Toxic broth filtrates of one A, one B, six C, and one D types Cl. botulinum, and the antitoxins produced by injecting these filtrates into goats have been tested, from the standpoint of working out the antigenic "make up" ...

1. The transmission of heartwater to three blesbuck and a black wildebeest is discussed. 2. The virulence of the heartwater “virus” did not change by passage through the antelopes. 3. The antelopes did not show any ...

1. It was found that the black-wildebeest was susceptible to A. marginale but no clinical symptoms were noticed. 2. Neither P. bigeminum nor Th. mutans could be transmitted to the black-wildebeest. 3. A. marginale neither ...

Although the investigations recorded in this paper have not resulted in the isolation of the toxic principle of the Gifblaar, Dichapetalum cymosum in a state of chemical purity, it is felt that certain valuable information ...

1. Controlled serving revealed irregularities with regard to fertility in rams and ewes. The fertility of a ram can be assured only by breeding trials or by sperm tests. Old Merino ewes are unsatisfactory and uneconomical ...

(1) Six groups of young wethers were kept on a production ration for two years. During the second year five of the groups received supplements of sulphur and of compounds containing sulphur, the sixth group acting as ...

Data are presented on the growth of range cattle over a period of four years in a semi-arid region of South Africa. A total of 176 half-bred animals of five different breeds are included in this study. The data consist ...

The paper attempts to give a synoptic and constructive account of our present day knowledge on the problem of prussic acid in grasses and urges that the investigations should be made in a more academic spirit. A list of ...

The cyanogenetic glucoside Linamarin has been isolated from a species of Dimorphotheca, probably Dimorphotheca fruticosa. The leaves of the plant contain approximately 1.5gm of HCN per 100gms.