(19)
(11)EP 2 124 612 B1

(12)EUROPEAN PATENT SPECIFICATION

(45)Mention of the grant of the patent:
21.10.2015 Bulletin 2015/43

(21)Application number: 08743532.7

(22)Date of filing:  22.02.2008
(51)International Patent Classification (IPC): 
A23K 1/16(2006.01)
A23K 1/18(2006.01)
(86)International application number:
PCT/US2008/054789
(87)International publication number:
WO 2008/103950 (28.08.2008 Gazette  2008/35)

(54)

COMPOSITIONS AND METHODS FOR ENHANCING IMMUNE SYSTEM OF FELINES

ZUSAMMENSETZUNGEN UND VERFAHREN ZUR STÄRKUNG DES IMMUNSYSTEMS VON KATZEN

COMPOSITIONS ET MÉTHODES PERMETTANT D'AMÉLIORER LE SYSTÈME IMMUNITAIRE DES FÉLINS


(84)Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

(30)Priority: 22.02.2007 US 891171 P

(43)Date of publication of application:
02.12.2009 Bulletin 2009/49

(73)Proprietor: Hill's Pet Nutrition, Inc.
Topeka, KS 66605 (US)

(72)Inventors:
  • YAMKA, Ryan Michael
    Topeka, KS 66610 (US)
  • FRIESEN, Kim Gene
    Topeka, KS 66614 (US)
  • ZICKER, Steven Curtis
    Lawrence, KS 66049 (US)

(74)Representative: Daniels, Jeffrey Nicholas 
Page White & Farrer Bedford House John Street
London WC1N 2BF
London WC1N 2BF (GB)


(56)References cited: : 
WO-A-00/44375
WO-A-2004/080196
WO-A-2006/074089
WO-A-00/72698
WO-A-2005/006877
GB-A- 2 367 489
  
      
    Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).


    Description

    FIELD OF THE INVENTION



    [0001] The present invention relates to compositions and methods for enhancing the immune system of mammals.

    BACKGROUND OF THE INVENTION



    [0002] Commercially available pet foods, e.g., cat food, include compositions specially formulated to address many different nutritional needs. These include, for example, formulations designed for different breed types, sizes and body conditions. They also include formulations designed to address the nutritional needs of animals in the different stages of their life cycle. Despite the availability of such pet food formulations, however, there is a need to develop formulations and methods to address other aspects of an animal's health.

    [0003] Pets are constantly exposed to pathogens. Failure to respond to those pathogens may result in chronic illness and death. Response to pathogens may be inhibited by an animal's diet, preventing an adequate immune response. Thus compositions and methods are needed to enhance an animal's immune response against challenges by pathogens.

    [0004] The incidence of many infectious diseases in cats has been reduced greatly through the use of vaccines. Vaccines are not 100% effective, as some cats vaccinated against a particular disease will not be immunized against that disease. Thus there is a need to develop compositions and methods to increase the efficacy of vaccines, and to enhance a feline's immune response when challenged with an antigen.

    [0005] WO00/44375 discloses a method for increasing the plasma vitamin E level in a cat or dog, the method comprising the step of administering to said cat or dog, an amount of Vitamin E sufficient to increase the plasma vitamin E level.

    [0006] GB2367489 discloses compositions and methods for increasing the antioxidant status of companion animals, such as cats and dogs.

    SUMMARY OF THE INVENTION



    [0007] In certain aspects, the present invention relates to compositions that are useful to enhance the immune system or immune response of an animal when challenged with an antigen. Specifically, the present invention provides a pet food composition for use in enhancing the immune response to an antigen of a feline, according to claim 1. The present invention is defined by the claims. Subject matter outside the scope of the claims is provided for information only.

    [0008] The present invention uses Composition 1.0, a pet food composition useful to enhance immune function in an animal comprising:

    200 to 1200 IU/kg vitamin E;

    50 to 500 ppm vitamin C;

    0.1% to 0.7% EPA; and

    0.1% to 0.5% DHA.



