kg for sheep/goats, horses and cats, 1.9 mg/kg for dogs and 6.5 mg/kg for ornamental fish. For short-living animals, the Panel had no safety concern when the additive is used at 83.3 mg/kg for veal calves, 73.3 mg/kg for sheep/goats, cattle for fattening and horses for meat production, 83.8 mg/kg for salmonids, 24.8 mg/kg for turkeys for fattening, 18.5 mg/kg chickens for fattening, 33.3 mg/kg for piglets, 40 mg/kg for pigs for fattening and 29.3 mg/kg for rabbits for meat production. These conclusions were extrapolated to other physiologically related species. For any other species, the additive was considered of low concern at 0.6 mg/kg. The use of star anise oil in animal feed is expected to be of no concern for consumers and for the environment. The additive under assessment should be considered as an irritant to skin and eyes, and as a dermal and respiratory sensitiser. Due to the high concentration of estragole (≥ 1%), the additive is classified as suspected of causing genetic defects and of causing cancer and should be handled accordingly. Since the fruit of I. verum and its preparations are recognised to flavour food and their function in feed would be the same, no further demonstration of efficacy was necessary.

Safety and efficacy of a feed additive consisting of an essential oil from the seeds of Myristica fragrans Houtt. (nutmeg oil) for all animal species (FEFANA asbl)

Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of an essential oil from the seeds of Myristica fragrans Houtt. (nutmeg oil), when used as a sensory additive in feed and water for drinking for all animal species. The additive contains myristicin (up to 12%), safrole (2.30%), elemicin (0.40%) and methyleugenol (0.33%). For long-living and reproductive animals, the Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) considered of low concern the use of the additive in complete feed at 0.2 mg/kg for laying hens and rabbits, 0.3 mg/kg for sows and dairy cows, 0.5 mg/kg for sheep/goats, horses and cats, 0.6 mg/kg for dogs and 2.5 mg/kg for ornamental fish. For short-living animals, the Panel had no safety concern when the additive is used at the maximum proposed use level of 10 mg/kg for veal calves, cattle for fattening, sheep/goats, horses for meat production, and salmon and for the other species, at 3.3 mg/kg for turkeys for fattening, 2.8 mg/kg chickens for fattening, 5.0 mg/kg for piglets, 6.0 mg/kg for pigs for fattening and 4.4 mg/kg for rabbits for meat production. These conclusions were extrapolated to other physiologically related species. For any other species, the additive was considered of low concern at 0.2 mg/kg. The use of nutmeg oil in animal feed was expected to be of no concern for consumers and the environment. The additive should be considered as irritant to skin and eyes and as a skin and respiratory sensitiser. Based on the presence of safrole, nutmeg oil is classified as carcinogen (category 1B) and handled accordingly. Since nutmeg oil was recognised to flavour food and its function in feed would be the same, no further demonstration of efficacy was considered necessary.

Safety and efficacy of a feed additive consisting of an essential oil obtained from the oleoresin of Pinus pinaster Aiton (pine white oil) for use in all animal species (FEFANA asbl)

Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of an essential oil obtained from the oleoresin of Pinus pinaster Aiton (pine white oil, also known as turpentine oil), when used as a sensory additive in feed and water for drinking for all animal species. The Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) concluded that the essential oil under assessment is safe up to the maximum proposed use levels of 35 mg/kg for laying hens, piglets, pigs for fattening, sows, rabbits, salmonids, 50 mg/kg for veal calves (milk replacer), cattle for fattening, dairy cows, horses, dogs and ornamental fish, 20 mg/kg for cats. For the other species, the calculated safe concentrations in complete feed were 25 mg/kg complete feed for chickens for fattening, 33 mg/kg for turkeys for fattening and 14 mg/kg for ornamental birds. These conclusions were extrapolated to other physiologically related species. For any other species, the additive was considered safe at 20 mg/kg complete feed. No concerns for consumers were identified following the use of pine white oil up to the maximum proposed use levels in feed. The additive under assessment should be considered as irritant to skin and eyes, and as a skin and respiratory sensitiser. The use of pine white oil at the proposed use level in feed was not expected to pose a risk for the environment. Pine white oil was recognised to flavour food. Since its function in feed would be essentially the same as that in food, no further demonstration of efficacy was considered necessary.

Safety and efficacy of feed additives consisting of an essential oil and tincture from the berries of Juniperus communis L. (juniper oil and juniper tincture) for use in all animal species (FEFANA asbl)

Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of juniper oil and juniper tincture obtained from the berries of Juniperus communis L., when used as sensory additives for all animal species. The EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) concluded that juniper oil is safe up to the maximum proposed use levels in complete feed of 5 mg/kg for laying hens, 15 mg/kg for veal calves (milk replacer) and cattle for fattening and 20 mg/kg for ornamental fish. For the other species, the calculated safe concentrations in complete feed were 4 mg/kg for chickens for fattening, 5 mg/kg for turkeys for fattening, 7 mg/kg for piglets, 8 mg/kg for pigs for fattening, 10 mg/kg for sows, dairy cows, 16 mg/kg for sheep, goats and horses, 6 mg/kg for rabbits, 17 mg/kg for salmonids, 18 mg/kg for dogs and 3 mg/kg for cats. These conclusions were extrapolated to other physiologically related species. For any other species, the additive was considered safe at 3 mg/kg complete feed. The FEEDAP Panel concluded that juniper tincture is safe up to the maximum proposed use level in feed of 45 mg/kg complete feed or water for drinking for all animal species. No concerns for consumers and the environment were identified following the use of the additives to the highest safe level in feed. The additives under assessment should be considered as irritants to skin and eyes, and as skin and respiratory sensitisers. Since the berries of J. communis and their preparations are recognised to flavour food and their function in feed would be the same as that in food, no further demonstration of efficacy was considered necessary.

