Studies on the livestock of southern Darfur, Sudan. III. Production traits in sheep

The result of an intensive 15 months study of 10 flocks of indigenous sheep is recorded. Lambing rates approach 1.5 lambs per ewe per year, but a death rate of 23 percent and on off take of 27 per cent, means that flock numbers are probably slightly declining. Twins account for 14 per cent of all births but the death rate of twin lambs is almost twice that of single lambs up to 6 months of age. Increased productivity is therefore more likely to be achieved by improving the survival and growth rates of single lambs that by selection for twining. The weighed average rate of lightweight gain for all surviving lambs is 82g per day up to 1 year of age, and is better than that recorded for any other indigenous African sheep. Meat production per kg of breeding female, at 0.253 kg up to 6 months of age of the young, is almost six times the production of cattle under the same management and environmental conditions, but is inferior to that of goats.

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Bibliographic Details
Main Author: Wilson, R.T.
Format: Journal Article biblioteca
Language:English
Published: Springer 1976-12
Subjects:sheep, breeds, reproduction, livestock, animal performance, growth rate, mortality, mutton, milk yield, north africa,
Online Access:https://hdl.handle.net/10568/66987
https://doi.org/10.1007/BF02383365
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spelling dig-cgspace-10568-669872023-12-08T19:36:04Z Studies on the livestock of southern Darfur, Sudan. III. Production traits in sheep Wilson, R.T. sheep breeds reproduction livestock animal performance growth rate mortality mutton milk yield north africa The result of an intensive 15 months study of 10 flocks of indigenous sheep is recorded. Lambing rates approach 1.5 lambs per ewe per year, but a death rate of 23 percent and on off take of 27 per cent, means that flock numbers are probably slightly declining. Twins account for 14 per cent of all births but the death rate of twin lambs is almost twice that of single lambs up to 6 months of age. Increased productivity is therefore more likely to be achieved by improving the survival and growth rates of single lambs that by selection for twining. The weighed average rate of lightweight gain for all surviving lambs is 82g per day up to 1 year of age, and is better than that recorded for any other indigenous African sheep. Meat production per kg of breeding female, at 0.253 kg up to 6 months of age of the young, is almost six times the production of cattle under the same management and environmental conditions, but is inferior to that of goats. 1976-12 2015-06-05T12:18:54Z 2015-06-05T12:18:54Z Journal Article Wilson, R.T. 1976. Studies on the livestock of southern Darfur, Sudan. III. Production traits in sheep. Tropical Animal Health and Production 8: 103-114. 0049-4747 1573-7438 https://hdl.handle.net/10568/66987 https://doi.org/10.1007/BF02383365 en Copyrighted; all rights reserved Limited Access p. 47-57 Springer Tropical Animal Health and Production
institution CGIAR
collection DSpace
country Francia
countrycode FR
component Bibliográfico
access En linea
databasecode dig-cgspace
tag biblioteca
region Europa del Oeste
libraryname Biblioteca del CGIAR
language English
topic sheep
breeds
reproduction
livestock
animal performance
growth rate
mortality
mutton
milk yield
north africa
sheep
breeds
reproduction
livestock
animal performance
growth rate
mortality
mutton
milk yield
north africa
spellingShingle sheep
breeds
reproduction
livestock
animal performance
growth rate
mortality
mutton
milk yield
north africa
sheep
breeds
reproduction
livestock
animal performance
growth rate
mortality
mutton
milk yield
north africa
Wilson, R.T.
Studies on the livestock of southern Darfur, Sudan. III. Production traits in sheep
description The result of an intensive 15 months study of 10 flocks of indigenous sheep is recorded. Lambing rates approach 1.5 lambs per ewe per year, but a death rate of 23 percent and on off take of 27 per cent, means that flock numbers are probably slightly declining. Twins account for 14 per cent of all births but the death rate of twin lambs is almost twice that of single lambs up to 6 months of age. Increased productivity is therefore more likely to be achieved by improving the survival and growth rates of single lambs that by selection for twining. The weighed average rate of lightweight gain for all surviving lambs is 82g per day up to 1 year of age, and is better than that recorded for any other indigenous African sheep. Meat production per kg of breeding female, at 0.253 kg up to 6 months of age of the young, is almost six times the production of cattle under the same management and environmental conditions, but is inferior to that of goats.
format Journal Article
topic_facet sheep
breeds
reproduction
livestock
animal performance
growth rate
mortality
mutton
milk yield
north africa
author Wilson, R.T.
author_facet Wilson, R.T.
author_sort Wilson, R.T.
title Studies on the livestock of southern Darfur, Sudan. III. Production traits in sheep
title_short Studies on the livestock of southern Darfur, Sudan. III. Production traits in sheep
title_full Studies on the livestock of southern Darfur, Sudan. III. Production traits in sheep
title_fullStr Studies on the livestock of southern Darfur, Sudan. III. Production traits in sheep
title_full_unstemmed Studies on the livestock of southern Darfur, Sudan. III. Production traits in sheep
title_sort studies on the livestock of southern darfur, sudan. iii. production traits in sheep
publisher Springer
publishDate 1976-12
url https://hdl.handle.net/10568/66987
https://doi.org/10.1007/BF02383365
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