1934 Onderstepoort Journal of Veterinary Science and Animal Industry, Volume 3, 1934

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Contentes Pages: Onderstepoort Journal of Veterinary Research, Vol ??, 19??

CONTENTS

*Volume 3: Number 1*

Section I: Virus Diseases

Heartwater in sheep. The Weil-Felix reaction and an investigation into the bacterial content of the blood with particular reference to the use of K-medium	Mason, JH & Alexander, RA	7

Section II: Parasitology

A search for tick parasites in South Africa	Cooley, RA	23

Results of a mosquito survey at Onderstepoort during the summer 1931/ 32 in connection with the transmission of horsesickness	Nieschulz, 0, Bedford, GAH & Du Toit, RM	43

Handling mosquitoes for experimental purposes under South African conditions	Nieschulz, 0 & Du Toit, RM	79

Echinococcus in dogs from Pretoria and vicinity	0rtlepp, RJ	97

Section III: Poisonous Plants

Isolation of the poisonous principle of Dimorphotheca cuneata Less	Marais, JSC & Rimington, C	111

Plant poisoning in stock and the development of tolerance	Steyn, DG	119

Recent investigations into the toxicity of known and unknown poisonous plants in the Union of South Africa	Steyn, DG	125

Section IV: Physiology

Studies on sex physiology. XI. The relationship between a corpus luteum verum and the corresponding pregnant horn	Curson, HH	133

Section V: Studies in Photosensitisation

Studies in the photosensitisation of animals in South Africa. VII. The nature of the photosensitising agent in Geeldikkop	Rimington, C & Quin, JI	137

Section VI: Mineral Deficiency and Metabolism

Recent advances in the chemistry of the plasma proteins and their complexes	Rimington, C	161

A routine method for the determination of soluble ash in plant material	Louw, JG	191

Section VII: Animal Husbandry

The influence of feed on the Merino sheep	Mare, GS & Bosman, V	199

Further notes on lumpy wool in South Africa	Mason, JH & Bekker, .JG	211

The determination of fleece density in the Merino sheep	Bosman, V	217

Fibre fineness of South African Merino wool	Bosman, V	223

Section VIII: Miscellaneous

Anatomical studies No. 41. Prenatal death in the Merino ewe associated with deformity of the cervix uteri	Curson, HH & Belonje, CE	235

Anatomical studies No. 42. Polydactylism in a pig	Van Der Walt,SJ & De Boom, HPA	237

Anatomical studies No. 43. Two cases of missing incisor teeth in the horse	Curson, HH	239

Anatomical studies No. 44. On two anomalies arising from the embryonic small intestine	Curson, HH	241

Anatomical studies No. 45. Synotus in a lamb and a pig foetus	Curson, HH	245

Anatomical studies No. 46. Apus in a pig	Curson, HH	249

Anatomical studies No. 47. Previous urachus in a bull calf	Marais, IP & Sutton, GD	251

Anatomical studies No. 48. On a case of brachygnathia superior in an ox	Curson, HH	253

Anatomical studies No. 49. On a deformity of the shoulder joint in a pig	Curson, HH	255


*Volume 3: Number 2*

Section I: Protozoal Diseases

Eperythrozoon ovis (sp. nov.) infection in sheep	Neitz, WO, Alexander, RA & Du Toit, PJ	263

Section II: Virus Diseases

Investigations into the transmission of horsesickness at Onderstepoort during the season 1931-32	Nieschulz, O, Bedford, GAH & Du Toit, RM	275

Rabies in South Africa. Occurrence and distribution of cases during 1933	Neitz, WO & Thomas, AD	335

Section III: Parasitology

Preliminary note on the life history of Gaigeria pachyscelis (Raill. and Henry, 1910), a hookworm of sheep	Ortlepp, RJ	347

On Habronema murrayi (sp. n.), from the barn owl, Tyto alba	Ortlepp, RJ	351

Section IV: Poisonous Plants

The toxicology of plants in South Africa	Steyn, DG	359

Section V: Sex Physiology

Studies in sex physiology. No. 12. The situation of the developing foetus and the relationship between the pregnant horn and the corresponding corpus luteum verum	Curson, HH & Mare, GS	477