Safety and efficacy of feed additives obtained from the fruit of Pimpinella anisum L.: anise oil for use in poultry and horses and anise tincture for use in poultry, dogs, cats and horses (FEFANA asbl)

Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of anise oil and anise tincture obtained from the fruit of Pimpinella anisum L., when used as sensory additives. The use of the anise oil at the proposed use level in complete feed of 1.9 mg/kg for laying hens and 5 mg/kg for horses was considered of low concern. The EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) had no safety concern when anise oil is used at the proposed use levels of 1.5 mg/kg for chickens for fattening and at 1.7 mg/kg for turkeys for fattening. The use of anise tincture at the proposed conditions of use was considered of low concern in dogs, cats, horses and laying hens, and of no concern in chickens for fattening. The use of the additives up to the highest level in feed which was considered of low or no concern for target animals was also expected to be of no concern for consumers. The additives under assessment should be considered as irritants to skin and eyes, and as dermal and respiratory sensitisers. Due to the high concentration of estragole (≥ 1%), anise oil is classified as suspected of causing genetic defects and of causing cancer and should be handled accordingly. When handling anise tincture, exposure of unprotected users to estragole may occur. Therefore, to reduce the risk, the exposure of the users should be minimised. The use of these additives in animal feed was not expected to pose a risk to the environment. Since the fruit of P. anisum and its preparations are recognised to flavour food and their function in feed would be the same, no further demonstration of efficacy was considered necessary.

Safety and efficacy of a feed additive consisting of an essential oil from the leaves of Laurus nobilis L. (laurel leaf oil) for all animal species (FEFANA asbl)

Following a request from the European Commission, the EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the safety and efficacy of an essential oil from the leaves of Laurus nobilis L. (laurel leaf oil), when used as a sensory additive for all animal species. The additive contains up to 4% methyleugenol. The use of the additive at 2 mg/kg complete feed in dogs and cats was considered of low concern. For other long-living and reproductive animals, the use of the additive at 10 mg/kg was considered of concern. For short-living animals, the Panel had no safety concern when the additive is used at 10 mg/kg complete feed for turkeys for fattening, piglets and other growing Suidae, pigs for fattening, veal calves (milk replacer), cattle for fattening and other growing ruminants, horses and rabbits for meat production, salmonids and other fin fish; and at 8.5 mg/kg for chickens for fattening, other growing poultry and other minor species for fattening. The use of laurel leaf oil up to the highest level in feed which was considered of no concern for target animals was also expected to be of no concern for consumers. The additive should be considered as irritant to skin and eyes and the respiratory tract. Due to the high concentration of methyleugenol (≥ 1%), the additive was classified by the applicant as suspected of causing genetic defects and of causing cancer and should be handled accordingly. The use of the additive under the proposed conditions of use was not expected to pose a risk for the environment. Since the leaves of L. nobilis and their preparations were recognised to flavour food and their function in feed would be the same, no further demonstration of efficacy was considered necessary.

Safety and efficacy of the feed additives 2-acetylfuran [13.054] and 2-pentylfuran [13.059] belonging to chemical group 14 for animal species (FEFANA asbl)

Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of 2-acetylfuran [13.054] and 2-pentylfuran [13.059] belonging to chemical group 14 (furfuryl and furan derivatives with and without additional side-chain substituents and heteroatoms), when used as sensory additives (flavourings) in feed for all animal species. 2-Acetylfuran [13.054] was tested in tolerance studies in chickens for fattening, weaned piglets and cattle for fattening. No adverse effects were observed in the tolerance studies at 10-fold the intended use level. The FEEDAP Panel concluded that 2-acetylfuran [13.054] is safe for these species at the proposed use level of 0.5 mg/kg and conclusions were extrapolated to all animal species. For 2-pentylfuran [13.059], the Panel concluded that it is safe at the proposed maximum use level in feed of 0.5 mg/kg. No safety concern would arise for the consumer from the use of 2-acetylfuran [13.054] and 2-pentylfuran [13.059] up to the proposed maximum use level in feed as flavourings. The additives should be considered as irritant to skin and eyes and the respiratory tract, and as dermal and respiratory sensitisers. The use of 2-acetylfuran [13.054] and 2-pentylfuran [13.059] as flavours in animal feed was not expected to pose a risk for the environment. Since the compounds under assessment are used in food as flavourings and their function in feed is essentially the same as that in food, no further demonstration of efficacy was considered necessary.

Evidence of a sudden increase in α-chloralose poisoning in dogs and cats in the Netherlands between 2018 and 2021

BACKGROUND

After changes in European Union biocide legislation, the Dutch Poisons Information Center observed a strong increase in information requests concerning dogs and cats exposed to α-chloralose. To investigate whether α-chloralose-based rodenticides are safe for non-professional use, additional information regarding poisoning scenarios and clinical course was collected.

