WO1997036483A1 - Dispositif externe anti-parasitaire pour bovins a base de n-phenylpyrazole, en particulier boucles auriculaires - Google Patents
Dispositif externe anti-parasitaire pour bovins a base de n-phenylpyrazole, en particulier boucles auriculaires Download PDFInfo
- Publication number
- WO1997036483A1 WO1997036483A1 PCT/FR1997/000539 FR9700539W WO9736483A1 WO 1997036483 A1 WO1997036483 A1 WO 1997036483A1 FR 9700539 W FR9700539 W FR 9700539W WO 9736483 A1 WO9736483 A1 WO 9736483A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- alkyl
- haloalkyl
- radical
- compound
- formula
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
- A01N43/56—1,2-Diazoles; Hydrogenated 1,2-diazoles
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having no bond to a nitrogen atom
Definitions
- the present invention relates to external antiparasitic devices for cattle, in particular in the form of a loop and more particularly of an ear loop (ear loop).
- Haematobia irritans horn fly in English
- This parasite which is found mainly in North America but also in Europe, Australia, South Africa, can cause considerable economic losses, both in terms of weight gain and milk production, especially when the parasite pressure exceeds 50 flies per animal, while in some regions it is not uncommon to exceed 200 flies per animal.
- Ear loops have also been proposed, intended, as their name suggests, to be fixed on the animal's ear and to release an active substance over a more or less long period.
- These loops consist of a matrix, usually a plastic matrix, incorporating the active substance and capable of releasing it over time. The loops are therefore theoretically intended to provide lasting protection.
- the loops do not exhibit the effectiveness required in the field to ensure the actual elimination of these parasites.
- the cause may be the low activity of the active substance included in the matrix.
- Another cause may be the accelerated degradation of these active substances under the influence of climatic factors, such as light, heat, rain.
- the control of the release of the active substance from the matrix is greatly overestimated.
- the release is generally difficult and variable, it may depend strongly on the manufacturing conditions which may vary from one batch to another, and the conditions of use ', in particular climatic variations and in particular the humidity and temperature, etc.
- only a relatively small amount of the active ingredient incorporated is actually released and it proves difficult to want to control and optimize the release.
- organophosphates made it possible to obtain a release of approximately 4 months but with considerable concentrations of active substance, of the order of 40% by weight.
- A-0 296 381 and EP-A-0 500 209 concern a family insecticides that are N-phenylpyrazoles. These substances are described as being active against a very large number of parasites encountered in various fields, namely agriculture, public health, human and veterinary medicine.
- EP-A-0 500 209 indicates that, in the field of public health, these compounds can be used to combat a large number of insects, in particular flies among which are cited "hornfly" or Haematobia irritans. Haematobia irritans is not mentioned in the context of the treatment of animals.
- Topical administration itself covers various possibilities, namely sprays, powders, baths, showers, jets, greases, shampoos, creams, waxes, preparations of the skin solution type (pour-on) and external devices such as loops earrings and necklaces to provide local treatment or whether ystémique.
- EP-A-0 295 117 and EP-A-0 500 209 additionally propose a composition for slow release which can be put in the form of a necklace or ear loops to fight against harmful insects.
- Such a formulation can comprise from 0.5 to 25% of active material, from 75 to 99.5% of polyvinyl chloride and a catalytic amount of a plasticizer, dioctyl phthalate.
- US-A-5472955 illustrates the difficult nature of the fight against Haematobia irritans and indicates that it is necessary to use a combination of two active compounds, diazinon and chlorpyrifos, in high concentration within a slow release device. This document indicates that the compounds taken alone are not as effective as the synergistic combination of the two compounds. Diazinon simply provides acceptable control of Haematobia irritans over 3 to 5 months while chlorpyrifos seems incapable. This document specifies at the end that an ear mouth containing a 40% mixture was much more active than 2 ear loops applied to the same animal and containing 21.4% diazinon as the only active ingredient. If the proportion of active principle can range in theory from 8 to 40%, it is preferably between 20 and 40%. In the case of ear loops the proportion is from 10 to 50% by weight, preferably from 30 to 45% and optimally from 40% by weight.