Section VI: Miscellaneous

Anatomical studies. No. 50. A comparison of Hamitic Longhorn, West African Shorthorn, and Afrikander cattle particularly with regard to the skull	Curson, HH & Epstein, H	487

Author index		487

Subject index		487

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Now showing 1 - 20 of 35

On Habronema murrayi sp. n. from the barn owl Tyto alba
(Union of South Africa : Dept. of Agriculture, 1934) Ortlepp, R.J.; Du Toit, P.J.; Union of South Africa. Dept. of Agriculture
No abstract available.
Studies in sex physiology no. 12 : the situation of the developing foetus and the relationship between the pregnant horn and the corresponding corpus luteum verum
(Union of South Africa : Dept. of Agriculture, 1934) Curson, H.H.; Mare, G.S.; Du Toit, P.J.; Union of South Africa. Dept. of Agriculture
It is clear that this page is merely an addendum to Study 10 (dealing with the situation of the developing Merino foetus in utero) and Study 11 (concerning the relationship between the pregnant horn and its associated corpus luteum verum).
Rabies in South Africa : occurrence and distribution of cases during 1933
(Union of South Africa : Dept. of Agriculture, 1934) Neitz, W.O.; Thomas, A.D.; Du Toit, P.J.; Union of South Africa. Dept. of Agriculture
No abstract available.
Anatomical studies. No. 50. A comparison of Hamitic Longhorn, West African Shorthorn and Afrikander cattle particularly with regard to the skull
(Union of South Africa : Dept. of Agriculture, 1934) Curson, H.H.; Epstein, H.; Du Toit, P.J.; Union of South Africa. Dept. of Agriculture
Assuming that the three foundation stocks of African cattle are the Hamitic Longhorn, Brachyceros, and Longhorned Zebu types, it is possible to differentiate between them (a) on account of their conformation, and (b) because of differences in osteology. These differences are tabulated in the text and to emphasize them, photographs accompany the paper.
Investigation into the transmission of horsesickness at Onderstepoort during the season 1931-1932
(Union of South Africa : Dept. of Agriculture, 1934) Nieschulz, Otto; Bedford, G.A.H.; Du Toit, Rene M.; Du Toit, P.J.; Union of South Africa. Dept. of Agriculture
Further notes on lumpy wool in South Africa
(Union of South Africa : Dept. of Agriculture, 1934) Mason, J.H.; Bekker, J.G; Du Toit, P.J.; Union of South Africa. Dept. of Agriculture
(1) The occurrence of further outbreaks of lumpy wool in South Africa is reported. (2) The isolation and morphological and cultural characters of Actinomyces dermatonomus are described. (3) The production of the lesions of lumpy wool in laboratory animals and in sheep by the use of cultures and material from naturally infected sheep is recorded. (4) The probable method of natural infection, and curative measures are discussed..
Author index
(Pretoria : Union of South Africa, Dept. of Agriculture, 1934) Du Toit, P.J.; Union of South Africa. Dept. of Agriculture
The toxicology of plants in South Africa
(Union of South Africa : Dept. of Agriculture, 1934) Steyn, D.G.; Du Toit, P.J.; Union of South Africa. Dept. of Agriculture
No abstract available.
Studies on sex physiology. XI. The relationship between a corpus luteum verum and the corresponding pregnant horn
(Union of South Africa : Dept. of Agriculture, 1934) Curson, H.H.; Du Toit, P.J.; Union of South Africa. Dept. of Agriculture
No abstract available.
Subject index
(Union of South Africa : Dept. of Agriculture, 1934) Author; Anonymous; Du Toit, P.J.; Union of South Africa. Dept. of Agriculture
Preliminary note on the life-history of Gaigeria pachyscelis (Raill. and Henry, 1910), a hookworm of sheep
(Union of South Africa : Dept. of Agriculture, 1934) Ortlepp, R.J.; Du Toit, P.J.; Union of South Africa. Dept. of Agriculture
No abstract available.
Results of a mosquito survey at Onderstepoort during the summer 1931-32 in connection with the transmission of horsesickness
(Union of South Africa : Dept. of Agriculture, 1934) Nieschulz, Otto; Bedford, G.A.H.; Du Toit, Rene M.; Du Toit, P.J.; Union of South Africa. Dept. of Agriculture
Heartwater in sheep : the Weil-Felix reaction and an investigation into the bacterial content of the blood with particular reference to the use of " K " medium