METHODS

Veterinarians reporting α-chloralose exposure over a 2.5-year period were contacted by mail for follow-up information concerning exposure scenario, product formulation, clinical course and treatment, and outcome. In total, information was collected for 96 dogs and 41 cats.

RESULTS

Fifty-three of 96 dogs and 17 of 19 cats known to have been exposed to α-chloralose-based rodenticides developed signs of central nervous system (CNS) depression or sensory-induced CNS excitation. Mortality in dogs and cats following exposure was 1% and 18%, respectively. An additional 22 cats presented with clinical signs suggestive of α-chloralose poisoning, with a mortality of 5%.

LIMITATIONS

Exposure to α-chloralose was not confirmed by biochemical analyses.

CONCLUSION

Dogs and especially cats were at risk of poisoning from α-chloralose. If criteria such as acute toxicity and risk of (secondary) poisoning are applied during the approval of α-chloralose-based rodenticides, similar to anticoagulant-based rodenticides, it can be concluded that α-chloralose is also not safe for non-professional use.

Safety and efficacy of a feed additive consisting of an essential oil from the gum resin of Ferula assa-foetida L. (asafoetida oil) for use in dogs and cats (FEFANA asbl)

Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of an essential oil obtained from gum resin of Ferula assa-foetida L. (asafoetida oil), when used as a sensory additive (flavouring) in feed for dogs and cats. The EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) concluded that the use of asafoetida oil is safe at the proposed conditions of use of 1.5 mg/kg complete feed for dogs and 0.2 mg/kg complete feed for cats. The additive under assessment should be considered as irritant to skin and eyes, and as a dermal and respiratory sensitiser. Since F. assa-foetida and its preparations are recognised to flavour food, and its function in feed would be essentially the same as that in food, no further demonstration of efficacy was considered necessary.

Safety and efficacy of a feed additive consisting of an essential oil from the aerial parts of Anethum graveolens L. (dill herb oil) for use in dogs and cats (FEFANA asbl)

Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of an essential oil obtained from the aerial parts of Anethum graveolens L. (dill herb oil), when used as a sensory additive (flavouring) in feed for dogs and cats. The EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) concluded that dill herb oil is safe at use levels in complete feed of 7 mg/kg for dogs and 5 mg/kg for cats. The additive under assessment should be considered as irritant to skin and eyes, and as a dermal and respiratory sensitiser. Since the aerial parts of A. graveolens and its preparations are recognised to flavour food and its function in feed would be essentially the same as that in food, no further demonstration of efficacy was considered necessary.

Safety and efficacy of a feed additive consisting of an essential oil from the fruit of Cuminum cyminum L. (cumin oil) for use in all animal species (FEFANA asbl)

Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of an essential oil obtained from the fruit of Cuminum cyminum L. (cumin oil), when used as a sensory additive in feed and water for drinking for all animal species. The EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) concluded that the use of cumin oil up to the maximum proposed use levels in feed of 15 mg/kg complete feed is considered as safe for all animal species. The FEEDAP Panel considered the use in water for drinking as safe provided that the total daily intake of the additive does not exceed the daily amount that is considered safe when consumed via feed. No concerns for consumers were identified following the use of cumin oil up to the maximum proposed use level in feed. The additive under assessment should be considered as irritant to skin and eyes, and as a dermal and respiratory sensitiser. When handling the essential oil, exposure of unprotected users to estragole (and dillapiole) cannot be excluded. Therefore, to reduce the risk, the exposure of the users should be minimised. The use of cumin oil at the proposed use level in feed is not expected to pose a risk to the environment. Since C. cyminum and its preparations are recognised to flavour food and its function in feed would be essentially the same as that in food, no further demonstration of efficacy is considered necessary.

Safety and efficacy of a feed additive consisting of an extract of condensed tannins from Schinopsis balansae Engl. and Schinopsis lorentzii (Griseb.) Engl. (red quebracho extract) for use in all animal species (FEFANA asbl)

Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of an extract of condensed tannins from Schinopsis balansae Engl. and Schinopsis lorentzii (Griseb.) Engl. (red quebracho extract) when used as a sensory additive in feed and water for drinking for all animal species. The EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) concluded that the additive under assessment is safe up to the maximum proposed use levels of 400 mg/kg for chickens for fattening and other growing poultry, 600 mg/kg for laying hens and other laying/breeding birds kept for egg production/reproduction, 540 mg/kg for turkeys for fattening, 720 mg/kg for piglets, 860 mg/kg for pigs for fattening and other growing Suidae, 1,050 mg/kg for sows, 1,680 mg/kg for veal calves (milk replacer), 1,580 mg/kg for cattle for fattening and other growing ruminants, 1,030 mg/kg for dairy cows and other dairy ruminants, 1,580 mg/kg for sheep, goats, horses, 630 mg/kg for rabbits, 1,810 mg/kg for salmonids and other fin fish, 1,900 mg/kg for dogs and 3,000 mg/kg for ornamental fish. For cats, the calculated safe concentration in feed is 317 mg/kg complete feed. For all the other minor species, the additive is considered safe at 317 mg/kg complete feed. The FEEDAP Panel considered the use in water for drinking as safe provided that the total daily intake of the additive does not exceed the daily amount that is considered safe when consumed via feed. No concerns for consumers were identified following the use of the additive at the maximum proposed use level in feed. The extract under assessment is not an eye irritant but in the absence of data, no conclusion can be drawn on its potential to be a skin irritant and a dermal and respiratory sensitiser. The use of the extract under the proposed conditions of use in feed was not expected to pose a risk for the environment. Since quebracho and its preparations were recognised to flavour food and its function in feed would be essentially the same as that in food, no further demonstration of efficacy was considered necessary.

