【発明の詳細な説明】[Detailed description of the invention]
本発明は孵化後１〜５日の雛鶏に給餌する餌付
用の飼料に関する。
従来、雛鳥には孵化後１〜５日の間に餌付を行
なつている。この餌付期間に餌をよく摂取して発
育のよい雛鶏はその後も順調に発育して体重の大
きな成鶏となることが知られている。ところで、
これまでこの餌付期間に与えている飼料には粉末
状とものとクランブル状のものがあるが、粉末状
の飼料は雛鶏には非常に摂取しにくいので発育性
が悪く、またクランブル状の飼料は雛鶏の摂取量
が大であるが、往々にして下痢を起し、その後の
発育が重大な支障をきたす欠点がある。
本発明者らは鶏の発育における前記餌付期間の
重要性に鑑みて、雛鶏に摂取しやすく且つ下痢を
起さないような餌付用の飼料を得るために鋭意研
究の結果、粒径が1.5mm以下の飼料原料を使用し
てクランブルにすれば目的とする飼料が得られる
ことを見出して本発明を完成した。
本発明は粒径が1.5mm以下の飼料原料、たとえ
ば穀粉、魚粉、油脂およびビタミンの混合物から
形成されたクランブルからなることを特徴とする
雛鶏の餌付用飼料である。
本発明で使用する穀粉としてはとうもろこし
粉、マイロ粉、大豆粕、きな粉など鶏の飼育に通
常使用するものが挙げられる。同様に使用する魚
粉、としては北洋ミール、トロールミール、工船
ミールなど、油脂としてはタロー、大豆白紋油、
菜種油など、そしてビタンミンとしてはビタミン
Ｃ、パントテン酸、ニコチン酸、ビオチン、コリ
ンなどのいずれも鶏用飼料原料として通常使用す
るものがあげられる。
これらの飼料原料をそれぞれ目開き1.5mmの篩
に通して篩下の粉末を、分取し、穀粉85〜95重量
％、魚粉１〜５重量％、油脂２〜５重量％および
ビタミン１〜５重量％の割合で混合し、混合物を
常法によりクランブル成形して本発明の餌付用飼
料とする。便法として本発明の餌付用飼料は各飼
料原料を篩分する前に前記の割合で混合し、得ら
れた混合物を目開か1.5mmの篩に通し、篩下の混
合物を使用してクランブルに調製することもでき
る。いずれの方法によるにせよ、篩分した後の飼
料原料の混合物の粒径は1.5〜1.0mmのもの15〜30
重量％、1.0mm未満〜0.5mmのもの50〜70重量％、
そして0.5mm未満のもの15〜30重量％になるよう
にするのが好ましい。
さらに本発明の餌付用飼料は前記クランブル成
形したものに30〜60重量％の割合で水を添加した
形態で使用すると一層良好な結果を得ることがで
きる。この場合水の添加は例えば如露を用いて散
水する方法で行なう。この場合１日令の鶏には前
記水分量の上限近くそして２日令からは下限近く
を散水するのが好ましい。水の添加量が60重量％
を越えると飼料の摂取量が減少するので好ましく
ない、また水の添加量が30重量％未満ではとくに
水分を添加したことによる顕著な効果が見られな
い。
本発明の餌付用飼料は孵化後１〜５日令の雛鶏
に摂取しやすく、しかもこれを多量に摂取させて
も下痢を生ぜず糞切れのよい性質を有している。
従つて本発明の餌付用飼料を餌付期間中に使用す
るとこの後の成鶏に至るまでの期間、鶏の高い発
育効果が得られる。
本発明をさらに具体的に示すための以下に実施
例を挙げて説明する。
実施例 １
とうもろこし粉56.8Kg、大豆粕27.4Kg、きな粉
５Kg、北洋ミール５Kg、大豆白紋油３Kgおよびビ
タミンミネラル３Kgをそれぞれ予め粒径1.5mm以
下になるように粉砕して混合した。得られた混合
粉末を1.5mm、1.0mmおよび0.5mmの目開きを有する
篩を篩して篩下の粉末を分取して粒度分布を測定
したところ、粒径1.5〜1.0mmのもの15重量％、1.0
mm未満〜0.5mmのもの70重量％、0.5mm未満のもの
15重量％であつた。
次に得られた粉末１Kgに水62mlを添加してペレ
ツトマシンに供給し、直径3.2mm×長さ22mmのペ
レツトに成形した。このペレツトをロールに通し
て粗砕してクランブル状飼料を得た（クランブル
の粒径0.84〜3.4mm）。
前記クランブル状飼料１Kgに水500mlを散水し
て湿性のクランブル状飼料とした。
比較のために、前記の飼料原料をそれぞれ予め
粒径２mm以下となるように粉砕して混合し、得ら
れた混合物粉末を２mm、16mm、1.0mmおよび0.5mm
の目開きを有する篩を通して粒度分布を調べたと
ころ、粒径２〜1.6mmのもの２重量％、1.6mm未満
〜1.0mmのもの20重量％、1.0mm未満〜0.5mmのもの
50重量％、0.5mm未満のもの10重量％を含有して
いた。
次に前記の粉末状飼料１Kgを使用し前記の方法
でクランブル状飼料を得た。
またこのクランブル状飼料１Kgに水500mlを散
水して湿性のクランブル状飼料とした。
次に、アーバーエーカー種の鶏（生後１日令）
を各区80羽ずつ５区準備し、各区に上記で得た飼
料５種の各々を５日間給餌した。その後は各区と
もすべて同一の鶏用飼料を給餌して３週令まで飼
育した。
各区の給餌開始時と３週令時の１羽当たりの平
均体重、給餌開始時と３週令時の間の１羽当りの
平均増体重と平均飼料摂取量、飼料要求率（体重
１ｇ増加するのに必要として飼料ｇ数および生後
７日令までの１羽当たり平均飲水量を下記の表１
に示す。
The present invention relates to feed for feeding chicks 1 to 5 days after hatching. Traditionally, baby birds are fed between 1 and 5 days after hatching. It is known that chicks that take in a lot of feed during this feeding period and grow well will continue to grow steadily and become adult chickens with a large weight. by the way,
