The reproductive output of Shorea siamensis, a widespread dipterocarp tree, was assessed in relation to disturbance and tree density at three sites in western Thailand during the 1996 and 1997 flowering seasons. The locations were similar except in disturbance history, which was reflected in decr...
Ghazoul, J.
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Liston, K.A.
,
Boyle, T.J.B.
,
[Disturbance-induced density-dependent reproductive success in a tropical forest tree]
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Disturbance-induced density-dependent reproductive success in a tropical forest tree
The mating system in 11 natural populations of Pterocarpus macrocarpus Kurz in Thailand was investigated based on the mixed mating model using 16 isozyme markers. Single-locus outcrossing rates (tm) ranged from 0.719 to 0.959. Both ts and tm revealed a geographic pattern with western populations ...
Liengsiri, C.
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Boyle, T.J.B.
,
Yeh, F.C.
,
[Mating system in Pterocarpus macrocarpus Kurz in Thailand]
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Mating system in Pterocarpus macrocarpus Kurz in Thailand
Presents the results of a survey of small ruminant owners in four southeastern states of Nigeria, viz, Bendel, Anambra, Imo and Cross River. Relates livestock management systems to their socioeconomic and ecological environment and inturn to management practices and to characteristic problems an...
Traditionally, Indian farmers kept bovines, especially cattle, for draught purposes in agriculture and transportation with milk as an adjunct. However, with increasing farm mechanization and rising demand for milk, the bovine functions have shifted more towards dairying. While bovine population h...
Kishore, A.
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Birthal, P.S.
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Joshi, Pramod K.
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Shah, Tushaar
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Saini, A.
,
[Patterns and drivers of dairy development in India: insights from analysis of household and district-level data]
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Patterns and drivers of dairy development in India: insights from analysis of household and district-level data
Morales, Francisco José
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Rivera Fagundo, EE
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[Situación actual del mosaico dorado del frijol en la América Central: El Salvador]
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Situación actual del mosaico dorado del frijol en la América Central: El Salvador
With a limited number of cash cropping areas, sub-Saharan Africa has the lowest level of mechanization including animal-driven implements and use of tractors. In this paper previous research is reviewed to evaluate the economic and ecological constraints to animal draft cultivation. Results of pa...
Ehui, Simeon K.
,
Polson, R.
,
[A review of the economic and ecological constraints on animal draft cultivation in sub-Saharan Africa]
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A review of the economic and ecological constraints on animal draft cultivation in sub-Saharan Africa
Agriculture is the mainstay of the country and also the major source of employment and income. About 85 percent of the population live in the rural areas and are primarily engaged in agriculture and related activities. Among the other agricultural sector, livestock production contributes about 30...
Bizuwork, A.
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Tadddesse, G.
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Sonder, Kai
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Peden, Donald G.
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Jobre, Y.
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[Comparative assessment of forage and livestock density in Tekeze River Basin]
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Comparative assessment of forage and livestock density in Tekeze River Basin
Discusses the design of breeding programmes for stressful environments. Identifies the relationship between adaptive traits and productive traits, the Development of breeding objectives and selection criteria. Includes economic objectives, heat tolerance, feed intake, disease resistance and the r...
Franklin, I.R.
,
Trail, J.C.M.
,
[The design of breeding programmes for stressful environments]
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The design of breeding programmes for stressful environments
The paperreviews information on the White Fulani cattle under the headings; origin, classification, distribution, population statistics, ecological settings, utility, husbandry practices, physical characteristics, special genetic characteristics, adaptive attibutes and performance characteristics...