Odor composition for poultry, odorant for poultry, method for preparing same, and use thereof

Abstract

Provided is an odor composition for poultry, comprising the following components in percentage by mass: 1%-50% of linoleic acid or an ester compound thereof, and 50%-99% of citronella oil. The odor composition for poultry can relieve the stress response of poultry.

Description

A poultry odor composition and poultry odorant, their preparation method and application

[0001] Relevant publicly available cross-references

[0002] This disclosure claims priority to Chinese Patent 2024109319092, filed on July 12, 2024, entitled “A poultry odor composition and poultry odorant and its preparation method and application”, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to the field of veterinary drug technology, and in particular to a poultry odor composition and poultry odorant, their preparation method and application. Background Technology

[0004] During poultry farming, poultry are highly susceptible to various stressors. Stress stimuli such as noise, temperature changes, light changes, and human movement can all lead to negative effects in poultry, such as decreased feed intake, decreased daily weight gain, decreased egg production, increased mortality, feather pecking, vent pecking, or flock scattering, which seriously affect the profitability of poultry farming.

[0005] Linoleic acid or its esters are important unsaturated fatty acid methyl esters with bioactivities such as antioxidant, anti-inflammatory and immunomodulatory effects.

[0006] Currently, there are no specific odorant products on the market that effectively address stress responses in poultry. Therefore, developing an odorant that can effectively alleviate poultry stress responses and improve farming efficiency has significant practical importance and application value. Summary of the Invention

[0007] In view of the shortcomings of the prior art, the purpose of this disclosure is to provide a poultry odor composition and poultry odorant, a method for preparing the same, and their application, so as to effectively improve the stress response of poultry.

[0008] In a first aspect, embodiments of this disclosure provide a poultry scent composition comprising the following components by weight percentage: 1% to 50% linoleic acid or its esters, and 50% to 99% citronella oil.

[0009] This disclosure describes how adding a suitable percentage by weight of citronella oil to linoleic acid or its esters can effectively alleviate stress responses in poultry, thereby improving poultry farming efficiency.

[0010] In some embodiments of this disclosure, the poultry flavoring agent comprises the following components by weight percentage: 5% to 35% linoleic acid or its esters, and 65% to 95% citronella oil.

[0011] This disclosure further enhances the anti-stress effect by adjusting the lemongrass oil to a more suitable mass percentage.

[0012] In some embodiments of this disclosure, the linoleic acid ester compounds include any one of methyl linoleate, ethyl linoleate, propyl linoleate, butyl linoleate, pentyl linoleate, hexyl linoleate, heptyl linoleate, octyl linoleate, nonyl linoleate, and decyl linoleate.

[0013] This disclosure utilizes linoleic acid or any of the aforementioned linoleic acid esters in synergy with citronella oil to effectively alleviate stress responses in poultry.

[0014] In some embodiments of this disclosure, the poultry scent composition comprises the following components in weight percentages: 50% methyl linoleate and 50% citronella oil.

[0015] In some embodiments of this disclosure, the poultry scent composition comprises the following components in weight percentages: methyl linoleate 35% and citronella oil 65%.

[0016] In some embodiments of this disclosure, the poultry scent composition comprises the following components in weight percentages: 15% methyl linoleate and 85% citronella oil.

[0017] In some embodiments of this disclosure, the poultry scent composition comprises the following components in weight percentages: 5% methyl linoleate and 95% citronella oil.

[0018] In some embodiments of this disclosure, the poultry scent composition comprises the following components in weight percentages: 10%–20% linoleic acid or its esters, 65%–85% citronellol oil, and 5%–15% methyl oleate.

[0019] In some embodiments of this disclosure, the poultry scent composition comprises the following components in weight percentages: 13% methyl linoleate, 75% citronella oil, and 12% methyl oleate.

[0020] This disclosure adds methyl oleate to linoleic acid or its esters and citronella oil, which works synergistically with linoleic acid or its esters and citronella oil to effectively alleviate stress responses in poultry.

[0021] Secondly, embodiments of this disclosure provide a poultry odorant, including the poultry odor composition provided in the first aspect.

[0022] The poultry odor composition provided in the first aspect of this disclosure can effectively alleviate stress response in poultry, and poultry odorants including the poultry odor composition can also effectively alleviate stress response in poultry.

[0023] In some embodiments of this disclosure, the poultry odorant composition in the poultry odorant is 0.1% to 50% by mass.

[0024] This disclosure ensures the anti-stress effect of poultry odorants by setting an appropriate concentration of poultry odor composition in the poultry odorant.