    [0009] The present invention also uses the following compositions:

    1.1 Composition 1.0 comprising 0.1% to 0.5% DHA, e.g., about 0.2% to about 0.4%, e.g., about 0.2, about 0.3%, or about 0.4%;

    1.2 Composition 1.0 or 1.1 comprising 200 to 1200 IU/kg vitamin E, e.g., about 500 IU/kg to about 1100 IU/kg, about 700, about 800, about 900, or about 1000 IU/kg;

    1.3 Any of the preceding compositions comprising 50 to 500 ppm vitamin C, e.g., about 100 to about 400 ppm Vitamin C, e.g., about 150, about 175, about 200, or about 225 ppm;

    1.4 Any of the preceding compositions comprising about 100 ppm to about 500 ppm carnitine, e.g., about 200, about 300, or about 400 ppm;

    1.5 Any of the preceding compositions comprising about 2.5 g/1000 kcal to about 7 g/1000 kcal lysine;

    1.6 Any of the preceding compositions comprising about 2400 ppm to about 7500 ppm choline, e.g., about 3000, about 4000, about 4500, about 4600, about 4625, about 4650, about 4700, about 5000, or about 6000 ppm;

    1.7 Any of the preceding compositions comprising 0.1 % to about 0.6 % EPA, e.g., about 0.2%, about 0.3%, about 0.4%, or about 0.5%;

    1.8 Any of the preceding compositions comprising about 50 ppm to about 200 ppm manganese;

    1.9 Any of the preceding compositions comprising about 0.5% to about 1.6% methionine, e.g., 0.8% to about 1.6% methionine, e.g., about 1.3 or about 1.4% methionine.

    1.10 Any of the preceding compositions further comprising:

    0 to about 90% by weight of carbohydrates;

    about 5% to about 70% by weight of protein;

    about 2% to about 50% by weight of fat;

    about 0.1% to about 20% by weight of total dietary fiber;

    0 to about 15%, preferably about 2% to about 8%, by weight of vitamins, minerals, and other nutrients, in varying percentages which support the nutritional needs of the animal.

    1.11 Composition 1.10 comprising about 5% to about 55%, by weight of carbohydrates;

    1.12 Composition 1.10 or 1.11 comprising about 20% to about 60%, by weight of protein, e.g., about 30 to about 55%;

    1.13 Any one of compositions 1.10 - 1.12 comprising about 5% to about 40 %, by weight of fat, e.g., at least about 8% or about 9% to about 40% fat;

    1.14 Any one of compositions 1.10 - 1.13 comprising about 1% to about 11%, by weight of total dietary fiber;

    1.15 Any of the preceding compositions comprising about 1000 to about 4000 ppm taurine;

    1.16 Any of the preceding compositions comprising about 0.5% to about 6 % linoleic acid, e.g., about 2.5% to about 5%;

    1.17 Any of the preceding compositions comprising about 1 % to about 3% total n-3 fatty acids, e.g., about 1.3%, about 1.4%, about 1.5%, or about 1.6%.

    1.18 Any of the preceding compositions comprising about 1% to about 6% total n-6 fatty acids, e.g., about 3% to about 5%, about 3.5%, or about 4%.



    [0010] The compositions of the present invention may be a wet, dry, or semi-dry food.

    [0011] Also described is Method 2.0 (not part of the invention), a method to enhance the neurologic development of a feline comprising administering to the feline any one of compositions 1.0 -1.18.

    [0012] The present disclosure also provides the following methods:

    2.1 The feline may be a kitten

    2.2 The feline is born of a queen fed any one of compositions 1.0 - 1.18 during pregnancy.

    2.3 The queen may be fed any one of compositions 1.0 -1.18 prior to pregnancy.

    2.4 The queen may be fed any one of compositions 1.0 - 1.18 for a majority of the pregnancy duration.

    2.5 The queen may be fed compositions consisting essentially of any one of compositions 1.0 - 1.18 prior to and during pregnancy.

