ANIMAL INDUSTRY 421 



(Tanganyika, Veterinary, 1934, D.R., p. 73). Good types of 

 native stock have been graded up by the use of sires of proved 

 European breeds in experiments which were started at Dar-es- 

 Salaam about 1923. Herds of half-grade Friesian and Ayrshire 

 cows were eventually obtained, and the latter have been moved 

 to Mpwapwa. The conclusion reached is that the half-grade 

 animals give more milk than the native stock, and what is per- 

 haps more important, they are more tractable and can be induced 

 to yield milk without the presence of a calf at milking time. 

 The three-quarter breds are again better and are bigger and 

 finer beasts, but it is considered that the larger frame and earlier 

 maturity involve such an increased demand for food that they 

 may be less valuable to the territory. Native animals have 

 also been crossed with the Krishna Valley Zebu, but when the 

 offspring were found to be intractable creatures, although the 

 parent stock were noticeably docile, the experiment was aban- 

 doned. The acclimatization of Indian buffaloes has been tried: 

 they have proved good milkers, but require more food than native 

 cattle and are susceptible to trypanosomiasis. Attempts, so far 

 unsuccessful, are being made to see if the Indian buffalo can be 

 crossed with the African one in the hope of producing a domestic 

 animal suitable for tropical Africa. This is a particularly interest- 

 ing experiment when it is considered how few animals have been 

 domesticated by man and how perfectly the game animals of 

 Africa are adapted to their environment. It is worth noting in 

 this connection that in various parts of Africa the Eland, the largest 

 of the antelopes, has been partly domesticated and kept with herds 

 of cattle. The government stock farm of 5,000 acres at Njombe at 

 an altitude of 5,000 to 6,000 feet was instituted in 1929 for the 

 supply of improved stock to settlers and for general experiment. 

 Here as elsewhere it has been found that the herbage is deficient 

 in nutritive quality so that improved stock require extra feed in 

 the dry season. Large-scale work with sheep has given no results 

 and only small trials with cattle are being continued. (Tangan- 

 yika, Veterinary, 1933, 1934, 1935, D.R.) 



In Kenya a general improvement of native stock should ensue 

 from the compulsory culling of ill-conditioned animals in the native 

 reserves, so strongly recommended in the report of Sir Daniel Hall's 