[0025] Thirdly, embodiments of this disclosure provide a method for preparing a poultry odorant as provided in the second aspect, comprising: mixing linoleic acid or its ester compounds and citronella oil in a mass percentage to form a poultry odorant composition; and then dissolving the poultry odorant composition in a solvent in a mass percentage to obtain a poultry odorant.

[0026] The present invention discloses a stable and uniform poultry odorant prepared by the above preparation method, which can effectively alleviate the stress response of poultry.

[0027] In some embodiments of this disclosure, linoleic acid and its ester compounds, along with citronella oil, are mixed in a mass percentage to form a poultry scent composition, which is then filtered through a 0.4 μm to 0.5 μm filter membrane.

[0028] This disclosure provides a purer poultry odorant by filtering the mixed poultry odorant composition through a filter membrane with a specific pore size, thus avoiding the influence of other impurities on the poultry odorant.

[0029] Fourthly, embodiments of this disclosure provide the use of the poultry odorant as provided in the second aspect in the preparation of formulations to alleviate stress responses in poultry.

[0030] The poultry odorant provided in the second aspect of this disclosure has an anti-stress effect and can effectively alleviate the stress response of poultry, that is, it can be used to prepare preparations to alleviate the stress response of poultry.

[0031] In some embodiments of this disclosure, the formulation includes any one of cream formulation, spray formulation, aerosol formulation, and pourable formulation.

[0032] This disclosure allows for the preparation of formulations in different forms, which can be applied to various scenarios. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions in the embodiments of this disclosure will be clearly and completely described below. Where specific conditions are not specified in the embodiments, conventional conditions or conditions recommended by the manufacturer shall apply. Reagents or instruments whose manufacturers are not specified are all conventional products that can be purchased commercially.

[0034] This disclosure provides a poultry scent composition comprising the following components by weight percentage: 1% to 50% linoleic acid or its esters, and 50% to 99% citronella oil.

[0035] Adding an appropriate percentage of citronella oil to linoleic acid or its esters can effectively alleviate stress in poultry, thereby improving poultry farming efficiency.

[0036] In some embodiments of this disclosure, the poultry odorant comprises the following components in weight percentages: 5%–35% linoleic acid or its esters, and 65%–95% citronella oil. Exemplarily, the weight percentage of linoleic acid or its esters may be, but is not limited to, 5%, 10%, 15%, 20%, 25%, 30%, or 35%. The weight percentage of citronella oil may be, but is not limited to, 65%, 70%, 75%, 80%, 85%, 90%, or 95%. Further adjusting the weight percentage of citronella oil to a more suitable level can further enhance the anti-stress effect.

[0037] In some embodiments of this disclosure, the linoleic acid esters include any one of methyl linoleate, ethyl linoleate, propyl linoleate, butyl linoleate, pentyl linoleate, hexyl linoleate, heptyl linoleate, octyl linoleate, nonyl linoleate, and decyl linoleate. Using linoleic acid or any of the above-mentioned linoleic acid esters in synergy with citronella oil can effectively alleviate stress responses in poultry.

[0038] Exemplary examples show that the poultry scent composition may include the following components in weight percentages: 50% methyl linoleate and 50% citronella oil; or, the poultry scent composition may include the following components in weight percentages: 35% methyl linoleate and 65% citronella oil; or, the poultry scent composition may include the following components in weight percentages: 15% methyl linoleate and 85% citronella oil; or, the poultry scent composition may include the following components in weight percentages: 5% methyl linoleate and 95% citronella oil. In some embodiments of this disclosure, the poultry scent composition further includes the following components in weight percentages: 10%–20% linoleic acid or its esters, 65%–85% citronella oil, and 5%–15% methyl oleate. Exemplary examples show that the weight percentage of linoleic acid or its esters may be, but is not limited to, 10%, 12%, 15%, 18%, or 20%, etc. The percentage of citronella oil by mass may be, but is not limited to, 65%, 68%, 70%, 72%, 75%, 78%, 80%, 82%, or 85%. The percentage of methyl oleate by mass may be, but is not limited to, 5%, 8%, 10%, 12%, or 15%.

[0039] In some exemplary embodiments, the poultry scent composition may include the following components in weight percentages: 13% methyl linoleate, 75% citronella oil, and 12% methyl oleate.

[0040] Based on linoleic acid or its esters and citronella oil, the addition of methyl oleate, synergistically with linoleic acid or its esters and citronella oil, can also effectively alleviate stress responses in poultry. This disclosure provides a poultry odorant comprising the above-mentioned poultry odor composition. The poultry odor composition can effectively alleviate stress responses in poultry, therefore, poultry odorants comprising this poultry odor composition can also effectively alleviate stress responses in poultry.

