JP2016214191A - Method for raising poultry - Google Patents
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- JP2016214191A JP2016214191A JP2015105509A JP2015105509A JP2016214191A JP 2016214191 A JP2016214191 A JP 2016214191A JP 2015105509 A JP2015105509 A JP 2015105509A JP 2015105509 A JP2015105509 A JP 2015105509A JP 2016214191 A JP2016214191 A JP 2016214191A
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- 238000000034 method Methods 0.000 title claims abstract description 37
- 244000144977 poultry Species 0.000 title abstract description 19
- HVYWMOMLDIMFJA-DPAQBDIFSA-N cholesterol Chemical compound C1C=C2C[C@@H](O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2 HVYWMOMLDIMFJA-DPAQBDIFSA-N 0.000 claims abstract description 105
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 104
- 235000013601 eggs Nutrition 0.000 claims abstract description 69
- 235000012000 cholesterol Nutrition 0.000 claims abstract description 53
- 238000007872 degassing Methods 0.000 claims abstract description 14
- 241000287828 Gallus gallus Species 0.000 claims description 105
- 235000013330 chicken meat Nutrition 0.000 claims description 105
- 238000009374 poultry farming Methods 0.000 claims description 20
- 210000000991 chicken egg Anatomy 0.000 claims description 8
- 238000009313 farming Methods 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 13
- 239000001301 oxygen Substances 0.000 abstract description 13
- 229910052760 oxygen Inorganic materials 0.000 abstract description 13
- 239000007789 gas Substances 0.000 abstract description 12
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 abstract description 6
- 201000010099 disease Diseases 0.000 abstract description 4
- 206010061216 Infarction Diseases 0.000 abstract description 3
- 230000007574 infarction Effects 0.000 abstract description 3
- 239000008399 tap water Substances 0.000 description 28
- 235000020679 tap water Nutrition 0.000 description 28
- 239000000460 chlorine Substances 0.000 description 15
- 235000013594 poultry meat Nutrition 0.000 description 14
- 239000012510 hollow fiber Substances 0.000 description 13
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 12
- 229910052801 chlorine Inorganic materials 0.000 description 12
- 239000012528 membrane Substances 0.000 description 10
- 238000009395 breeding Methods 0.000 description 9
- 230000001488 breeding effect Effects 0.000 description 9
- 238000005259 measurement Methods 0.000 description 9
- 210000002445 nipple Anatomy 0.000 description 8
- 210000002969 egg yolk Anatomy 0.000 description 7
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 description 6
- 235000013305 food Nutrition 0.000 description 5
- 102000002322 Egg Proteins Human genes 0.000 description 4
- 108010000912 Egg Proteins Proteins 0.000 description 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- 238000004737 colorimetric analysis Methods 0.000 description 4
- 235000013345 egg yolk Nutrition 0.000 description 4
- 108010089254 Cholesterol oxidase Proteins 0.000 description 3
- 238000000585 Mann–Whitney U test Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 102000003992 Peroxidases Human genes 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 239000001055 blue pigment Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000004185 liver Anatomy 0.000 description 2
- 235000013372 meat Nutrition 0.000 description 2
- 108040007629 peroxidase activity proteins Proteins 0.000 description 2
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 2
- 235000019345 sodium thiosulphate Nutrition 0.000 description 2
- HDARHUHTZKLJET-UHFFFAOYSA-M sodium;3-(n-ethyl-3,5-dimethoxyanilino)-2-hydroxypropane-1-sulfonate Chemical compound [Na+].[O-]S(=O)(=O)CC(O)CN(CC)C1=CC(OC)=CC(OC)=C1 HDARHUHTZKLJET-UHFFFAOYSA-M 0.000 description 2
- 239000012086 standard solution Substances 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- 239000008107 starch Substances 0.000 description 2
- 229940088594 vitamin Drugs 0.000 description 2
- 229930003231 vitamin Natural products 0.000 description 2
- 235000013343 vitamin Nutrition 0.000 description 2
- 239000011782 vitamin Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 241000972773 Aulopiformes Species 0.000 description 1
- 101100279436 Caenorhabditis elegans egg-2 gene Proteins 0.000 description 1
- 101100279438 Caenorhabditis elegans egg-3 gene Proteins 0.000 description 1
- 241000282412 Homo Species 0.000 description 1
- 241000237536 Mytilus edulis Species 0.000 description 1
- 241000220010 Rhode Species 0.000 description 1
- 108010055297 Sterol Esterase Proteins 0.000 description 1
- 102000000019 Sterol Esterase Human genes 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 235000015278 beef Nutrition 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000011088 calibration curve Methods 0.000 description 1
- 206010008118 cerebral infarction Diseases 0.000 description 1
- 208000026106 cerebrovascular disease Diseases 0.000 description 1
- 150000001840 cholesterol esters Chemical class 0.000 description 1
- 150000001841 cholesterols Chemical class 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000019688 fish Nutrition 0.000 description 1
- 244000144992 flock Species 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 235000020638 mussel Nutrition 0.000 description 1
- 208000010125 myocardial infarction Diseases 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 235000015277 pork Nutrition 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 235000019515 salmon Nutrition 0.000 description 1
- 239000012488 sample solution Substances 0.000 description 1
- 230000009291 secondary effect Effects 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000012085 test solution Substances 0.000 description 1
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- Meat, Egg Or Seafood Products (AREA)
- Feed For Specific Animals (AREA)
- Fodder In General (AREA)
Abstract
Description
本発明は、鶏卵を産卵する鶏の養鶏方法、特にコレステロールの含有量が抑えられた卵を産卵させることができる養鶏方法に関するものである。 The present invention relates to a method for raising chickens that lay eggs, and particularly to a method for raising eggs that have a reduced cholesterol content.
