All issues
Volume 23 (1952)
- Issue 4 Pages 135-
- Issue 3 Pages 85-
- Issue 2 Pages 37-
- Issue 1 Pages 1-
Volume 23, Issue 1
Displaying 1-8 of 8 articles from this issue
- |<
- <
- 1
- >
- >|
-
AKIRA MORI1952 Volume 23 Issue 1 Pages 1-4
Published: 1952
Released on J-STAGE: March 10, 2008
JOURNAL FREE ACCESSFifteen impotent rams were dissected for the purpose of observing their internal organs, particularly the genital organs; the experiment revealed the following results.
The average body weight of the subjects was about 55kg., which suggest that their growth was less than the normal. On an anatomical observation, it was confirmed that 4 of them, besides 3 sick ones, had a prominent obesity about the internal organs and gonads. The development of the testes was poor, weighing 154g in average. Abnormalities of the testes and epididymis included inflammation, markedly smallness in size and their softness. Also colored epididymis (mainly in the caput epididymidis) were observed in 6 rams. The colors were grey, light indigo, brown, and light brown. The macro and microscopic examination of the volume of semen in the cauda epididymidis and ductus deferens showed it was generally poor in amount but normal in density. No azospermia rams were found. Both longevity and mobility of spermatozoa were also poor, but there were no rams with an utterly inactive spermatozoa. Great many abnormal types of spermatozoa, as well as unripened ones were observed in semen of the majority of the rams. Micro-moving cells were present in the colored caupt epididymidis, although the signification of micro-moving cells is still unknown as is also the colored epididymis.
Concerning the fundamental cause of impotency, the writer recognizes that it is probably attributable to inactive spermatogenesis from the results of tardy growth of body and genital organs due mainly nutritional faults. Also the writer considers that it is only of a temporary character.View full abstractDownload PDF (414K) -
AKIRA MORI1952 Volume 23 Issue 1 Pages 5-8
Published: 1952
Released on J-STAGE: March 10, 2008
JOURNAL FREE ACCESSThe inpotent ram, which is recovering its mating capacity, have been observed in relation to its certain exterior character, as well as mating performance and seminal volume, etc.
1) The heavy and well-nourished ram shows better mating performance, and plenty of semen as well.
2) The ram provided with a long hairy scrotum tends to show low mating perfomance.
3) The ram which has high scrotal contractibility is generally recognized to have satisfactory mating performance, and plentiful seminal volume.
4) The larger the testes are, the better mating performance. with sufficient seminal fluid is present.
5) It seems that hard testes show rather unsatisfactory result in mating performance.View full abstractDownload PDF (440K) -
I On the culture of ProtozoaAKASHI AKIRA1952 Volume 23 Issue 1 Pages 9-10
Published: 1952
Released on J-STAGE: March 10, 2008
JOURNAL FREE ACCESSIn this report the method for pure culture of protozoa found in bovine rumen is discussed, and the best method for isolating and culturing the protozoa is here stated, The contents of bovine rumen are treated with 30% HCl solution for from 10 to 30 minntes, or 20% HCl solution for 24 hours, and put in the culture solution which is compound from Ringers solution (8 part) and bovine serum (1 part). When cultured at 37°C for 24 hours, Entodinia are obserbed in all cases, and the bacteria were not found to be alive in the case of the treatment with 10, 20 and 30% HCl soltion. Other protozoa e. g. Dastricha Diplodinium, Isotricha, are to be found when the rumen contents are neutralized by caustic soda after treated with HCl solution.View full abstractDownload PDF (236K) -
SHIGETAKA TAKAHASHI1952 Volume 23 Issue 1 Pages 11-12
Published: 1952
Released on J-STAGE: March 10, 2008
JOURNAL FREE ACCESSA procedure has been detailed for the Preparation of high activity enzyme hyaluronidase from bovin testes under this laborasoryr's conditions. By refraction of the preliminary fractional precipitate which was fractionated between 30% and 70% of saturation with anmonium sulfate, a comparatively voluminous amounts of 16, 000V. R. U. enzyme was obtained between 36% and 60% of saturation with ammonium sulfate.View full abstractDownload PDF (155K) -
H. SAWAZAKI, Y. SETO, T. MIURA, Y. SHIMODA1952 Volume 23 Issue 1 Pages 13-18
Published: 1952
Released on J-STAGE: March 10, 2008
JOURNAL FREE ACCESSWe had an experiment of the respiration of horses during their field-labours with three farm horses, in the stock farm of Tokyo University. Respiration-frequencies and draft-resistances during their exercises; the ploughing, the cultivating and the harrowing, moreover the free-walking as a control; and recoveries of respiration pulse and body-temperature were observed.
