Browsing by Author "Anderson, J."
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Item Artificial Insemination in Cattle Breeding in Kenya(1949) Anderson, J.The development of artificial insemination provides one of the best examples in our time of the impact of science on practice and of the stimulus to each which the interaction creates. It has fostered much intensive study on a variety of problems of male and female fertility which has led to a considerable increase in our knowledge of reproductive processes. Progress and success in artificial insemination has been greatest in those countries in which active fundamental and applied research work on problems of reproduction has been done and we in Kenya have been fortunate in having facilities for this work hand also in having the willing co-operation of many farmers in testing out ideas on a large scale in practice.Item Sterility(1938) Daubney, R.; Hudson, J.R.; Anderson, J.; Veterinary Department, Kenya ColonyThe first cases of this disease were seen in Kenya about 1928, and since that date it has been recognized on many European farms throughout the settled areas. The disease occurs in pure-bred bulls of almost all the European breeds, and in both high- and. low-grade bulls. The Maasai apparently know the condition, and refer to it by the same name as that used by them for gonorrhoea in man.Item Wastage in the Herd(1957) Anderson, J.The length of productive life of the cow and the useful life of the bull are obviously of great economic importance. Milk Marketing Board records show that only about one cow in eight lives to reach her best performance in the 6th lactation or thereabouts. The longer a cow is in use, the greater production there is to carry costs of rearing or purchase, and more calves are produced for heifer replacements, giving a better chance of effective culling. Also, the fewer' replacements that are required each year, the higher the degree of selection of female stock that can be made.