青刈飼料としてのレンゲに関する研究 : II. 刈取時期と養分收量の関係

昭和28年及29年の2回にわたりレンゲの生育に伴う養分収量の増減状態を調査して次の様な成績を得た。レンゲの生育は年に依り異り, 開花期にも可成りの相異を生ずる。しかし開花の早晩に拘らず凡ての養分収量は満開時前後(第4∿6花開花時)に最高に達し, 以後は粗繊維収量のみ増加して他成分の収量は何れも減少する。従つて青刈飼料としてのレンゲの刈取適期は, 生育の遅速に拘らず常に満開時を目標とすべきであろう。In 1953 and 1954,writers investigated on the decrease and increase of nutrient yield in proportion to the growth of Renge. The growth of Renge varies according to year, therefore flowering time is not uniform too. But the all of nutrient yield reached maximum at the stage of full bloom regardless of sooner or later of flowering, and afterward only the yield of crude fiber increased (Figure 1 and 2). Accordingly, its seems that the best harvesting time as soiling crop always better to aim at the stage of full bloom

鷄雛の発育に対する飼料用抗菌性物質劑の効果 : 1 常用育雛飼料への添加効果

ロック・ホーン初生雛雌を25羽宛の3区に分け, 第1表の如き飼料を與えて飼料用抗菌性物質製剤"コーキン素"の雛に対する発育促進効果を試驗した。得たる結果は次のようである。(1) 試驗成績は第2表の如くで, 試驗終了時には対照区に対してコーキン素"A"区は平均9.1%, コーキン素"B"区は平均2.3%発育が良好であつた。第3表に依りこの差異を檢定するに, 対照区とコーキン素"A"区との間にはt=2.202>t_0 (0.05)で有意なる差のあることが認められたが, 対照区とコーキン素"B"区との間ではt=0.322と抗菌性物質を組合せたコーキン素"A"には明かに鷄雛の発育を促進する効果があるがvitamin B_を含まぬコーキン素"B"は無効である。(2) 死亡率・活力・羽裝の遅速及び下痢等に対する"コーキン素"の影響は特別に認められなかつた。The effect of marketing antibiotic supplement "Kokinso" on the promoting growth of chicks was studied. Day old Rock-horn female chicks were used in this studies. The chicks were assigned to three lots with 25 chicks in each groups and were fed rations as shown in Table 1. These feed and water were supplied ad libitum. A summary of the results obtained are as follows. (1) The data of this experiment summarized in Table 2. This table shows that the average gain percentage at final of the chicks fed Kokinso "A" was increased 9.1%, and that of Kokinso "B" was increased 2.3% than the chicks fed basal ration only. The results of T-test to these difference with Table 3 showed that a significant difference existed between the control lot and the Kokinso "A" lot (t=2.202>t_0 (0.05)), but not for the Kokinso "B" lot versus control lot (t=0.322) is not effective. (2) In this investigation, no difference on the mortality, vitality, feathering and scour between the each lots was observed

京都市上加茂に於ける和牛の理想肥育飼料について

A wide variety of methods are used in fattening cattle at Japan. Choice grade beef to use as a "Sukiyaki" (beef cooked in Japanese style) are produced by long feeding, which the feeding period to reach nearly year or more, and generally termed a "Ideal fattening" (Riso-hiiku). The conditions of feeder cattle which are used in this fattening are as follows. 1) Breed : Japanese Black Breed of Cattle. 2) Sex : Heifer. 3) Age : About 36 to 62 month. 4) Weight : About 375 to 450Kg. 5) Weight of aim at finished : About 550 to 600Kg. At this day, Kamigamo in Kyoto is noted for its producing district of best fattening cattle. The writer investigated for the kind and amount of feeding stuffs, and method of management in fattening cattle at Kamigamo. The main point of data obtained by this investigation are as follows. (1) The kinds of feeding stuffs such as wheat bran, rice bran (oil extracted), polished naked barley, rice straw and polished rice (finishing only) are used commonly. In addition to these, soybean-oil cake, green grass, naked barley bran and remnant of Tofu (bean-curd) are used comparatively. Amounts of these feeding stuffs per day per head are shown in Table 1. All of the feeding stuffs except green grass are always used on the boil or steam with boiling waters. (2) Consumption per 1000Kg. body weight of dry matter, digestive crude protein and total digestive nutrient were calculated from this data, and compared with MORRISON\u27S or KELLNER\u27S feeding standard. Consequently, it seems to be fairly low. In other words, it seems that the "Ideal fattening" is fed with relatively small amount of nutrients and longer feeding of period than the foreign cases. [table

燒豚製造に関する研究 : I. Salting に於ける NaCl の滲透性について

saltingに於けるNaClの滲透量について実験した結果を要約すれば次の様である。(1) NaCl濃度の増すに従い滲透量は増加し, 其の増加程度は濃度の大なる程大きい。(2) 浸漬日数の増すに従い滲透量は増加し, 其の増加程度は日数が増すに従い減少する。(3) 温度が増すに従い滲透量は増加する。此の場合の増加程度は本実験では明瞭でない。(4) pickle curingによる肉重量の増加に関してはNaCl濃度の小なる程大きい。但し肉重量が減少し初める濃度については明らかに断定出来ない。本実験はNaClの肉への滲透量のみであるので, 焼豚製造に於ける調味液の配合, 及浸漬日数等後日実験の結果を待つて結論づけたい。A summary of results obteined by this experiment on the osmotic action of NaCl in the salting are as follows. 1. The osmotic capacity of NaCl increase in proportion to its density and the increasing degree is enlarged as the density mode strong. 2. The osmotic capacity increase in proportion to days, the less its rate. 3. In the respect of osmotic capacity to the temperature, the fomer increase in proportion as the latter rises and the rate of increase is not clear in this experiment. 4. About the change of the weight of meat by pickle curing, its weight increases up to the certain point of density and on the controry, over the point, as the density be comes larger, its rate decrease. But the density in which point to weight begines to decrease cannot be concluded clearly in this experiment. In addition to this fact the experiment refers only to the osmosis of NaCl, so about the conbination of condements and steeped days in the manufacturing of chinese type pork-steak, we showed like to judge by the results of next experimen