コレステロールは、人間の生体膜を構成する有機化合物の一つであり、人間が正常な細胞機能を発揮し続けるために必要なものである。このコレステロールは、一部は人間の皮膚や肝臓などで生合成され、残りは食品から吸収される。
例えば、コレステロールが含まれた食品には、鶏、牛、豚などの肉の他、レバーなどの内臓、イクラや筋子のような魚卵などが挙げられるが、特にコレステロールが多い食品として鶏卵（卵黄）がよく知られている。
Cholesterol is one of the organic compounds that make up human biological membranes, and is necessary for humans to continue to function normally. Part of this cholesterol is biosynthesized in human skin and liver, and the rest is absorbed from food.
For example, foods containing cholesterol include chicken, beef, pork, and other meats, organs such as liver, and fish eggs such as salmon roe and mussels. ) Is well known.
ところで、食品から摂取されるコレステロールの量が適量を超えると、心筋梗塞、脳梗塞などの疾患リスクが上昇すると言われている。そのため、梗塞性の疾患を患う者やその虞がある者にとっては、鶏卵は摂取量に注意が必要な食品となっており、気軽に嗜好できる食品ではなかった。
このような鶏卵に含まれる成分を、養鶏方法の面から改善した技術として、特許文献１に示すようなものが知られている。
By the way, it is said that when the amount of cholesterol taken from food exceeds an appropriate amount, the risk of diseases such as myocardial infarction and cerebral infarction increases. Therefore, for those who suffer from or may have an infarcted disease, hen's egg is a food that requires attention to the amount of intake, and is not a food that can be easily tasted.
A technique shown in Patent Document 1 is known as a technique for improving the components contained in such eggs from the aspect of the chicken raising method.
例えば、特許文献１には、養鶏時に鶏に与える鶏用飲用水に中性電解水を用いることで、鶏卵中に含まれるビタミンなどの成分の濃度を増加できる技術が開示されている。 For example, Patent Document 1 discloses a technique that can increase the concentration of components such as vitamins contained in chicken eggs by using neutral electrolyzed water for the drinking water for chickens given to chickens during poultry farming.
ところで、上述した特許文献１は、ビタミンなどの成分の濃度が増加した鶏卵を得るものであり、鶏卵中のコレステロールの濃度を下げられるものではなく、梗塞性の疾患を患う者やその虞がある者にとって鶏卵を気軽に嗜好できるようにするものとはなっていない。
本発明は、上述の問題に鑑みてなされたものであり、鶏からコレステロールの含有量が抑えられた鶏卵を産卵させることができ、梗塞性の疾患を患う者やその虞がある者が気兼ねなく利用可能な鶏卵を生産することができる養鶏方法を提供することを目的とする。
By the way, patent document 1 mentioned above obtains a hen egg in which the concentration of components such as vitamins is increased, and does not lower the concentration of cholesterol in the hen egg. It is not intended to make it easy for people to taste chicken eggs.
The present invention has been made in view of the above-described problems, and can lay eggs from chickens with a reduced cholesterol content, so that those who suffer from or may have an infarcted disease are willing to do so. An object of the present invention is to provide a poultry farming method capable of producing available eggs.
上記課題を解決するため、本発明の養鶏方法は以下の技術的手段を講じている。
即ち、本発明の養鶏方法は、採卵用の鶏に、脱気処理を行った水を与えつつ養鶏を行うことにより、前記鶏の生育を促進すると共にコレステロールの含有量が抑えられた鶏卵を前記鶏から産卵させることを特徴とする。
なお、好ましくは、前記脱気処理を行った水は、脱気後の溶存酸素濃度が０．５ｐｐｍ〜２．５ｐｐｍとされているとよい。
In order to solve the above problems, the poultry raising method of the present invention takes the following technical means.
That is, the poultry farming method of the present invention promotes the growth of the chicken and suppresses the cholesterol content by performing the chicken farming while giving degassed water to the chicken for egg collection. It is characterized by spawning from chickens.
Preferably, the water subjected to the degassing treatment has a dissolved oxygen concentration after degassing of 0.5 ppm to 2.5 ppm.
なお、好ましくは、前記脱気処理を行った水を与えて養鶏を行った期間が１ヶ月以上とされているとよい。
なお、好ましくは、前記鶏卵は、脱気処理を行っていない水を用いて養鶏した鶏が産卵した通常卵に比して、コレステロールの含有量が７％以上低減されているとよい。
In addition, Preferably, the period which performed the chicken raising by giving the water which performed the said deaeration process is good to be 1 month or more.
In addition, Preferably, the content of cholesterol is reduced by 7% or more in the chicken egg as compared with a normal egg laid by a chicken raised using water that has not been degassed.
本発明の養鶏方法によれば、鶏からコレステロールの含有量が抑えられた鶏卵を産卵させることができ、梗塞性の疾患を患う者やその虞がある者が気兼ねなく利用可能な鶏卵を生産することができる。 According to the poultry farming method of the present invention, it is possible to lay eggs with reduced cholesterol content from chickens, and produce eggs that can be used without hesitation by persons suffering from infarction diseases or those who may be there. be able to.
以下、本発明の養鶏方法の実施形態を、図面に基づき詳しく説明する。
本発明の養鶏方法は、採卵用の鶏に、脱気水を与えつつ養鶏を行うというものであり、それにより鶏からコレステロールの含有量が抑えられた鶏卵（以降、低コレステロール卵という）を産卵させるものとなっている。
この採卵用の鶏には、白色レグホンのような白玉鶏として一般的な種類のものから、ロードアイランドレッド、白色プリマスロック、アローカナのような種類のもの、さらには比内地鶏、名古屋コーチン、烏骨鶏のような卵肉兼用種のものを用いることができる。また、採卵用の鶏には、既に卵を産んでいる鶏の他、まだ初卵を産んでいない鶏も含めることができる。
Hereinafter, embodiments of the chicken raising method of the present invention will be described in detail with reference to the drawings.
The poultry farming method of the present invention is to perform poultry farming while supplying deaerated water to the egg-collecting chickens, thereby laying the eggs whose cholesterol content is suppressed from the chickens (hereinafter referred to as low cholesterol eggs). It is something to be made.