    2.6 The kitten may be fed any one of compositions 1.0 - 1.18 prior to weaning, e.g., while still nursing.

    2.7 The kitten may be fed any one of compositions 1.0 - 1.18 post weaning.

    2.8 The kitten may be fed food compositions consisting of any one of compositions 1.0 -1.18.



    [0013] Other features and advantages of the present invention will be understood by reference to the detailed description of the examples that follow.

    DETAILED DESCRIPTION OF THE INVENTION



    [0014] Unless defined otherwise, all technical and scientific terms used herein have the same meanings as commonly understood by one of ordinary skill in the art to which this invention belongs. In the event of a conflict in a definition in the present disclosure and that of a cited reference, the present disclosure controls.

    [0015] As used herein and in the appended claims, the singular forms "a", "an", and "the" include plural reference unless the context clearly dictates otherwise.

    [0016] The present disclosure relates to felines, more preferably a feline companion animal. The term "companion animal" refers to any animal that lives in close association with humans and includes, but is not limited to, canines and felines of any breed. It is contemplated herein, however, that any animal whose diet may be controlled by humans may benefit from feeding the formulations disclosed herein. Preferably, the feline is either a kitten, or adult cat.

    [0017] As used herein, "an amount effective to" or "an effective amount" to achieve a particular result, and like terms, refer to that amount of a compound, material or composition as described herein that may be effective to achieve a particularly desired biological result. As contemplated herein, such results include, for example, enhancement of neurologic development, bone and joint health, immune function and/or promotion of a healthy body composition of an animal, either while developing in utero and/or during its growth stage after birth, e.g., up to 6 months, 9 months, 12 months, or 15 months after birth. Such effective activity may be achieved, for example, by administration of compositions of the present invention to the dam of said animal while the animal is in utero or nursing, as well as by direct administration to the animal during its growth stage.

    [0018] As used herein, the "enhancement" of a particular biological process or body condition in a growing animal such as described herein refers to an improvement in the biological process or body condition of a growing animal compared to a control animal. Improvement in such a process or condition may be determined by one of skill in the art. Immune function may be determined in an animal by assaying antibody titers in response to vaccination and comparing to control animals, where an increase in antibody titer compared to controls is indicative of an enhancement in adaptive immune function.

    [0019] As used herein, "enhancement of the development of a growing animal" or "enhanced growth" and like terms refer to an overall improvement in one or more biological processes and/or the body condition of a growing animal, including but not limited to, biological processes central to the growth and development of an organism, including, but not limited to, the biological processes described herein, e.g., bone and joint health, neurologic and immune system development and body weight gain (e.g., increase in lean muscle mass instead of adipose tissue).

    [0020] The "growth" life stage of an animal refers to the period from birth or weaning (approx 8 weeks of age) to about 1 year of age.

    [0021] As used herein, the term "kitten" refers to an immature feline, typically between the ages of birth and 12 months.

    [0022] "Essential amino acids" as used herein refers to those amino acids that cannot be synthesized de novo by an organism and thus must be supplied in the diet. It is understood by one of skill in the art that the essential amino acids vary from species to species, depending upon the organism's metabolism. For example, it is generally understood that the essential amino acids for dogs and cats (and humans), are phenylalanine, leucine, methionine, lysine, isoleucine, valine, threonine, tryptophan, histidine and arginine. In addition, taurine, while technically not an amino acid but a derivative of cysteine, is an essential for cats. A balanced diet can provide all the essential amino acids, however, there are certain essential amino acids that are more critical, as a diet deficient in one of them will limit the usefulness of the others, even if the other essential amino acids are present in sufficient quantities.