(Union of South Africa : Dept. of Agriculture, 1934) Mason, J.H.; Alexander, R.A.; Du Toit, P.J.; Union of South Africa. Dept. of Agriculture
Anatomical studies, no. 48 : on a case of brachygnathia superior in an ox
(Union of South Africa : Dept. of Agriculture, 1934) Curson, H.H.; Du Toit, P.J.; Union of South Africa. Dept. of Agriculture
No abstract available.
Anatomical studies, no.45 : synotus in a lamb and a pig foetus
(Union of South Africa : Dept. of Agriculture, 1934) Curson, H.H.; Du Toit, P.J.; Union of South Africa. Dept. of Agriculture
No abstract available.
A routine method for the determination of soluble ash in plant material
(Union of South Africa : Dept. of Agriculture, 1934) Louw, J.G.; Du Toit, P.J.; Union of South Africa. Dept. of Agriculture
A routine method for the determination of soluble ash in plant material is described in detail. Evidence is presented to show that the results obtained by this rapid method compare very favourably with those obtained by following the standard procedure.
The fibre fineness of South African Merino wool
(Union of South Africa : Dept. of Agriculture, 1934) Bosman, V.; Du Toit, P.J.; Union of South Africa. Dept. of Agriculture
An analysis of one thousand South African Merino wool samples selected at random and involving the measurement of a quarter of a million fibres is described and fundamental characteristics are demonstrated. Fibre thickness ranges from 7.5µ to 50µ. The bulk, or eighty per cent. of the fibres measure from 12.5µ to 22.5µ. Eighty per cent. of the samples conform to the quality numbers of 60's to 100's. Eleven per cent. are 120's to 150's and it is suggested that these are " hunger fine " and presumably influenced by adverse conditions of nutrition. Eight per cent. are cross-bred and are coarser than Merino quality numbers. As regards coefficient of variability, South African Merino wool ranges from 10 per cent. to 32 per cent. Seventy-nine per cent. of the samples conform to a variability of sixteen to twenty-four per cent. coefficient of variability. The coefficient of correlation between fibre finess and coefficient of variability is given as - • 0754 ± • 0217 and indicates an insignificant correlation. The coefficient of correlation between fibre fineness and crimping is given as - • 617 ± • 0226, which shows a definite correlation, though not a high one. Twenty-eight per cent. of the samples show a perfect agreement between the quality numbers of fibre fineness and those of crimps. The woolman who judges fibre fineness on crimps may err in seventy-two per cent. of his judgments by one, two or even three quality numbers.
The determination of fleece density in the Merino sheep
(Union of South Africa : Dept. of Agriculture, 1934) Bosman, V.; Du Toit, P.J.; Union of South Africa. Dept. of Agriculture
An analysis is given of fleece density by two methods, the counting-weighing method and the weight-volume method and a close agreement between the results is shown. Preference is given to the weight-volume method when in the course of genetic studies on merino sheep a number of routine samples have to be analysed.
Anatomical studies, no. 42 : polydactylism in a pig
(Union of South Africa : Dept. of Agriculture, 1934) Van der Walt, S.J.; De Boom, H.P.A.; Du Toit, P.J.; Union of South Africa. Dept. of Agriculture
Description of a case in which the left foot possessed an additional first digit, to the third phalanx of which was fused the rudiment of another medial digit. The right foot, in addition to its normal digits and fifth accessory digit, showed medially the second accessory and two chief digits of a left foot.
Eperythrozoon ovis (sp. nov.) infection in sheep
(Union of South Africa : Dept. of Agriculture, 1934) Neitz, W.O.; Alexander, R.A.; Du Toit, Peet J.; Union of South Africa. Dept. of Agriculture
A brief review of a portion of the literature on Bartonella, Grahamella and Eperythrozoon is given. A new species of blood parasite of sheep is described for which the name Eperythrozoon ovis is proposed. The symptomatology of the disease produced by Ep. Ovis is detailed. The tentative proposal is made to unite the four genera Anaplasma, Grahamella, Bartonella and Eperythrozoon into one family the Anaplasmidae.

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