This egg-collecting chicken can be one of the general types of white eggs such as white leghorns, the ones such as Rhode Island Red, white Plymouth Rock, and Arokana. Egg-bearing species such as bone chicken can be used. In addition, chickens for egg collection can include chickens that have not yet laid eggs, as well as chickens that have already laid eggs.
この脱気水は、水道水などに含まれる溶存気体を取り除いたものである。例えば、溶存気体には酸素の他、地球上の大気に含まれる窒素やアルゴンなどのガスが含まれる。また，水道水においては消毒の目的で加えられた残留塩素を除くことができる。そして、脱気水は、本実施形態では図２に示すような脱気装置２を用いて脱気を行い、脱気後の溶存気体濃度が低減されたものが用いられている。具体的には、脱気水は、溶存酸素濃度が０．５ｐｐｍ〜２．５ｐｐｍとされており、水道水に溶け込んでいた気体の少なくとも７０％以上、好ましくは７５％以上が脱気されている。つまり、脱気を行わない水道水の溶存酸素濃度は一般的には７ｐｐｍ以上、発明者によっても８．４ｐｐｍ程度の溶存酸素濃度が確認されている。このような水道水を脱気することで、脱気装置２による脱気を行うことで溶存酸素濃度は０．５ｐｐｍ〜２．５ｐｐｍまで低減される。例えば、出願人が実際の脱気装置２を用いて溶存酸素濃度を計測した場合、水道水の９．６ｐｐｍに対して、脱気水の溶存酸素濃度は０．５３ｐｐｍとなっており、脱気による溶存酸素の低減効果が確認されている。 This deaerated water is obtained by removing dissolved gas contained in tap water or the like. For example, the dissolved gas includes oxygen and other gases such as nitrogen and argon contained in the atmosphere on the earth. In addition, residual chlorine added for the purpose of disinfection can be removed from tap water. In this embodiment, deaerated water is deaerated using a deaerator 2 as shown in FIG. 2, and the dissolved gas concentration after deaeration is reduced. Specifically, the deaerated water has a dissolved oxygen concentration of 0.5 ppm to 2.5 ppm, and at least 70% or more, preferably 75% or more of the gas dissolved in the tap water is deaerated. . That is, the dissolved oxygen concentration of tap water that is not degassed is generally 7 ppm or more, and the inventor has confirmed a dissolved oxygen concentration of about 8.4 ppm. By degassing such tap water, the concentration of dissolved oxygen is reduced to 0.5 ppm to 2.5 ppm by performing degassing by the degassing device 2. For example, when the applicant measures the dissolved oxygen concentration using the actual degassing device 2, the dissolved oxygen concentration of degassed water is 0.53 ppm with respect to 9.6 ppm of tap water. The effect of reducing dissolved oxygen due to is confirmed.
また、脱気装置２による脱気を行うと、副次的な効果として水道水中に含まれる遊離型残留塩素が除去される。そこで、この遊離型残留塩素についても、水道水と脱気水の双方に対して濃度測定を行った。具体的には、第16改正の日本薬局方「さらし粉」の定量法を参考にし、適宜条件を変更し容量分析法により行っている。つまり、試料２０ｍｌに希塩酸１０ｍＬ及びヨウ化カリウム２ｇを加え、さらに指示薬としてデンプン試液３ｍＬを加えたものを、０．００２ｍｏｌ／Ｌのチオ硫酸ナトリウム標準液（Ｆ＝１．０２７）を用いて滴定して、水道水及び脱気水中の遊離型残留塩素の濃度を測定した。この測定を第１測定とした場合に、時間を変えて第２測定も行った。 Moreover, when deaeration is performed by the deaeration device 2, free residual chlorine contained in the tap water is removed as a secondary effect. Therefore, the concentration of this free residual chlorine was also measured for both tap water and deaerated water. Specifically, referring to the quantification method of the 16th revision Japanese Pharmacopoeia “Shirakame”, the conditions are appropriately changed and the volume analysis method is used. That is, 10 mL of diluted hydrochloric acid and 2 g of potassium iodide were added to 20 mL of a sample, and 3 mL of starch sample solution was added as an indicator, and titrated with a 0.002 mol / L sodium thiosulfate standard solution (F = 1.027). Then, the concentration of free residual chlorine in tap water and deaerated water was measured. When this measurement was the first measurement, the second measurement was also performed at different times.
第２測定は、試料５０ｍｌに希塩酸１０ｍＬ及びヨウ化カリウム２ｇを加え、さらに指示薬としてデンプン試液５ｍＬを加えたものを、０．００２ｍｏｌ／Ｌのチオ硫酸ナトリウム標準液（Ｆ＝１．０２７）を用いて滴定して、水道水及び脱気水中の遊離型残留塩素の濃度を測定した。
上述した第１測定では、水道水に残留塩素が４．０（ｍｇ／Ｌ Ｃｌ2）が検出されたのに対して、脱気水では残留塩素が２．０（ｍｇ／Ｌ Ｃｌ2）と大幅に低くくなっており、脱気を行うことで水道水中の溶存塩素の濃度が大きく低減されることがわかる。
In the second measurement, 10 mL of diluted hydrochloric acid and 2 g of potassium iodide were added to 50 mL of a sample, and 5 mL of starch test solution was added as an indicator, and a 0.002 mol / L sodium thiosulfate standard solution (F = 1.027) was used. The concentration of free residual chlorine in tap water and deaerated water was measured.
In the first measurement described above, 4.0 (mg / L Cl 2 ) residual chlorine was detected in tap water, whereas the residual chlorine was 2.0 (mg / L Cl 2 ) in deaerated water. It is significantly lower, and it can be seen that the concentration of dissolved chlorine in tap water is greatly reduced by degassing.