Safety and efficacy of a feed additive consisting of a tincture derived from the roots of Angelica sinensis (Oliv.) Diels (dong quai tincture) for use in poultry, horses, dogs and cats (FEFANA asbl)

Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of a tincture from the roots of Angelica sinensis (Oliv.) Diels (dong quai tincture) when used as a sensory additive in feed for horses, dogs and cats and in water for drinking for poultry species. The EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) concluded that the additive is safe for horses and dogs at the maximum proposed use level of 123 and 481 mg/kg complete feed, respectively. For cats, the calculated safe concentration is 184 mg/kg complete feed. For the poultry species, the calculated safe concentration in water for drinking is 79 mg/kg for chickens for fattening, 117 mg/kg for laying hens and 106 mg/kg for turkeys for fattening. No safety concern would arise for the consumer from the use of dong quai tincture up to the highest safe levels in feed. The additive under assessment should be considered as irritant to skin and eyes, and as a dermal and respiratory sensitiser. The use of the dong quai tincture as a flavour in animal feed was not expected to pose a risk for the environment. Since the root of A. sinensis has flavouring properties and its function in feed would be essentially the same as that in food, no further demonstration of efficacy is considered necessary.

Safety and efficacy of feed additives consisting of essential oils from the bark and the leaves of Cinnamomum verum J. Presl (cinnamon bark oil and cinnamon leaf oil) for use in all animal species (FEFANA asbl)

Following a request from the European Commission, the EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the safety and efficacy of essential oils from the bark and the leaves of Cinnamomum verum J. Presl (cinnamon bark oil and cinnamon leaf oil), when used as sensory additives (flavourings) in feed and water for drinking for all animal species. Owing to the presence of styrene in the essential oils under assessment, the FEEDAP Panel is not in the position to conclude on the safety for long‐living animals and animals for reproduction. For ‘short‐living’ animals, the FEEDAP Panel concluded that cinnamon bark oil and cinnamon leaf oil are considered as safe up to the maximum proposed use levels in complete feed. For ‘short‐living’ animals, the Panel considered the use of cinnamon bark oil in water for drinking as safe provided that the total daily intake of the additive does not exceed the daily amount that is considered safe when consumed via feed. For cinnamon leaf oil, the proposed use level in water for drinking of 3 mg/L is considered as safe for ‘short‐living’ animals. No concerns for consumers were identified following the use of the additives at the use level considered safe in feed for the target species. Based on the presence of safrole ≥0.1%, cinnamon leaf oil and bark oil are classified as carcinogen (category 1B) and handled accordingly. The use of the additives under the proposed conditions in animal feed was not expected to pose a risk for the environment. Since C. verum and its preparations are recognised to flavour food and its function in feed would be essentially the same, no further demonstration of efficacy is considered necessary for cinnamon essential oils.

Safety and efficacy of a feed additive consisting of an essential oil from Cinnamomum cassia (L.) J. Presl (cassia leaf oil) for use in all animal species (FEFANA asbl)

Following a request from the European Commission, the EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the safety and efficacy of an essential oil from leaves, stalks and twigs of Cinnamomum cassia (L.) J. Presl (cassia leaf oil) when used as a sensory additive (flavouring) in feed and water for drinking for all animal species. Owing to the presence of styrene in cassia leaf oil, the FEEDAP Panel is not in the position to conclude for long-living animals and animals for reproduction. For 'short-living' animals, the FEEDAP Panel concluded that cassia leaf oil is considered as safe up to the maximum proposed use levels in complete feed of 28.5 mg/kg for chickens for fattening and other minor poultry, 38 mg/kg for turkeys for fattening, 51 mg/kg for piglets and other minor Suidae, 61 mg/kg for pigs for fattening, 100 mg/kg for veal calves (milk replacer), 60 mg/kg for cattle for fattening and other ruminants for fattening, 30 mg/kg for horses, 25 mg/kg for rabbits, 125 mg/kg for salmonids and other fin fish. For the other minor species, the additive is considered as safe at 28.5 mg/kg complete feed. For 'short-living' animals, the FEEDAP Panel considered the use in water for drinking as safe provided that the total daily intake of the additive does not exceed the daily amount that is considered safe when consumed via feed. No concerns for consumers were identified following the use of the additive at the use levels considered safe in feed for the target species. When handling the essential oil, exposure of unprotected users to styrene cannot be excluded. Therefore, to reduce the risk, the exposure of the users should be minimised. The use of the additive under the proposed conditions in animal feed was not expected to pose a risk for the environment. Cassia leaf oil was recognised to flavour food. Since its function in feed would be essentially the same as that in food, no further demonstration of efficacy was considered necessary.