[0041] In some embodiments of this disclosure, the mass percentage of the poultry odor composition in the poultry odorant is 0.1% to 50%. As an example, the mass percentage of the poultry odor composition in the poultry odorant may be, but is not limited to, 0.1%, 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, 4%, 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, or 50%. Setting an appropriate concentration of the poultry odor composition in the poultry odorant ensures its anti-stress effect.

[0042] This disclosure provides a method for preparing the above-mentioned poultry odorant, comprising: mixing linoleic acid or its ester compounds and citronella oil in a certain mass percentage to form a poultry odorant composition; filtering the poultry odorant composition through a 0.4μm to 0.5μm filter membrane; and then dissolving the poultry odorant composition in a solvent in a certain mass percentage to obtain the poultry odorant. A stable, uniform, and pure poultry odorant can be prepared, which can effectively alleviate stress responses in poultry.

[0043] This disclosure provides an application of the poultry odorant described above in the preparation of formulations to alleviate poultry stress. The poultry odorant has anti-stress effects and can effectively alleviate stress responses in poultry, thus it can be used in the preparation of formulations to alleviate poultry stress.

[0044] In some embodiments of this disclosure, the formulation includes any one of cream formulation, spray formulation, aerosol formulation, and pourable formulation. Different forms of formulation can be prepared for application in different scenarios.

[0045] The features and performance of this disclosure will be further described in detail below with reference to embodiments.

[0046] Example 1

[0047] This embodiment provides a poultry odorant, the preparation method of which includes: mixing 50% by mass of methyl linoleate and 50% by mass of citronella oil to form a poultry odorant composition; filtering the mixture using a 0.5 μm filter membrane; and then dissolving the poultry odorant composition in a solvent at 3% by mass to obtain a solid paste-like poultry odorant.

[0048] Example 2

[0049] This embodiment provides a poultry odorant, the preparation method of which includes: mixing 35% by mass of methyl linoleate and 65% by mass of citronella oil to form a poultry odorant composition; filtering the mixture using a 0.5μm filter membrane; and then dissolving the poultry odorant composition in a solvent at 3% by mass to obtain a solid paste-like poultry odorant.

[0050] Example 3

[0051] This embodiment provides a poultry odorant, the preparation method of which includes: mixing 15% by mass of methyl linoleate and 85% by mass of citronella oil to form a poultry odorant composition; filtering the mixture using a 0.5μm filter membrane; and then dissolving the poultry odorant composition in a solvent at 3% by mass to obtain a solid paste-like poultry odorant.

[0052] Example 4

[0053] This embodiment provides a poultry odorant, the preparation method of which includes: mixing 5% by mass of methyl linoleate and 95% by mass of citronella oil to form a poultry odorant composition; filtering the mixture using a 0.5μm filter membrane; and then dissolving the poultry odorant composition in a solvent at 3% by mass to obtain a solid paste-like poultry odorant.

[0054] Example 5

[0055] This embodiment provides a poultry odorant, the preparation method of which includes: mixing 13% by mass of methyl linoleate, 75% by mass of citronella oil and 12% by mass of methyl oleate to form a poultry odorant composition; filtering the mixture using a 0.5 μm filter membrane; and then dissolving the poultry odorant composition in a solvent at 3% by mass to obtain a solid paste-like poultry odorant.

[0056] Comparative Example 1

[0057] This comparative example provides a poultry odorant, the preparation method of which includes: filtering methyl linoleate through a 0.5 μm filter membrane, and then dissolving methyl linoleate in a solvent at a mass percentage of 3% to obtain a solid paste-like poultry odorant.

[0058] Comparative Example 2

[0059] This comparative example provides a poultry odorant, the preparation method of which includes: filtering citronella oil through a 0.5μm filter membrane, and then dissolving the citronella oil in a solvent at a mass percentage of 3% to obtain a solid paste-like poultry odorant.

[0060] Comparative Example 3

[0061] This comparative example provides a poultry odorant, the preparation method of which includes: mixing 95% by mass of methyl linoleate and 5% by mass of citronella oil to form a poultry odorant composition; filtering the mixture using a 0.5 μm filter membrane; and then dissolving the poultry odorant composition in a solvent according to the mass percentage to obtain a solid paste-like poultry odorant.

[0062] Table 1 shows the poultry odorants provided in Examples 1-5 and Comparative Examples 1-3. Note: In Table 1, " / " indicates that the component is not included.