また、第１測定とは計測を行う時間（時刻）が異なる第２測定では、水道水に残留塩素が１．２（ｍｇ／Ｌ Ｃｌ2）が検出されたのに対して、脱気水では残留塩素が検出限界以下まで大幅に低くくなっており、第１測定と同様に脱気を行うことで水道水中の溶存塩素の濃度が大きく低減されることがわかる。
この脱気水を鶏に与える方法としては、脱気装置２で脱気された脱気水を一時的に脱気水タンク３に貯留しておき、脱気水タンク３から鶏飼育ケージ４に送り、給水ニップル１３を介して鶏に与えるのが好ましい。この給水ニップル１３は、後述するように脱気水が再び大気に触れることを防止可能となっており、脱気水を鶏に与える方法として好適に用いることができる。
Further, in the second measurement, which is different from the first measurement in the measurement time (time), 1.2 (mg / L Cl 2 ) residual chlorine was detected in tap water, whereas in deaerated water, Residual chlorine is significantly lower than the detection limit, and it can be seen that the concentration of dissolved chlorine in tap water is greatly reduced by degassing as in the first measurement.
As a method of giving the deaerated water to the chicken, the deaerated water deaerated by the deaerator 2 is temporarily stored in the deaerated water tank 3 and is transferred from the deaerated water tank 3 to the chicken breeding cage 4. Feeding and feeding to chickens through a water supply nipple 13 is preferred. As will be described later, the water supply nipple 13 can prevent the deaerated water from coming into contact with the atmosphere again, and can be suitably used as a method for supplying the deaerated water to the chicken.
なお、養鶏システム１が小規模であるなどの理由から脱気装置２が導入できない場合は、予め脱気された脱気水を柔軟な合成樹脂製のパウチなどに入れておき、パウチの口に給水ニップル１３などを取り付けておけば、パウチから鶏に脱気水を直接与えることも可能である。
上述した脱気水を鶏に与える期間は、少なくとも１ヶ月以上、好ましくは２ヶ月以上とされるのが良い。これらの期間に亘って、脱気水を与えられた鶏は、活性酸素の影響をあまり受けずに健全に生育し、健全に生育した鶏からコレステロールの含有量が明らかに抑えられた低コレステロール卵が得られる。なお、脱気水を鶏に与える期間としては、上述した１ヶ月を目安として示しているが、１ヶ月を下回る期間、例えば数日〜１ヶ月であっても、低コレステロール卵を得ることはできる。
In addition, when the deaeration device 2 cannot be introduced because the chicken farming system 1 is small-scale, the deaerated water previously deaerated is put in a flexible synthetic resin pouch or the like and put in the mouth of the pouch. If a water supply nipple 13 or the like is attached, deaerated water can be directly supplied from the pouch to the chicken.
The period during which the deaerated water is given to the chicken is at least 1 month or more, preferably 2 months or more. Over these periods, chickens fed with deaerated water grew healthy without much influence of active oxygen, and low-cholesterol eggs with clearly reduced cholesterol content from healthy grown chickens. Is obtained. In addition, as a period which gives deaerated water to a chicken, although the above-mentioned 1 month is shown as a standard, even if it is a period less than 1 month, for example, several days-1 month, a low cholesterol egg can be obtained. .
低コレステロール卵は、鶏卵に含まれるコレステロールの含有量が低減されたものである。具体的には、低コレステロール卵に含まれるコレステロールの含有量は、水道水を用いて養鶏した通常の鶏が産卵した通常卵の８１〜８９％となっており、コレステロールの含有量が通常卵に比べて７％以上、好ましくは８％〜３０％、さらに好ましくは１２％〜１８％まで低減したものとなっている。 Low cholesterol eggs are those in which the content of cholesterol contained in chicken eggs is reduced. Specifically, the content of cholesterol contained in low-cholesterol eggs is 81 to 89% of normal eggs laid by normal chickens cultivated using tap water, and the content of cholesterol in normal eggs Compared to 7% or more, preferably 8% to 30%, more preferably 12% to 18%.
上述した養鶏方法を用いた場合の作用効果を、実験データを用いて、更に詳しく以降に説明する。
まず、上述したような脱気装置２で脱気を行った脱気水を、鶏飼育ケージ４内に収容された５０００羽〜８０００羽を１群とするの鶏に与えつつ養鶏を行った。実験を行った鶏の群は全部で５群であり、それぞれの群に属する鶏に関しては養鶏の開始日や養鶏場所、さらには養鶏対象の鶏の種類を変化させて養鶏を行った。
The effect of using the chicken raising method described above will be described in more detail below using experimental data.
First, poultry farming was performed while feeding the deaerated water deaerated with the deaerator 2 as described above to a group of 5,000 to 8000 chickens housed in the chicken breeding cage 4. The groups of chickens that were tested were 5 groups in total, and for the chickens belonging to each group, chickens were raised by changing the start date and place of poultry raising, and the type of chicken to be raised.
養鶏に用いた鶏群のうち、第１群については、養鶏開始後１ヶ月目、２ヶ月目及び３ヶ月目に、鶏卵の黄卵に含まれるコレステロール濃度を卵１個ごとにコレステロールオキシダーゼ・DAOS法に基づく比色法を用いて分析した。また、第２群については、養鶏開始後１ヶ月目及び２ヶ月目に同じ比色法を用いてコレステロール濃度を分析した。さらに、第３群及び第４群については、養鶏開始後１ヶ月目のコレステロール濃度のみを比色法で分析した。さらにまた、第５群については、第１群〜第４群とは異なる養鶏場で、異なる種類の鶏（卵肉兼用種の地鶏）を３ヶ月間に亘り養鶏し、養鶏された卵に対してコレステロール濃度を分析している。 Of the flocks used for poultry farming, the first group is the cholesterol oxidase and DAOS for each egg at the first, second, and third months after the start of poultry. The colorimetric method based on the method was used for analysis. Moreover, about the 2nd group, the cholesterol concentration was analyzed using the same colorimetric method in the 1st month and the 2nd month after the start of chicken raising. Furthermore, about the 3rd group and the 4th group, only the cholesterol concentration of the 1st month after the start of chicken raising was analyzed by the colorimetric method. Furthermore, with regard to the fifth group, different types of chickens (eg, chickens combined with egg meat) are raised for three months in a different chicken farm from the first group to the fourth group. On the other hand, cholesterol concentration is analyzed.
