From biological data collected between January 1986 and December 1989, and economic data collected during 1988, 10-year projections of herd structure, production, and economic and financial returns were calculated for 13 village cattle herds at two village sites in the Gambia. The analyses indica...
Itty, P.
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Swallow, B.M.
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Rowlands, G.J.
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Agyemang, K.
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Dwinger, R.H.
,
[Economics of village production of N'Dama cattle in the Gambia]
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Economics of village production of N'Dama cattle in the Gambia
Location performance of N’Dama cattle was recorded under village management conditions in four ecological variable villages in the Gambia. A total of 636 cows were recorded during the study. The highest daily milk offtake 1.7 kg/cow/day took place when cows were 4 – 6 weeks post-partum. Daily mil...
Agyemang, K.
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Jeannin, P.
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Grieve, A.S.
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Bah, M.L.
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Dwinger, R.H.
,
[Milk extraction for human consumption from N'Dama cattle under village management conditions in The Gambia]
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Milk extraction for human consumption from N'Dama cattle under village management conditions in The Gambia
The experiments took place in the villages of Pirang (low trypanosomiasis risk), Keneba and Nioro Jattaba (low-to-medium trypanosomiasis risk). In Nioro Jattaba, cows milked once a day while in the other two villages cows milked twice a day. In Pirang and Keneba, 45 calves taken from each village...
Riley, J.A.
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Agyemang, K.
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Dwinger, R.H.
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Jeannin, P.
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Grieve, A.S.
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Little, D.A.
,
[N'Dama cattle production in relation to nutritional interventions in villages in The Gambia]
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N'Dama cattle production in relation to nutritional interventions in villages in The Gambia
Quantifies the effects of postpartum body weight changes on subsequent reproductive performance of N'Dama cattle managed under traditional husbandry systems in Gambia. Analysis of body weights from 4 months before conception to the month of conception showed that 71 percent of cows were gaining w...
Agyemang, K.
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Little, D.A.
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Bah, M.L.
,
[Effects of postpartum body weight changes on subsequent reproductive performance in N'Dama cattle maintained under traditional husbandry systems]
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Effects of postpartum body weight changes on subsequent reproductive performance in N'Dama cattle maintained under traditional husbandry systems
Reviews the results of on-farm experiments conducted to study the effects of milking on calf viability and growth, on the reproductive performance of cows and on the overall productivity of Ndama herds in the village of Nioro Jattaba in the Kiang West District of The Gambia.
Agyemang, K.
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Dwinger, R.H.
,
Grieve, A.S.
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Little, D.A.
,
[Studies on the effects of milking on calf growth and viability and on cow reproductive performance in traditionally managed N'Dama herds]
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Studies on the effects of milking on calf growth and viability and on cow reproductive performance in traditionally managed N'Dama herds
Rapid population growth (from 498 million in 1990 to 1.2 billion by 2025) and urbanization (from 2.7:1 to 5.1 rural to urban) in sub-Saharan Africa will profoundly influence the demand for food including milk and other dairy products. Since West Africa accounts for over 42 percent of SSA populati...
Investigates the time of appearance and the persistence of antibodies in N'Dama cattle bitten by infected tsetse flies under controlled conditions, the serology of village animals exposed to natural trypanosomiasis risk and the time of appearance and duration of anti-trypanosomal antibodies throu...
Dwinger, R.H.
,
Grieve, A.S.
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Jeannin, P.
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Agyemang, K.
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Faye, J.
,
[Anti-trypanosomal antibodies in sequentially collected sera of N'Dama cattle under natural trypanosomiasis risk in The Gambia]
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Anti-trypanosomal antibodies in sequentially collected sera of N'Dama cattle under natural trypanosomiasis risk in The Gambia
Reports a study of the interaction between trypanosome infections and physiological status on health and productivity in N'Dama cattle managed under traditional husbandry practices in The Gambia. Discusses production environments and herd management, parasite kinetics, erythropoietic response and...
Agyemang, K.
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Dwinger, R.H.
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Little, D.A.
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Leperre, P.
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Grieve, A.S.
,
[Interaction between physiological status in N'Dama cows and trypanosome infections and its effect on health and productivity of cattle]
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Interaction between physiological status in N'Dama cows and trypanosome infections and its effect on health and productivity of cattle
This paper reviews the successful N’Dama cattle genetic improvement programme implemented in a low input productions system at the International Trypanotolerance Centre (ITC) in 1994, in the Gambia. The first part of the paper presents the genetic improvement programme. The second part deals with...
Bosso, N.A.
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Corr, N.
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Njie, M.
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Fall, Abdou
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Waaij, E.H. van der
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Arendonk, Johan A.M. van
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Jaitner, J.
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Dempfle, L.
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Agyemang, K.
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[The N'Dama cattle genetic improvement programme: A review]
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The N'Dama cattle genetic improvement programme: A review
Fall, Abdou
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Agyemang, K.
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[Genetic improvement in medium to low input systems of animal production: The West African experience]
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Genetic improvement in medium to low input systems of animal production: The West African experience