On-station characterisation of indigenous Menz and Horro sheep breeds in the central highlands of Ethiopia

On-station characterisation of indigenous Menz (n = 1639) and Horro (n = 1135) sheep of Ethiopia in the central highlands of the country was undertaken between 1992 and 1997 at the Debre Berhan Research Station of the International Livestock Research Institute (ILRI) to study the phenotypic characte...

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Autores principales: Tibbo, Markos, Ayalew, W., Awgichew, K., Ermias, E., Rege, J.E.O.
Formato: Journal Article
Lenguaje:Inglés
Publicado: Cambridge University Press 2004
Materias:
Acceso en línea:https://hdl.handle.net/10568/28618
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author Tibbo, Markos
Ayalew, W.
Awgichew, K.
Ermias, E.
Rege, J.E.O.
author_browse Awgichew, K.
Ayalew, W.
Ermias, E.
Rege, J.E.O.
Tibbo, Markos
author_facet Tibbo, Markos
Ayalew, W.
Awgichew, K.
Ermias, E.
Rege, J.E.O.
author_sort Tibbo, Markos
collection Repository of Agricultural Research Outputs (CGSpace)
description On-station characterisation of indigenous Menz (n = 1639) and Horro (n = 1135) sheep of Ethiopia in the central highlands of the country was undertaken between 1992 and 1997 at the Debre Berhan Research Station of the International Livestock Research Institute (ILRI) to study the phenotypic characteristics of the breeds. Body weights, linear body measurements, and testicular parameters were studied. The traits studied were live body weights (LWT), body length (BL), heart girth (HG), height at withers (WH), pelvic width (PW), chest depth (CD), distance between last rib and tuber coxae (DLP-ATR), scrotal circumference (SC), testicular diameter (TD), testicular length (TL), and epididymal tail diameter (ED). All except LWT (which was also measured at birth) were measured at 3, 12 and 24 months age. Fixed effects included in the analyses were breed, sex, birth type, birth season, birth year, and significant first-order interactions. The Horro sheep had significantly (P<0.05) larger LWT at all ages than the Menz by as much as 6 to 18%. In both breeds, lambs born single were significantly (P<0.05) heavier than those born as twins or triplets. In all age categories and both breeds, males were consistently heavier and larger in size than females. Except for lambs of 3 months of age, the Horro sheep had larger (at least P<0.05) testicular measurements than Menz for all age categories.
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spelling CGSpace286182024-11-15T08:52:58Z On-station characterisation of indigenous Menz and Horro sheep breeds in the central highlands of Ethiopia Tibbo, Markos Ayalew, W. Awgichew, K. Ermias, E. Rege, J.E.O. sheep (caprinae) land races highlands breeds (animals) reproduction animal health animal nutrition body weight testes (endocrine glands) measurement reproductive performance On-station characterisation of indigenous Menz (n = 1639) and Horro (n = 1135) sheep of Ethiopia in the central highlands of the country was undertaken between 1992 and 1997 at the Debre Berhan Research Station of the International Livestock Research Institute (ILRI) to study the phenotypic characteristics of the breeds. Body weights, linear body measurements, and testicular parameters were studied. The traits studied were live body weights (LWT), body length (BL), heart girth (HG), height at withers (WH), pelvic width (PW), chest depth (CD), distance between last rib and tuber coxae (DLP-ATR), scrotal circumference (SC), testicular diameter (TD), testicular length (TL), and epididymal tail diameter (ED). All except LWT (which was also measured at birth) were measured at 3, 12 and 24 months age. Fixed effects included in the analyses were breed, sex, birth type, birth season, birth year, and significant first-order interactions. The Horro sheep had significantly (P<0.05) larger LWT at all ages than the Menz by as much as 6 to 18%. In both breeds, lambs born single were significantly (P<0.05) heavier than those born as twins or triplets. In all age categories and both breeds, males were consistently heavier and larger in size than females. Except for lambs of 3 months of age, the Horro sheep had larger (at least P<0.05) testicular measurements than Menz for all age categories. 2004-04 2013-05-06T07:01:00Z 2013-05-06T07:01:00Z Journal Article https://hdl.handle.net/10568/28618 en Limited Access Cambridge University Press FAO Animal Genetic Resources Information;no. 35: 61-74
spellingShingle sheep (caprinae)
land races
highlands
breeds (animals)
reproduction
animal health
animal nutrition
body weight
testes (endocrine glands)
measurement
reproductive performance
Tibbo, Markos
Ayalew, W.
Awgichew, K.
Ermias, E.
Rege, J.E.O.
On-station characterisation of indigenous Menz and Horro sheep breeds in the central highlands of Ethiopia
title On-station characterisation of indigenous Menz and Horro sheep breeds in the central highlands of Ethiopia
title_full On-station characterisation of indigenous Menz and Horro sheep breeds in the central highlands of Ethiopia
title_fullStr On-station characterisation of indigenous Menz and Horro sheep breeds in the central highlands of Ethiopia
title_full_unstemmed On-station characterisation of indigenous Menz and Horro sheep breeds in the central highlands of Ethiopia
title_short On-station characterisation of indigenous Menz and Horro sheep breeds in the central highlands of Ethiopia
title_sort on station characterisation of indigenous menz and horro sheep breeds in the central highlands of ethiopia
topic sheep (caprinae)
land races
highlands
breeds (animals)
reproduction
animal health
animal nutrition
body weight
testes (endocrine glands)
measurement
reproductive performance
url https://hdl.handle.net/10568/28618
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