巻号一覧
20 巻 (1949)
- 4 号 p. 97-
- 3 号 p. 65-
- 2 号 p. 33-
- 1 号 p. 1-
20 巻, 3 号
選択された号の論文の6件中1～6を表示しています
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廣瀬 可恒, 大谷 勲1949 年 20 巻 3 号 p. 65-72
発行日: 1949/10/01
公開日: 2011/01/25
ジャーナル フリーWith the aim to study physiological value of the rumen infusoria to their host ruminants, the following items were investigated with 8 Saanen Goats:(1) the species of infusoria present in rumen of each goat, (2) the time to appear in kid's rumen after birth, (3) the distribution of Infusoria in a goat stomach, (4) the numerical changes of infusoria per cc of rumen contents under the various feeding and hunger conditions and during conception.
(1) The species of infusoria found in those goats' rumen are as follows:
(2) While two kids were fed on milk alone, any Infusoria could not be found in their rumen contents. However some species of Entodinium appeared even in a small number on the third day since they began to receive some hay, and Diplo. maggi did after 8 days.
(3) From our observation of a slaughtered goat's stomach, the infusoria were distributed equally in both the rumen and the reticulum with a great majority (80-90%), but in the omasum only a few were found in dead forms and nane in the abomasum.
From this fact it is considered that the infusoria multiply in the rumen and reticulum, and synthesize protein to construct their own bodies obtaining the raw material from the ingested food, and when they are sent to the abomasum with the ruminated ingesta, infusoria protein may be digested.
(4) The numbers of rumen infusoria varied by changing the ration of their hosts as follows:
From the above data it may be said that the numbers of infusoria increase when the hosts inges a good deal of plant protein, but Diplodinium can not multiply actively in such rumen condition below pH 6.8 as appeared during the oat alone feeding period.
(5) Under the hunger condition the numbern of infusoria decreased promptly, and the rumes content was almost free from infusoria on the 72nd hunger hour.
(6) The remarkable tendency to increase in the number of rumeninfusoria as pregnancy advances which had been pointed out by FERBER was not observed.抄録全体を表示PDF形式でダウンロード (4534K) -
(第III報) 色慾, 外陰部, 膣及び子宮膣部並に膣粘液の周期的變化に關する研究西川 義正, 山崎 良夫1949 年 20 巻 3 号 p. 73-79
発行日: 1949/10/01
公開日: 2011/01/25
ジャーナル フリー馬に於ては陰部の充血, 形状或は膣粘液の性状と性周期の關係は佐藤及星 (1934, 36) の研究により著るしく明かとなつた。余等は驢に於て之等の關係に就き研究して來たが, 之が概要及び馬の場合との比較考察を次に報告しよう。抄録全体を表示PDF形式でダウンロード (2431K) -
(第IV報) 妊娠に關する研究西川 義正, 山崎 良夫1949 年 20 巻 3 号 p. 80-82
発行日: 1949/10/01
公開日: 2011/01/25
ジャーナル フリー姙娠驢2頭2例につき姙娠期間,姙娠中の發情,姙娠中の膣内所見,粘液の性状等に就き觀察し,之を馬の場合と比較考察した。
1)姙娠期間は373日, 371日及び385日にして馬の場合に比し長く,從つて繁殖季節中は成可く早く種付する方が産仔の育成上有効である。
2)姙娠期間中に3例共發情が見られなかつた。
3)膣内所見は粘膜充血なく乾燥し,子宮膣部は緊縮閉鎖してゐた。馬の姙娠診斷法の一たるBENESCH法の應用可否の決定は更に今後の研究に俟つべきである。
4)粘液の肉眼的性状は粘着糊状にして斑點又は絣状に附着する。但し馬に觀られる如き末期と雖も粘液の著るしい増量及び着色がない。粘液の乾燥後に於ける透明性及び光澤の程度は馬の場合に比し弱く,佐藤氏法による馬の姙娠診断法を適用する場合は特に非姙のものとの鑑別に注意な要する。
5)粘液の顯微鏡的所見は細胞その他の成分に於て非姙時のものと同一である。而して繊毛上皮細胞の出現殆ど無き點は馬と著るしく趣を異にし,粘液凝塊及び粘液球の出現の強度なることが姙娠の斷定に有力なる資料となる。即ち黒澤氏による馬の姙娠診斷法を驢に適用する場合繊毛上皮細胞の出現なきか極めて少いことに注意を要する。
6)黄體期に於ける驢粘液の光澤及び透明性に乏しき點と繊毛上皮細胞の少き點とは馬と趣を異にする處にして,之等兩者が相關聯する處があるものと思惟される。
7)馬の子宮の解剖學的並に直腸檢査所見は馬に類し,直腸檢査法により容易に姙娠診斷ずることが出來る。抄録全体を表示PDF形式でダウンロード (901K) -
(第2報) 生後3ケ月仔兎の蛋白質最少必要量について田先 威和夫, 寺田 祐之1949 年 20 巻 3 号 p. 83-86
発行日: 1949/10/01
公開日: 2011/01/25
ジャーナル フリー仔兎育成に際し,正常なる發育をする時の蛋白質必要量を知るために,生後50日内外の仔兎につき甘藷及び蛋白質源飼料(大豆粕50%+麩50%)を用ひて2囘に亙る實驗を行つた。その結果を要約すると次の如くである。
(1)第1次試驗の果榮養比1:3.2では正常なる發育を遂げるが,榮養比1:9.9では澱粉價が充分な場合(體重1kg1日當40g以上)であつても斃死する。
(2)第2次試驗の結果,榮養比1:4.1では正常發育をなし,1:4.4では正常とは云はれないが相當程度の發育を示す。從つて蛋白質の最少必要量は5.9～7.6gの間にある。
(3)榮養比1:7.4～9.9の範團内の或る點,即ち可消化蛋白質3.8g以下の或る値を越えると,仔兎は澱粉價40g以上與へても斃死する。
(4)榮養比1:7.4,即ち可消化蛋白質3.8g以上あれば,仔兎の育成は注意深く行ふ事により辛ふじて可能である。故に此量は略育成可能の限界を示すものである。抄録全体を表示PDF形式でダウンロード (1080K) -
(第1報) 鶏の甲状腺特に換羽期に於ける成鶏甲状腺の細胞學的研究本岡 豊, 伊倉 榮男1949 年 20 巻 3 号 p. 87-91
発行日: 1949/10/01
公開日: 2011/01/25
ジャーナル フリーThe fact that the moulting has been induced primarily by the function of the thyroid is distinctly recongnized by many workers. However, cytological change of gland throughout the phases of the moulting has not yet been described. From the reasons upper-described we have attempted first the cytological observation of the gland.