    [0023] As understood by one of skill in the art, a "limiting amino acid" refers to an amino acid which if present in insufficient quantities in a diet, results in the limitation in usefulness of other essential amino acids, even if the other essential amino acids are present in otherwise large enough quantities. Lysine is the limiting essential amino acid in the compositions disclosed herein. Thus, the remaining essential amino acids are quantitatively formulated or "balanced" in relationship to the amount of lysine determined critical to effect the desired biological result. As used herein, "balanced amino acids" refers to the relationship of the essential amino acid lysine to energy to assure optimal animal growth and development.

    [0024] "Essential nutrients" as used herein refers to nutrients required for normal body functioning that cannot be synthesized by the body. Categories of essential nutrient include vitamin dietary minerals, fatty acid, and amino acid. It is understood by one of skill in the art that the nutrients deemed essential varies from species to species, depending upon the organism's metabolism. For example, essential nutrients for dogs and cats include Vitamins A, D, E, K, B1, B6 B12, riboflavin, niacin, pantothenic acid, folic acid, calcium, phosphorous, magnesium, sodium, potassium, chlorine, iron, copper, zinc, manganese, selenium and iodine. Choline, generally regarded as a B complex vitamin, may be included among the semi-essential nutrients.

    [0025] Carnitine, also known as L-carnitine, (levocarnitine) is a quaternary ammonium compound synthesized from the amino acids lysine and methionine and is responsible for the transport of fatty acids from the cytosol into the mitochondria.

    [0026] The immune response of various animals, such as mammals and felines is well known in the art. An immune response is generally the mechanisms within an organism that protects against disease, e.g., by identifying and killing pathogens and tumor cells. Immune responses may be classified into various response types, e.g., humoral or cell-mediated response, and innate and adaptive response. Thus, immune responses may be humoral innate responses, cell-mediated innate response, cell-mediated adaptive response, and cell-mediated adaptive response, and combinations thereof. It is well known that these responses may occur concurrently when an animal is challenged, e.g., with a pathogen. For example, the complement cascade of the innate humoral immune response may recruit T and B cells, which form the basis of cell-mediated adaptive immunity, and complement may be recruited by the adaptive immune system.

    [0027] Without being limited to any theories or particular modes of action, the present invention is based on the surprising discovery that the diet of an animal may enhance the animal's immune response to antigens, e.g., pathogens or vaccines. Addition of certain ingredients to pet food compositions and administration of these compositions to animals can enhance the immune system of a growing animal. Additionally, the addition of certain ingredients to pet food compositions and administration of these compositions to dams during pregnancy can enhance the immune system of the offspring thereof.

    [0028] The present invention contemplates that the immune response of a feline may be enhanced or augmented against any number of antigens, including pathogens and vaccines. Felines may be vaccinated against any number of diseases or conditions, including feline panleukopenia, feline herpesvirus-1, feline calicivirus, feline leukemia virus, rabies, chlamydiosis, feline infectious peritonitis, bordetella bronchiseptica infection, dermatophytosis, giardiasis, etc. Thus the present invention contemplates a composition for use in establishing enhanced adaptive humoral immunity, e.g., against a pathogen comprising the methods of the present invention, and immunizing an animal against a pathogen with a vaccine for the pathogen. Enhanced immune function in an animal may be characterized as an immune response which demonstrates greater antibody or cell-mediated response upon antigen challenge than control animals.

    [0029] As contemplated herein, the compositions for use as in the present invention comprise nutritionally complete and balanced animal feed compositions. Such compositions include, among other nutrients and ingredients, recommended healthful amounts of protein, carbohydrate and fat. "Nutritionally complete and balanced animal feed compositions", as well as nutrients and ingredients suitable for animal feed compositions, and recommended amounts thereof, are familiar to one of skill in the art (see, for example, National Research Council, 2006 Nutritional Requirements for Dogs and Cats, National Academy Press, Washington D.C. or the Official Publication of the Association of American Feed Control Officials, Inc. Nutrient Requirements for Dogs and Cats 2006).

