In this overview, the results of studies in France were given on the genetic variability in resistance to helminth parasites in Romonov and Merino d'Arles sheep and Saanen and Alpine goats. The paper focusses on diversity of helminth parasites, innate vs acquired resistance, criteria for genetic ...
Gruner, L.
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[Overview of genetic basis of resistance to endoparasites in small ruminants]
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Overview of genetic basis of resistance to endoparasites in small ruminants
This study has undertaken to describe the sheep and goat production and marketing systems and identify constraints to and improvement options for smallholder farms of Alaba, southern Ethiopia. Results are based on survey of 150 sample households and rapid appraisal of major sheep and goat markets...
Kocho, T.K.
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[Production and marketing systems of sheep and goats in Alaba, Southern Ethiopia]
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Production and marketing systems of sheep and goats in Alaba, Southern Ethiopia
This paper focusses on within-breed genetic variation in resistance to endoparasites in the Australian Merino. It stresses possible differences in the Merino resistance, simply because of different history of management. The Australian Merino was introduced into Australia 200 years ago. It has al...
Woolaston, R.R.
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[Resistance to endoparasites in small ruminants: Genetic considerations]
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Resistance to endoparasites in small ruminants: Genetic considerations
This overview aims at browsing the scene of action for research on the resistance of small ruminant to endoparasites in sub-Saharan Africa. After recalling the main sheep and goat breeds, it describes the geographic distribution of these populations in the continent, mentions the farming systems ...
Rey, B.
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[Small ruminant genetic resources and parasite challenge in sub-Saharan Africa]
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Small ruminant genetic resources and parasite challenge in sub-Saharan Africa
The paper focusses on the genetic control of immunoresponsiveness in Trichostrongylus selection lines. It discusses results from other selection programmes in which some characterisation of the immune - response system has been undertaken. It is Reported that some aspects of this work may not hav...
Windon, R.
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[Resistance to endoparasites in small ruminants: Immunological considerations]
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Resistance to endoparasites in small ruminants: Immunological considerations
Two village flocks of Djallonke sheep were studied during a two year period to evaluate reproductive performance, describe management methods and to analyse flock structure. Age at first lambing was 15 months but was very variable. The fertility rate of 77 per cent showed that very few females ga...
Niare, T.
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Dembele, I.
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Traoré, M.I.
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[Factors affecting the productivity of Djallonke sheep in Mali]
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Factors affecting the productivity of Djallonke sheep in Mali
Designing breeding schemes suitable for smallholder livestock production systems in developing regions has hitherto been a challenge. The suggested schemes either do not address farmers’ breeding goals (centralized station-based nucleus schemes) or yield slow genetic progress (village-based schem...
Gizaw, Solomon
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Getachew, T.
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Tibbo, Markos
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Haile, Aynalem
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Dessie, Tadelle
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[Congruence between selection on breeding values and farmers’ selection criteria in sheep breeding under conventional nucleus breeding schemes]
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Congruence between selection on breeding values and farmers’ selection criteria in sheep breeding under conventional nucleus breeding schemes
Presents and discusses operation and capital cost of quarantining, purchasing policy, pattern of disease incidence. Summarises methodology for quarantine. Includes recommendations.
Information on the utilisation of legume hays from an intercropping system as a feed supplement is limited. Three forage legume hays (Stylosanthes guianensis, Lablab purpureus and Aeschynomene histrix) were compared by feeding them as supplements for yearling West African Dwarf rams (LWt 18.0±2.2...
Akinlade, J.
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Smith, Jimmy W.
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Larbi, Asamoah
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Archibald, A.L.
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Adekunle, I.O.
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[Forage from cropping systems as dry season supplements for sheep]
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Forage from cropping systems as dry season supplements for sheep
Presents papers that discusses results of research conducted so far on browse use and small ruminant production in southeast Nigeria. Examines sheep and goat production in humid Cross River state. Presents results of surveys on small ruminant population and farming systems in Cross Rivers State; ...
Reynolds, L.
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Atta-Krah, A.N.
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[Browse use and small ruminant production in Southeast Nigeria. Proceedings of a symposium]
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Browse use and small ruminant production in Southeast Nigeria. Proceedings of a symposium