Urinary and fecal excretion of aromatic amines in pet dogs and cats from the United States

Several primary aromatic amines (AAs) are known or suspected carcinogens. Despite this, the exposure of pet animals to this class of chemicals is unknown. In this study, we investigated the occurrence of 30 AAs and two tobacco chemical markers (nicotine and cotinine) in 63 pet urine (42 dog and 21 cat) and 77 pet feces (37 dog and 40 cat) samples collected from the Albany area of New York State. Eight of the 30 AAs (∑₈AAs) were found in > 38% of dog and cat urine samples, at median concentrations of 7.99 (range: 0.42-52.3 ng/mL) and 31.4 (2.63-75.9) ng/mL, respectively. Nine of the 30 AAs (∑₉AAs) were found in > 73% of dog and cat feces samples, at median concentrations of 278 (range: 61.7-613 ng/g) and 240 (55.4-645) ng/g dry wt, respectively. Among the 30 AAs, 2,6-dimethylaniline (2,6-DMA) accounted for the highest median concentrations in both urine and fecal samples. Median concentrations of nicotine and cotinine were below 0.92 ng/mL in urine and below 3.86 ng/g in feces of both dogs and cats. No significant relationship was found between AA concentrations and pet age or gender. The lack of significant Spearman's rank correlation between the concentrations of AA and nicotine in pet urine/feces suggested that sources other than tobacco smoke contributed to AA exposure in pets. Furthermore, the calculated fecal excretion rates of AAs were higher than the intake rates (estimated through reverse dosimetry), which indicates that cats and dogs are exposed to AA precursors such as azo dyes. Concentrations in urine and feces reflected exposure to direct and indirect exposure sources, respectively, of AAs.

Safety and efficacy of a feed additive consisting of an essential oil from the leaves of Agathosma betulina (P.J. Bergius) Pillans (buchu leaf oil) for use in all animal species (FEFANA asbl)

Following a request from the European Commission, the EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the safety and efficacy of an essential oil from the leaves of Agathosma betulina (P.J. Bergius) Pillans (buchu leaf oil), when used as a sensory additive (flavouring) in feed and water for drinking for all animal species. The FEEDAP Panel concluded that the essential oil under assessment is safe up to the maximum proposed use levels in complete feed of 0.1 mg/kg for chickens for fattening, 0.15 mg/kg for laying hens, turkeys for fattening and rabbits, 0.20 mg/kg for piglets, 0.25 mg/kg for pigs for fattening, 0.30 mg/kg for sows and dairy cows, 0.45 mg/kg for cattle for fattening, sheep, goats and horses, 0.5 for veal calves (milk replacer), fish, ornamental fish and dogs. For cats, the calculated maximum safe level in feed is 0.2 mg/kg complete feed. The FEEDAP Panel considered that the use in water for drinking is safe provided that the total daily intake of the additive does not exceed the daily amount that is considered safe when consumed via feed. No concerns for consumer safety were identified following the use of the additive up to the highest safe levels in feed. The essential oil under assessment should be considered as irritant to skin and eyes, and as a skin and respiratory sensitiser. The use of the additive in animal feed under the proposed conditions was not expected to pose a risk for the environment. Buchu leaf oil was recognised to flavour food. Since its function in feed would be essentially the same as that in food, no further demonstration of efficacy was considered necessary.

Safety and efficacy of a feed additive consisting of an essential oil from the flowers of Cananga odorata (Lam.) Hook.f. & Thomson (ylang ylang oil) for use in all animal species (FEFANA asbl)

Following a request from the European Commission, the EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the safety and efficacy of an essential oil from the flowers of Cananga odorata (Lam.) Hook.f. & Thomson (ylang ylang oil), when used as a sensory additive in feed and water for drinking for all animal species. The FEEDAP Panel concluded that the essential oil under assessment is safe up to the maximum proposed use levels in complete feed of 1 mg/kg for chickens for fattening, 1.5 mg/kg for laying hens, turkeys for fattening and rabbits, 2 mg/kg for piglets, 2.5 mg/kg for pigs for fattening, 3 mg/kg for sows, 4.5 mg/kg for cattle for fattening, sheep, goats and horses, 5 mg/kg for veal calves (milk replacer), fish, dogs and ornamental fish. For cats, the calculated safe concentration in complete feed is 1 mg/kg feed. The FEEDAP Panel considered that the use in water for drinking is safe provided that the total daily intake of the additive does not exceed the daily amount that is considered safe when consumed via feed. No concerns for consumer safety were identified following the use of the additive up to the maximum proposed use level in feed. The essential oil under assessment should be considered as irritant to skin and eyes, and as a skin and respiratory sensitiser. The use of the additive in animal feed under the proposed conditions of use was not expected to pose a risk for the environment. Ylang ylang oil is recognised to flavour food. Since its function in feed would be essentially the same as that in food, no further demonstration of efficacy is considered necessary.