[0063] Experimental Example 1

[0064] In this experiment, the poultry odorants provided in Examples 1-5 and Comparative Examples 1-3 were placed in broiler houses for a 4-week trial. During this period, the rearing environment was kept stable, and daily feed intake, daily weight gain, mortality, and flock breakup were recorded. Experimental animals: 180 healthy broilers of similar age and weight were selected and randomly divided into 6 groups of 30 each. They were fed commercially available standard broiler feed. Before the experiment, all broilers were weighed and their initial weight was recorded. After the experiment, all surviving broilers were weighed, and their daily weight gain was calculated. No poultry odorant was placed in the rearing houses of the control group. The experimental results are shown in Table 2.

[0065] Table 2 Broiler Chicken Trial Results

[0066] As shown in Table 2, compared with the control group and comparative examples 1-2, there was no significant improvement in feed intake, daily weight gain and mortality of broilers in comparative examples 1-2, indicating that the use of methyl linoleate or citronella oil alone could not alleviate the stress response of broilers.

[0067] The poultry odorants provided in Examples 1-5 were tested on broilers, resulting in increased feed intake, improved daily weight gain, and reduced mortality and broiler outbreak rates, demonstrating significant improvements in all aspects. This indicates that the appropriate mass percentages of citronella oil and methyl linoleate in the poultry odorants provided in this disclosure synergistically alleviate stress responses in broilers, thereby improving broiler farming efficiency.

[0068] Experimental Example 2

[0069] In this experiment, the poultry odorants provided in Examples 1-5 and Comparative Examples 1-3 were placed in a poultry house and tested on laying hens for 12 weeks. During this period, the rearing environment was kept stable, and daily egg production, average egg weight, and mortality were recorded. Experimental animals: 180 healthy laying hens of similar age and weight were selected and randomly divided into 6 groups of 30 each. They were fed commercially available standard laying hen feed. Before the experiment, all laying hens were weighed and their initial weight was recorded. Eggs were collected daily at regular intervals, and the weight of each egg was measured to calculate the average egg weight. No poultry odorant was placed in the rearing house of the control group. The experimental results are shown in Table 3.

[0070] Table 3. Results of the egg-laying hen trial

[0071] As shown in Table 3, compared with the control group and Comparative Examples 1-2, there was no significant improvement in egg production, average egg weight, and mortality of laying hens in Comparative Examples 1-2, indicating that the use of methyl linoleate or citronella oil alone could not alleviate the stress response of laying hens.

[0072] The poultry odorants provided in Examples 1-5 were tested on laying hens, resulting in increased egg production, increased average egg weight, improved egg quality, and reduced mortality. This indicates that the appropriate mass percentages of citronella oil and methyl linoleate in the poultry odorants provided in this disclosure synergistically alleviate stress responses in laying hens, thereby improving egg quality and increasing the profitability of laying hen farming.

[0073] Experimental Example 3

[0074] In this experiment, the poultry odorants provided in Examples 1-5 and Comparative Examples 1-3 were placed in the duck sheds for a 4-week trial. During this period, the rearing environment was kept stable, and daily feed intake, daily weight gain, and mortality were recorded. Experimental animals: 180 healthy ducks of similar age and weight were selected and randomly divided into 6 groups of 30 each. They were fed commercially available standard duck feed. Before the experiment, all ducks were weighed and their initial weight was recorded. After the experiment, all surviving ducks were weighed, and their daily weight gain was calculated. No poultry odorant was placed in the rearing sheds of the control group. The experimental results are shown in Table 4.

[0075] Table 4. Results of the duck experiment

[0076] As shown in Table 4, compared with the control group and comparative examples 1-2, there was no significant improvement in feed intake, daily weight gain and mortality of ducks in comparative examples 1-2, indicating that the use of methyl linoleate or citronella oil alone could not alleviate the stress response of ducks.

[0077] The poultry odorants provided in Examples 1-5 were tested on ducks, resulting in increased feed intake, improved daily weight gain, and reduced mortality, demonstrating significant improvements in all aspects. This indicates that the appropriate mass percentages of citronella oil and methyl linoleate in the poultry odorants provided in this disclosure synergistically alleviate stress responses in ducks, thereby improving the economic benefits of duck farming.

