Characteristics and indices of reproduction in Dorper sheep
In seventeen adult Dorper ewes imported from South Africa into Israel and nine of their primiparous, first-generation daughters born in Israel, characteristics and indices of reproduction were determined during the period of April 1982 to April 1984. This study showed that, during the period from April 1982 to January 1984, three lambings occurred in the adult ewes; the lengths of the oestrous cycles for adult and primiparous ewes were 17.6 +/- 1.1 and 16.6 +/- 1.2 days, respectively; the number of services per ewe in oestrus were 3 +/- 1 services; the average length of pregnancy was 146-147 days; the lambing intervals were 6.2 +/- 0.46 and 7.7 +/- 0.62 months from the first to second lambing and the second to third lambing, respectively; of 17 ewes, 3 had twins in all 3 lambings (17.6%) and 4 had twins in only the first 2 lambings (23.5%). The sex ratio recorded in 70 lambs of adult ewes (in three lambings) was 41 males to 29 females (41:29). A high percentage of fecundity (137.2%) and prolificity (149%), an unrestricted breeding seasons, a short lambing interval and a short postweaning anoestrus period, recommend this breed of sheep as commercially advantageous for arid zones.
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South African Veterinary Association
1985-01
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Subjects: | Ovinos, Reproducción Animal, Oveja, Razas (animales), Sheep, Animal Reproduction, Ewes, Raza Dorper, |
Online Access: | https://journals.co.za/content/savet/56/3/AJA00382809_2882 http://hdl.handle.net/20.500.12123/7661 |
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oai:localhost:20.500.12123-76612020-08-03T17:14:16Z Characteristics and indices of reproduction in Dorper sheep Elias, P. Cohen, D. Dayenoff, Patricio Mario Ovinos Reproducción Animal Oveja Razas (animales) Sheep Animal Reproduction Ewes Razas (animales) Raza Dorper In seventeen adult Dorper ewes imported from South Africa into Israel and nine of their primiparous, first-generation daughters born in Israel, characteristics and indices of reproduction were determined during the period of April 1982 to April 1984. This study showed that, during the period from April 1982 to January 1984, three lambings occurred in the adult ewes; the lengths of the oestrous cycles for adult and primiparous ewes were 17.6 +/- 1.1 and 16.6 +/- 1.2 days, respectively; the number of services per ewe in oestrus were 3 +/- 1 services; the average length of pregnancy was 146-147 days; the lambing intervals were 6.2 +/- 0.46 and 7.7 +/- 0.62 months from the first to second lambing and the second to third lambing, respectively; of 17 ewes, 3 had twins in all 3 lambings (17.6%) and 4 had twins in only the first 2 lambings (23.5%). The sex ratio recorded in 70 lambs of adult ewes (in three lambings) was 41 males to 29 females (41:29). A high percentage of fecundity (137.2%) and prolificity (149%), an unrestricted breeding seasons, a short lambing interval and a short postweaning anoestrus period, recommend this breed of sheep as commercially advantageous for arid zones. EEA Rama Caída Fil: Elias, P. Ben-Gurian University of the Negev. Isan Centre for Comparative Medicine; Israel Fil: Cohen, D. Ben-Gurian University of the Negev. Isan Centre for Comparative Medicine; Israel Fil: Dayenoff, Patricio Mario. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rama Caída; Argentina. Ben-Gurian University of the Negev. Isan Centre for Comparative Medicine; Israel 2020-08-03T17:03:07Z 2020-08-03T17:03:07Z 1985-01 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://journals.co.za/content/savet/56/3/AJA00382809_2882 http://hdl.handle.net/20.500.12123/7661 1019-9128 2224-9435 eng info:eu-repo/semantics/openAccess application/pdf South African Veterinary Association Journal of the South African Veterinary Association 56 (3) : 127-130 (January 1985) |
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Ovinos Reproducción Animal Oveja Razas (animales) Sheep Animal Reproduction Ewes Razas (animales) Raza Dorper Ovinos Reproducción Animal Oveja Razas (animales) Sheep Animal Reproduction Ewes Razas (animales) Raza Dorper |
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Ovinos Reproducción Animal Oveja Razas (animales) Sheep Animal Reproduction Ewes Razas (animales) Raza Dorper Ovinos Reproducción Animal Oveja Razas (animales) Sheep Animal Reproduction Ewes Razas (animales) Raza Dorper Elias, P. Cohen, D. Dayenoff, Patricio Mario Characteristics and indices of reproduction in Dorper sheep |
description |
In seventeen adult Dorper ewes imported from South Africa into Israel and nine of their primiparous, first-generation daughters born in Israel, characteristics and indices of reproduction were determined during the period of April 1982 to April 1984. This study showed that, during the period from April 1982 to January 1984, three lambings occurred in the adult ewes; the lengths of the oestrous cycles for adult and primiparous ewes were 17.6 +/- 1.1 and 16.6 +/- 1.2 days, respectively; the number of services per ewe in oestrus were 3 +/- 1 services; the average length of pregnancy was 146-147 days; the lambing intervals were 6.2 +/- 0.46 and 7.7 +/- 0.62 months from the first to second lambing and the second to third lambing, respectively; of 17 ewes, 3 had twins in all 3 lambings (17.6%) and 4 had twins in only the first 2 lambings (23.5%). The sex ratio recorded in 70 lambs of adult ewes (in three lambings) was 41 males to 29 females (41:29). A high percentage of fecundity (137.2%) and prolificity (149%), an unrestricted breeding seasons, a short lambing interval and a short postweaning anoestrus period, recommend this breed of sheep as commercially advantageous for arid zones. |
format |
info:ar-repo/semantics/artículo |
topic_facet |
Ovinos Reproducción Animal Oveja Razas (animales) Sheep Animal Reproduction Ewes Razas (animales) Raza Dorper |
author |
Elias, P. Cohen, D. Dayenoff, Patricio Mario |
author_facet |
Elias, P. Cohen, D. Dayenoff, Patricio Mario |
author_sort |
Elias, P. |
title |
Characteristics and indices of reproduction in Dorper sheep |
title_short |
Characteristics and indices of reproduction in Dorper sheep |
title_full |
Characteristics and indices of reproduction in Dorper sheep |
title_fullStr |
Characteristics and indices of reproduction in Dorper sheep |
title_full_unstemmed |
Characteristics and indices of reproduction in Dorper sheep |
title_sort |
characteristics and indices of reproduction in dorper sheep |
publisher |
South African Veterinary Association |
publishDate |
1985-01 |
url |
https://journals.co.za/content/savet/56/3/AJA00382809_2882 http://hdl.handle.net/20.500.12123/7661 |
work_keys_str_mv |
AT eliasp characteristicsandindicesofreproductionindorpersheep AT cohend characteristicsandindicesofreproductionindorpersheep AT dayenoffpatriciomario characteristicsandindicesofreproductionindorpersheep |
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1756007810463694849 |