The results obtained are as, follows:
1. From cytological point of view, thyroids of moulting hens and those of chickens about 30-day old are most hyperactive functionally.
2. The colloid contained in the follicle is stained differently by SEVERINGHAUS' method, namely, red, pale bleu, purple red and sometimes combined these colour tones. The affinity for stains may be refer the percentage of iodine content in the colloid. It may be supposed that newformed colloid materials are stained red, while older ones are stained blue or purple red.
3. Colloidal substance has been found in the interstices of the connective tissue surrouding the Morever, it may be detected in the follicular cells. In the latter case it is stained blue.
4. The formation of young follicle appears numerously in the glands of moulting hen, and 30-day old chick. In these materials, three modes of follicular formation are obseved.
5. The cluster of interfollicular epithelial cells are formed by translocation of follicular cells, but its function is obscure in the morphological observation.抄録全体を表示PDF形式でダウンロード (1643K) -
(第1報) 朝鮮濟州島馬の役力に就て石埼 三郎, 篠原 旭男, 本澤 昌一1949 年 20 巻 3 号 p. 92-96
発行日: 1949/10/01
公開日: 2011/01/25
ジャーナル フリー1. To find out the most suitable size of the farmhorse fit for Japanese farm conditions, the workinrzpower of horses, weighing ca. 200, 300, 400, and500 kg. respectively, is planned to be tested. As theone of 200 kg's body weight, Korean ponies, bornin Quelpart Island, were used.
2. Test animals were 3, e. g. a stallion and twomares of 190 kg in mean body weight and 113 cmin mean body height. They were not under goodconditions, owing to the shortage of fodders, andhave not ever been trained until they were used in experiments.
Endurance, several kinds of practical workingpower and maximum pulling power were tested.Endurance test was made by making animals drawcatrs 3 days successively. Practical working powerswere examined by ploughing, drawing carts, packing, and riding for about 4 hours. Maximum pullingpower was measured by the test of drawing cartsand wagons for a distance of 600 m.
3. Results of the endurance test are as follows:
Korean ponies can draw carts (self weight: 147 kgand load: about 210 kg) 24 km per day for 3 dayssuccessively. In this test, mean draft resistancewas 20 kg (1/9 of body weight) and working timeper day was about 7 hours (including 2 hours ofrest time). Fatigue seemed to recover almost ineach next morning. Daily work was 480, 000 kg inand calculated horse power was ab out 0.25.
In drawing carts (self weight: 14.7 kg and load:480-520 kg) which told 40 kg mean draft resistance, test ponies can draw 8 km per day and worlingtime was about 3 hours (including 1 hour of resttime) per day.
4. Results of the test of some practical workingpowers are as follows:(Ploughing)
Korean ponies can plough about 720 m2 rice field in about 3 hours and a half. In this test ploughing depth was about 11 cm and mean draft restance was 42-45 kg.(Drawing catrs)
Korean ponies can draw carts which told 20 kgmean draft resistance about 13 km for 4 hours(including 1 hour of rest time).(Packing)
Korean ponies can load 80 kg and walk 16 kmfor about 4 hours (including half an hour resttime).(Riding)
In riding in proporti on of 10 minutes walk and5 minutes trot, Korean ponies can go about 18 kmfor about 4 hours (including 1 hour of rest time).Mean speed per-minute is 74 m in walk and 162 min trot.
5. Results of the test of maximum pulling powerare as follows: Tn drawing carts (self weight: 147kg), Korean ponies can draft the load weighingabout 1, 000 kg. In this case, mean draft resistancewas 58-64 kg.
In drawing, wagons, test ponies can draft the loadof 675-850 kg, showing 5.6-66 kg of mean draftresistance.
6. From the above results, it seems that thereare some suitable farm works for these ponies innese small farms.抄録全体を表示PDF形式でダウンロード (1236K)
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