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1941 Onderstepoort Journal of Veterinary Science and Animal Industry, Volume 16, 1941
Contentes Pages: Onderstepoort Journal of Veterinary Research, Vol ??, 19??
CONTENTS |
|
Volume 16: Numbers 1
& 2 |
|
Section I: Virus Diseases
|
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The
transmission of tick-bite fever by the dog tick Rhipicephalus sanguineus,
Labr.
|
Neitz, WO, Alexander, RA & Mason, JH |
9 |
|
Studies
on the neurotropic virus of horsesickness. VII. Transmitted immunity
|
Alexander, RA & Mason, JH |
19 |
|
The
particle size of African horsesickness virus as determined by ultrafiltration
and ultracentrifugation
|
Polson, A |
33 |
|
The
electrophoresis of the neurotropic virus of horsesickness and its neutralizing
antibodies in low concentration
|
Polson, A |
51 |
|
Section II: Bacteriology
|
|
The
diagnosis of chronic streptococcus mastitis: reaction, chlorine, methylene
blue and Hotis tests, and microscopic examination
|
Van Rensburg, SWJ |
69 |
|
Further
studies on the antigenic structure of paratyphoid bacilli with special reference
to three new species of Salmonella
|
Henning, MW, Rhodes, WF & Gordon-Johnstone, J |
103 |
|
Section III: Parasitology
|
|
Description
of a tick Rhipicephalus glabroscutatum, sp. nov., (Ixodidae) from the Karroo
areas of the Union of South Africa |
Du Toit, R |
115 |
|
Section IV: Pharmacology and Toxicology
|
|
Recent
investigations into the toxicity of known and unknown poisonous plants in
the Union of South Africa. XI
|
Steyn, DG & Van der Walt, SJ |
121 |
|
South
African Senecio alkaloids. Part 5. Notes on Isatidine, Rosmarinine and Pterophine,
and on the structure of their necines and necic acids
|
De Waal, HL |
149 |
|
Section V: Nutrition
|
|
The
endogenous nitrogen metabolism of pigs with special reference to the maintenance
protein requirement
|
Du Toit, BA & Smuts, DB |
169 |
|
A
study on the possibility of cystine synthesis in the rumen of sheep together
with the effect of cystine supplementation on the nitrogen utilization of
lucerne in young stock
|
Smuts, DB, Du Toit, BA & Van der Wath, JG |
181 |
|
The
nutritive value of animal proteins: the biological values of fishmeal, whale
and fishmeal, meatmeal, meat and bonemeal, crayfishmeal, and white fishmeal
|
Du Toit, BA & Smuts, DB |
191 |
|
The
carotene content of some South African feeds
|
Myburgh, SJ |
199 |
|
Section VI: Sex Physiology |
|
Bionomic
studies on cattle in the semi-arid regions of the Union of South Africa.
IV. The ovarian cycle of heifers during summer
|
Quinlan, J, Bisschop, JHR & Adelaar, TF |
213 |
|
Sex-physiology
of sheep. Studies on the nature of the onset of oestrus in ewes following
a period of sexual inactivity
|
Quinlan, J, Steyn, HP & De Vos, D |
243 |
|
Observations
on artificial insemination of sheep with fresh and stored semen
|
Quinlan, J & Steyn, HP |
263 |
|
A
preliminary note on the temperature of the scrotal skin of the bull and
its relation to air, skin, and body temperature
|
Quinlan, J & Riemerschmid, G |
299 |
|
Section VII: Pathology |
|
A
note on the influence of a bloodmeal ration on porphyrin excretion in normal
bovines
|
Roets, GCS |
315 |
|
Section VIII: Zootechny |
|
Growth
of the Albino rat with special reference to the influence of environment
|
Murray, GN |
331 |
|
Section IX: Wool Research |
|
Studies
on the basic characteristics of South African Merino wool IV. Scaliness
|
Bosman, V & Van Wyk, CM |
543 |
|
Author
index
|
|
555 |
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Subject
index
|
|
557 |
|
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|
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Recent Submissions
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Anonymous; Du Toit, P.J.
(Pretoria : The Government Printer, 1941)
-
Anonymous; Du Toit, P.J.
(Pretoria : The Government Printer, 1941)
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Bosman, V.; Van Wyk, C.M.; Du Toit, P.J.
(Pretoria : The Government Printer, 1941)
A study of the scaliness of South African Merino wool samples
showed that the percentage differences in friction between the two
directions varied from 3.0 per cent. to 130 per cent. At 70 per cent.
relative humidity ...
-
Murray, G.N.; Du Toit, P.J.
(Pretoria : The Government Printer, 1941)
Observations were made on Albino rats over a period of four
years (1933-37); 238 litters were obtained comprising 2043 young at
birth; 1789 (872 males and 917 females) were reared and weighed
weekly.
PRENATAL GROWTH.
(a) ...
-
Roets, G.C.S.; Du Toit, P.J.
(Pretoria : The Government Printer, 1941)
Results are presented showing the effect of dietary bloodmeal on
the porphyrin excretion of four mature normal steers.