Safety and efficacy of a feed additive consisting of an essential oil from Cinnamomum camphora (L.) J. Presl (camphor white oil) for use in all animal species (FEFANA asbl)

Following a request from the European Commission, the EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the safety and efficacy of an essential oil from the whole plant Cinnamomum camphora (L.) J. Presl (camphor white oil), when used as a sensory additive (flavouring) in feed and water for drinking for all animal species. The FEEDAP Panel concluded that the additive is safe up to the maximum proposed use levels in complete feed of 30 mg/kg for piglets, pigs for fattening, sows, horses, rabbits, fish, ornamental fish and dogs and of 50 mg/kg for calves (milk replacer), cattle for fattening, dairy cows, sheep and goats. For the other species, the calculated safe concentration in complete feed is 28 mg/kg for chickens for fattening, 42 mg/kg for laying hens, 37 mg/kg for turkeys for fattening and 22 mg/kg for cats. The FEEDAP Panel considered that the use in water for drinking is safe provided that the total daily intake of the additive does not exceed the daily amount that is considered safe when consumed via feed. No concerns for consumers were identified following the use of the additive at the use level considered safe in feed for the target species. The essential oil under assessment should be considered as irritant to skin and eyes, and as a skin and respiratory sensitiser. The use of the additive under the proposed conditions in animal feed was not expected to pose a risk for the environment. Camphor white oil was recognised to flavour food. Since its function in feed would be essentially the same as that in food, no further demonstration of efficacy was considered necessary.

Safety and efficacy of two solvent extracts of rosemary (Rosmarinus officinalis L.) when used as feed additive for cats and dogs (Kemin Nutrisurance Europe SRL)

Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of two rosemary extracts obtained from the ■■■■■ of Rosmarinus officinalis L., as a technological (antioxidant) feed additive for cats and dogs. The two rosemary extracts were obtained through two different solvent extraction methods, acetone and ethanol. The additives were specified to contain carnosic acid and carnosol as the reference antioxidative compounds at a minimum content of their sum as ≥ 10% in the case of the acetone extract and ≥ 5% for the ethanol extract. Based on the data available, the FEEDAP Panel concluded that the maximum safe concentrations of the additives in feed were 300 and 50 mg/kg feed, for dogs and cats, respectively. No data on potential effects on respiratory system were available; however, as the products are in liquid form, the FEEDAP Panel considered that the exposure through inhalation is unlikely. The additives were shown to be irritant to skin and consequently they were considered also eye irritants. Due to the lack of data, the FEEDAP Panel cannot conclude on the potential of the additives to be skin sensitisers. The food and feed matrices in which the additives are intended to be used are of comparable nature. Therefore, the antioxidant effect observed when the additives are used in food is expected to be observed also when the additives are used in feed at the recommended concentrations.

Safety and efficacy of a feed additive consisting of an aqueous extract of Citrus limon (L.) Osbeck (lemon extract) for use in all animal species (Nor-Feed SAS)

Following a request from the European Commission, the Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the safety and efficacy of an aqueous extract of Citrus limon (L.) Osbeck (lemon extract) when used as a sensory additive in feed for all animal species. The FEEDAP Panel concluded that the additive under assessment is safe for all animal species up to the maximum proposed use levels of 1,000 mg/kg complete feed and 250 mg/kg water for drinking. No concerns for consumers were identified following the use of lemon extract up to the highest safe level in feed. The additive should be considered a skin and eye irritant, and a potential corrosive. The use of the extract in animal feed under the proposed conditions was not expected to pose a risk for the environment. Lemon extract was recognised to flavour food. Since its function in feed would be essentially the same as that in food, no further demonstration of efficacy was considered necessary.

The profile of urinary lipid metabolites in cats with bacterial cystitis

Bacterial cystitis is one of the feline lower urinary tract diseases (FLUTDs). Polyunsaturated fatty acids, such as arachidonic acid (ARA), docosahexaenoic acid (DHA), and eicosapentaenoic acid (EPA), are oxidized into various lipid mediators that modulate inflammation. Since the profile of lipid metabolites excreted in urine is useful for assessing inflammatory body conditions, we analyzed 126 types of urinary lipid metabolites in cats with bacterial cystitis. Using LC-MS/MS, we found that the levels of 11 metabolites were higher in the urine of cystitis cats than in the urine of healthy cats. In detail, the urinary levels of ARA, EPA, and DHA and eight of their metabolites were increased in cystitis cats. Focusing on the lipid oxidation pathway, the urinary levels of four cyclooxygenase-, three lipoxygenase-, and one cytochrome p450-dependent oxidated metabolites were increased in bacterial cystitis. These urinary lipid profiles can provide some insight into the pathology and future diagnosis of bacterial cystitis.

Safety and efficacy of feed additives consisting of expressed sweet orange peel oil and its fractions from Citrus sinensis (L.) Osbeck for use in all animal species (FEFANA asbl)

Following a request from the European Commission, the EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the safety and efficacy of expressed sweet orange oil and its fractions obtained from the fruit peels of Citrus sinensis (L.) Osbeck, when used as sensory additives (flavourings) in feed and water for drinking for all animal species. The presence of perillaldehyde was identified as a source of potential concern. However, in target species fed citrus by-products as part of daily feed, the use of the expressed orange oil and its fractions was not expected to increase the exposure to perillaldehyde to a relevant extent (< 10%). For dogs, cats, ornamental fish and ornamental birds not normally exposed to citrus by-products, no conclusion can be drawn. For the other species, the FEEDAP Panel concluded that the additives under assessment are safe at the maximum proposed use levels in complete feed. The FEEDAP Panel considered that the use in water for drinking is safe provided that the total daily intake of the additive does not exceed the daily amount that is considered safe when consumed via feed. No concerns for consumer safety were identified following the use of the additives up to the maximum proposed use level in feed. The additives under assessment should be considered as irritants to skin and eyes, and as skin and respiratory sensitisers. The use of the additives under the proposed conditions of use in animal feed was not expected to pose a risk for the environment. Expressed orange oil and its fractions were recognised to flavour food. Since their function in feed would be essentially the same as that in food, no further demonstration of efficacy was considered necessary.