Up until now, the feed that has been given during this feeding period includes powdered, crumbled, and crumbled feed, but powdered feed is extremely difficult for chicks to ingest, resulting in poor growth and crumbled feed. The amount of feed that chicks consume is large, but it has the disadvantage that it often causes diarrhea, which seriously hinders their subsequent growth. In view of the importance of the above-mentioned feeding period in the development of chickens, the present inventors conducted intensive research to obtain feed for feeding that is easy for chickens to ingest and does not cause diarrhea. The present invention was completed by discovering that the desired feed can be obtained by crumbling feed materials with a diameter of 1.5 mm or less. The present invention is a feed for feeding chicks, characterized in that it consists of a crumble formed from a mixture of feed ingredients, such as grain flour, fish meal, fats and oils, and vitamins, with a particle size of 1.5 mm or less. Examples of the flour used in the present invention include those commonly used for raising chickens, such as corn flour, milo flour, soybean meal, and soybean flour. Similarly, fishmeal to be used includes Beiyo meal, trawl meal, and shipyard meal, and oils and fats to be used include tallow, soybean oil, and soybean meal.
Examples of the vitamins include rapeseed oil, vitamin C, pantothenic acid, nicotinic acid, biotin, and choline, all of which are commonly used as raw materials for chicken feed. Each of these feed ingredients is passed through a sieve with an opening of 1.5 mm, and the powder under the sieve is separated, containing 85-95% by weight of grain flour, 1-5% by weight of fish meal, 2-5% by weight of oil and fat, and 1-5% of vitamins. The mixture is mixed in a proportion of % by weight, and the mixture is crumbled by a conventional method to obtain the feeding feed of the present invention. As a convenient method, the feed for feeding of the present invention is prepared by mixing each feed ingredient in the above proportions before sieving, passing the resulting mixture through a sieve with an opening of 1.5 mm, and using the mixture under the sieve to crumble. It can also be prepared. Regardless of the method used, the particle size of the feed material mixture after sieving is 1.5 to 1.0 mm15 to 30 mm.
Weight%, less than 1.0mm ~ 0.5mm 50-70% by weight,
It is preferable that 15 to 30% by weight of the material be smaller than 0.5 mm. Furthermore, even better results can be obtained when the feeding feed of the present invention is used in the form of the crumb-formed product to which water is added in a proportion of 30 to 60% by weight. In this case, water is added, for example, by sprinkling water using water. In this case, it is preferable to water chickens at one day old near the upper limit of the water content, and from two days old onwards, water near the lower limit. Added amount of water is 60% by weight
If the amount exceeds 30% by weight, it is not preferable because the amount of feed intake decreases, and if the amount of water added is less than 30% by weight, no significant effect can be seen from the addition of water. The feeding feed of the present invention is easily ingested by chicks aged 1 to 5 days after hatching, and even when ingested in large quantities, it does not cause diarrhea and has the property of being easy to remove feces.