And we had the results, that the degree of increasing of respiration-frequencies was in proportion to the intensity of labour during the exercises, and the process of their increasing indicated a waving curve. That is, the respiration-frequencies were increased in harrowing most remarkably, in ploughing were the next, and in cultivating were the smallest; and tne after values were resemble to these relations as mention above in all items.View full abstractDownload PDF (461K) -
MASAHISA MAENO1952 Volume 23 Issue 1 Pages 19-20
Published: 1952
Released on J-STAGE: March 10, 2008
JOURNAL FREE ACCESSComposition of Holstein cow's milk secreted before parturition is more than normal milk and variable.
Only fat content in its milk increase as the parturition draws near and by mean of increasing grade of fat content, specific gravity and viscosity is able to foreknow parturition of cow.View full abstractDownload PDF (195K) -
II Effect of electrical stimulation of the head on broodinessSEIICHI NAKAJO1952 Volume 23 Issue 1 Pages 21-25
Published: 1952
Released on J-STAGE: March 10, 2008
JOURNAL FREE ACCESSAlternate current of 50 cycle and 30 volt was transmitted on the head of sitting hen and its effect on broodiness was examined. Conditions of stimulation were of 3 different types as follows; in A-type, time of transmission was 3 seconds twice with interval of 7 seconds which was repeated after an hour and this type was expressed in {3"-(7")-3"}×2, B-type was expressed in 5"-(15")-5", and C-type in 8"-(30")-8". The results are as follows.
1) Electrical stmuiation of the head interrupted broodiness almost with 1-3 treatments on alternate days.
2) There was no difference in effect on broodiness detween 3 types of stimulation, while C-type was the most intense in action for body of hen and somewhat dangerous. A-or B-type, however, was free from danger.
3) Times of stimulation needed to interrupt broodiness was variable in the same individual, and Nagoya hens seemed to require more times for interruption than Plymouth Rocks, Rhode Island Reds or White Leghorns.
4) There was no relationship between days in broodiness before stimulation and times of stmulation needed to interrupt broodiness.
5) There was no seasonal difference in effect of stimulation.
6) There was no relationship between days of non-laying after broodiness and times of stimulation or days in broodiness.View full abstractDownload PDF (517K) -
HISAYOSHI IWATA, YASUSHI WATANABE1952 Volume 23 Issue 1 Pages 26-28
Published: 1952
Released on J-STAGE: March 10, 2008
JOURNAL FREE ACCESS1) Among the leguminous grasses hairy vetch, wisteria, Lotus corniculatus L., Robinia Pseudo-A-cacia L., Medicago denticulata Willd, japan clover, Lespedeza sericea Miq., soy bean and blue lupine contained some amounts of urease, but other 27 kinds of ordinary leguminous grasses contained little.
2) About 60 kinds of another grasses contained little, excepting Chenopodium album L., Gnaphalium multiceps Wall, Lumex Acetosella L., pumpkin.
3) The content of urease decreased when the grasses were dried.
4) Among the seeds soy bean, Dunbaria villosa Makino (Hime kuzu), pumpkin, water melon contained large amount of urease, but another seeds contained little.
5) Ordinary byproduct feeds contained little, excepting soy bean cake.
6) Rumen contents contained sometimesa small amount of urease.View full abstractDownload PDF (259K)
- |<
- <
- 1
- >
- >|