Safety of a feed additive consisting of a dried aqueous ethanol extract from the leaves of Melissa officinalis L. for all animal species (Nor-Feed SAS)

The additive under assessment is a dried aqueous ethanol extract of Melissa officinalis L. leaves, intended to be used as a sensory additive (flavouring compound) in feed for all animal species. The aqueous ethanol extract is specified to contain ≥ 10% of hydroxycinnamic acid derivatives including ≥ 3% of rosmarinic acid. In a previous assessment, considering the contradictory data from the Ames tests and uncertainty about the qualitative and quantitative presence of flavonoids and other compounds in the extract from M. officinalis L. leaves, the Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) could not conclude on the safety of the additive at the proposed use levels of up to 100 mg/kg complete feed for the target species, the consumer and the user. The new data submitted identified luteolin 3'-glucuronide as the only flavonoid present in the additive, improved the characterisation of the hydroxycinnamates present and demonstrated that the additive is not genotoxic. The FEEDAP Panel concludes that the additive under assessment is safe up to the maximum proposed use level of 100 mg/kg complete feed for all animal species. The use in water for drinking is safe provided that the total daily intake of the additive does not exceed the daily amount that is considered safe when consumed via feed. No safety concern would arise for the consumer from the use of the additive up to the highest safe level in animal nutrition. The exposure of users to dusts from the additive is not of concern. No data are provided on irritant properties for eyes or skin, thus no conclusion can be drawn on these aspects. Due to the nature of the additive, it may be assumed to be potentially both a skin and respiratory sensitiser.

Species Differences in Metabolism of Soluble Epoxide Hydrolase Inhibitor, EC1728, Highlight the Importance of Clinically Relevant Screening Mechanisms in Drug Development

There are few novel therapeutic options available for companion animals, and medications rely heavily on repurposed drugs developed for other species. Considering the diversity of species and breeds in companion animal medicine, comprehensive PK exposures in the companion animal patient is often lacking. The purpose of this paper was to assess the pharmacokinetics after oral and intravenous dosing in domesticated animal species (dogs, cats, and horses) of a novel soluble epoxide hydrolase inhibitor, EC1728, being developed for the treatment of pain in animals. Results: Intravenous and oral administration revealed that bioavailability was similar for dogs, and horses (42 and 50% F) but lower in mice and cats (34 and 8%, respectively). Additionally, clearance was similar between cats and mice, but >2× faster in cats vs. dogs and horses. Efficacy with EC1728 has been demonstrated in mice, dogs, and horses, and despite the rapid clearance of EC1728 in cats, analgesic efficacy was demonstrated in an acute pain model after intravenous but not oral dosing. Conclusion: These results demonstrate that exposures across species can vary, and investigation of therapeutic exposures in target species is needed to provide adequate care that addresses efficacy and avoids toxicity.

Safety and efficacy of a feed additive consisting of a flavonoid-rich dried extract of Citrus × aurantium L. fruit (bitter orange extract) for use in all animal species (FEFANA asbl)

Following a request from the European Commission, the EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the safety and efficacy of a dried flavonoid-rich extract of Citrus × aurantium L. fruit (bitter orange extract), when used as a sensory additive for all animal species. The use of the additive in feed was not expected to increase the exposure to furocoumarins of those target species that are already fed citrus by-products to a relevant extent (< 5%). For dog, cat and ornamental fish, not normally exposed to citrus by-products, no conclusion could be drawn. The FEEDAP Panel concluded that the additive under assessment is safe up to the maximum proposed use level of 400 mg/kg for veal calf (milk replacer), sheep, goat, horse and salmon. For the other species, the calculated maximum safe concentration in complete feed is 102 mg/kg for chicken for fattening, 151 mg/kg for laying hen, 136 mg/kg for turkey for fattening, 182 mg/kg for piglet, 217 mg/kg for pig for fattening, 268 mg/kg for sow, 259 mg/kg for dairy cow and 161 mg/kg for rabbit. The FEEDAP Panel considered that the use in water for drinking is safe provided that the total daily intake of the additive does not exceed the daily amount that is considered safe when consumed via feed, except dog, cat and ornamental fish. No concerns for consumer safety were identified following the use of the additive up to highest safe level in feed for the target animals. The extract under assessment should be considered as irritant to skin, eyes and the respiratory tract, and as a skin sensitiser. Since the additive contains 5-methoxypsoralen, it may cause phototoxicity. The use of the extract in animal feed under the proposed conditions was not expected to pose a risk for the environment. Bitter orange extract was recognised to flavour food. Since its function in feed would be essentially the same as that in food, no further demonstration of efficacy was considered necessary.