    [0030] It is contemplated herein that the compositions disclosed herein may also comprise antioxidants, additives, stabilizers, thickeners, flavorants, palatability enhancers and colorants in amounts and combinations familiar to one of skill in the art. "Antioxidants" refers to a substance that is capable of reacting with or decreasing the production of free radicals and neutralizing them. Examples include, but are not limited to, beta-carotene, selenium, coenzyme Q10 (ubiquinone), lutein, tocotrienols, soy isoflavones, S-adenosylmethionine, glutathione, taurine, N-acetylcysteine, vitamin E, vitamin D, vitamin C, flavanoids, anthocyanindins, and lipoic acid.

    [0031] While foods of any consistency or moisture content are contemplated, preferably the compositions for use as in the present invention may be, for example, a wet, semi-dry or dry animal food composition. "Wet" food refers to food which is sold in cans or foil bags and has a moisture content of about 70 to about a 90%. "Dry" food refers to compositions with about 5 to about 15% moisture content and is often manufactured in the form of small bits or kibbles. Semi-dry compositions refer to compositions having about 15% to about 70% moisture. Also contemplated herein are compositions of intermediate moisture consistency and those that may comprise components of various consistency as well as components that may include more than one consistency, for example, soft, chewy meat-like particles as well as kibble having an outer cereal component and an inner cream component as described in, e.g., US Patent 6,517,877.

    [0032] The following examples further illustrate the present invention and are not intended to limit the invention. As used throughout, ranges are used as shorthand for describing each and every value that is within the range. Any value within the range can be selected as the terminus of the range. It is understood that when formulations are described, they may be described in terms of their ingredients, as is common in the art, notwithstanding that these ingredients may react with one another in the actual formulation as it is made, stored and used, and such products are intended to be covered by the formulations described.

    [0033] The following examples further describe and demonstrate illustrative embodiments within the scope of the present invention. The examples are given solely for illustration and are not to be construed as limitations of this invention.

    Example 1



    [0034] Formulations to enhance the development of growing animal are disclosed hereinbelow. These compositions are developed taking into account the "ideal protein concept" (Baker and Czarnecki-Maulden, 1991 Annu. Rev. Nutr. 11:239-63).

    [0035] Foods are developed for the "growth" life stage. These foods include formulations for canine growth and feline growth. The minimum nutrient recommendations for these foods, as well as the targeted values for a prototype food, are listed below in Table 1.
    Table 1: Key Nutrients for Kitten Formula
    NutrientTargetMinimumMaximum
    Protein, % 45.5 30 55
    Methionine, % 1.4 0.8 1.5
    Manganese, ppm 90 50 200
    DHA, % 0.21 0.1 0.5
    EPA, % 0.31 0.1 0.7
    Choline, ppm 4880 2500 7500
    Taurine, ppm 2380 1000 4000
    Linoleic acid, % 3.8 2.5 6
    Total n-3 fatty acids, % 1.35 1 3
    Vitamin E, IU/kg 900 200 1200
    Vitamin C, ppm 90 50 500
    Lysine, g/1000 kcal 4 2.5 7

    Example 2



    [0036] Four foods are used for the study, experimental Formulation X, Commercial A, Commercial A1, and Commercial B. The composition of the foods is presented in Table 2. Commercial A, A1, and B foods are available from commercial sources. Commercial A and A1 are the same brand of food, but produced in different lots.
    Table 2 Analyzed nutrients of foods fed to queens and kittens
    NutrientFormula XCommercial ACommercial A1Commercial B
    Crude Protein, % 41.63 41.2 36.09 35.47
    Fat, % 23.15 14.47 12.43 22.94
    Ca, % 1.23 1.12 1.50 1.06
    P, % 1.11 1.11 1.19 0.96
    DHA, % 0.22 0.06 0.04 <0.01
    EPA, % 0.32 0.06 0.04 <0.01
    Linoleic Acid, % 3.79 1.59 1.96 1.37
    Total n-3 fatty acids, % 1.47 0.34 0.25 0.53
    Total n-6 fatty acids, % 3.86 1.88 1.91 1.44
    Taurine, % 0.24 0.17 0.23 0.20
    Methionine, % 1.3 0.76 0.62 0.99
    Cystine, % 0.49 0.51 0.44 0.35
    Manganese, ppm 78 63 77 56
    Vitamin E, IU/kg 914 35 76 138
    Vitamin C, ppm 183 -- -- --
    Choline, ppm 4624 3010 2807 3331