有精卵と無精卵の保存中における卵質に及ぼす洗卵の影響(農学部門)

有精卵と無精卵に対する洗卵処理が室温保存中の卵質に及ぼす影響について検討を行った。シェーバー・スタークロス288よりえた有精卵540個と無精卵540個を用い, その半数を台所用洗剤を加えた温水で洗卵した洗卵区と残りを無処理の対照区とした。室温で15日間保存し, 0日目・1日目・3日目・5日目・7日目・9日目・11日目および15日目に卵質(卵白高・Haugh unit・卵黄高・卵黄直径・卵黄係数)と卵重の変化を測定した。有精卵と無精卵ともに保存日数が増すにつれて卵質は有意に減少した。また, 有精卵と無精卵ともに洗卵処理によって卵白高, Haugh unit, 卵黄高は有意に低下した。しかしながら, 卵重の変化と卵黄直径および卵黄係数の変化はわずかであり洗卵による影響は認められなかった。The effects of washing with kitchen soap on the interior qualities of fertile and infertile cheken eggs during the strage were studied. Egg were divied into 4 groups, (1) None washing fertile eggs. (2) None washing infertile eggs. (3) Washing fertile eggs. (4) Washing infertile eggs. All eggs were kept at room temperature (about 25℃) for 0,1,3,5,7,9,11 and 15 days and were broken for the measurements of interior qual ities of eggs. Alubumen height and Haugh unit of fertile and infertile egg were signi ficantly decreased by washing as the strange days advanced. However, there was no effect of washing on the egg weight loss, yolk diameter and yolk index during the strage

青刈飼料としてのレンゲに関する研究 : I. 刈取時期と成分の関係

レンゲの刈取時期と成分の関係を調査するため昭和27年4月14日より5日毎に地上部の分析を行い, 次の如き成績を得た。(1) 本調査のレンゲは4月下旬より開花し始め, 5月中旬が満開期である。その間, 水分・粗脂肪・可溶無窒素物・粗灰分の各成分含有率には殆んど変化が認められなかつた。しかし, 粗蛋白質含量は生育が進むに従つて減少し, 粗纎維含量は逆に増加する。しかも兩者の増減は開花期以後特に顯著である(第1図)。(2) 後続実施せる秤刈り試験の成績より, 仮りに開花各期の坪当り養分收量を算出した結果(第2図), 凡ての養分收量は満開時に最高となり以後粗纎維のみ増加して他成分は減少する様であるから, 満開時或はその直前が青刈りとしての收穫適期であらう。Renge (Chinese milk vetch : Astragalus sinicus L.) is chief autumn seeding crops as a forage of green manure in Japan. The writers studied on the relation between the harvesting time and the chemical composition of Renge. The summary of results obteined are as follows : (1) In this experiment, the flowers of Renge is begining to bloom at the end of April, and in full bloom at the middle of May. During this period, the very slight variation of water, crude fat, nitrogen-free extract and crude ash content were observed, but the decrease in crude protein and the increase in crude fiber observed in propotion to the growth. Moreover, the decrease and increase of both content were specially remarkable after stage of bloom (Figure 1). (2) The nutrient yield per tsubo (3.3 sq. m.) reached the maximum at the stage of full bloom, and afterward only the crude fiber increased (Figure 2). Its seems, therefore, that the best harvesting time is the stage of full bloom or immediately before

京都市内市販鶏卵卵質の季節的変動(農学部門)

1988年8月(夏季)より1989年4月(春季)までの間, 白色卵殻鶏卵についてスーパーマーケット13店舗(供試鶏卵数1050個), 小売店4店舗(190個)褐色卵殻鶏卵についてスーパーマーケット8店舗(390個), 小売店8店舗(440個)より鶏卵を購入し, その卵質の季節的変化を調査した。卵質はハウユニット(以下HUと略す)と卵黄係数(以下YIと略す)を測定し比較した。HUは季節的変動が大きく, 夏季において有意に低い値を示し, 逆に, 冬季においては有意に高い値を示した。また, スーパーマーケットの方が小売店に比較してHUは高い値であった。夏季においてはHUのAA級とA級の占める比率は全体の50%以下であった。白色卵殻鶏卵のHUは褐色卵殻鶏卵のHUより有意に高い値であった。スーパーマーケットと小売店の鶏卵のYIにおいても季節的変動は大きく, 夏季において有意に低い値であった。From August in 1988 to April in 1989,seasonal changes in interior quality of eggs collected from super markets and personal retail stores in Kyoto City were studied. White shell eggs were purchased from 13 super markets (1050 eggs) and from 4 personal retail stores (190 eggs). Brown shell eggs were purchased from 8 super markets (390 eggs) and 8 personal retail stores (440 egs). Significant seasonal variations were observed in haugh units of eggs. Haugh units was low in summer and high in winter. Haugh units of eggs from super markets were higher in relative to those from personal stores. In summer, ratio of AA and A egg grade based on haugh units were less than 50% of total eggs. Haugh units of white shell eggs were significantly higher than those of brown shell eggs. Significant seasonal variations were also observed in yolk index of eggs and yolk index was lowest in summer