Bloodmeal causes a higher excretion in the faeces of copro- and
chloroform soluble porphyrins. The ...
-
Quinlan, J.; Riemerschmid, G.; Du Toit, P.J.
(Pretoria : The Government Printer, 1941)
(1) The scrotal, skin, and body temperatures of a Sussex bull have been measured in the open during the period 7.1.41 to
27.3.41, at a range of air temperature of 26.4°F., i.e., from 64.8°F. to 91.2°F.
(2) There was a ...
-
Quinlan, J.; Steyn, H.P.; De Vos, D.; Du Toit, P.J.
(Pretoria : The Government Printer, 1941)
(1) One hundred and ninety-six merino sheep, maintained under
dry lot conditions, were submitted to artificial insemination with
fresh and stored semen obtained from highly fertile merino rams.
The resulting pregnancies ...
-
Quinlan, J.; Steyn, H.P.; De Vos, D.; Du Toit, P.J.
(Pretoria : The Government Printer, 1941)
1. Ninety-nine maiden Merino ewes, between the ages of 27 and 33 months, kept in an enforced environment in "dry lot" were submitted to a 3 hourly test for oestrus, from 6 p.m. to 6 a.m., at the commencement of the usual ...
-
Quinlan, J.; Bisschop, J.H.R.; Adelaar, T.F.; Du Toit, P.J.
(Pretoria : The Government Printer, 1941)
(a) To obtain information concerning the sexual activity of cattle under the environmental conditions prevailing in the north western, semi-arid, summer rainfall areas of the Union of South Africa, a series of sex-physiological ...
-
Myburgh, S.J.; Du Toit, P.J.
(Pretoria : The Government Printer, 1941)
1. Carotene values were determined by analysing veldgrass samples, collected monthly in the areas, Onderstepoort (Pretoria district), Ermelo (Transvaal Highlands) and Vryburg (Bechuanaland).
2. From the values for Carotene ...
-
Du Toit, B.A.; Smuts, D.B.; Du Toit, P.J.
(Pretoria : The Government Printer, 1941)
By means of nitrogen metabolism experiments, the biological values of 94 for white fishmeal, 81 for crayfishmeal, 71 for fishmeal, 67 for meatmeal, 67 for meat and bonemeal and 63 for whale and fishmeal were determined. ...
-
Smuts, D.B.; Du Toit, B.A.; Van der Wath, J.G.; Du Toit, P.J.
(Pretoria : The Government Printer, 1941)
By means of metabolism experiments on rats it was shown that the biological value of the rumen ingesta is better than that of lucerne. When rumen ingesta are supplemented by cystine their biological value is significantly ...
-
Du Toit, B.A.; Smuts, D.B.; Du Toit, P.J.
(Pretoria : The Government Printer, 1941)
The endogenous nitrogen metabolism of pigs have been measured and an equation evolved for the estimation of the maintenance protein requirements of pigs. The equation obtained is P=0.79 W·⁷³⁴, where P=protein in grams, and ...
-
De Waal, H.L.; Du Toit, P.J.
(Pretoria : The Government Printer, 1941)
1. Isatinecine has a pyrrole nucleus and has no tertiary nitrogen atom. It must, therefore have a secondary aminogroup. The pyrrollizidine structure applicable to the two senecio bases retronecine and platynecine is, ...
-
Steyn, D.G.; Van der Walt, S.J.; Du Toit, P.J.
(Pretoria : The Government Printer, 1941)
The toxicity of sixteen plants was investigated. According to
the available literature the following three plants were proved for
the first time to be toxic: Senecio pterophorus DC; Kalanchoe
paniculata Harv., Kalanchoe ...
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Du Toit, R.; Du Toit, P.J.
(Pretoria : The Government Printer, 1941)
A new species of tick from domestic stock is described and figured belonging to the genus Rhipicephalus. It closely resembles R. oculatus, Neumann, a common species on hares in South Africa from which it may be distinguished ...
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Henning, M.W.; Rhodes, W.F.; Gordon-Johnstone, J.; Du Toit, P.J.
(Pretoria : The Government Printer, 1941)
Three new species of Salmonella are described.
1. S. durban was obtained from an adult native woman suffering from dysentery. The antigenic formula allocated to it was IX-a, enx.
2. S. reading var. kaapstad was isolated ...
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Van Rensburg, S.W.J.; Du Toit, P.J.
(Pretoria : The Government Printer, 1941)
(1) An account is given of the abnormal conditions which may be encountered in the bovine udder and its secretion in chronic streptococcus mastitis. It is pointed out that, on account of these different manifestations of ...
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Polson, A.; Du Toit, P.J.
(Pretoria : The Government Printer, 1941)
1. By means of a modified form of the moving boundary method of electrophoresis of Tiselius, it was found possible to measure the rate of migration as well as the isoelectric points of viruses and their neutralizing ...
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Polson, A.; Du Toit, P.J.
(Pretoria : The Government Printer, 1941)
(1) Details of the technique employed for the preparation of gradocol membranes are given together with the technique employed in the filtration of neurotropic horsesickness virus.
(2) From data collected from the ...
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