    [0037] 19 queens are fed Formulation X, or Commercial A for at least 2 weeks prior to conception. Queens are maintained in group lodging until they are confirmed pregnant via palpation, and are then moved to maternity lodging. 32 kittens are produced from queens fed Commercial A, and 16 kittens are produced from queens fed Formulation X. Following birth of kittens, the kittens from queens are kept on same foods until the kittens are weaned.

    [0038] Following weaning, the 32 kittens produced from queens fed Commercial A were divided as follows: 16 kittens are fed Commercial A1; and 16 kittens are fed Commercial B. Following weaning, the 16 kittens produced from the queens fed Formulation X are maintained on Formulation X.

    [0039] The 48 kittens are vaccinated against rabies, and anti-rabies antibody titers were determined prior to vaccination, and at 1, 2, 4, 8 and 16 weeks following vaccination.

    [0040] Results are presented in Table 3. Kittens from queens fed Formula X and continued to feed on Formula X have significantly improved immune response, as measured by increased antibody titer to the rabies vaccination. The antibody titer in kittens is significantly increased when Formula X is fed to queens during gestation and lactation, and to the kittens after weaning during growth.
    Table 3-Mean antibody titer of kittens in response to rabies vaccination
     Pre-vaccination1 week2 weeks4 weeks8 weeks16 weeks
    Commercial A dams- Commercial A1 kittens 0.1 0.1 22.0 43.3 47.5 25.0
    Commercial A dams-Commercial B kittens 0.1 0.2 23.4 47.0 52.8 12.5
    Formula X dams-Formula X kittens 0.1 0.2 26.4 62.4 63.9 37.2



    Claims

    1. A pet food composition for use in enhancing the immune response to an antigen of a feline, wherein the feline is born from a queen fed the composition during pregnancy, which composition comprises:

    200 to 1200 IU/kg vitamin E;

    50 to 500 ppm vitamin C;

    0.1% to 0.7% EPA; and

    0.1% to 0.5% DHA;
    wherein the queen is also fed the composition prior to pregnancy;
    wherein the kitten is also fed the composition prior to weaning and
    post weaning.


     
    2. The composition of claim 1 for the use of claim 1 comprising 0.2% to 0.4% DHA, and/or 200 to 1200 IU/kg vitamin E, and/or 50 to 500 ppm vitamin C, and/or 100 ppm to 500 ppm carnitine, and/or 2400 ppm to 7500 ppm choline, and/or 0.1 % to 0.6 % EPA, and/or 50 ppm to 200 ppm manganese.
     
    3. A composition according to claim 1 or claim 2 for the use of claim 1 or claim 2 comprising 0.5% to 1.6% methionine.
     
    4. A composition according to any preceding claim for the use of according to any preceding claim further comprising:

    0 to 90% by weight of carbohydrates;

    5% to 70% by weight of protein;

    2% to 50% by weight of fat;

    0.1 % to 20% by weight of total dietary fiber;

    0 to 15% by weight of vitamins, minerals, and other nutrients, in varying percentages which support the nutritional needs of the animal.


     
    5. The composition of any preceding claim for the use of any preceding claim
    wherein the feline is a kitten.
     
    6. The composition of any preceding claim for the use of any preceding claim
    wherein the immune response is a humoral immune response.
     
