26 research outputs found
The use of chemoprophylaxis in East African Zebu village cattle exposed to trypanosomiasis in Muhaka, Kenya
A study conducted to assess the efficacy of chemoprophylaxis for the improvement of the health and productivity of East African Zebu village cattle exposed to trypanosomiasis. Examines the cost-effectiveness of the treatment. Includes data on calf pre-weaning health and weight traits, weight traits of calves from 12-18 months of age, calf post-weaning health and weight traits, and breeding cow health and production traits - for the non-prophylactic and prophylactic groups
Evaluation of criteria of trypanotolerance
Evaluates teh criteria for trypanotolerance including three related characterstics, v.z. the ability to control parasitaemia, the ability to control anaemia, and the ability to develop an effective immune response
Trypanosomiasis in N'Dama cattle under village management in Zaire
Reports the prevalence species and intensity of trypanosome parasitaenia (1986-1987) for N'Dama cattle managed in village herds inforest and plateau areas of Idiofa, Zaire, Examines tsese challenge & its relationshipto trypanosome prevalence. Reports the duration of infection, pattern of parasitaemia and the effects of trypanosomiasis and other diseases on PCV. Gives preliminary performance data
Factors affecting trypanosome prevalence in Zebu cattle exposed to high trypanosomiasis risk in south-west Ethiopia
Determines factors affecting trypanosome prevalence in Zebu cattle exposed to high trypanosomiasis risk in south west Ethiopia. Studies the occurrence of trypanosome infection in adult cattle, monthly trypanosome prevalence in calves and cattle, prevalence in male and female adult cattle, relation between different levels of PCV in infected and unaffected adult cattle and infection rates
Trypanosomiasis in N'Dama cattle under village management in Zaire
The prevalence, species and intensity of trypanosome parasitaemia over an eighteen-month period, February 1986 to July 1987, are reported for some 700 N`Dama cattle managed in twenty-five village herds in forest and plateau areas of Idiofa, Zaire. The effect of trypanosomiasis and other diseases on PCV was reported. Mean monthly PCV for the total population was 34.9%, with some variation between areas (forest 34.2%, plateau 35.6%) and large variation between herds (31.6 to 40.7). Mean past-partum weight of N`Dama cows in this population was 232 kg, and mean calf weights at 8 and 12 months were 88 and 105kh, respectively. These preliminary results on the health and performance of N`Dama cattle managed in village herds at trypanosomiasis risk were a good illustration of the trypanotolerance of the N`Dama
Preliminary results of a study of N'Dama cattle introduced in a metayage system in Idiofa District, Zaire
Presents preliminary results of a study of N'Dama cattle introduced in a metayage system in Zaire. Studies tsetse relative densities, tsetse challenge, corrected tsetse challenge, trypanosome prevalence and PCV in gallery forest, savanna woodland and grass savanna areas. Also presents data on feeding preferences of G. fuscipes by different animals and illustrates the effects of trypanosome infections in the dam and in the calf on weight of calf
Aspects of trypanotolerance and associations with growth rate in post-weaner N'Dama cattle under high trypanosomiasis risk
A study conducted to find out the ability of N'Dama cattle to control parasitaemia and anaemia at a ranch in Gabon. Examines the effect of parasitaemia on daily liveweight change
Economic aspects of cattle production and of chemoprophylaxis for control of trypanosomiasis in village East African Zebu Cattle in Kenya
Results of a cost-benefit analysis of cattle production and of chemoprophylaxis for control of trypanosomiasis in village East African zebu cattle in Kenya
Genetic aspects of criteria of trypanotolerance
In Mushie ranch, 157 N`Dama progeny of four sires, 95 males and 62 females, were used to estimate the habitability levels for aspects of parasitaemia, anemia control, immune response and animal performance. The males were exposed to a high natural trypanosome challenge, and body weight, trypanosome aspects and PCVS were recorded weekly on eleven occasions covering a ten-week period. The females were exposed to a low natural trypanosome challenge and recorded weekly on eight occasions covering a seven-week period. In the high-challenge and low-challenge situations, the habitability estimates for daily liveweight change were 0.20 and 0.68, respectively. But there was no indication of any of the aspects of parasitaemia being heritable. In males under a high challenge, the habitability estimate for PCV level was 0.15