- the Applicant has surprisingly found that it was actually possible to effectively eliminate Haematobia irritans in cattle by using an ear loop using an N-phenylpyrazole under specific concentration conditions.
- the Applicant has surprisingly found that, despite the problems associated with release by the ear loops, the effectiveness extends to the entire body of the animal and is very long-lasting and that, for example with loops loaded at 10%, we could exceed 32 weeks of efficiency greater than 90%.
- the active substance acts by simple contact, the parasite impregnating it on contact with hair and skin.
- the present invention therefore relates to an external device such as a loop, in particular an ear loop, intended for the elimination of parasites from cattle, in particular from
- Haematobia irritans formed of a matrix including from 0.1 to 40
- R x is CN or methyl or a halogen atom
- R 2 is S (0) n R 3 or 4, 5-dicyanoimidazol 2-yl or haloalkyl;
- R 3 is alkyl or haloalkyl;
- R 5 and R 6 independently represent the hydrogen atom or an alkyl, haloalkyl, C (O) alkyl, alkoxycarbonyl, S (0) r CF 3 radical; or R 5 and R 6 may together form a divalent alkylene radical which may be interrupted by one or two divalent heteroatoms, such as oxygen or sulfur;
- R 7 represents an alkyl or haloalkyl radical
- R 8 represents an alkyl or haloalkyl radical or a hydrogen atom
- R 9 represents an alkyl radical or a hydrogen atom
- R 10 represents a phenyl or heteroaryl group optionally substituted by one or more halogen atoms or groups such as OH, -0-alkyl, -S-alkyl, cyano, or alkyl;
- R u and R 12 represent, independently of one another, a hydrogen or halogen atom, or optionally CN or N0 2 ;
- R 13 represents a halogen atom or a haloalkyl, haloalkoxy, S (0) q CF 3 or SF 5 group ; m, n, q, r represent, independently of one another, an integer equal to 0, 1 or 2;
- the compound of formula (I) is such that:
- R x is CN or methyl;
- R 2 is S (0) n R 3 ;
- R 3 is alkyl or haloalkyl
- R 5 and R 6 independently represent the hydrogen atom or an alkyl, haloalkyl, C (O) alkyl, S (O) r CF 3 radical; or R 5 and R 6 may together form a divalent alkylene radical which may be interrupted by one or two divalent heteroatoms, such as oxygen or sulfur;
- R 7 represents an alkyl or haloalkyl radical;
- R 8 represents an alkyl or haloalkyl radical or a hydrogen atom
- R 9 represents an alkyl radical or a hydrogen atom
- R 10 represents a phenyl or heteroaryl group optionally substituted by one or more halogen atoms or groups such as OH, -O-alkyl, -S-alkyl, cyano, or alkyl;
- R n and R 12 represent, independently of one another, a hydrogen or halogen atom
- R 13 represents a halogen atom or a haloalkyl, haloalkoxy, S (0) q CF 3 or SF 5 group ; m, n, q, r represent, independently of one another, an integer equal to 0, 1 or 2;
- X represents a trivalent nitrogen atom or a C- R 12 radical, the other three valences of the carbon atom being part of the aromatic ring; with the proviso that when R x is methyl, either R 3 is haloalkyl, R 4 is NH 2 , R u is Cl, R 13 is CF 3 , and X is N.
- R x is CN.
- R u is a halogen atom as well as those in which R 13 is haloalkyl, preferably CF 3 .
- the compounds combining two or more of these characteristics will advantageously be retained.
- a preferred class of compounds of formula (I) consists of the compounds such that R x is CN, R 3 is haloalkyl, preferably CF 3 , or ethyl, R 4 is NH 2 , R u and R 12 are independently the one of the other a halogen atom, and / or R 13 is haloalkyl.
- the alkyl radicals of the definition of the compounds of formulas (I) generally contain from 1 to 6 carbon atoms.