なお、上述した各群の鶏に対して、それぞれの群の養鶏開始日と同日から水道水を与えて養鶏を開始した鶏も用意した。これらの鶏が産卵した鶏卵についても、比較のために鶏卵の黄卵に含まれるコレステロール濃度を分析した。
第１群〜第４群のそれぞれに対して、養鶏開始後１ヶ月目の鶏卵に含まれるコレステロール濃度を、脱気水を用いて養鶏を行ったものと、水道水を用いて養鶏を行ったものとの間で比較した。１ヶ月目の鶏卵で比較した結果を、図３に示す。
In addition, with respect to the chicken of each group mentioned above, the chicken which gave the tap water from the same day as the chicken farming start date of each group and started chicken raising was also prepared. For the eggs laid by these chickens, the cholesterol concentration contained in the egg yolk was also analyzed for comparison.
For each of the first group to the fourth group, the cholesterol concentration contained in the hen's egg in the first month after the start of poultry was raised using deaerated water and the chicken was raised using tap water. Compared with the ones. FIG. 3 shows the result of comparison with the eggs of the first month.
また、第１群及び第２群のそれぞれに対して、養鶏開始後２ヶ月目の鶏卵に含まれるコレステロール濃度を、さらに第１群に対しては、養鶏開始後３ヶ月目の鶏卵に含まれるコレステロール濃度についても、脱気水を用いて養鶏を行ったものと、水道水を用いて養鶏を行ったものとの間で比較した。２ヶ月目の鶏卵で比較した結果を図４（ａ）、図４（ｂ）に、また３ヶ月目の鶏卵で比較した結果を図４（ｃ）に示す。 In addition, for each of the first group and the second group, the cholesterol concentration contained in the egg 2 months after the start of poultry is included, and for the first group, it is contained in the egg 3 months after the start of poultry. The cholesterol concentration was also compared between those that were raised using deaerated water and those that were raised using tap water. 4 (a) and 4 (b) show the results of comparison with chicken eggs at 2 months, and FIG. 4 (c) shows the result of comparison with eggs at 3 months.
さらに、市販の鶏卵との間で比較した結果を図５（ａ）に、また上述した第５群におけるコレステロール濃度の結果を図５（ｂ）示した。
なお、黄卵中のコレステロール濃度の計測に用いた「コレステロールオキシダーゼ・DAOS法に基づく比色法」とは、黄卵中に含まれるコレステロールエステル類にコレステロールエステラーゼを作用させてコレステロールを遊離し、遊離したコレステロールにコレス
テロールオキシダーゼを作用させて過酸化水素を生成させ、生成した過酸化水素にペルオキシダーゼ（ＰＯＤ）を作用させることで青色の色素を生成させるものとなっている。このようにして得られた青色の色素の強さを、吸光光度計（BIO-RAD社製）を用いて吸光度として計測する。なお、コレステロール濃度が既知の試料を用いて検量線を予め作成しておけば、黄卵中のコレステロール濃度を高精度に計測することができる。
Furthermore, the result compared with the commercially available chicken egg is shown in FIG. 5 (a), and the result of the cholesterol concentration in the fifth group described above is shown in FIG. 5 (b).
The “colorimetric method based on cholesterol oxidase / DAOS method” used to measure the cholesterol concentration in yolk is a cholesterol esterase that acts on cholesterol esters contained in yolk to release cholesterol. Cholesterol oxidase is allowed to act on the resulting cholesterol to generate hydrogen peroxide, and peroxidase (POD) is allowed to act on the generated hydrogen peroxide to generate a blue pigment. The intensity of the blue pigment thus obtained is measured as absorbance using an absorptiometer (manufactured by BIO-RAD). If a calibration curve is prepared in advance using a sample with a known cholesterol concentration, the cholesterol concentration in the yolk can be measured with high accuracy.
図３を見ると、養鶏開始後１ヶ月目で、脱気水を用いて養鶏した鶏の鶏卵を示す「Degassed water」の方が、水道水を用いて養鶏した鶏の鶏卵を示す「Normal water」の結果よりも、コレステロール濃度が低くなっていることがわかる。
例えば、第１群の鶏卵の場合であれば、「Degassed water」に属する５つの計測値の中央値（median）を求めると1204mg/mLとなり、「Normal water」に属する５つの計測値の中央値（median）を求めると1377mg/mLとなって、両者の間には12.6%程度の差があることがわかる。このようなコレステロール濃度の差は、第２群〜第４群の全てに対して存在しており、第２群で16.4%、第３群で17.8%、第４群で8.9%となっている。
Referring to FIG. 3, “Degassed water” showing the eggs of chickens raised using deaerated water one month after the start of poultry raising shows “Normal water” showing the eggs of chickens raised using tap water. It can be seen that the cholesterol concentration is lower than the result of "."
For example, in the case of the first group of eggs, the median value of five measured values belonging to “Degassed water” is 1204 mg / mL, and the median value of five measured values belonging to “Normal water” (Median) is found to be 1377 mg / mL, showing that there is a difference of about 12.6% between the two. Such a difference in cholesterol concentration exists for all of the second group to the fourth group, which is 16.4% in the second group, 17.8% in the third group, and 8.9% in the fourth group. .
さらに、「Degassed water」の計測値と、「Normal water」の計測値との差が有意差であるかどうかを判断するために、有意差５％でマン・ホイットニーのＵ検定を行うと、いずれの群の鶏卵でもＰ値は５％未満となる。このことから、統計的に見ても「Degassed water」のコレステロール濃度は「Normal water」のコレステロール濃度より小さいと判断することができる。 Furthermore, in order to determine whether the difference between the measured value of “Degassed water” and the measured value of “Normal water” is a significant difference, a Mann-Whitney U test with a significant difference of 5% Even in this group of eggs, the P value is less than 5%. From this, it can be judged that the cholesterol concentration of “Degassed water” is smaller than the cholesterol concentration of “Normal water” also from a statistical viewpoint.
