Перейти в український iнтерфейс (версiю) / Change to Ukrainian interface versionПерейти в англiйський iнтерфейс (версiю) / Change to English interface versionПерейти в росiйський iнтерфейс (версiю) / Change to Russian interface versionПочаткова сторiнка / Home pageОчистити останнi запитуванi результати / Clear last query resultsДовiдкова сторiнка / Help page
Пошук спецiальних термiнiв / Search for specific termsПерегляд по тематичним категорiям / Browse by subject categoryПерегляд списку заголовкiв по алфавiту / Browse alphabetical list of titlesПерегляд по органiзацiям / Browse by organizationПерегляд спецiального тематичного видання / Browse special topic issues

Закрити книгу / close this bookAbstracts on Sustainable Agriculture (GTZ; 1992; 423 pages)
Вiдкрити папку i переглянути змiст / Open this folder and view contentsAbstracts On Traditional Land-Use Systems
Вiдкрити папку i переглянути змiст / Open this folder and view contentsAbstracts on farming systems research and development
Закрити папку / close this folderAbstracts on integrated systems
Перегляд документу / View the documentAcknowledgements
Перегляд документу / View the document1. Intensive sustainable livestock production: an alternative to tropical deforestation.
Перегляд документу / View the document2. Utilization of the african giant land snail in the humid area of nigeria.
Перегляд документу / View the document3. Important issues of small-holder livestock sector worldwide.
Перегляд документу / View the document4. Small ruminant production in developing countries.
Перегляд документу / View the document5. Microlivestock little-known small animals with a promising economic future.
Перегляд документу / View the document6. Assisting African livestock keepers.
Перегляд документу / View the document7. Deer farming.
Перегляд документу / View the document8. Economic constraints on sheep and goat production in developing countries.
Перегляд документу / View the document9. Sheep. Pigs.
Перегляд документу / View the document10. Strategies to increase sheep production in East Africa.
Перегляд документу / View the document11. Alternatives to imported compound feeds for growing pigs in solomon islands.
Перегляд документу / View the document12. Economic analysis of on-farm dairy animal research and its relevance to development.
Перегляд документу / View the document13. Grazing management: science into practice.
Перегляд документу / View the document14. Fish-farming in sub-Saharan Africa: case studies in the francophone countries - proposals for future action.
Перегляд документу / View the document15. Research and education for the development of integrated crop-livestock-fish farming systems in the tropics.
Перегляд документу / View the document16. Goats/fish integrated farming in the philippines.
Перегляд документу / View the document17. The sustainability of aquaculture as a farm enterprise in Rwanda.
Перегляд документу / View the document18. Double-cropping malaysian prawns, macrobrachium rosenbergii, and red swamp crawfish, procambarus clarkii.
Перегляд документу / View the document19. Rice/fish farming in Malaysia: a resource optimization
Перегляд документу / View the document20. Biotechnology in fishfarms: integrated farming or transgenic fish?
Перегляд документу / View the document21. Agricultural engineering in the development: tillage for crop production in areas of low rainfall.
Вiдкрити папку i переглянути змiст / Open this folder and view contentsAbstracts on cropping system
Вiдкрити папку i переглянути змiст / Open this folder and view contentsAbstracts on agroecology
Вiдкрити папку i переглянути змiст / Open this folder and view contentsAbstracts on agrometeorology
Вiдкрити папку i переглянути змiст / Open this folder and view contentsAbstracts on agroforestry
Вiдкрити папку i переглянути змiст / Open this folder and view contentsAbstracts on homegardens
Вiдкрити папку i переглянути змiст / Open this folder and view contentsAbstracts on seed production
Вiдкрити папку i переглянути змiст / Open this folder and view contentsAbstracts on plant protection
Вiдкрити папку i переглянути змiст / Open this folder and view contentsAbstracts on water management
Вiдкрити папку i переглянути змiст / Open this folder and view contentsAbstracts on soil fertility
Вiдкрити папку i переглянути змiст / Open this folder and view contentsAbstracts on erosion and desertification control
Вiдкрити папку i переглянути змiст / Open this folder and view contentsAbstracts on potential crops for marginal lands
 

10. Strategies to increase sheep production in East Africa.

In: FAO Animal Production and Health Paper 58; FAO, Rome, Italy; pp. 118-123

Sheep in eastern Africa are managed in traditional systems. The end product is almost entirely meat, either for home consumption or to an internal or external market through sales. In parts of Sudan, sheep are also kept to provide milk.

In most traditional societies, first lambing occurs at 15-18 months when ewe weights are 80-85 per cent of mature size. Control of age at first breeding usually means delaying this and may result in first lambing not taking place until 2 years or older.

Total lifetime production of young can be increased by encouraging first lambing at early ages.

The growth rate is an important factor in livestock productivity. In traditional systems, because of overstocking, genetic potential is rarely expressed. Growth rates vary from as little as 40 g per day in Kenya Masai sheep to as much as 70 g per day in Sudan Desert type from western Sudan.

As an example of the potential for increased growth under improved conditions of nutrition and management, the "Mouton de Case" sheep in West Africa achieves a growth rate of 117 g per day to 40 weeks of age compared with only 60 g for its range-reared contemporaries.

Management practices in many traditional societies are such that the best adapted sheep or those with superior genetic potential are not used as breeding stock. This is because of the cultural or religious requirements for large fat sheep for slaughter at social and sacrificial occasions.

Pre-weaning mortality has been shown to be an extremely important constraint on productivity of sheep. Levels of up to 30 or even 40 per cent losses before weaning are not uncommon.

The standard approach to improving the supposedly unproductive indigenous African sheep types has been to import exotic breeds, usually of European origin.

There have rarely been successful transfer of these breeds to traditional systems. In East Africa, successes have almost entirely been confined to those cases where modern management practices can be assured and high levels of veterinary and nutritional inputs maintained.

Identifying these practices and abilities and extending them to other owners would lead to overall improvement. A plan for improvement of a traditional flock with the minimum of outside and costly interventions is shown in this paper.

1079 92 - 3/129

Integrated systems

Pacific, Solomon Islands, pig production, compound feeds, pig feeds

THORNE, P.J.

Попередня секцiя / to previous section Наступна секцiя / to next section

[Українська]  [англiйська]  [росiйська]