[0078] Test Example 4

[0079] In this experiment, the poultry odorants provided in Examples 1-5 and Comparative Examples 1-3 were placed in the geese's rearing sheds for 4 weeks. During this period, the rearing environment was kept stable, and daily feed intake, daily weight gain, and mortality were recorded. Experimental animals: 180 healthy geese of similar age and weight were selected and randomly divided into 6 groups of 30 each. They were fed commercially available standard goose feed. Before the experiment, all geese were weighed and their initial weight was recorded. After the experiment, all surviving geese were weighed, and their daily weight gain was calculated. No poultry odorant was placed in the rearing sheds of the control group. The experimental results are shown in Table 5.

[0080] Table 5. Goose Experiment Results

[0081] As shown in Table 5, compared with the control group and comparative examples 1-2, there was no significant improvement in feed intake, daily weight gain and mortality of geese in comparative examples 1-2, indicating that the use of methyl linoleate or citronella oil alone could not alleviate the stress response of geese.

[0082] The poultry odorants provided in Examples 1-5 were tested on geese, resulting in increased feed intake, improved daily weight gain, and reduced mortality, demonstrating significant improvements in all aspects. This indicates that the appropriate mass percentages of citronella oil and methyl linoleate in the poultry odorants provided in this disclosure synergistically alleviate stress responses in geese, thereby improving the economic benefits of goose farming.

[0083] As shown in Tables 2-5, the poultry odorant provided in this disclosure can significantly alleviate stress responses in various types of poultry, thereby improving the breeding efficiency of various types of poultry.

[0084] The embodiments described above are some, but not all, of the embodiments of this disclosure. The detailed description of the embodiments of this disclosure is not intended to limit the scope of the claimed disclosure, but merely to illustrate selected embodiments of the disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure. Industrial applicability

[0085] The poultry odor composition and poultry odorant disclosed herein can effectively alleviate stress responses in poultry, thereby improving the efficiency of poultry farming.

Claims

1. A poultry scent composition, characterized in that, It includes the following components by weight percentage: 1% to 50% linoleic acid or its esters, and 50% to 99% citronella oil.

2. The poultry odorant according to claim 1, characterized in that, The poultry flavoring agent comprises the following components by weight percentage: 5%–35% linoleic acid or its ester compounds, and 65%–95% citronella oil.

3. The poultry odor composition according to claim 2, characterized in that, The linoleic acid esters include any one of methyl linoleate, ethyl linoleate, propyl linoleate, butyl linoleate, pentyl linoleate, hexyl linoleate, heptyl linoleate, octyl linoleate, nonyl linoleate, and decyl linoleate.

4. The poultry scent composition according to any one of claims 1 to 3, characterized in that, The poultry scent composition comprises the following components in weight percentage: 50% methyl linoleate and 50% citronella oil.

5. The poultry scent composition according to any one of claims 1 to 3, characterized in that, The poultry scent composition comprises the following components in weight percentages: methyl linoleate 35% and citronella oil 65%.

6. The poultry scent composition according to any one of claims 1 to 3, characterized in that, The poultry scent composition comprises the following components in weight percentages: 15% methyl linoleate and 85% citronella oil.

7. The poultry scent composition according to any one of claims 1 to 3, characterized in that, The poultry scent composition comprises the following components in weight percentages: 5% methyl linoleate and 95% citronella oil.

8. The poultry scent composition according to any one of claims 1 to 3, characterized in that, The poultry scent composition comprises the following components in weight percentages: 10%–20% linoleic acid or its esters, 65%–85% citronellol oil, and 5%–15% methyl oleate.

9. The poultry scent composition according to claim 8, characterized in that, The poultry scent composition comprises the following components in weight percentages: 13% methyl linoleate, 75% citronella oil, and 12% methyl oleate.

10. A poultry flavoring agent, characterized in that, Includes the poultry odor composition according to any one of claims 1 to 9.

11. The poultry flavoring agent according to claim 10, characterized in that, The poultry odorant composition in the poultry odorant has a mass percentage of 0.1% to 50%.

12. A method for preparing a poultry flavoring agent as described in claim 10 or 11, characterized in that, include: The linoleic acid or its ester compound and the citronella oil are mixed in a certain mass percentage to form a poultry scent composition; The poultry odor composition is then dissolved in a solvent according to a mass percentage to obtain a poultry odorant.

13. The preparation method according to claim 12, characterized in that, The linoleic acid and its ester compounds, along with the citronella oil, are mixed in a certain mass percentage to form a poultry scent composition, which is then filtered through a 0.4 μm to 0.5 μm filter membrane.

14. The use of a poultry odorant as described in claim 12 or 13 in the preparation of a formulation for alleviating stress in poultry.

15. The application according to claim 14, characterized in that, The formulation includes any one of cream formulations, spray formulations, aerosol formulations, and pourable formulations.

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