また、図４（ａ）及び図４（ｂ）を見ると、養鶏開始後２ヶ月目でも、脱気水を用いて養鶏した鶏の鶏卵を示す「Degassed water」の方が、水道水を用いて養鶏した鶏の鶏卵を示す「Normal water」の結果よりも、コレステロール濃度が低くなっていることがわかる。
例えば、第１群の鶏を２ヶ月に亘って養鶏して得られた鶏卵の場合であれば、５０００羽〜８０００羽の鶏が産卵した鶏卵から無作為に選ばれた１０個の計測値の中央値で比較しても「Normal water」の1199mg/mLに対して「Degassed water」は996.0mg/mLとなり、両者の間には16.9%程度の差があることがわかる。このようなコレステロール濃度の差は、第２群の鶏を２ヶ月に亘って養鶏して得られた鶏卵に対しても存在しており、第２群でのコレステロール濃度の差は13.4%となっている。
4 (a) and 4 (b), “Degassed water” indicating the eggs of chickens raised using degassed water was used with tap water even in the second month after the start of poultry farming. It can be seen that the cholesterol concentration is lower than the result of “Normal water” indicating the eggs of chickens raised in the past.
For example, in the case of eggs obtained by raising the first group of chickens for 2 months, 10 measured values randomly selected from eggs laid by 5000 to 8000 chickens. Even when compared with the median, “Degassed water” is 996.0 mg / mL compared with “Normal water” of 1199 mg / mL, and there is a difference of about 16.9% between the two. Such a difference in cholesterol concentration is also present in eggs obtained by raising the second group of chickens for two months, and the difference in cholesterol concentration in the second group is 13.4%. ing.
さらに、有意差５％でマン・ホイットニーのＵ検定を行った場合には、Ｐ値はいずれの群の鶏卵でも５％未満となり、統計的に見ても「Degassed water」のコレステロール濃度は「Normal water」のコレステロール濃度より小さいと判断することができる。
さらに、図４（ｃ）を見ると、養鶏開始後１ヶ月目及び養鶏開始後２ヶ月目と同様な結果が養鶏開始後３ヶ月目の鶏卵に対して得られている。つまり、第１群の鶏を２ヶ月に亘って養鶏して得られた鶏卵から無作為に選ばれた１０個の鶏卵に対して、計測値の中央値で比較すると、「Normal water」の1150mg/mLに対して「Degassed water」は1014mg/mLとなり、両者の間には11.8%程度の差があることがわかる。
Furthermore, when the Mann-Whitney U test was performed with a significant difference of 5%, the P value was less than 5% in any group of eggs, and the cholesterol concentration of “Degassed water” was statistically “Normal” It can be judged that it is smaller than the cholesterol concentration of “water”.
Furthermore, when FIG.4 (c) is seen, the result similar to the 1st month after poultry start and the 2nd month after poultry start is obtained with respect to the egg of the 3rd month after poultry start. In other words, 10 eggs randomly selected from the eggs obtained by raising the first group of chickens for 2 months, compared with the median of the measured values, 1150 mg of “Normal water” “Degassed water” is 1014 mg / mL against / mL, and there is a difference of about 11.8% between the two.
また、図５（ａ）に示すように、脱気水を用いて３ヶ月目まで養鶏した鶏の鶏卵と、市販の鶏卵とを比較した場合にも、計測値の中央値で比較すると、「Normal water」の1213mg/mLに対して「Degassed water」は1014mg/mLとなり、両者の間には16.4%程度の差があることがわかる。さらに、図５（ｂ）に示すように、第１群から第４群とは異なる場所にある養鶏場にて、異なる種類の鶏が産卵した鶏卵で比較した場合にも、計測値の中央値で比較すると、両者の間には25.5%程度の差がある。 In addition, as shown in FIG. 5 (a), when comparing chicken eggs cultivated with deaerated water up to the third month and commercially available eggs, when compared with the median of measured values, “Degassed water” is 1014 mg / mL compared to “Normal water” of 1213 mg / mL, and there is a difference of about 16.4% between the two. Furthermore, as shown in FIG. 5 (b), the median value of the measured values is also obtained when comparing chicken eggs laid by different types of chickens at a poultry farm in a different place from the first group to the fourth group. In comparison, there is a difference of about 25.5% between the two.
さらに、有意差５％でマン・ホイットニーのＵ検定を行った場合には、Ｐ値はいずれの群の鶏卵でも５％未満となり、統計的に見ても「Degassed water」のコレステロール濃度は「Normal water」のコレステロール濃度より小さいと判断することができる。
以上のことから、水道水を用いて養鶏した通常の鶏が産卵した通常卵に比べて、本発明の養鶏方法を用いて養鶏した鶏から得られる低コレステロール卵では、コレステロールの含有量が通常卵に比べて７％以上、好ましくは８％〜３０％、さらに好ましくは１２％〜１８％まで低減させることができると判断される。特に、一般に市販されている鶏卵に比べて、本発明の養鶏方法を用いて養鶏した鶏から得られる低コレステロール卵では、コレ
ステロールの含有量が通常卵に比べて１６％程度まで低減させることができると判断される。また、脱気水を与えて養鶏を行う期間としては、最低でも数日〜１ヶ月以上、好ましくは２ヶ月以上、さらに好ましくは３ヶ月以上とするのが良いと考えられる。つまり、本発明の養鶏方法によれば、鶏からコレステロールの含有量が抑えられた低コレステロール卵を産卵させることができ、梗塞性の疾患を患う者やその虞がある者が気兼ねなく利用可能な鶏卵を生産することができる。
Furthermore, when the Mann-Whitney U test was performed with a significant difference of 5%, the P value was less than 5% in any group of eggs, and the cholesterol concentration of “Degassed water” was statistically “Normal” It can be judged that it is smaller than the cholesterol concentration of “water”.