- the ring formed by the divalent alkylene radical representing R s and R 6 as well as the nitrogen atom to which R 5 and R 6 are attached, is generally a 5, 6 or 7-membered ring.
- a compound of formula (I) very particularly preferred in the invention is l- [2,6-Cl 2 4-CF 3 phenyl] 3-CN 4- [SO-CF 3 ] 5-NH 2 pyrazole, hereinafter referred to as -after compound A.
- the loops according to the invention comprise from 5 to 10% by weight of active substance, in particular of compound A.
- the external devices naturally include any device intended to be fixed to the body of the animal and making it possible to release the active substance under the conditions of effectiveness of the invention.
- ear loops By acting on the concentration of active substance and / or on the composition, it is possible to manufacture ear loops having an efficiency with respect to Haematobia irritans which can exceed 90% and even 95% for more than 30 weeks, especially for 32 weeks .
- the active substance may, however, comprise, in addition to the compound of formula (I), another insecticide, for example pyrethroids (in particular permethin, cypermethrine, etc.), organophosphorus (for example diazinon), imidacloprid and IGR
- This combination of active substances can be done in different ways. Either the active substances are brought together within the same ear loop, including a composite ear loop, i.e. made in two parts, each part including one of the active substances, or two separate ear loops are used, each comprising one of the active substances, and intended to be placed, preferably, each on a different ear of the animal. In the latter case, the subject of the invention is a kit comprising these two ear loops.
- the matrix of the external devices according to the invention can be based on polyvinyl chloride (PVC) (see US-A-3,318,769, 3,852,416, 4,150,109, 5,437,869) and other vinyl polymers, optionally supplemented with '' additives such as plasticizers, pigments, etc.
- PVC polyvinyl chloride
- the plasticizers can in particular be chosen from adipates, phthalates, phosphates and citrates.
- One or more plasticizers will preferably be added to the PVC, in particular chosen from the following compounds:
- a PVC matrix will be used in the presence of a residual primary plasticizer as described above and of a secondary plasticizer, in particular according to EP-A-0 539 295 and EP-A-0 537 998.
- the present invention also relates to a process for eliminating external parasites, in particular Haematobia irritans, from cattle, especially bred in the open air and more particularly in extensive grazing, consisting in attaching the earring (s) to the animal according to the present invention and ensuring the effective and lasting protection described above.
- This method generally consists in attaching to the animal 1 or 2 ear loops or the like loaded with compound according to the invention, preferably with compound A. These loops have the specifications mentioned above.
- the method may also include the combined use of other insecticides, by the use of loops, composite loops or different loops as described above.
- the method according to the invention provides for the animal to wear the loop (s) throughout the year.
- the aim of the method is non-therapeutic and in particular to clean the skin and the hair of the animals by eliminating the parasites which are present there as well as their residues and excrements.
- the animals are no longer stressed by the parasites and their bites, which has positive consequences for example on their growth and on the use of their food ration.
- Another object of the invention is a therapeutic method using the external device according to the invention, intended for the treatment and prevention of parasitoses having pathogenic consequences.
- the present invention also relates to the use of a compound corresponding to formula (I) above, for the production of external devices such as loops, in particular ear loops, intended to be attached to cattle to ensure the elimination of Haematobia irritans at a high degree of effectiveness and over a period exceeding 30 weeks.
- the devices as described before are targeted.
- the use according to the invention provides for the incorporation of 0.1 to 40% by weight, preferably from 1 to 15% by weight, of the compound of formula (I) in a matrix intended to form the external device. . Even more preferably, the incorporation is carried out at a rate of 2.5 to 10% by weight, and even from 5 to 10%.
- the use according to the invention aims at the manufacture of ear loops.
- the use according to the invention is aimed at producing external devices or ear loops having an efficiency greater than 90% or 95%. / 36483 PC17FR97 / 00539
- FIG. 1 is a graph showing the population of Haematobia irritans in a control group, over time
- FIG. 2 is a graph with time (week) on the abscissa and the arithmetic mean of the count of Haematobia irritans on the ordinate.
