Mountain and moorland pony breeds modern mountain and moorland ponies have been regarded as including nine breeds (the four Welsh types being counted as one). However, in recent decades at least two further types have been recognised: the Eriskay and the Kerry bog pony. Larger native British Isles horses (such as the various large draught breeds) are not regarded as belonging to the mountain and moorland group. Mountain and moorland ponies are generally stocky in build, with flowing mane and tail. They are very hardy and are "good doers", needing relatively little food to live on. They are prone to obesity and if allowed to
Animal trypanosomiasis some breeds of cattle, notably the N'Dama – a West African "Bos taurus" breed. This contrasts with the susceptibility shown by East African "Bos indicus" cattle such as the zebu. Most trypanosomes develop in tsetse flies (Glossina spp.), in its biological vector, about one to a few weeks. When an infected tsetse fly bites an animal, the parasites are transmitted through its saliva. It can also be spread by fomites such as surgical instruments, needles, syringes. The most important vectors are thought to be horseflies (Tabanidae) and stable flies (Stomoxys spp.). The immune response of animals could be unable to