Three dam breeds, the indigenous Ankole and zebu, and the Boran from Kenya were mated to Boran Angus and Red Poll sires to investigate the relationship between dam body weight and progeny performance. Under artificial insemination, at least 10% fewer cows were detected on heat than under natural ...
Trail, J.C.M.
,
Sacker, G.D.
,
Fisher, I.L.
,
[Crossbreeding beef cattle in western Uganda. 1. Performance of Ankole, Boran and zebu cows]
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Crossbreeding beef cattle in western Uganda. 1. Performance of Ankole, Boran and zebu cows
Dorset Horn rams were used on East African Blackhead sheep in western Uganda in mutton production through improved lamb growth. The crossbred lambs were significantly heavier than the indigenous at birth. From birth to weaning at five months, the growth rates of both types were identical, being 0...
Trail, J.C.M.
,
Sacker, G.D.
,
[Production records of lambs from East African Blackhead ewes and Dorset Horn rams]
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Production records of lambs from East African Blackhead ewes and Dorset Horn rams
Background: The history of African indigenous cattle and their adaptation to environmental and human selection
pressure is at the root of their remarkable diversity. Characterization of this diversity is an essential step towards
understanding the genomic basis of productivity and adaptation to s...
This study aimed at identifying Sheko cattle keepers' preferences by way of phenotypic ranking and hypothetical choice experiment in their habitat in order to define the indigenous selection criteria. The ranking experiment report was based on 15 cows and 6 to 9 bulls. Three animals of the same s...
Bayou, E.
,
Haile, Aynalem
,
Gizaw, Solomon
,
Mekasha, Yoseph
,
[Definition of smallholder Sheko cattle keepers’ breeding objectives through phenotypic ranking and choice experiments in Ethiopia]
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Definition of smallholder Sheko cattle keepers’ breeding objectives through phenotypic ranking and choice experiments in Ethiopia
The aim of this study was to evaluate the relative resistance of Menz and Washera sheep breeds to artificial infection with Haemonchus contortus. The challenge trial was conducted at the Debre Berhan Agricultural Research Center in Ethiopia. A total of 39 (Menz=21, Washera=18) lambs of about 6 mo...
Getachew, T.
,
Alemu, B.
,
Sölkner, J.
,
Gizaw, Solomon
,
Haile, Aynalem
,
Gosheme, S.
,
Notter, D.R.
,
[Relative resistance of Menz and Washera sheep breeds to artificial infection with Haemonchus contortus in the highlands of Ethiopia]
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Relative resistance of Menz and Washera sheep breeds to artificial infection with Haemonchus contortus in the highlands of Ethiopia
Crossing local breeds with exotic breeds may be an option for increased livestock productivity. However, there is a risk for endangerment of the local breeds. One such case is in Kenya where the imported Dorper breed is used for crossbreeding with Red Maasai sheep. The aim of this study was to in...
Zonabend König, Emelie
,
Mirkena, T.
,
Strandberg, E.
,
Audho, James O.
,
Ojango, Julie M.K.
,
Malmfors, B.
,
Okeyo Mwai, Ally
,
Philipsson, J.
,
[Participatory definition of breeding objectives for sheep breeds under pastoral systems—the case of Red Maasai and Dorper sheep in Kenya]
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Participatory definition of breeding objectives for sheep breeds under pastoral systems—the case of Red Maasai and Dorper sheep in Kenya
Peste des petits ruminants virus (PPRV) causes an economically important disease of sheep and goats, primarily in developing countries. It is becoming the object of intensive international control efforts. Current vaccines do not allow vaccinated and infected animals to be distinguished (no DIVA ...
Holzer, B.
,
Taylor, G.
,
Rajko-Nenow, P.
,
Hodgson, S.
,
Okoth, Edward A.
,
Herbert, R.
,
Toye, Philip G.
,
Baron, M.D.
,
[Determination of the minimum fully protective dose of adenovirus-based DIVA vaccine against peste des petits ruminants virus challenge in East African goats]
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Determination of the minimum fully protective dose of adenovirus-based DIVA vaccine against peste des petits ruminants virus challenge in East African goats
Gastrointestinal (GI) parasitic infection is the main health constraint for small ruminant production, causing loss of weight and/or death. Red Maasai sheep have adapted to a tropical environment where extreme parasite exposure is a constant, especially with highly pathogenic Haemonchus contortus...
Benavides, M.V.
,
Sonstegard, T.S.
,
Kemp, Stephen J.
,
Mugambi, J.M.M.
,
Gibson, John P.
,
Baker, R.L.
,
Hanotte, Olivier H.
,
Marshall, Karen
,
Tassell, C. van
,
[Identification of novel loci associated with gastrointestinal parasite resistance in a red Maasai x Dorper backcross population]
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Identification of novel loci associated with gastrointestinal parasite resistance in a red Maasai x Dorper backcross population
This case study focused on a pig production system in a rural area of North Central Vietnam, with a focus on describing household pig breeding practices and estimating herd demographic parameters, particularly on reproduction. One hundred five households undertaking small-scale piglet production ...
Ieda, N
,
Quang Van Bui
,
Nga Nguyen Thi Duong
,
Lapar, Ma. Lucila
,
Marshall, Karen
,
[Characterization of smallholder pig breeding practices within a rural commune of North Central Vietnam]
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Characterization of smallholder pig breeding practices within a rural commune of North Central Vietnam
Gwakisa, P.S.
,
Kemp, Stephen J.
,
Teale, A.J.
,
[Characterization of Zebu cattle breeds in Tanzania using randomly amplified polymorphic DNA markers]
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Characterization of Zebu cattle breeds in Tanzania using randomly amplified polymorphic DNA markers