Therefore, if the feeding feed of the present invention is used during the feeding period, a high growth effect on the chickens can be obtained during the subsequent period until the chickens reach adulthood. EXAMPLES In order to demonstrate the present invention more specifically, examples will be given and explained below. Example 1 56.8 kg of corn flour, 27.4 kg of soybean meal, 5 kg of soybean flour, 5 kg of North Pacific meal, 3 kg of soybean oil and 3 kg of vitamins and minerals were each ground in advance to a particle size of 1.5 mm or less and mixed together. The obtained mixed powder was sieved through a sieve with openings of 1.5 mm, 1.0 mm, and 0.5 mm, and the powder under the sieve was collected to measure the particle size distribution. %, 1.0
70% by weight of less than mm ~ 0.5 mm, less than 0.5 mm
It was 15% by weight. Next, 62 ml of water was added to 1 kg of the obtained powder, which was then fed into a pellet machine to form pellets with a diameter of 3.2 mm and a length of 22 mm. The pellets were passed through a roll to be coarsely crushed to obtain crumbled feed (particle size of crumbles: 0.84 to 3.4 mm). 1 kg of the crumbled feed was sprinkled with 500 ml of water to obtain a wet crumbled feed. For comparison, each of the above-mentioned feed ingredients was ground and mixed in advance to a particle size of 2 mm or less, and the resulting mixed powder was 2 mm, 16 mm, 1.0 mm, and 0.5 mm.
When examining the particle size distribution through a sieve with a mesh size of
It contained 50% by weight and 10% by weight of particles smaller than 0.5 mm. Next, using 1 kg of the powdered feed described above, a crumbled feed was obtained by the method described above. Further, 1 kg of this crumbled feed was sprinkled with 500 ml of water to obtain a wet crumbled feed. Next, Arbor Acre chicken (1 day old)
Five plots of 80 birds were prepared in each plot, and each plot was fed each of the five types of feed obtained above for five days. Thereafter, the same chicken feed was fed to each group and the chickens were raised until they were 3 weeks old. Average weight per bird at the start of feeding and at 3 weeks of age in each area, average weight gain and average feed intake per bird between the start of feeding and 3 weeks of age, feed conversion ratio (for 1g increase in body weight) Table 1 below shows the number of grams of feed required and the average amount of water consumed per bird up to 7 days of age.
Shown below.
【表】
表１の結果から、本発明の餌付用飼料を使用し
て雛鶏の餌付けを行つた場合には、雛鶏の餌付け
が良好に行われその後の成育も良好であることが
わかる。
実施例 ２
とうもろこし粉48.0Kg、マイロ粉11.3Kg、大豆
粕32.4Kg、北洋ミール２Kg、タロー3.4Kgおよび
ビタミン・ミネラル３Kgを混合した。得られた混
合物を1.2mmの目開きを有する篩を通して篩下の
粉末を分取した（粒径1.2〜1.0mmのもの20重量
％、1.0未満〜0.5mmのもの60重量％、0.5mm未満の
もの20重量％を含有）。この飼料を実施例１と同
様の方法にてクランブル状とし、餌付用配合飼料
を得た。[Table] From the results in Table 1, it can be seen that when chicks are fed using the feeding feed of the present invention, the chicks are fed well and their subsequent growth is also good. . Example 2 48.0 kg of corn flour, 11.3 kg of milo flour, 32.4 kg of soybean meal, 2 kg of northern meal, 3.4 kg of tallow, and 3 kg of vitamins and minerals were mixed. The resulting mixture was passed through a sieve with an opening of 1.2 mm, and the powder under the sieve was collected (20% by weight of particles with a particle size of 1.2 to 1.0 mm, 60% by weight of particles with a particle size of less than 1.0 to 0.5 mm, and 60% by weight of particles with a particle size of less than 0.5 mm. (contains 20% by weight). This feed was crumbled in the same manner as in Example 1 to obtain a mixed feed for feeding.