    7. The composition of claim 6 for the use of claim 6 wherein the immune response is an adaptive humoral immune response.
     
    8. The composition of claim 7 for the use of claim 7 wherein the adaptive humoral immune response includes the production and release of antibodies against the antigen.
     
    9. The composition of any preceding claim for the use of any preceding claim
    wherein the antigen is presented in a vaccine.
     
    10. The composition of claim 9 for the use of claim 9 wherein the vaccine is selected from feline panleukopenia, feline herpesvirus-1, feline calicivirus, feline leukemia virus, rabies, chlamydiosis, feline infectious peritonitis, bordetella bronchiseptica infection, dermatophytosis, and giardiasis.
     


    Ansprüche

    1. Heimtierfutter-Zusammensetzung zur Verwendung bei der Verstärkung der Immunantwort auf ein Antigen bei einer Katze, wobei die Katze von einer Kätzin geboren wird, der die Zusammensetzung während der Trächtigkeit gefüttert wird, wobei die Zusammensetzung Folgendes enthält:

    200 bis 1200 IE/kg Vitamin E;

    50 bis 500 ppm Vitamin C;

    0,1 bis 0,7 % EPA und

    0,1 bis 0,5 % DHA;
    wobei der Kätzin die Zusammensetzung auch vor der Trächtigkeit gefüttert wird; wobei dem Katzenjungen die Zusammensetzung auch vor dem Absetzen und nach dem Absetzen gefüttert wird.


     
    2. Zusammensetzung nach Anspruch 1 zur Verwendung nach Anspruch 1, enthaltend 0,2 % bis 0,4 % DHA und/oder 200 bis 1200 IE/kg Vitamin E und/oder 50 ppm bis 500 ppm Vitamin C und/oder 100 ppm bis 500 ppm Carnitin und/oder 2400 ppm bis 7500 ppm Cholin und/oder 0,1 % bis 0,6 % EPA und oder 50 ppm bis 200 ppm Mangan.
     
    3. Zusammensetzung nach Anspruch 1 oder Anspruch 2 zur Verwendung nach Anspruch 1 oder Anspruch 2, enthaltend 0,5 % bis 1,6 % Methionin.
     
    4. Zusammensetzung nach einem der vorangehenden Ansprüche zur Verwendung nach einem der vorangehenden Ansprüche, die ferner Folgendes enthält:

    0 bis 90 Gew.-% Kohlenhydrate;

    5 bis 70 Gew.-% Protein;

    2 bis 50 Gew.-% Fett;

    0,1 bis 20 Gew.-% Gesamtballaststoffe;

    0 bis 15 Gew.-% Vitamine, Mineralien und andere Nährstoffe in verschiedenen Prozentanteilen, welche den Ernährungsbedarf des Tieres unterstützen.


     
    5. Zusammensetzung nach einem der vorangehenden Ansprüche zur Verwendung nach einem der vorangehenden Ansprüche, wobei die Katze ein Katzenjunges ist.
     
    6. Zusammensetzung nach einem der vorangehenden Ansprüche zur Verwendung nach einem der vorangehenden Ansprüche, wobei die Immunantwort eine humorale Immunantwort ist.
     
    7. Zusammensetzung nach Anspruch 6 zur Verwendung nach Anspruch 6, wobei die Immunantwort eine adaptive humorale Immunantwort ist.
     
    8. Zusammensetzung nach Anspruch 7 zur Verwendung nach Anspruch 7, wobei die adaptive humorale Immunantwort die Bildung und Freisetzung von Antikörpern gegen das Antigen einschließt.
     
    9. Zusammensetzung nach einem der vorangehenden Ansprüche zur Verwendung nach einem der vorangehenden Ansprüche, wobei das Antigen in einem Impfstoff präsentiert wird.
     