- Group B 10 heifers having received ear loops loaded with 2.5% of compound A. Each animal receives a loop.
- Group C 10 heifers having received ear loops loaded with 10% of compound A. Each animal receives a loop.
- Group D 10 heifers having received ear loops loaded with 10% of compound A. Each animal receives two loops, one per ear.
- the ear loops are made from polyvinyl chloride (PVC), added with a stabilizer (Mark 152S), a plasticizer (acetyl tributyl citrate) and a pigment (titanium dioxide). They are produced by injection molding. Each group of animals is placed in a pasture of approximately 100 to 150 acres (40 to 60 hectares).
- Haematobia irritans The infestation by Haematobia irritans is of natural origin.
- the calendar is as follows: on day 0, we place the earrings. The Haematobia irritans parasites are then counted every 6, 7 or 8 days.
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- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BR9702178A BR9702178A (pt) | 1996-03-29 | 1997-03-26 | Dispositivo externo antiparasitário para gado bovino á base de n-fenilpirazol em particular anéis auriculares |
| CA002222199A CA2222199C (fr) | 1996-03-29 | 1997-03-26 | Dispositif externe anti-parasitaire pour bovins a base de n-phenylpyrazole, en particulier boucles auriculaires |
| AU25127/97A AU2512797A (en) | 1996-03-29 | 1997-03-26 | External anti-parasitic device containing N-phenylpyrazole, particularly an earring for use on cattle |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR96/04207 | 1996-03-29 | ||
| FR9604207A FR2746584B1 (fr) | 1996-03-29 | 1996-03-29 | Dispositif externe anti-parasitaire pour bovins a base de n-phenylpyrazole, en particulier boucles auriculaires |
| US69211296A | 1996-08-05 | 1996-08-05 | |
| US08/692,112 | 1996-08-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1997036483A1 true WO1997036483A1 (fr) | 1997-10-09 |
Family
ID=26232630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR1997/000539 Ceased WO1997036483A1 (fr) | 1996-03-29 | 1997-03-26 | Dispositif externe anti-parasitaire pour bovins a base de n-phenylpyrazole, en particulier boucles auriculaires |
Country Status (9)
| Country | Link |
|---|---|
| BE (1) | BE1010477A3 (fr) |
| BR (1) | BR9702178A (fr) |
| CA (1) | CA2222199C (fr) |
| FR (1) | FR2746596B1 (fr) |
| GR (1) | GR970100096A (fr) |
| IE (1) | IE970224A1 (fr) |
| IT (1) | ITTO970267A1 (fr) |
| NL (1) | NL1005671C2 (fr) |
| WO (1) | WO1997036483A1 (fr) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6075043A (en) * | 1996-12-05 | 2000-06-13 | Pfizer Inc. | Parasiticidal pyrazoles |
| US7435753B2 (en) | 2003-12-18 | 2008-10-14 | Pfizer Limited | Substituted arylpyrazoles |
| US7514464B2 (en) | 2003-12-18 | 2009-04-07 | Pfizer Limited | Substituted arylpyrazoles |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0295117A1 (fr) * | 1987-06-12 | 1988-12-14 | Rhone-Poulenc Agriculture Limited | Dérivés de N-phénylpyrazoles |
| EP0296381A1 (fr) * | 1987-06-12 | 1988-12-28 | Bayer Ag | Méthylamino-5-aryl-1 pyrazoles substitués |
| EP0500209A1 (fr) * | 1991-01-18 | 1992-08-26 | Rhone-Poulenc Agrochimie | 1-(2-Pyridyl)pyrazoles pesticides |