From the above, compared with normal eggs laid by normal chickens laid using tap water, low cholesterol eggs obtained from chickens laid using the poultry raising method of the present invention have a cholesterol content of normal eggs. 7% or more, preferably 8% to 30%, more preferably 12% to 18%. In particular, the cholesterol content of low-cholesterol eggs obtained from chickens raised using the poultry raising method of the present invention can be reduced to about 16% compared to normal eggs, as compared to commercially available eggs. It is judged. In addition, it is considered that the period during which chickens are raised with deaerated water should be at least several days to 1 month or more, preferably 2 months or more, and more preferably 3 months or more. That is, according to the poultry farming method of the present invention, it is possible to lay low-cholesterol eggs in which the content of cholesterol is suppressed from chickens, which can be used without hesitation by persons suffering from infarction diseases or those who may be there. Eggs can be produced.
なお、上述した本発明の養鶏方法を実際に行う際には、次のような養鶏システム１を利用することができる。以降では、本発明の養鶏方法を実施するための養鶏システム１を、具体的な装置を例示して説明する。
図１は、本実施形態の養鶏方法が行われる養鶏システム１を模式的に示したものである。
In addition, when actually performing the above-described poultry farming method of the present invention, the following poultry farming system 1 can be used. Hereinafter, the poultry farming system 1 for carrying out the poultry farming method of the present invention will be described with reference to specific devices.
FIG. 1 schematically shows a poultry farming system 1 in which the poultry farming method of the present embodiment is performed.
図１に示すように、本実施形態の養鶏システム１は、水道水（上水）に含まれる溶存気体を除去する脱気装置２と、脱気装置２で脱気された脱気水を貯留する脱気水タンク３と、脱気水タンク３に貯留された脱気水を複数の鶏飼育ケージ４に流通させる脱気水配管５と、を備えている。
次に、養鶏システム１を構成する脱気装置２、脱気水タンク３、脱気水配管５、及び鶏飼育ケージ４について簡単に説明する。
As shown in FIG. 1, the poultry farming system 1 of the present embodiment stores a deaerator 2 that removes dissolved gas contained in tap water (water) and deaerated water deaerated by the deaerator 2. A deaerated water tank 3 and a deaerated water pipe 5 for distributing the deaerated water stored in the deaerated water tank 3 to a plurality of chicken breeding cages 4.
Next, the deaeration apparatus 2, the deaeration water tank 3, the deaeration water piping 5, and the chicken breeding cage 4 which comprise the chicken raising system 1 are demonstrated easily.
図２に示すように、脱気装置２は、水道水に含まれる溶存気体、特に溶存酸素を取り除くものであり、中空糸膜モジュール６へ水を通し、この中空糸膜モジュール６内の中空糸まわりを真空ポンプ７で引いて負圧化させ、もって脱気させる構成とされている。具体的には、脱気装置２は、収納ケース８の内側に、液体中の気体を分離通過させる中空糸を多数本有する中空糸膜モジュール６と、中空糸膜モジュール６内の通水状況を検出する水流センサ９と、中空糸膜モジュール６に接続され水流センサ９による通水検出動作に基づいて起動し止水検出動作に基づいて停止する乾式の真空ポンプ７と、を備えている。また、脱気装置２には、中空糸膜モジュール６と真空ポンプ７との接続通路途中に設けられたドレン部１０と、ドレン部１０に連結された排水弁１１と、中空糸膜モジュール６の給水部から乾式真空ポンプ７までの接続間で流路順方向から側部突出状に設けられて乾式真空ポンプ７の起動時に暫時解放しその後自動閉鎖する開閉弁１２と、が設けられている。 As shown in FIG. 2, the deaeration device 2 removes dissolved gas, particularly dissolved oxygen, contained in tap water, passes water through the hollow fiber membrane module 6, and the hollow fiber in the hollow fiber membrane module 6. The surroundings are drawn with a vacuum pump 7 so as to be negative pressure, thereby deaeration. Specifically, the deaeration device 2 includes a hollow fiber membrane module 6 having a large number of hollow fibers that separate and pass a gas in the liquid inside the storage case 8, and a water flow state in the hollow fiber membrane module 6. A water flow sensor 9 to be detected, and a dry vacuum pump 7 connected to the hollow fiber membrane module 6 and started based on the water flow detection operation by the water flow sensor 9 and stopped based on the water stop detection operation are provided. Further, the degassing device 2 includes a drain portion 10 provided in the middle of a connection passage between the hollow fiber membrane module 6 and the vacuum pump 7, a drain valve 11 connected to the drain portion 10, and the hollow fiber membrane module 6. An on-off valve 12 is provided between the connection from the water supply unit to the dry vacuum pump 7 so as to protrude sideways from the forward direction of the flow path and is released for a while when the dry vacuum pump 7 is started and then automatically closed.
つまり、脱気装置２は、溶存気体が含まれた水道水を、中空糸膜モジュール６内に収容された複数本の中空糸内に導き、乾式真空ポンプ７を用いて中空糸の周囲を負圧化することで、水道水に含まれる溶存気体を取り除く構成となっている。このようにして溶存気体が取り除かれた水道水は、脱気水として脱気水配管５を通って脱気水タンク３に送られる。 That is, the degassing device 2 guides the tap water containing the dissolved gas into a plurality of hollow fibers accommodated in the hollow fiber membrane module 6, and negatively surrounds the hollow fibers using the dry vacuum pump 7. By being pressurized, it is configured to remove dissolved gas contained in tap water. The tap water from which the dissolved gas has been removed in this way is sent to the deaerated water tank 3 through the deaerated water pipe 5 as deaerated water.