    10. Zusammensetzung nach Anspruch 9 zur Verwendung nach Anspruch 9, wobei der Impfstoff ausgewählt ist aus der felinen Panleukopenie, dem felinen Herpesvirus-1, dem felinen Calicivirus, dem felinen Leukämievirus, der Rabies, der Chlamydiose, der felinen infektiösen Peritonitis, der Bordetella-bronchiseptica-Infektion, der Dermatophytose und der Giardiasis.
     


    Revendications

    1. Composition alimentaire pour animaux familiers pour une utilisation dans le renforcement de la réponse immunitaire à un antigène chez un félin, le félin étant né d'une mère nourrie avec la composition pendant la gestation, ladite composition comprenant :

    de 200 à 1 200 Ul/kg de vitamine E ;

    de 50 à 500 ppm de vitamine C ;

    de 0,1 % à 0,7 % d'EPA; et

    de 0,1% à 0,5% de DHA ;

    la mère étant également nourrie avec la composition avant la gestation ;

    le chaton étant également nourri avec la composition avant le sevrage et après le sevrage.


     
    2. Composition de la revendication 1 pour l'utilisation de la revendication 1, qui comprend de 0,2 % à 0,4 % de DHA et/ou de 200 à 1 200 Ul/kg de vitamine E et/ou de 50 à 500 ppm de vitamine C et/ ou de 100 ppm à 500 ppm de carnitine et/ou de 2 400 ppm à 7 500 ppm de choline et/ou de 0,1 % à 0.6 % d'EPA et/ou de 50 ppm à 200 ppm de manganèse.
     
    3. Composition selon la revendication 1 ou la revendication 2 pour l'utilisation de la revendication 1 ou de la revendication 2, qui comprend de 0,5 % à 1,6 % de méthionine.
     
    4. Composition selon l'une quelconque des revendications précédentes pour l'utilisation de l'une quelconque des revendications précédentes, qui comprend en outre :

    de 0 à 90 % en poids d'hydrates de carbone ;

    de 5 % à 70 % en poids de protéines ;

    de 2 % à 50 % en poids de matières grasses ;

    de 0,1 % à 20 % en poids de fibres alimentaires totales ;

    de 0 à 15 % en poids de vitamines, de substances minérales et d'autres nutriments incorporés à des pourcentages variables à même de satisfaire les besoins nutritionnels de l'animal.


     
    5. Composition de l'une quelconque des revendications précédentes pour l'utilisation de l'une quelconque des revendications précédentes, le félin étant un chaton.
     
    6. Composition de l'une quelconque des revendications précédentes pour l'utilisation de l'une quelconque des revendications précédentes, la réponse immunitaire étant une réponse immunitaire à médiation humorale.
     
    7. Composition de la revendication 6 pour l'utilisation de la revendication 6, la réponse immunitaire étant une réponse immunitaire adaptative à médiation humorale.
     
    8. Composition de la revendication 7 pour l'utilisation de la revendication 7, la réponse immunitaire adaptative à médiation humorale incluant la production et la libération d'anticorps dirigés contre l'antigène.
     
    9. Composition de l'une quelconque des revendications précédentes pour l'utilisation de l'une quelconque des revendications précédentes, l'antigène étant présenté dans un vaccin.
     
    10. Composition de la revendication 9 pour l'utilisation de la revendication 9, le vaccin étant sélectionné parmi les suivants : parvovirus de la panleucopénie féline, herpèsvirus-1 félin, calicivirus félin, virus de la leucémie féline, rage, chlamydiose, péritonite virale du chat, infection à Bordetella bronchiseptica, dermatophytose et giardiase.
     






    Cited references

    REFERENCES CITED IN THE DESCRIPTION



    This list of references cited by the applicant is for the reader's convenience only. It does not form part of the European patent document. Even though great care has been taken in compiling the references, errors or omissions cannot be excluded and the EPO disclaims all liability in this regard.

    Patent documents cited in the description




    Non-patent literature cited in the description