Safety and efficacy of a feed additive consisting of expressed mandarin oil from the fruit peels of Citrus reticulata Blanco for use in all animal species (FEFANA asbl)

Following a request from the European Commission, the EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the safety and efficacy of expressed mandarin oil from the fruit peels of Citrus reticulata Blanco, when used as a sensory additive (flavouring) in feed and water for drinking for all animal species. The FEEDAP Panel concluded that the essential oil under assessment is safe up to the maximum proposed use levels in complete feed of 15 mg/kg for poultry, 33 mg/kg for pigs, 30 mg/kg for ruminants, 40 mg/kg for horse, and 15 mg/kg for salmon and rabbit. The presence of perillaldehyde was identified as a source of potential concern. However, in target species fed citrus by-products as part of daily feed the use of the expressed mandarin oil in feed was not expected to increase the exposure to perillaldehyde to a relevant extent (< 4%). For companion animals and ornamental fish not normally exposed to citrus by-products, no conclusion can be drawn. The FEEDAP Panel considered that the use in water for drinking is safe provided that the total daily intake of the additive does not exceed the daily amount that is considered safe when consumed via feed. No concerns for consumer safety were identified following the use of the additive up to the maximum proposed use level in feed. The essential oil under assessment should be considered as irritant to skin, eyes and the respiratory tract, and as a skin sensitiser. The use of the additive in animal feed under the proposed conditions of use was not expected to pose a risk for the environment. Expressed mandarin oil was recognised to flavour food. Since its function in feed would be essentially the same as that in food, no further demonstration of efficacy was considered necessary.

Safety and efficacy of a feed additive consisting of an essential oil from the leaves of Citrus × aurantium L. (petitgrain bigarade oil) for use in all animal species (FEFANA asbl)

Following a request from the European Commission, the EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the safety and efficacy of an essential oil from the leaves of Citrus x aurantium L. (petitgrain bigarade oil), when used as a sensory additive (flavouring) in feed and water for drinking for all animal species. The FEEDAP Panel concluded that the essential oil under assessment is safe up to the maximum proposed use level of 125 mg/kg complete feed for ornamental fish. For the other species, the calculated safe concentrations in complete feed are 10 mg/kg for chicken for fattening, 14 mg/kg for laying hen, 13 mg/kg for turkey for fattening, 17 mg/kg for piglet, 20 mg/kg for pig for fattening, 25 mg/kg for lactating sow, 43 mg/kg for veal calf (milk replacer), 38 mg/kg for cattle for fattening, sheep, goat and horse, 24 mg/kg for dairy cow, 15 mg/kg for rabbit, 42 mg/kg for salmon, 44 mg/kg for dog and 8 mg/kg for cat. The FEEDAP Panel considered that the use level in water for drinking is safe provided that the total daily intake of the additive does not exceed the daily amount that is considered safe when consumed via feed. Simultaneous use in feed and water for drinking may lead to the maximum safe dose being exceeded. No concerns for consumer safety were identified following the use of the additive up to the highest safe level in feed. The essential oil under assessment should be considered as irritant to skin, eyes and the respiratory tract, and as a skin sensitiser. The use of the additive in animal feed under the proposed conditions was not expected to pose a risk for the environment. Petitgrain bigarade oil was recognised to flavour food. Since its function in feed would be essentially the same as that in food, no further demonstration of efficacy was considered necessary.

Safety and efficacy of a feed additive consisting of an essential oil from the fruits of Litsea cubeba (Lour.) Pers. (litsea berry oil) for use in all animal species (FEFANA asbl)

Following a request from the European Commission, the EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the safety and efficacy of an essential oil from the fruits of Litsea cubeba (Lour.) Pers. (litsea berry oil), when used as a sensory additive (flavouring) in feed and water for drinking for all animal species. The FEEDAP Panel concluded that litsea berry oil is safe up to the maximum proposed use level of 125 mg/kg complete feed for ornamental fish. For the other species, the calculated safe concentration in complete feed are 11 mg/kg for chicken for fattening, 16 mg/kg for laying hen, 14 mg/kg for turkey for fattening, 19 mg/kg for piglet, 23 mg/kg for pig for fattening, 28 mg/kg for lactating sow, 48 mg/kg for veal calf (milk replacer), 43 mg/kg for cattle for fattening, sheep, goat and horse, 28 mg/kg for dairy cow, 17 mg/kg for rabbit, 47 mg/kg for salmon, 50 mg/kg for dog and 8.5 mg/kg for cat. The FEEDAP Panel also concluded that the use of litsea berry oil at the maximum proposed use level in water for drinking of 1 mg/kg is safe for all animal species. Simultaneous use in feed and water for drinking may lead to the maximum safe dose being exceeded. No concerns for consumer safety were identified following the use of the additive up to the highest safe use level in feed for the target animals. The essential oil under assessment should be considered as irritant to skin and eyes, and as a skin and respiratory sensitiser. The use of the additive in animal feed under the proposed conditions was not expected to pose a risk for the environment. Litsea berry oil is recognised to flavour food. Since its function in feed would be essentially the same as that in food, no further demonstration of efficacy was considered necessary.