脱気水タンク３は、脱気装置２で脱気された脱気水を貯留する容器であり、容器外から容器の内部に大気が入らないように気密性のある容器とされている。また、脱気水配管５は、脱気水タンク３の脱気水を鶏飼育ケージ４に通水するものであり、脱気水タンク３と同様に配管内に大気が侵入しないように気密性のある構造とされている。この脱気水配管５の先端には、大気に触れさせることなく脱気水を鶏に与える給水ニップル１３が設けられている。 The deaerated water tank 3 is a container for storing the deaerated water deaerated by the deaerator 2 and is an airtight container so that air does not enter the container from the outside of the container. In addition, the deaeration water pipe 5 is used to pass the deaerated water from the deaeration water tank 3 to the chicken breeding cage 4 and, like the deaeration water tank 3, is airtight so that air does not enter the pipe. It has a structure with. A water supply nipple 13 that provides deaerated water to the chicken without being exposed to the atmosphere is provided at the tip of the deaerated water pipe 5.
給水ニップル１３は、分岐した先端には脱気水配管５を通じて流れてきた脱気水を、大気に触れさせることなく鶏に与えるものである。給水ニップル１３は、下方に向かって突出するように垂下したニップル先端を鶏が突くことで給水を行う構造となっており、脱気水を大気に直接触れさせることなく鶏に給水することが可能となっている。そのため、脱気水が再び大気に触れて大気中の酸素などが脱気水に溶け込むことを予防できる。 The water supply nipple 13 gives the deaerated water that has flowed through the deaerated water pipe 5 to the chicken at a branched tip without touching the atmosphere. The water supply nipple 13 has a structure in which the chicken feeds water by pushing the tip of the nipple hanging down so as to protrude downward, so that the deaerated water can be fed to the chicken without directly contacting the atmosphere. It has become. Therefore, it is possible to prevent the deaerated water from coming into contact with the atmosphere again and the oxygen in the atmosphere to dissolve in the deaerated water.
鶏飼育ケージ４は、上下左右前後の６面を金属製の格子で覆われた容器（バタリーケージ）であり、養鶏する鶏１羽ごとに用意されている。この鶏飼育ケージ４は、水平方向に複数並ぶと共に上下方向に複数段に亘って設けられており、それぞれの内部に鶏を収容して数千羽の鶏の養鶏を行うことが可能となっている。
上述した養鶏システム１を用いれば、脱気装置２で脱気されると共に残留塩素を除去された脱気水を大気に接触させることなく効率的に鶏飼育ケージ４の鶏に届けることができ
、脱気水を安定して与えつつ養鶏を行うことができる。
The chicken breeding cage 4 is a container (battery cage) in which six surfaces, top, bottom, left and right, front and rear, are covered with a metal lattice, and is prepared for each chicken to be raised. A plurality of chicken breeding cages 4 are arranged in the horizontal direction and provided in a plurality of stages in the vertical direction, and it becomes possible to house chickens in each of them and raise thousands of chickens. Yes.
If the chicken raising system 1 described above is used, deaerated water that has been deaerated by the deaerator 2 and removed residual chlorine can be efficiently delivered to the chickens in the chicken breeding cage 4 without contacting the atmosphere. Chicken farming can be performed while stably supplying deaerated water.
なお、今回開示された実施形態はすべての点で例示であって制限的なものではないと考えられるべきである。特に、今回開示された実施形態において、明示的に開示されていない事項、例えば、運転条件や操業条件、各種パラメータ、構成物の寸法、重量、体積などは、当業者が通常実施する範囲を逸脱するものではなく、通常の当業者であれば、容易に想定することが可能な値を採用している。 The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. In particular, in the embodiment disclosed this time, matters that are not explicitly disclosed, for example, operating conditions and operating conditions, various parameters, dimensions, weights, volumes, and the like of a component deviate from a range that a person skilled in the art normally performs. Instead, values that can be easily assumed by those skilled in the art are employed.
１ 養鶏システム
２ 脱気装置
３ 脱気水タンク
４ 鶏飼育ケージ
５ 脱気水配管
６ 中空糸膜モジュール
７ 真空ポンプ
８ 収納ケース
９ 水流センサ
１０ ドレン部
１１ 排水弁
１２ 開閉弁
１３ 給水ニップル
DESCRIPTION OF SYMBOLS 1 Poultry system 2 Deaeration device 3 Deaeration water tank 4 Chicken breeding cage 5 Deaeration water piping 6 Hollow fiber membrane module 7 Vacuum pump 8 Storage case 9 Water flow sensor 10 Drain part 11 Drain valve 12 Open / close valve 13 Water supply nipple
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107410205A (en) * | 2017-09-30 | 2017-12-01 | 曹美兰 | A kind of feeding method for improving laying hen winter egg production and quality of laying eggs |
| CN110301400A (en) * | 2019-07-25 | 2019-10-08 | 六安市叶集区王大娘生态养殖专业合作社 | A kind of Spotted-brown chicken is efficiently hatched and high-quality breeding method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04222530A (en) * | 1990-12-25 | 1992-08-12 | Miura Co Ltd | Method for rearing livestock and poultry by deaired water |
| JPH10323159A (en) * | 1997-05-23 | 1998-12-08 | Koichi Shimura | Drinking water for laying hen and mixed feed |
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2015
- 2015-05-25 JP JP2015105509A patent/JP6483527B2/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04222530A (en) * | 1990-12-25 | 1992-08-12 | Miura Co Ltd | Method for rearing livestock and poultry by deaired water |
| JPH10323159A (en) * | 1997-05-23 | 1998-12-08 | Koichi Shimura | Drinking water for laying hen and mixed feed |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107410205A (en) * | 2017-09-30 | 2017-12-01 | 曹美兰 | A kind of feeding method for improving laying hen winter egg production and quality of laying eggs |
| CN110301400A (en) * | 2019-07-25 | 2019-10-08 | 六安市叶集区王大娘生态养殖专业合作社 | A kind of Spotted-brown chicken is efficiently hatched and high-quality breeding method |
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