| EP0537998A1 (fr) * | 1991-10-15 | 1993-04-21 | Merck & Co. Inc. | Dispositif d'administration de médicaments à libération contrôlée comprenant une matrice de polymère et un plastifiant |
| EP0539295A1 (fr) * | 1991-10-24 | 1993-04-28 | Roussel-Uclaf | Système pesticide |
| US5321040A (en) * | 1993-06-02 | 1994-06-14 | Rhone-Poulenc Inc. | Pesticidal 1-aryl-5-(substituted N-cinnamylideneimino) pyrazoles |
| US5472955A (en) * | 1994-06-07 | 1995-12-05 | Y-Tex Corporation | Insecticide mixture for ear tags |
-
1997
- 1997-03-17 GR GR970100096A patent/GR970100096A/el unknown
- 1997-03-21 IE IE970224A patent/IE970224A1/en not_active Application Discontinuation
- 1997-03-26 WO PCT/FR1997/000539 patent/WO1997036483A1/fr not_active Ceased
- 1997-03-26 BR BR9702178A patent/BR9702178A/pt not_active IP Right Cessation
- 1997-03-26 CA CA002222199A patent/CA2222199C/fr not_active Expired - Lifetime
- 1997-03-26 FR FR9703706A patent/FR2746596B1/fr not_active Expired - Lifetime
- 1997-03-27 BE BE9700274A patent/BE1010477A3/fr not_active IP Right Cessation
- 1997-03-27 NL NL1005671A patent/NL1005671C2/nl not_active IP Right Cessation
- 1997-03-28 IT ITTO970267 patent/ITTO970267A1/it not_active IP Right Cessation
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0295117A1 (fr) * | 1987-06-12 | 1988-12-14 | Rhone-Poulenc Agriculture Limited | Dérivés de N-phénylpyrazoles |
| EP0296381A1 (fr) * | 1987-06-12 | 1988-12-28 | Bayer Ag | Méthylamino-5-aryl-1 pyrazoles substitués |
| EP0500209A1 (fr) * | 1991-01-18 | 1992-08-26 | Rhone-Poulenc Agrochimie | 1-(2-Pyridyl)pyrazoles pesticides |
| EP0537998A1 (fr) * | 1991-10-15 | 1993-04-21 | Merck & Co. Inc. | Dispositif d'administration de médicaments à libération contrôlée comprenant une matrice de polymère et un plastifiant |
| EP0539295A1 (fr) * | 1991-10-24 | 1993-04-28 | Roussel-Uclaf | Système pesticide |
| US5321040A (en) * | 1993-06-02 | 1994-06-14 | Rhone-Poulenc Inc. | Pesticidal 1-aryl-5-(substituted N-cinnamylideneimino) pyrazoles |
| US5472955A (en) * | 1994-06-07 | 1995-12-05 | Y-Tex Corporation | Insecticide mixture for ear tags |
Non-Patent Citations (1)
| Title |
|---|
| "EXTENDED EFFICACY SPECTRUM OF AZOLE PESTICIDES", RESEARCH DISCLOSURE, no. 380, 1 December 1995 (1995-12-01), pages 802, XP000549823 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6075043A (en) * | 1996-12-05 | 2000-06-13 | Pfizer Inc. | Parasiticidal pyrazoles |
| US6268509B1 (en) | 1996-12-05 | 2001-07-31 | Pfizer Inc | Parasiticidal pyrazoles |
| US7435753B2 (en) | 2003-12-18 | 2008-10-14 | Pfizer Limited | Substituted arylpyrazoles |
| US7514464B2 (en) | 2003-12-18 | 2009-04-07 | Pfizer Limited | Substituted arylpyrazoles |
Also Published As
| Publication number | Publication date |
|---|---|
| BE1010477A3 (fr) | 1998-09-01 |
| MX9708994A (es) | 1998-10-31 |
| BR9702178A (pt) | 1999-03-16 |
| CA2222199A1 (fr) | 1997-10-09 |
| IE970224A1 (en) | 1997-10-08 |
| FR2746596A1 (fr) | 1997-10-03 |
| FR2746596B1 (fr) | 1999-12-31 |
| ITTO970267A1 (it) | 1997-09-29 |
| GR970100096A (el) | 1997-11-28 |
| NL1005671A1 (nl) | 1997-09-30 |
| NL1005671C2 (nl) | 1997-11-06 |
| CA2222199C (fr) | 2007-11-13 |
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